dysphagia treatment

Dysphagia Treatment

How do I treat dysphagia?

Muscles of the SwallowO To treat the dysphagia, you must understand how the SYSTEM works.O We treat the swallowing system, not the specific signs and symptoms.

O We treat the muscle dysfunction, not the aspiration or penetration.

O “Swallowing is a biomechanical process characterized quantitatively by displacement of oropharyngeal structures and associated timing and duration of movement during a swallow.” (24) (Biomechanical events include tongue base contact with the posterior pharyngeal wall, hyoid bone movement, and UES opening)

Information for Slides 3-71 taken from DPNS Manual by Karlene Stefanakos and VitalStim manual by Yorick Wijting

Lingual MusclesO Your tongue is comprised of both

intrinsic and extrinsic muscles.

Intrinsic MusclesO Shapes the tongueO Reflexes

O Tongue Base Retraction-propels bolus into pharynx

O Reflexive lingual groove-maintains cohesive bolus for pharyngeal transfer.

O Innervated by CN XIIO No sensory pathways, all motor.O Sensory is CN V, VII, IXO XII meets with above nerves at nucleus

solitarius in the brainstem.

Intrinsic Muscles of the Tongue

O TransverseO VerticalO Superior longitudinalO Inferior longitudinal

TransverseO Origin: tongue septum, median

portionO Insertion: mucosa at sides of tongueO Action: elongates, narrows, thickens

tongue, lifts the sides.O Innervation CN XII

VerticalO Origin: superior surface of tongue

near tip edges.O Insertion: inferior surface of the

tongue.O Action: assists in TBR posterior

depression (cohesive bolus, propels bolus.)

O Innervation CN XII

Superior LongitudinalO Origin: septum of tongue,

submucosoa near epiglottis.O Insertion: sides of tongueO Action: widens, thickens and

shortens tongue, raises tongue tip and edges; forms concave dorsum.O Establishes lingual-dental connection.O A-P pattern.

O Innervation CN XII

Inferior LongitudinalO Origin: hyoid bone; inferior surface

of base of tongue.O Insertion: apex of tongue.O Action: wides, shortens tongue;

creates convex dorsum, depresses teeth.O A-P pattern-assists in propulsion of

the bolus.O Innervation CN XII.

Extrinsic Muscles of the Tongue

O Give movement to the tongue.O Tongue retraction-primitive, protective reflex.

O Styloglossus with glossopalatine generate posterior lingual elevation.

O Reflexes:O Tongue base retraction-propels bolus into pharynx.O Reflexive lingual groove-maintain cohesive bolus for

pharyngeal transfer.O Reflexive protective retraction-prevents pharyngeal

infiltrate, or premature lingual spillover during mastication.

O Innervation: CN XII

Extrinsic Muscles of the Tongue

O StyloglossusO GenioglossusO Hyoglossus

StyloglossusO Origin: inferior portion of the styloid

process of the temporal bone.O Insertion: lateral border of the

tongue.O Action: elevates rear of tongue;

retracts protruded tongue during mastication.

O Innervation: CN XII.

GenioglossusO Origin: upper mental spine on

lingual surface of the mandible.O Insertion: Lingual fascia, dorsum of

tongue and body of hyoid bone.O Action: alternate fibers work to

depress, retract and protrude tongue.

O Innervation: CN XII.

HyoglossusO Origin: greater cornu of hyoid bone.O Insertion: posterior half of the side of

the tongue.O Action: depress and retracts tongue.O Innervation: CN XII.

Intrinsic Muscles of Mastication

O Reflex: jaw jerk reflex-generates rotary mastication pattern. (Returns jaw from lateral to midline).

O Mastication Patterns:O Rotary-normal.O Vertical-no lateral jaw movement, jaw jerk reflex

absent (trigeminal affected.)O Suck-swallow-primitive, motoric innervation, oral XII,

pharyngeal XO Absent O-M pattern-bilateral destruction of CN motor

lines V, X, XII.

O Tonic bite: Contraction of temporal, masseter and internal pterygoid bilateral deficit muscles exterior pterygoid, platysmus, digastric, mylohyoid, geniohyoid.

Intrinsic Muscles of Mastication

O TemporalO MasseterO Internal pterygoidO External pterygoid

TemporalO Origin: temporal fossa and the

whole of the covering fascia.O Insertion: anterior borders of

mandibular ramus and coronoid process.

O Action: raises and retracts the mandible.

O Innervation CN V (mandibular division).

MasseterO Origin: lower edge of the zygomatic

arch (superficial) medial edge of the zygomatic arch (deep).

O Insertion: lateral surface of the angle of the jaw; lateral surface of the ramus.

O Action: raises the mandible against the maxilla.

O Innervation: CN V (mandibular division).

Internal PterygoidO Origin: lateral pterygoid plate; slips

from the palatine bone; maxillary tuberosity.

O Insertion: ramus and able of mandible.

O Action: raises the mandible and protrudes the jaw.

External PterygoidO Origin: upper head arises from the

infratemporal fossa and greater wing of the sphenoid bone; lower head arises from the lateral aspect of the lateral pterygoid plate of the sphenoid bone.

O Insertion: mandibular condyle and the disc of the joint of the jaw.

O Action: depresses mandible and draws mandible forward and sideways. (additional mandible depressors: platysma, digastric posterior, mylohyoid, geniohyoid.)

O Innervation: CN V (mandibular division)

Muscles of the Soft Palate

O Reflex: Palatal Reflex-generates velopharyngeal closure.

O Functions of velopharyngeal closure:O Maximize nutritional intakeO Provide passage of bolusO Cease nasal inhalationO Triggered by anterior faucial arches

Muscles of the Soft Palate

O Levator veli palatineO Tensor veli palatineO UvulaO GlossopalatineO Pharyngopalatine

O The velum is activated by chewing.

Levator Veli PalatineO Origin: apex of the petrous portion

of the temporal bone; eustachian tube

O Insertion: aponeurosis of soft palateO Action:

O Raises soft palate to meet posterior pharyngeal wall

O Dilates eustachian tube orficeO Innervation: CN X (Pharyngeal

plexus)

Tensor Veli PalatineO Origin: scaphoid fossa; medial pterygoid

plate spine; posterior border of hard palate.

O Insertion: palatine aponeurosis; eustachian tube.

O Action: O Tenses the soft palateO Opens the eustachian tube during

swallowingO Innervation: CN V (mandibular division)

UvulaO Origin: posterior nasal spine; palatal

aponeurosis (anterior)O Insertion: mucous membrane of

uvulaO Action: raises and shortens the

uvula.O Innervation: CN X (pharyngeal

plexus)

GlossopalatineO Origin: merges with transversus and

superficial mm of side and undersurface of tongue

O Insertion: palatin aponeurosisO Action:

O Raises posterior portion of tongueO Constricts isthmus of faucesO Depresses side of palate

O Innervation: CN X (pharyngeal plexus)

PharyngopalatineO Origin: posterior thyroid cartilage;

aponeurosis of pharynxO Insertion: aponeurosis of the soft

palateO Action:

O Depresses the soft palateO aids in elevating larynx and pharynxO Constricts faucial isthmus

O Innervation: CN X (pharyngeal plexus)

Muscles of the PharynxO Reflex:

O Peristalsis reflex: propels the bolus to the esophagus

O Sensory and motor innervation CN IX, X, XI

SUPERIOR CONSTRICTOR

O Origin: Lower posterior border of medial pterygoid plate; pterygomandibular ligament and raphe; mylohyoid ridge of the mandible; mucous membrane of oral cavity; sides of tongue.

O Insertion: Posterior median raphe of pharynx.

O Action: Contracts pharynx; aids movement of food bolus toward the esophagus.

O CN X-Pharyngeal Plexus

MIDDLE CONSTRICTOR

O Triggers PeristalsisO Origin: both cornua of hyoid bone;

stylohyoid ligament.O Insertion: posterior median raphe of

pharynx.O Action: contracts pharynx; aids

movement of food bolus toward esophagus.

O CN X (pharyngeal plexus)

INFERIOR CONSTRICTOR

O Triggers peristalsisO Origin: inferior side of cricoid cartilage;

obliques line of thyroid cartilage.O Insertion: posterior median raphe of

pharynx.O Action: Contracts pharynx; aids

movement of food bolus.O CN X (pharyngeal plexus)O Helps to form the pharyngoesophageal

segment (PES).

VELOPHARYNGEAL SPHINCTER

O Origin: midline of soft palate.O Insertion: posterior median raphe of

pharynx.O Action: protrusion and elevation of

portion of pharyngeal wall; aids in forcing soft palate posteriorly.

O CN X (pharyngeal plexus)

CRICOPHARYNGEAL O Origin: sides of cricoid cartilage.O Insertion: posterior median raphe of

pharynx.O Actions: contracts pharynx.O CN X (pharyngeal plexus)O PES between vertabrae 5 and 6

PHARYNGEAL LEVATOR MUSCLES

STYLOPHARYNGEAL O Origin: base of styloid process of

temporal bone.O Insertion: mucous membrane of

pharynx and thyroid cartilage.O Action: elevates and widens

pharynx.O CN IX (only group of muscles to be

innervated by IX)

SALPINGOPHARYNGEAL

O Origin: lower edge of eustachian cartilage.

O Insertion: muscous membrane of pharynx.

O Action: elevates pharynx.O CN X (pharyngeal plexus)

Intrinsic muscles of the larynx

O Lingual-laryngeal connection=CN XIIO Reflexes:

O Glottal Effort Closure Reflex which generates the airway.

O Reflexive throat clearing/cough reflex.

CRICOTHYROIDO Origin: anterior and lateral surfaces

of arch of cricoid cartilage.O Insertion: caudal border of the

thyroid cartilage; anterior surface of lower cornu of thyroid cartilage.

O Action: draws thyroid down and forward; elevates cricoid arch; lengthens, tenses vocal folds.

O CN X (superior laryngeal nerve)

CRICOARYTENOIDS LATERAL

O Origin: superior borders of cricoid cartilage.

O Insertion: anterior surface of muscular process.

O Action: draws arytenoids forward; aids in rotating arytenoids; tenses and adducts vocal folds.

O CN X (recurrent laryngeal nerve)

POSTERIORO Origin: posterior surface of cricoid

cartilage.O Insertion: muscular process of

arytenoid cartilage.O Action: rotates arytenoid, abducting

vocal processess.O CN X (recurrent laryngeal nerve).

INTERARYTENOIDS TRANSVERSE

O Origin: posterior surface of arytenoid cartilage.

O Insertion: posterior surface of opposite arytenoid.

O Action: draws together arytenoid cartilages; adducts vocal folds.

O CN X (recurrent laryngeal nerve).

OBLIQUEO Origin: base of one arytenoid

cartilage at muscular juncture.O Insertion: apex of the opposite

arytenoid.O Action: draws arytenoid cartilages

together.O CN X (recurrent laryngeal nerve).

THYROARYTENOIDO Origin: internal and inferior surface

of the angel of the thyroid cartilage.O Insertion: vocal process and anterior

lateral surface of the base of the arytenoid cartilages.

O Action: draws arytenoids forward; shortens and relaxes vocal folds.


VOCALISO Origin: inferior surface of the angle

of the thyroid cartilage.O Insertion: vocal process of the

arytenoid cartilage and vocal ligament.

O Action: differentially tenses vocal folds.


EXTRINSIC MUSCLES OF THE LARYNX

O Reflexes:O Laryngeal elevation reflex: epiglottal

ROMO Laryngeal depression reflex:

epiglottal recoil speed.

SUPRAHYOID

STYLOHYOIDO Origin: styloid process of the

temporal bone.O Insertion: body of the hyoid bone.O Action: elevates and draws hyoid

bone backward.O CN VII

DIGASTRICO Origin: anterior belly arises from internal

aspect of mandible close to midline, posterior belly arises on medial side of mastoid process of temporal bone.

O Insertion: intermediate tendon and the hyoid bone.

O Action: elevates hyoid; depresses mandible.

O CN V (anterior belly) CN VII (posterior belly).

MYLOHYOIDO Origin: mylohyoid ridge of mandible.O Insertion: hyoid bone and median

raphe.O Action: raises and projects hyoid

bone and tongue.O CN V.

GENIOHYOIDO Origin: internal surface of the

mandible at the inferior mental spine.

O Insertion: anterior surface of the hyoid bone.

O Action: draws tongue and hyoid bone forward.

O CN XII.

INFRAHYOIDO Unsupervised cup drinking and straw

usage.O Goes with larynx muscles.

STERNOHYOID C1-C3O Origin: medial extremity of clavicle;

superior and posterior portion of the sternum; sternoclavicular ligament.

O Insertion: body of the hyoid bone, inferior surface.

O Action: depresses hyoid bone.O CN XII.

STERNOTHYROID C1-C3

O Origin: superior and posterior portion of the sternum and first costal cartilage.

O Insertion: oblique line of thyroid cartilage.

O Action: depresses the thyroid cartilage.

O CN XII

THYROHYOIDO Origin: oblique line of the thyroid

cartilage.O Insertion: body and greater cornu of

hyoid bone.O Action: depresses hyoid bone or

elevates larynx.O CN XII

OMOHYOID C1O Origin: superior margin of scapula.O Insertion: inferior border of the body

of the hyoid bone.O Action: depress and retracts the

hyoid bone.O CN XII.

MUSCLES OF FACIAL EXPRESSION

O Control levels:O Cortical (conscious): middle brainO Brainstem (oral stage swallow)

QUADRATUS LABIL SUPERIOR

O Origin: frontal process maxilla; lower margin of orbit; zygomatic bone.

O Insertion: upper lip at midline.O Action: elevates upper lipO CN VII

ZYGOMATIC MINORO Origin: canine fossa of the maxilla.O Insertion: angle of mouth, upper lip.O Action: elevates portion of upper lip.O CN VII.

ZYGOMATIC MAJORO Origin: zygomatic bone.O Insertion: angle of mouth; upper lip.O Action: draws corner of mouth up

and back.O CN VII.

RISORIUSO Origin: fascia over masseter.O Insertion: skin at angle of mouth.O Action: retracts corner of mouth.O CN VII.

DEPRESSOR ANGULIO Origin: oblique line of mandible.O Insertion: angle of mouth, lower lip.O Action: depresses angle of mouth.O CN VII.

QUADRATUS LABII INFERIOR

O Origin: oblique line of mandible (anterior).

O Insertion: lower lip at angle of mouth.

O Action: depresses and retracts lower lip.

O CN VII.

MENTALO Origin: incisive fossa of mandible.O Insertion: integument of chin.O Action: raises and protrudes lower

lip.O CN VII.

ORBICULARIS ORISO Origin: a sphincteric muscle, driving

from others of the area, with no definite origins or insertions.

O Action: closes mouth and puckers lip.

O CN VII.

BUCCINATORO Origin: alvoelar ridges of maxilla

and mandible; pterygomandibular raphe.

O Insertion: angle of the mouth mingling with fibers of mm forming upper and lower lips.

O Actions: flattens cheek.O CN VII.

PLATYSMAO Origin: thoracic fascia over

pectoralis major, deltoid and trapezious mm.

O Insertion: mental protuberance of the mandible, skin of cheek and corner of mouth.

O Action: depresses mandible; aids in pouting reaction; depresses corner of mouth, wrinkles skin of neck and chin.

O CN VII.

EsophagusO Swallowing starts primary peristaltic

wave.O Something stuck in the esophagus

starts a secondary wave.O Negative pressureO Peristalsis depends on

size/temperature of bolus.

hyoidO Only bone in the swallowing

mechanism.O Forms foundation of the tongue-

embedded in the base of the tongue suspended by floor of mouth muscles and posterior belly of the digastric and sylohyoid.

LarynxO Suspended from hyoid by thyrohyoid

ligament and thyrohyoid muscle.O Movement of hyoid moves larynx

unless stabilized by other muscles.O The opening is know as the laryngeal

vestibule.O Contains false vocal folds, true vocal

folds, ary-epiglottic folds, arytenoid cartilage.

TongueO Entirely made of muscle.O Consists of tip, blade, front, center, backO Pharyngeal tongue at circumvallate

papillae to hyoid.O Contains taste buds allowing us to taste

foods.O Moves the bolus within the oral cavity for

proper mastication of bolus and propels the bolus posteriorly initiating the pharyngeal stage of the swallow.

TEETHO Dentition is important for swallowing

and it is important to assess dentition for appropriate diet recommendations.

O Poor oral hygiene can contribute to aspiration pneumonia in patients with dysphagia.

CheeksO Buccal tension

O Assists in creating appropriate pressures for initiating the pharyngeal swallow.

O Assists in maintaining the bolus.O Helps to prevent lateral pocketing of

the bolus.

Roof of mouthO Maxilla (hard palate, velum, soft

palate and uvula.O Soft palate is pulled down by

palatoglossus, elevated/retracted by palatopharyngeus, levator palatal and superior pharyngeal constrictor.

Salivary GlandsO Parotid, submandibular, sublingualO Found on sides, tongue, lips, cheeks

and roof of mouth.O 2 types of fluid: viscid (from parotid-

thicker, mucous-like fluid) and serous (thinner, watery).

O Maintains oral moisture, reduces tooth decay, assists in digestion, natural neutralizer of stomach acid.

CRANIAL NERVE V: TRIGEMINAL

O Cutaneous pressure sensation to anteror 2/3 of tongue.O Thermal sensation hot/cold (safety).O Oral pain.O Cutaneous pressure sensation to all teeth, lips, chin, tongue, oral gums,

hard and soft palate.O Salivary flow to major and minor glands.O Mouth opening (ext. pterygoids).O Mandible movement (temporalis, masseter, lat/med pterygoids)-moves

mandible from side to side, elevate and protrude the jaw.O Innervates muscles of mastication.O Innervates floor muscles with aid in elevation of larynx (mylohyoid, ant.

Belly of digastric)-depresses mandible, raises hyoid bone, stabilizes hyoid bone.

O Aids in velopharyngeal closure (tensor veli palatine)-tenses soft palate prior to elevation.

O Everything powered to contraction by V is mandibular (mastication).O Reflex: jaw jerk reflex.O Also innervates tensor tympani.

Cranial nerve v: trigeminal

O MotorO MasticationO HLEO Tenses velumo Sensoryo cheeko anterior 2/3 tongue (not taste)

**(trouble chewing)Brainstem-chewing, palate, hyoid

CRANIAL NERVE VII: FACIAL

O Taste receptors: anterior 2/3 of tongue (sweet, sour, salty).

O Autonomic salivary glands (submandibulars and sublinguals).

O Muscles of facial expression.O Lip shape and movement (orbicularis oris).O Closure of lips, cheeks and tongue (buccinator- aids in

mastication by pressing the bolus laterally into the molar teeth, platysma-depresses the mandible, stylohyoid-elevates the hyoid, retracts hyoid distally, stapedius)-

O Lip closure and prep of bolus for transfer (orbicularis oris).O Assists in hyoid bone elevation by raising and stabilizing

the hyoid bone (mylohyoid, post belly of digastric).O Raises larynx for airway protection (epiglottic ROM).

Cranial nerve vii: facialO Motor

O Lip closureO Buccal toneO HLE

O SensoryO Taste anterior 2/3 of tongueO Salivation

O **dry mouth, decreased lip closure

CRANIAL NERVE IX: GLOSSOPHARYNGEAL

O Taste receptors: posterior 1/3 of tongue (bitter).O Cutaneous pressure receptors, pain, thermal receptors,

posterior 1/3 of tongue.O General cutaneous pressure receptors on palatal arch,

soft palate, tonsils, mucous membrane of oropharynx, facial pillars and eustachian tube.

O Autonomic secretory function of parotid salivary glands.O Assists in velopharyngeal closure to prevent reflux to

nose at start of pharyngeal and end of oral phase through elevation of larynx and pharynx (stylopharyngeal-only muscle).

O Upper pharyngeal constrictor fibers.O General cutaneous pressure/thermal/pain sensation of

upper pharynx.

CRANIAL NERVE IX: GLOSSOPHARYNGEAL

O MotorO Pharyngeal constrictionO Pharyngeal shortening

O SensoryO Taste/sensation posterior 1/3 of tongue, velum,

faucial arches, superior portion of pharynx

O **no thermal stimulation, pharyngeal phase dysphagia

O **oropharynxO Faucial arches-trigger swallow

CRANIAL NERVE XII: HYPOGLOSSAL

O Only motor/no sensory pathways.O Tongue movement to posterior oral cavity (A-P propulsion pattern and lingual-alvoelar

seal).O Creating bolus of proper size (int/ext muscles).O Collection of food partilces from lateral/anterior sulci, palate and molars (int/ext

muscles).O Mixing bolus with saliva.O Alvoelar-palatal contact before swallow (inf./sup. Longitudinals, transverse, vertical).O Transporting bolus from mid-palate to posterior 1/3 of tongue (same as above).O Bolus transport to pharynx.O Raises and lowers the hyoid bone to protect the airway (supra/infra muscles).O Tongue base retraction and lingual groove reflex and reflexive protective retraction.O **if sensory decreased cannot get movement**O Genioglossus-depresses tongue and allows protrusion, hypoglossus-depresses and

retracts tongue.O styloglossus-retracts tongue and draws up lateral borders to generate a chuteO Geniohyoid-pulls hyoid anteriorly and superiorly widening the pharynx and pulling the

larynx out of the bolus path.O Sternohyoid, omohyoid, sternothyroid and thyrohyoid (infrahyoids)-depress the hyoid

after swallow or stabilizes the hyoid and elevates the larynx.

CRANIAL NERVE XII: HYPOGLOSSAL

O MotorO Tongue motilityO HLE

O **decreased laryngeal elevationO **no sensory component

CRANIAL NERVE X: VAGUS

O Taste receptors in pharynx and epiglottis/mucosa of valleculae.O Visceral sensation from pharynx and larynx.O Trachea.O Pharyngeal reflexes and pharyngeal constrictor muscles except

sylopharyngeus. Superior, meidal and inferior constrictors to constrict the walls of the pharynx.

O Salpinopharyngeus-elevates pharynx and larynx.O Laryngeal reflexes-all laryngeal muscles (intrinsic laryngeal muscles-oppose

vocal cords to protect the airway during the swallow, cricothyroid tips thyroid cartilage anteriorly to help protect the airway during the swallow).

O General sensation of abdominal viscera.O Upper esophageal sphincter (UES) function-cricopharyngeus inhibits reflux.O Peristalsis/motility of esophagus.O Velopharyngeal closure-all muscles of soft palate except tensor veli palatine

(levator veli palatini elevates the soft palate).O Palatoglossus-elevates posterior part of the tongue and draws the soft palate

onto the tongue. Palatopharyngeus tenses the soft palate, draws pharynx superiorly, anteriorly and medially.

O Supraglottis CN X-laryngeal branch.

CRANIAL NERVE X: VAGUS

O MotorO VP closureO TBRO UES closure/openingO Esophageal motility

O SensoryO Posterior/inferior portions of pharynxO LarynxO Esophagus

O **affects entire swallowO **recurrent laryngeal nerve can be affected by lung tumor

or sx cervical vertabraeO Gag reflex=relating to dysphagia if bilateral gag is absent.

SWALLOWING FACTSO Approximately 300,000 to 600,000 people

with neurogenic disorders are diagnosed with dysphagia.

O Swallowing involves the use of 6 cranial nerves.

O Approximately 40% of patients with dysphagia silently aspirate.

O Swallowing is one of the most complex body reflexes, yet in the normal adult, this process is automatic, effortless and efficiently performed an average of 600 times a day.

The swallowO We swallow 1x/minute at rest.O We swallow to manage secretions and for hydration/nutrition.O Start swallowing at 12 weeks gestation.O Swallowing involves the activation of 55 muscles, via

innervation of 6 cranial nerves. It is a voluntary system.O Muscles work together to create pressure. Without pressure in

the oral cavity, tongue and tongue base loses function.O The tongue is the major force in the swallow.O Pharyngeal constriction-stripping wave (sup/med/inf

constrictors).O Pharyngeal contraction-narrows and shortens

(stylopharyngeus, palatopharyngeus, salpingopharyngeus.)O We increase timing, coordination and pressure of the

swallow.O Should be fast and explosive.

DysphagiaO Dysfunction=what is not right.O Impairment-=why the system is not working

right.O Symptoms=clinical indicatorsO MASA is the only standardized bedside

swallowing assessment.O Complications=pneumonia, malnutrition,

dehydrationO Swallow Apraxia/Tactile Agnosia-not

recognizing food or able to orally initiate swallow.

ORAL CAREO Microorganisms found in the lungs of elderly patients

with pneumonia originate in the mouth and gingival, making a link between poor oral hygiene and aspiration pneumonia.O Three categories that add to the risk factors that lead to

aspiration pneumonia: any factor that increases the bacterial load or colonization in the oral-pharyngeal cavity (lack of tooth-brushing, xerostomia).

O Any factor that decreases the patient’s resistance to the inoculums (i.e. malnutrition or ventilator dependency.)

O Any factor that increases the risk of aspiration (i.e. paralysis from stroke or chronic neurological disease affecting the muscles and nerves involved in swallowing.

PATIENTS AT RISK FOR ASPIRATION PNEUMONIA

O Patients who are dependent for oral careO Have large numbers of missing teethO DenturesO Have limited hand dexterityO Decreased mental capacityO Multiple medical co-morbiditiesO ImmunosuppressedO Ventilator dependantO Receive non-prandial feedingsO Have had a strokeO Neurologically impairedO XerostomiaO Known dysphagiaO Poor access to professional dental careO Active smokingO DepressionO Use of sedative medicineO Use of gastric acid-reducing medicationO Use of ACE inhibitorO Poor feeding position

Norms for swallowingO Hyoid increases ½ to 1 cervical vertabrae (hyoid rests at

C3-4/thyroid rests at C4-5)O Pharyngeal squeeze-airspace is obliterated.O Barium passes through the PES in a single column.O Lips closed, cheeks tensed.O Velum goes up and back to make contact with the superior

pharyngeal constrictor.O Tongue Base retracts to meet the SPC and velum.O Hyoid and thyroid approximateO Hyoid forward to about halfway between anterior and

posterior mandible (geniohyoid).O PES rests at C5-7.O Pharyngeal contraction-Pharynx shortens 1.5 cm from

tongue base to PES.

Phases of the SwallowO Oral Prepatory Phase-Sensory recognition of

food approaching the mouth and placed in the mouth. Tongue seals around bolus, oral manipulation, mastication with rotary jaw motion.

O “tippers”-food held between midline of tongue and hard palate with tongue tip elevated.

O “dippers”-approximately 20% of people-held on the floor of the mouth in front of the tongue.

O Sensory information processed throughout the tongue and oral cavity

Phases of the SwallowO Oral Phase-initiated when the tongue begins

posterior movement of the bolus.O If dipper, tongue tip moves bolus up and collects

on tongue.O Tongue movement is described as a stripping

wave.O Increased viscosity=increased tongue-palate

pressure.O Less than 1-1.5 seconds to complete.O Involves-labial seal, lingual movement, buccal

tension, palatal muscles, ability to breath through nasal passages.

Phases of the SwallowO As tongue propels bolus, sensory receptors

in the oropharynx and tongue send info to the brainstem and cortex.

O Pharyngeal swallow is triggered when bolus head reaches point where mandible crosses the tongue base.

O The following must occur: velopharyngeal closure, elevation/anterior movement of hyoid, closure of larynx, cricopharyngeal opening, tongue base and pharyngeal wall movement.

Phases of the SwallowO Esophageal phaseO From when the bolus passes through

the PES and through the LES.

Swallow in detailO Hunger

O Smell of food, empty stomach or electrolyte imbalance informs hypothalamus of the need to eat.

O Brainstem activates nucleii of CN VII and IX to promote secretion of salivary gland juices to prep for bolus.

*Dysphagia Foundation, Theory and Practice by Julie Cichero and Bruce Murdoch*

Swallow in detailO Chewing

O Bolus in mouth. CN VII ensures good lip seal (orbicularis oris) while CN V relays sensory info to brainstem to constantly modify the fine motor control of bolus prep.

O Motor activity to CN V, VII, IX, X, XII to create an enclosed environment within the mouth to prepare the bolus.

O Cheeks provide tone (buccinator CN VII)O Soft palate tense and drawn down towards tongue (tensor veli palatini CN V and

palatopharyngeus CN IX)O Tongue is drawn up towards the soft palate (palatopharyngeus CN X, styloglossus

CN XII)O Hyoid bone is stabilized (infrahyoid muscles CN XII and C1-C3) to allow

movement of the mandible).O Bolus prepared by closing (temporalis, masseter, meial pterygoid, lateral

pterygoid, CN V) and opening (mylohyoid and anterior belly of digastric CN V, geniohyoid CN XII &C1-C3.)

O Bolus pushed around the mouth by actions of the tongue to create a consistent, homogenous texture (hypoglossus, genioglossus, styloglossus and 4 groups of intrinsic muscles of the tongue CN XII).

O Taste sensations (CN VII and IX) provide info to cortex to stimulate areas of brain required to coordinate the swallow (insula and cingulate cortex).


Swallow in detailO Volutary initiation

O Once bolus is adequately prepared.O Soft palate elevates slightly (levator veli palatini and

palatopharyngeus CN X).O Slight elevation of hyoid bone (suprahyoid muscles

contracting on rigid mandible with slight relaxation of infrahyoid muscles.

O Pharyngeal tube is elevated (stylopharyngeus CN IX, palatopharyngeus and salpingopharyngeus CN X).

O Tongue delivers bolus to force bolus distally towards posterior wall of the pharynx in a “piston-like” manner using hard palate for resistance.

O Sensation by CN XI and by CN X (pharyngeal plexus).


Swallow in detailO Larngeal elevation

O 1st motion for tongue to propel bolus into oropharynx is elevated anterior direction toward roof of mouth (mylohyoid and anterior belly of digastric, CN V; stylohyoid and posterior belly of digastric CN VII; palatoplossus CN X; genioglossus, hyoglossus and styloglossus CN XII; geniohyoid CN XII and C1-C3) affects hyoid elevation in an anterior direction.

O Soft palate seals off nasopharynx.O Superior constrictors begin medialization of the

lateral walls.O Larynx elevated and moved anteriorly in relation to

hyoid bone by thyrohyoid CN X.*Dysphagia Foundation, Theory and Practice by Julie Cichero and Bruce Murdoch*

Swallow in DetailO Laryngeal closure

O During laryngeal elevation-vestibule closes and rises relative to thyroid cartilage (cricothyroid and intrinsic laryngeal muscles CN X).

O Opposition and elevation of arytenoid cartilages provide “medial curtains” of pyriform recesses (aryeppiglottic folds).

O Pressure exerted on base of epiglottis causing it to tip and cover the laryngeal vestibule.

O Medial constrictors (CN X) “strip” the pharynx by medialization following on from superior constrictors.

O Palate descends (palatopharyngeus CN X), constrictors “strip” and tongue moves posteriorly (styloglossus CN XII) to close oropharynx.

O Once the bolus has reached pharyngeal areas innervated by the internal branch of the superior laryngeal nerve swallow reflexive and cannot be stopped.

O Anterior and elevated movement of larynx allows cricopharyngeus to be stretched (UES) and opened.

O Inferior constrictor finishes medialization and bolus in esophagus.


Swallow in detailO Resting state

O CN XO Cricopharyngeus resumes tonic state.O Glottic opens and larynx lowers.O If bolus present should cough.O Tongue and hyoid and palate return to resting position.

**Oral phase for liquid boluses should take 1 second and the pharyngeal phase with all consistencies should take 1 second.

**The ability to contain a bolus is prognostic.**The swallow is a positive pressure phenomena where the

pressure is always on the tail of the bolus.


Age Differences in Swallowing

O Infants-tongue fills oral cavity, fat pads in cheeks narrow oral cavity, hyoid and larynx are higher than in adults (more natural protection for airway), velum hangs lower, uvula rests inside the epiglottis forming a pocket in the valleculae.

O When the tongue pumps, the bolus is collected at the back of the mouth in front of an anteriorly bulging velum or in vallecular pocket.

O Swallowing begins with the fetus.O 2-7 tongue pumps per swallow.O Bite is achieved at 7 months, chewing at 10-12

months, normal adult chewing pattern around 3-4 years.

Aging ChangesO The 60 – 80-year-old

O Timing of the Swallow O Oral transit times slightly but significantly longer in older adults (.5-.6 sec). Tipper (tongue tip

against alveolar ridge at initiation of swallow) vs. dipper (tongue tip behind lower teeth at initiation of swallow) swallow types - Elderly more often dippers

O Pharyngeal delay times slightly but significantly longer in older adults (.5-.6 sec) O Pharyngeal wall contraction inconsistently found to be slower Reduced tongue pressure

O Safety and Efficiency of the Swallow O Penetration occurs more frequently O Aspiration occurs no more frequently in the elderly O Residue is generally only slightly greater (2-3%) in the elderly than in younger adults

O 80+ year-olds - Range and pattern of pharyngeal movements during the swallow in O 80-year-olds are different from younger adults which increase the older adult's risk of dysphagia

as the result of illness and subsequent general weakness. O Reduced reserve - especially in men O Hyoid & laryngeal maximum vertical movement significantly reduced in the elderly (over age 80) O Hyoid and laryngeal movements up to the time of cricopharyngeal opening virtually identical in young

adults and elderly patients O Reduced flexibility

O Cricopharyngeal opening durations across volumes reduced in the elderly O Cricopharyngeal opening diameter across volumes reduced in the elderly

O Timing similar to 60-80-year-olds O Safety and efficiency of swallow unchanged Range of motion exercises may improve reserve and flexibility in otherwise normal, healthy elderly.

Age Differences in Swallowing

O Aged SwallowO Masticatory performance is maintained. More chewing

strokes needed with poor dentition or dentures.O At 70 and older, the larynx may be lower in the neck, around

the 7th vertabrae.O Arthritic changes in the cervical vertebrae may impinge on

the pharyngeal wall, decreasing flexibility. May cause decreased strength of contraction.

O More older adults use a “dipper” swallow.O Oral stage slightly longer.O Slight increase in oral/pharyngeal residueO Penetration increases, but not aspiration.O Younger men had laryngeal elevation reserve, elderly men did

not.O Older=decreased flexibility with cricopharyngeal opening.

Movements of the swallow

o Larynx elevates 2 cm.o Arytenoids contact base of epiglottis.o Movement of tongue base is major pressure generating force of swallow.o Posterior movement of tongue base 2/3 of distance to posterior pharyngeal wall,

anterior bulging of pharynx covers approximately 1/3.o PES opening involves: relaxation of cricopharyngeus, hyolaryngeal excursion (anterior

movement of cricoid cartilage, bolus pressure. (only negative prssure generator of the swallow).

o Typically no bolus hesitation in pyriform sinuses, the bolus head reaches PES as it opens.

o Saliva swallows usually 1-2 cc’s.o During swallow-bolus divides fairly evenly between valleculae and pyriform sinuses.o When the hyoid and larynx are at their extreme point, should have epiglottic inversion.o Generation of pressure by BOT is highest pressure generated during the swallow (bolus

propulsion through pharynx).o Look at epiglottic inversion and pharyngeal stripping wave for therapy (liquid is the

most revealing of the viscosities.o **You do NOT have to aspirate to have dysphagia.

(14)

Components of the swallow

O Lip closureO Hold position/tongue controlO Bolus preparation/masticationO Bolus transport/lingual motionO Initiation of the pharyngeal swallowO Soft palate elevation and retractionO Laryngeal elevationO Anterior hyoid excursionO Laryngeal closureO Pharyngeal stripping waveO Pharyngeal contractionO Pharyngoesophageal segment openingO Tongue base retractionO Esophageal clearanceRobbins J., Butler S.G., Daniels S.K., Gross R.D., Langmore S., Lazarus C.J., Martin-Harris B., McCabe D., Musson N., Rosenbek J.C.

(2008). Swallowing and dysphagia rehabilitation: Translating principles of neural plasticity into clinically oriented evidence. JSLPR; 51: S276-S300.

Movements of the swallow

O Laryngeal elevation-participates in early vestibule closure-facilitated by pharyngeal shortening. **indicator of pharyngeal shortening.

O If hyoid movement is not good, laryngeal elevation will collapses too early (geniohyoid, mylohyoid, anterior belly of the digastric).

Oral Swallowing components

O LipsO TeethO Hard palateO Soft palteO UvulaO MandibleO Floor of mouth (submentals)O TongueO Faucial arches

Respiration and swallowing

O There is a pharyngeal role switch for respiration/swallow-presence of specialized neural networks in the brainstem and cortex to facilitate smooth transition.)

O Shared structures for respiratory, vocal tract and aerodigestive systemO Tongue

O Respiration: airway patency, EMG respiratory activityO Swallow: most mobile element-positive pressure generator-airway

protection (BOT helps obliterate airway during TBR)O Pharynx

O Respiration: airway patency (pulmonary disorders-pharynx is large=dead space more resistive to airflow, harder to breath.)

O Swallow: bolus passageway, contractsO Larynx

O Respiration: airflow exhalation-V.C. nearly adduct, inhalation V.C. abduct.

O Swallow: sensation-expectoration, closes, PES opening.

Respiration and swallowing

O Swallowing resets the respiratory pattern.O Most common swallow/breath pattern is

exhale/swallow/exhale/inhale. (exhale after the swallow may be a clearance mechanism).

O Important respiratory mechanical advantages to swallow function: 1.) facilitates superior/anterior hyoid and laryngeal movement 2.) facilitates esophageal clearance.

O Apnea-deep breath, have pt. say huh to ensure glottic closure

O **babies swallow more on inhalation-by 2 the mechanism is more similar to an adult.

CoughO Coughing is a mechanism of airway

clearance that adds to normal ciliary function comprised of three events, inspiratory effort, followed by rapid vocal fold adduction and contraction of the expiratory muscles.

O Expiratory Phase Peak Flow is highly dependent on pulmonary function and not entirely on the participant’s effort of strength.

Neural plasticityO The ability of the brain to change.O May result in behavorial change, not necessarily

vice versa.O Increasing evidence that N.P. Plays a substantial

role in centrally remodeling human function after cerebral injury.

O 10 Principles: Use it or lose it; Use it and improve it; Plasticity is experience specific; Repetition matters; Intensity matters; Time matters; Salience matters; Age matters; Transference; Inference.

Robbins J., Butler S.G., Daniels S.K., Gross R.D., Langmore S., Lazarus C.J., Martin-Harris B., McCabe D., Musson N., Rosenbek J.C. (2008). Swallowing and dysphagia rehabilitation: Translating principles of neural plasticity into clinically oriented evidence. JSLPR; 51: S276-S300.

Disorders of SwallowO Decreased Labial Closure-anterior

spillage of food.O Decreased tongue shaping/coordination-

decreased ability to hold bolus.O Decreased lingual ROM/coordination-

cannot form bolus.O Decreased labial tension/tone-material

falls into anterior sulcus.O Decreased buccal tension/tone-material

falls into lateral sulci.

Disorders of SwallowO Apraxia of swallow-reduced oral sensation-delayed

oral onsetO Apraxia of swallow-searching tongue movement.O Tongue thrust-tongue moves forward to start swallow.O Decreased labial tension-anterior sulcus residue.O Decreased lingual ROM/strength-lingual residue.O Lingual discoordination-disturbed lingual contraction.O Decreased lingual elevation-incomplete tongue-palate

contact.O Decreased lingual elevation/strength-hard palate

residue.O Piecemeal deglutition.

Disorders of SwallowO Delayed pharyngeal swallow-normal during mastication

for bolus to fall to valleculaeO Nasal penetration during the swallow-decreased VP

closureO Unilateral pharyngeal wall weakness-residue on one side

of pharynx and in P.S.O Decreased TBR-valleculae residueO Residue at top of airway-decreased L.E.O Reduced closure of the airway entrance-laryngeal

penetration and aspiration.O Reduced laryngeal closure-aspiration.O Reduced anterior laryngeal motion, CP dysfunction-P.S.

residueO Pharyngeal transit time-less that 1 second.

Disorders of SwallowO Espophageal-Pharyngeal backflowO Tracheoesophageal fistulaO Zenker’s DiverticulumO GERD

ASSESSMENT OF SWALLOWING

O Bedside assessmentO Cervical auscultationO Laryngeal elevation palpationO Monitor s/s aspirationO Trial consistenciesO Pulse oximetryO Heart rateO Blue dye assessmentO 3 ounce water testO Bolus manipulation task

Bedside Assessment of Swallowing

O Exam of Oral Anatomy-lip configuration, hard palate configuration (heigth/width), soft palate and uvular relative to PPW, faucial arches, lingual configuration, adequacy of sulci, scarring, asymmetry, dentition, oral secretions.

O Oral-Motor Exam-Eval range, rate and accuracy of lips, tongue, soft palate and pharyngeal walls.O Open lips, close lips, /i/, /u/, diadochokinetic rate.O Anterior motion of tongue, touch each corner of

mouth, rapidly alternate side, open mouth wide and tongue tip to alveolar ridge then depress tongue tip. Poster tongue-open mouth and lift back of tongue.

Bedside Assessment of Swallowing

O Chewing function-Gauze dipped in liquid.O Soft Palate function-/ah/, gag, palatal reflex.O Laryngeal eval-voice assessment, /ha/-rapid

productions, cough, clear throat, s/z ratioO Cervical auscultation-Listen for sounds of

swallowing and respiration sounds. O Palpation of larynx and hyoid. Palpate for

laryngeal elevation and hyoid anterior movement. (Pointer finger on mandible, middle on hyoid, ring on thyroid, pinky on cricoid notch.)

Assessment of Swallowing

O Instrumental assessmentO MBSS-Most frequently used. Used since early 1900’s, gives us most

info.O FEES-Videoendoscopy-examines anatomy of oral and pharyngeal

cavities, to the level of soft palate or below, no oral, can maybe see velopharyngeal closure, better for kids older than 8 and adults. Good for anatomy, can provide biofeedback

O Manometry-nonimaging, provides biofeedback (effortful swallow, Mendelsohn)

O Ultrasound-observe tongue function, measure oral transit times, motion of hyoid bone. Cannot see pharynx.

O Scintigraphy-nuclear medicine test, patient swallows measured amounts of a radioactive substance, bolus is imaged and recorded by a gamma camera. Aspiration and residue can be measured in amount. Physiology not visualized.

O Electroglottogrphy-EGG-designed to track vocal fold movement by recording the impedance changes as the vocal fold move toward and away from each other during phonation.

MBSSO Two swallows each at 1ml, 3ml, 5ml, 10ml,

cup drink thin, pudding, Lorna Doone cookie.

O Should focus on the lips anteriorly, hard palate posterior pharyngeal wall and bifurcation of the airway and esophagus.

O Trials: (In this order)O Postural TechniquesO Improve Oral Sensory AwarenessO Swallow ManeuversO Diet Changes

MBSSO Postural Techniques

O Head back-inefficient oral transit.O Head down-widen valleculae, push tongue

base back, place epiglottis more posterior, narrow airway.

O Head rotated to damaged side-increase vocal fold closure, narrows layrngeal entrance, twists pharynx, eliminates affected side from bolus path, pulls cricoid cartilage away from PPW.

O Lying down on side-increase vocal fold closure, narrows laryngeal entrance, change gravitational direction of bolus.

MBSSO Oral sensory awareness-

O Increase downward pressure of spoonO Presentation of sour bolus (50%

lemon juice, 50% barium).O Presentation of cold bolusO Presentation of a bolus requiring

chewingO Presentation of a larger volumebolusO Thermal-Tactile Stimulation

MBSSO Swallow Maneuvers

O Supraglottic SwallowO Super-Supraglottic SwallowO Effortful swallowO Mendelsohn Maneuver

MBSSO Food Consistency (Diet) Changes

O Thickened liquidsO PureedO Mechanical soft

ExerciseO Exercising healthy muscles=increased muscle tone.O Must overload or tax the muscle beyond the typical use.

(Masako, Mendelsohn, effortful swallow, Shaker)O Swallowing rehab should imitate swallowing movements. Gains

in strength generalize only to movement very similar to the exercise itself.

O Accurate dosage and frequency unknown at this time for therapeutic levels.

O Continue therapeutic exercise beyond levels needed for minimal functinoal swallow to maintain adequate functional reserve.

O Develop strength training programs that meet the unique needs of patients with various diagnoses and/or swallowing impairments.

O Isometric exercise=sustaining movement in exercise.O Isokinetic exercise=repeated movement in exercise.

Clark, H.M. (2005). Therapeutic exercise in dysphagia management: Philosophies, practices and challenges. Swallowing and Swallowing Disorders, 24-27.

exerciseO MusclesO Sarcopenia-age-related reduction in muscle fibers affecting Type II

muscles more frequently.O Sarcomes=smallest functional unit in muscle contraction.O Contraction achieved when successful binding of proteins (actin and

myosin) along the sarcomere causing the filaments to slide toward each other, creating shortening action of contraction.

O Bundles of sarcomeres form muscle fibers.O Type I muscles: slow twitch, slow-oxidative fibers, fatigue-resistant,

increased endurance (lingual lateralizers, jaw closers and in anterior tongue along with Type IIa).

O Type II muscles: to propel and move bolus, fast twitch, larger, generate more force, easily fatigued. (tongue base, pharyngeal constrictors). No resistance=no need for type II muscles.O Type IIa-fast oxidative/glycolytic.O Type IIb-greatest capacity for force, easily fatigued, uses glycogen.Burkhead, L.M., Sapienza C.M., Rosenbek J.C. (2007). Strength-training exercise in dysphagia rehabilitation: principles, procedures and directions for future research.

Dysphagia; 22: 251-265.

exerciseO Exercise efforts that do not force the neuromuscular system

beond the level of usual activity will not elicit adaptations. O Swallowing is submaximal, meaning it does not generate

maximal force of muscles involved.O Reps: 8-12 most effective, 6-8=greater outcomes for

generating strength.O “If improved swallowing is the goal, then swallowing would

be the optimal training task.”O Transference might explain swallow imprvement with non-

swallow exercise programs (EMST, lingual strengthening, LSVT, Shaker).

O Combine strength and swallow treatments.

Burkhead, L.M., Sapienza C.M., Rosenbek J.C. (2007). Strength-training exercise in dysphagia rehabilitation: principles, procedures and directions for future research. Dysphagia; 22: 251-265.

Treatment outcomes: from Giselle Mann-2005 Florida dysphagia institute

O Lip Pucker-Endurance-Maintenance (I)O Tongue Protrusion and Retraction-Endurance-

Maintenance (I)O Suck/Blow-Endurance-Maintenance (I)O Tongue Bulb-Strengthening (II)O Hard Swallow-Endurance (I)O Mendelsohn-Strength-(II)O Falsetto-Endurance-Maintenance (I)O Pushing-Strength (II)O Supraglottic-Strength (II)O Shaker-Strength (II)

Dysphagia therapyO Therapy helps return swallow function.O High intensity, aggressive therapy, not diet monitoring helps

patients regain swallow function.O Fewer complications arise when the swallowing system is

rehabilitated. (7).O Volitional swallowing involves bilateral neural involvement,

however some areas are hemisphere-specific, 63% showing left dominance. (12) **Swallowing is not a true reflex.

O Stroke patients pharyngeal representation in undamaged hemispere increased significantly with recovered swallow function. No changes were seen in the damaged hemisphere. Recovery of swallowing depends on compensatory reorganization. (13)

O Cortical input involves actions such as holding a bolus in the mouth and then swallowing on command.

Dysphagia therapyO Weakness=decreased ability to use force.O Fatigue=weakness that becomes evident

during sustained force productions and over repeated trials.

O Tone=tendency of muscle tissue to resist passive stretch.

O Oral/tactile agnosia-does not realize food is in the mouth.

O Watch for right lower lobe pneumonias.O Drop of 4 on pulse ox can indicate

dysphagia/aspiration.

IntraOral ProstheticsO Palatal Lift ProsthesisO Palatal ObturatorO Palatal Augmentation-Reshaping

Prosthesis

TreatmentO Indirect-without use of food or liquidsO Direct-utilizing foods/liquidsO Therapy should be separate from

meals.O “Patients who receive therapy

months or years after onset of their problem are still capable of achieving oral intake.” Logemann book

treatmentO DPNS (Deep Pharyngeal Neuromuscular

Stimulation)O Thermal Tactile StimulationO EMST (Expiratory Muscle Strength Training)O LSVT (Lee Silverman Voice Treatment)O MDTP (McNeill Dysphagia Therapy Program)O sEMG (Surface Electromyography)O Isometric Lingual ExerisesO Effortful SwallowO Viscous bolus

InterventionsO Exercises

O Mendelsohn ManueverO MasakoO ShakerO Oral manipulation exercisesO Effortful swallowO Cheek/lingual with resistanceO ChewingO Weighted bolusO Swallow trialsO Suck-swallowO IOPIO MOST (Madison Oral Strength Trainer)

Mendelsohn manueverO Endurance/resistance. Can use a bolus.O Increases extent and duration of PES opening. (2)O Increases tongue-base/pharyngeal wall pressure and contact duration. (2)O Found to: increase peak pharyngeal pressure, PES contraction pressure,

PES opening duration, duration of hyoid-PES separation, duration of laryngeal elevation, bolus transit time, hyoid excursion, distance from the hyoid bone and the thyroid cartilage, duration of contraction for various muscles. (4)

O May facilitate clearance of residue.O Research: 20 normal subjects, 1 group given 5ml water swallows

compared to 5 ml swallows with Mendelsohn manuever. Able to sustain laryngeal elevation for 1.5 seconds or greater with increase in submental muscle group (anterior belly of the digastric, mylohyoid and geniohyoid.) (23)

O “Put your hand on your throat and feel when you swallow. You can feel your Adam’s apple move up. Now, when you swalow I want you to hold your Adam’s Apple up for a few seconds, squeezing your throat and neck muscles and not letting go.” (25)

MasakoO Resistance. Boluses not recommended.O Increases anterior motion of the posterior

pharyngeal wall at the level of the tongue base. (2)

O Increases strength of tongue base and pharygeal constriction, increases efferent drive of tongue base.

O Increased pharyngeal clearance.O Logemann recommends resistance

exercises to target weak structures, 10 reps, 10x/day.

ShakerO Resistance/Endurance.O Increased laryngeal anterior excursion and

cross-sectional opening of PES, improved swallow function, decreased post swallow aspiration and ability to return to various levels of oral intake. (2)

O Increased strength through HLE and PES opening, increased efferent drive of HLE and PES opening.

O Targets anterior belly of the digastric, mylohyoid, geniohyoid (hyoid elevation muscles).

Oral manipulation exercises

O Resistance/Coordination.O Cheese clothO ToothetteO Gauze

Effortful swallowO Resistance/Endurance.O Increased: base of tongue retraction, tongue propulsive force,

oral pressure, duration and extent of hyoid movement and laryngeal vestibule closure, longer duration of pharyngeal pressure and PES relaxation. (2)

O Original goal to maximize posterior BOT motion resulting in improved bolus clearance from valleculae.

O Increased force-generating ability of swallowing muscles. (4)O Increased strength for TB, HLE, PC and PES opening, increased

coordination for HLE, PC, PES opening, Increased afferent (sensory) drive for TB, HLE, PC, PES opening, increased efferent (motor) drive for TB, HLE, PC, PES.

O Evidence of early elevation of the hyoid at initiation of effortful swallow. (20)

O “As you swallow, squeeze hard with all of your throat and neck muscles.” (25)

Lingual exercises with resistance

O Research: Progressive resistance training-8 week training, 3 sets, 10 reps 3x/day using IOPI, pressing bulb against palate using tip, blade and dorsum. Lingual strength increased as a result of non-swallowing strengthening exercises. Non-swallow strengthening exercises improved swallow with liquid bolus. Penetration/Aspiration Scores were reduced. (2, 10)

O Research: tested strength and endurance-3 groups, 1 with no exercise, 1 with tongue depressors and 1 with IOPI. Exercises completed 5 days/week for 1 month, 10 reps 5x/day. Movement 4 directions (with T.D. and IOPI), left, right, protrusion and elevation. Greater change in both exercise groups. IOPI did not differ therapy. No change in endurance. Increased change in those with initial lower baselines. (9)

Lingual exercises with resistance

O BOT=base, between tip of uvula and valleculae.O Pull tongue straight back.O Yawn and hold most retracted.O Gargle and hold at most retracted (most BOT movement).

O Increased strength with resistance, IOPI, oral manipulation, swallow trials. Increased ROM with MFR, stretch (Beckman), oral manipulation, swallow trials. Increased coordination with oral manipulation, sensory stim (Beckman, DPNS), suck-swallow, resistance, swallow trials. Increased afferent drive with chewing (cold/sour bolus), swallow trials, CN V, VII, XII. Increased efferent drive with resistance, textured/chewy bolus, weighted bolus with straw, swallow trials.

ChewingO TextureO ViscosityO Cold-**For pulmonary patients, cold

may not stimulate as well as warm.O Sour

Weighted bolusO Add viscosityO Thickened liquids/pudding through

straw

Swallow trialsO Challenging boluses-find a safe,

challenging consistency to increase strength.

Iowa oral performance instrument

O IOPI uses a bulb and a hand-held device to measure tongue strength.

O Can be used as a therapeutic tool for visual feedback.

O Available at www.iopi.info

http://www.iopi.info/

StretchesO Myofascial releaseO Beckman program

ModalitiesO Biofeedback (sEMG)O NMES (VitalStim, Eswallow)O Thermal Tactile Stimulation (TTS)O Pressure Biofeedback (IOPI)

Neuromuscular electrical stimulation

O NMES-training and equipment through VitalStim (FDA approved) or Eswallow.

O Research: significant descent of the hyoid and larynx at rest during maximal electrical stimulation. Aspiration and pooling during swallowing were only reduced during low sensory thresholds of stimulation. Also greater hyoid depression during stimulation at rest. (23).

Thermal tactile stimulation

O “00” laryngeal mirror.O Stimulate faucial arches 4-5x then

assess speed of swallow. O Repeat when swallow slows. O Best dosage is 5x/day.O Pipe 1cc into floor of mouth for

swallow following stim

Sensory stimulationO Sour bolus ½ lemon juice, ½ barium or water.

Helps to decrease time to initiate oral onset of the swallow and reduce oral transit time. “Quicker” swallow onset, more synchronous activation of submental muscles, making the muscle contraction stronger. (17/18)

O Carbonated bolus.O Massage-improves circulation of blood and

lymph system, increases oxygenation of tissues, facilitates waste removal, relieves pain (does not increase strength or prevent atrophy or hypotonia.) (8)

EMSTO Exhale into a device with 1-way, spring-loaded pressure

valve, with valve at 60-80% of max expiratory pressure.O Afferent stimulation to brain stem swallow centers

through peripheral sensory receptors in tongue and oropharynx and strengthening oropharyngeal, laryngeal and supralaryngeal muscles.

O Improves ability to cough. (6)O Hyoid vertical elevation and velopharyngeal closure

during active blowing into the device. (24)O Increased activation of the submental muscles (anterior

belly of the digastric, mylohyoid and geniohyoid-responsible for hyoid movement), similar to swallowing counterparts. (24)

O “Expiratory Pressure Threshold Trainer” (24)

Maneuvers/posturesO MendelsohnO Chin TuckO Head TurnO SupraglotticO Super SupraglotticO Head backO Side lying

O Postures effective 75-80% of the time.

Chin tuckO Research comparing chin tuck with thin liquids to NTL and HTL.

Estimated $200/month for people on thickened liquids. More aspiration with chin tuck than with NTL or HTL. More adverse affects with thickened liquids (dehydration, UTI, fever). (3)

O Narrows the airway, varies pressures in pharynx and UES during swallow, duration of timing of swallowing events and displacement of anatomical structures during the swallow.

O Significant change in pharyngeal contraction pressure, duration of pharyngeal contraction pressure, larynx to hyoid bone distance, hyoid to mandible distance before the swallow, *angle between mandible to posterior pharyngeal wall, *angle between epiglottis to PPW of trachea, *width of airway entrance, *distance from epiglottis to PPW. (*all decreased). (4)

O Chin tuck effective in 72% of patients studied. May be contraindicated in those with weak pharyngeal contraction pressure as it decreased pharyngeal contraction pressure and duration. (10/11)

Head turnO Head rotated to weaker side-Increased pharyngeal contraction

pressure at the level of the valleculae and pyriform sinus on side of rotation, decreased UES resting pressure on side opposite rotation, increased duration from peak pharyngeal pressure in the pyriform sinus to the end of UES relaxation and increased UES anterior/posterior opening diameter.

O Redirected bolus flow through the pyriform sinus on the strong side.

O Concurrent decrease in UES resistance to bolus flow and prolongation of UES opening allowing bolus material to flow in a less obstructed manner through the UES and providing more time to clear all bolus material from the pharynx. (4)

o Closes weaker side, applies pressure to larynx with closer approximation of vocal chords to weak side, gravity holds food longer to stronger side for unilateral oral and/or pharyngeal dysphagia. If only pharyngeal dysphagia use head turn to weak side.

Super supraglottic swallow

O Facilitates timing and extent of laryngeal closure at specific levels of the larynx. (2)

O For dysphagia secondary to reduced closure of the airway entrance. Increased UES relaxation prssure and duration of hyoid excursion and laryngeal movement, decreased time between UES opening and onset of hyoid movement and BOT movement time between UES opening and the onset of vocal fold adduction and laryngeal closure. (4)

O It is indicated that the airway protective sequence happens early in the swallow.

O 13/15 subjects with CVA showed abnormal cardiac findings. (21)

Supraglottic SwallowO For dysphagia accompanied by reduced or late

vocal cord closure or delayed pharyngeal swallow.O Changes timing of UES opening, duration and

timing of hyoid excursion and laryngeal closure, timing of BOT movement.

O Close vocal cords earlier in swallow, prolongs hyolaryngeal excursion-before and during swallow vocal fold closure.

O Logemann recommends 10x/day x5 min with 5-6 swallows each time. (4)

O 13/15 subjects with CVA showed abnormal cardiac findings. (21)

Head back (chin up)O Gravity assistance.O Helps lingual deficits.O Not for use with delayed pharyngeal

swallow or poor airway closure.

Side lyingO Alters gravity for residue.O May help clear residue after the swallow

(pharyngeal).O Before sit upright-cough to clear final residue. O Will hold residual bolus material to the

pharyngeal wall instead of allowing it to drop into the airway. When pharyngeal contraction is reduced such that residue is observed throughout the pharynx. (4)

O When bilateral reduction in pharyngeal wall contraction reduced laryngeal elevation with pharyngeal residue aspirated after the swallow.

FRAZIER WATER PROTOCOL

O Patients who are on thickened liquids are often placed on a Frazier Water Protocol to increase hydration.O Thickened liquids are given with

meals and medications.O Wait for 30 minutes after meal,

complete thorough oral care, then patient can have all the sterile water they want until the next meal.

PEG tube and functional dysphagia therapy (FDT)

O Looked at 2 groups, 1 with PEG and 1 without.O Non-PEG group had significant post tx

improvement in functional oral intake.O Severe dysphagia with PEG showed significant

improvement, still required some PEG feedings.O More complications and increased mortality in

PEG group.O All patients benefited from FDT.

Becker R., Neiczaj R., Egge K., Moll A., Meinhardt M., Schulz RJ. (2010). Functional dysphagia therapy and PEG treatment in A clinical geriatric setting. Dysphagia, Jan 26.

Predictors of aspiration: langmore, et al study (1998)

O Aspiration pneumonia is a 3 phase process: O Colonizes pathogenic bacteria in the oropharynxO Aspirates the bacteria into the airwayO Unable to clear the material and then develops a

bacterial infection in the respiratory systemO Risk factor for aspiration include:

O Dependence on others for feedingO Multiple medical conditionsO SmokingO Tube feedingO Dependence for oral careO Number of decayed teethO Number of medicationsLangmore S, Terpenning M., Schork A., Chen Y., Murray J., Lopatin D., Loesche W. Predictors of aspiration pneumonia: How important is

dysphagia? Dysphagia 1998; 13: 69-81

Symptoms/indications from swallow assessment

O Pharyngeal residue is an indication of decreased TBR.

O Residue=decreased muscle function/decreased pressure.

O Premature spillage indicates decreased force and pressure.

O Epiglottic movement is an indicator for HLE.O Pocketing=decreased buccal/lingual muscles.O Decreased pressure=decreased muscle

function.O No laryngeal movement can indicate decreased

pharyngeal contraction.

Outcome Measures for Dysphagia

O Duke University Rating of Radiologic Swallowing Abnormalities - This is a great rating scale during the MBSS.

O DOSS-Dysphagia Outcome Severity Scale (Dysphagia 14:139-145 1999) O EAT-10- http://www.ncbi.nlm.nih.gov/pubmed/19140539

O Functional Independence Measure/Functinoal Assessment Measure- (www.udsmr.com) (http://tbims.org/combi/FAM/

O FOIS-Functional Oral Intake Scale - (http://srl.phhp.ufl.edu/publications/FOIS.pdf

O Mann Assessment of Swallowing Ability-MASA

O M.D. Anderson Dysphagia Inventory-MDADI0 (http://archotol.ama-assn.org/cgi/content/abstract/127/7/870)

O NOMS - http://www.asha.org/members/research/NOMS/health.htm

O Penetration/Aspiration Scale - (http://www.springerlink.com/content/k166H1653481Ou6)

O SWAL-QOL and SWAL-CARE ([email protected])

http://www.facebook.com/home.php?sk=group_102453736503465&view=doc&id=127330787349093

http://www.ncbi.nlm.nih.gov/pubmed/19140539

http://www.facebook.com/www.udsmr.com

http://tbims.org/combi/FAM/

http://srl.phhp.ufl.edu/publications/FOIS.pdf

http://archotol.ama-assn.org/cgi/content/abstract/127/7/870

http://www.asha.org/members/research/NOMS/health.htm

http://www.springerlink.com/content/k166H1653481Ou6

References1 Clark, H.M. (2005). Therapeutic exercise in dysphagia management: Philosophies,

practices and challenges. Perspectives in Swallowing and Swallowing Disorders, 24-27.2 Robbins, J.A., Butler, S.G., Daniels S.K., Diez Gross, R., Langmore, S., Lazarus, C.L., et al.

(2008). Swallowing and dysphagia rehabilitation: Translating principles of neural plasticity into clinically oriented evidence. Journal of Speech, Language, and Hearing Research, 51, S276-300.

3 Robbins, J.A., & Hind, J. (2008). Overview of results from the largest clinical trial for dysphagia treatment efficacy. Perspectives on Swallowing and Swallowing Disorders (Dysphagia), 17, 59-66.

4 Frymark T, Schooling T., Mullen R., Wheeler-Hegland K., Ashford J., McCabe D., Musson N., Hammond C.S. (2009). Evidence-based systematic review: Oropharyngeal dysphagia behavioral treatments. Parts I-V. JRRD, 46, 175-222.

5 Becker R., Nieczaj R., Egge K., Moll A., Meinhardt M., Schulz R.J. (2010). Functional dysphagia therapy and PEG treatment in a clinical geriatric setting. Dysphagia, DOI: 10.1007/s00455-009-9270-8.

6 Burkhead L.M., Sapienza C.M., Rosenbek J.C. (2007). Strength-training exercise in dysphagia rehabilitation: Principles, procedures and directions for future research. Dysphagia; 22: 251-265.

7 Carnaby G., Hankey G.J., Pizzi J. (2006). Behavioral intervention for dysphagia in acute stroke: A randomized control trial. Lancet Neurology; 5: 31-37.

8 Clark, H.M. (2003). Neuromuscular treatments for speech and swallowing: A tutorial. American Journal of Speech-Language Pathology, 12, 400-415.

References9 Lazarus, C. Logemann, J.A., Huang, C.F., and Rademaker, A.W. (2003). Effects of

two types of tongue strengthening exercises in young normals. Folia Phoniatrica et Logopaedica, 55, 199-205.

10 Robbins, J.A., Gangnon, R.E., Theis, S.M., Kays, S.A., Hewitt, A.L., & Hind, J.A. (2005). The effects of lingual exercise on swallowing in older adults. Journal of the American Geriatric Society, 53, 1483-1489.

11 Shaker, R. et al. (2002). Rehabilitation of swallowing by exercise in tube-fed patients with pharyngeal dysphagia secondary to abnormal UES opening. Gastroenterology, 122, 1314-1321.

12 Hamdy, S. (2006). Role of cerebral cortex in the control of swallowing. GI Motility online.doi:10.1038/gimo8.

13 Hamdy, S., Aziz, Q., Rothwell, J.C., Power, M., Singh, K., Nicholson, D., et al. (1998). Recovery of swallowing after dysphagic stroke relates to functional reorganization in the intact motor cortex. Gastroenterology, 115, 1104–1112.

14 Logemann, J.A. (1998). The need for clinical trials in dysphagia. Dysphagia, 13, 10-11.

15 Robbins, J.A. (2003, March). Oral strengthening and swallowing outcomes. Perspectives on Swallowing and Swallowing Disorders, 12, 16-19.

16 Steele, C.M. & Van Lieshout, P.H.H.M. (2004). Influence of bolus consistency on lingual behaviors in sequential swallowing. Dysphagia, 19, 192-206.

references17 Logemann, J.A., Pauloski, B.R., Colangelo, L., Lazarus, C., Fujiu, M., & Kahrilas, P.J. (1995). Effects

of a sour bolus on oropharyngeal swallowing measures with neurogenic dysphagia. Journal of Speech and Hearing Research, 38, 556-563.

18 Palmer, P.M., McCulloch, T.M., Jaffe, D., & Neel, A.T. (2005). Effects of a sour bolus on the intramuscular electromyographic (EMG) activity of muscles in the submental region. Dysphagia, 20, 210-217.

19 Oh, B.M., Kim, D.Y., & Paik, N.J. (2007). Recovery of swallowing function is accompanied by the expansion of the cortical map. International Journal of Neuroscience, 117, 1215-1227.

20 Bulow, M., Olsson, R. & Ekberg, O. (1999). Videomanometric analysis of suprglottic swallow, effortful swallow, and chin tuck in healthy volunteers. Dysphagia, 14, 67-72.

21 Chaudhuri, G., Brady, S., Binnett, A., & Zanotti, E. (2005). Cardiovascular effects of the Shaker exercise in healthy adults. [Online] Available: http://www.marianjoy.org/stellent/groups/public/documents/www/mj_079551.hcsp

22 Ding, R., Larson, C.R., Logemann, J.A., & Rademaker, A.W. (2002). Surface electromyographic and electroglottographic studies in normal subjects under two swallow conditions: Normal and during the Mendelsohn maneuver. Dysphagia, 17, 1-12.

23 Ludlow, C.L. , Humbert, I., Saxon, K., Poletto, C., Sonies, B., & Crujido, L. (2007). Effects of surface electrical stimulation both at rest and during swallowing in chronic pharyngeal dysphagia. Dysphagia, 22, 1-10.

24 Wheeler-Hegland, K.M., Rosenbek, J.C., Sapienza, C.M. (2008). Submental sEMG and Hyoid Movment During Mendelsohn Maneuver, Effortful Swallow, and Expiratory Muscle Strength Training. Journal of Speech, Language and Hearing Research, 51, 1072-1087.

25 Logemann, J.A. (1999). Behavioral management for oropharyngeal dysphagia. Folia Phoniatrica et Logopeadica, 51(4-5), 199-212.

http://www.marianjoy.org/stellent/groups/public/documents/www/mj_079551.hcsp

referencesLogemann, J.A. (1998). Evaluation and

treatment of swallowing disorders (2nd ed). Austin, TX: Pro-Ed.

Wijting Y., Freed M. (2009). Training Manual for the use of Neuromuscular Electrical Stimulation in the treatment of Dysphagia. www.ciaoseminars.com

Stefanakos K.H. (2002). Comprehensive DPNS: A Dysphagia Workshop on Deep Pharyngeal Neuromuscular Stimulation. The Speech Team Inc.

http://www.ciaoseminars.com/

Evidence Base for dysphagia

O Postural Changes O Rasley, A., Logemann, J.A., Kahrilas, P.J., Rademaker, A.W., Pauloski, B.R. & Dodd s, W.J. (1993). Prevention of barium aspiration during

videofluoroscopic swallowing studies: value of change in posture. American Journal of Roentgenology, 160, 1005-1009.

O Logemann, J.A., Rademaker, A.W., Pauloski, B.R., Kahrilas, P.J. (1994). Effects of postural change on aspiration in head and neck surgical patients. Otolaryngology Head and Neck Surgery, 4, 222-227

O Lewin JS, Herbert TM, Putnam JB, DuBrow RA. (2001) Experience with the chin tuck maneuver in postesophagectomy aspirators. Dysphagia 16:216-219

O Campion MB, Jones B, Gayler BW, Yang SC. (2006) The esophagectomy patient: Early intervention by speech pathology improves outcome. presented at the Annual DRS Meeting, Scottsdale, AZ

O Bülow M, Olsson R, Ekberg O. Videomanometric analysis of supraglottic swallow, effortful swallow, and chin tuck in healthy volunteers. Dysphagia. 1999;14(2):67–72. [PMID: 10028035] DOI:10.1007/PL00009589

O Castell JA, Castell DP, Schultz AR, Georgeson S. Effect of head position on the dynamics of the upper esophageal sphincter and pharynx. Dysphagia. 1993;8(1):1–6. [PMID: 8436016] DOI:10.1007/BF01351470

O Welch MV, Logemann JA, Rademaker AW, Kahrilas PJ. Changes in pharyngeal dimensions affected by chin tuck. Arch Phys Med

Rehabil. 1993;74(2):178–81. [PMID: 8431103]

O Logemann JA. The role of the speech language pathologist in the management of dysphagia. Otolaryngol Clin North Am. 1988;21(4):783–88. [PMID: 3054726]

O Cohen J. Statistical power analysis for the behavioral sciences. 2nd ed. Hillsdale (NJ): Erlbaum; 1998. p. 594.

O Logemann JA, Kahrilas PJ, Kobara M, Vakil NB. The benefit of head rotation on pharyngoesophageal dysphagia. Arch Phys Med Rehabil. 1989;70(10):767–71. [PMID: 2802957]

O Ohmae Y, Ogura M, Kitahara S, Karaho T, Inouye T. Effects of head rotation on pharyngeal function during normal swallow. Ann Otol

Rhinol Laryngol. 1998;107(4):344–48. [PMID: 9557771]


O Range of Motion O Logemann, J.A., Pauloski, B.R.,

Rademaker, A.W., Colangelo, L.A. (1997). Speech and swallowing rehabilitation for head and neck cancer patients. Oncology, 5, 651-659


O StrengtheningO Sullivan P, Hind JA, Roecker EB, Carnes M, Doyle J, Dengel GA, Robbins J. (2001). Lingual exercise

protocol for head and neck cancer: A case study. Dysphagia,16, 154O Lazarus, C.L., Logemann, J.A., Huang, C.H., Rademaker, A.W.(2003) Effects of two types of tongue

strengthening exercises in young normals. Folio Phoniatrica, 55:199-205O Robbins J, Gangnon R, Theis S, Kays SA, & Hind J (2005). The effects of lingual exercise on

swallowing in older adults. Journal of the American Geriatrics Society, 53, 1483-1489O Kays S, Hind J, Hewitt A, Gangon R, Robbins J (2004). Effects of lingual exercise onO swallowing-related outcomes after stroke. Poster presented at the American-Speech-Language-

Hearing Association annual meeting, Philadelphia, PAO Shaker R, Kern M, Bardan E, Taylor A, Stewart ET, Hoffmann RG, Arndorfer RC, Hofmann C, Bonevier

J. Augmentation of deglutitive upper esophageal sphincter opening in the elderly by exercise. Am J Physiol 1997;272(Gastrointest Liver Physiol 35):G1518-G1522

O Shaker R, Easterling C, Kern M, Nitschke T, Massey B, Daniels S, Grande B, Kazandjian M, Dikeman K. (2002). Rehabilitation of swallowing by exercise in tube-fed patients with pharyngeal dysphagia secondary to abnormal UES opening. Gastroenterology 122:1314-1321

O Palmer PM, Wohlert AB, Easley E. (2004). Oral function and quality of life after LSVT. Poster presented at the American Speech-Language-Hearing Association Annual meeting, Philadelphia, PA.

O Sharkawi AE, Ramig L, Logemann JA, Pauloski BR, Rademaker AW, Smith CH, Pawlas A, Baum S, and Werner C. (2002). Swallowing and voice effects of Lee Silverman Voice Treatment (LSVT): A pilot study. Journal of Neurology, Neurosurgery and Psychiatry, 72(1):31-36


O EMST

O Sapienza C (2005) Effects of respiratory strength training on swallowing in Parkinson’s patients.Presented at the Charleston Swallowing Conference, Charleston SC

Evidence Base for dysphagiaO Maneuvers

O Martin BJW, Schleicher MA, O’Connor A. (1993). Management of dysphagia following supraglottic laryngectomy. Clin Comm

Disord 3:27-36

O Prosiegel M, Heintze M, Sonntag EW, Schenk T, Yassouridis A. Kinematic analysis of laryngeal movements in patients with neurogenic dysphagia before and after swallowing rehabilitation. Dysphagia 2000;15:173-179

O Logemann, Pauloskie, Rademaker, Colangelo (1997). Super-supraglottic swallow in irradiated head and neck cancer patients,. Head & Neck, 19:535-540

O Lazarus (1993). Effects of radiation therapy and voluntary maneuvers on swallow functioning in head and neck cancer patients. Clin Comm Dis, 3:11-20.

O Lazarus, Logemann, Song, Rademaker, Kahrilas. (2002). Effects of voluntary maneuvers on tongue base function for swallowing. Folia Phoniatr Logop, 54:171-176

O Hind JA, Nicosia MA, Roecker EB, Carnes ML, Robbins J. (2001). Comparison of effortful and noneffortful swallows in healthy middle-aged and older adults. Archives of Physical Medicine and Rehabilitation 82:1661-1665.

O Pouderoux P & Kahrilas PJ. (1995). Deglutitive tongue force modulation by volition, volume and viscosity in humans. Gastroenterology, 108, 1418-1426.

Bodén K, Hallgren A, Witt Hedström H. Effects of three different swallow maneuvers analyzed by videomanometry. Acta Radiol. 2006;47(7):628–33. [PMID: 16950694] DOI:10.1080/02841850600774043

O Ding R, Larson CR, Logemann JA, Rademaker AW. Surface electromyographic and electroglottographic studies in normal subjects under two swallow conditions: Normal and during the Mendelsohn maneuver. Dysphagia. 2002;17(1):1–12. [PMID: 11820381]

O Kahrilas PJ, Logemann JA, Krugler C, Flanagan E. Volitional augmentation of upper esophageal sphincter opening during swallowing.

Am J Physiol. 1991;260(3 Pt 1):G450–56. [PMID: 2003609]

O Logemann JA. The role of the speech language pathologist in the management of dysphagia. Otolaryngol Clin North Am.

1988;21(4):783–88. [PMID: 3054726]


O Cohen J. Statistical power analysis for the behavioral sciences. 2nd ed. Hillsdale (NJ): Erlbaum; 998. p. 594. O Bülow M, Olsson R, Ekberg O. Videomanometric analysis of supraglottic swallow, effortful swallow, and chin tuck in healthy volunteers.

Dysphagia. 1999;14(2):67–72. [PMID: 10028035] DOI:10.1007/PL00009589

O Hind JA, Nicosia MA, Roecker EB, Carnes ML, Robbins J. Comparison of effortful and noneffortful swallows in healthy middle-aged and older adults. Arch Phys Med Rehabil. 2001;82(12):1661–65. [PMID: 11733879] DOI:10.1053/apmr.2001.28006

O O Hiss SG, Huckabee ML. Timing of pharyngeal and upper esophageal sphincter pressures as a function of normal and effortful

swallowing in young healthy adults. Dysphagia. 2005;20(2):149–56. [PMID: 16172825] DOI:10.1007/s00455-005-0008-y

O Huckabee ML, Butler SG, Barclay M, Jit S. Submental surface electromyographic measurement and pharyngeal pressures during normal and effortful swallowing. Arch Phys Med Rehabil. 2005;86(11):2144–49. [PMID: 16271562] DOI:10.1016/j.apmr.2005.05.005

O Huckabee ML, Steele CM. An analysis of lingual contribution to submental surface electromyographic measures and pharyngeal pressure during effortful swallow. Arch Phys Med Rehabil. 2006;87(8):1067–72. [PMID: 16876551] DOI:10.1016/j.apmr.2006.04.019

O Lever TE, Cox KT, Holbert D, Shahrier M, Hough M, Kelley-Salamon K. The effect of an effortful swallow on the normal esophagus. Dysphagia. 2007;22(4):312–25. [PMID: 17694407] DOI:10.1007/s00455-007-9107-2

O Pouderoux P, Kahrilas PJ. Deglutitive tongue force modulation by volition, volume, and viscosity in humans. Gastroenterology. 1995;108(5):1418–26. [PMID: 7729634] DOI:10.1016/0016-5085(95)90690-8

O Steele CM. Huckabee ML.The influence of orolingual pressure on the timing of pharyngeal pressure events. Dysphagia. 2007;22(1):30–36. [PMID: 17024546] DOI:10.1007/s00455-006-9037-4

O Ohmae Y, Logemann JA, Kaiser P, Hanson DG, Kahrilas PJ. Effects of two breath-holding maneuvers on Oropharyngeal swallow. Ann Otol Rhinol Laryngol. 1996;105(2):123–31. [PMID: 8659933]

O Van Daele DJ, McCulloch TM, Palmer PM, Langmore SE. Timing of glottic closure during swallowing: A combined electromyographic and endoscopic analysis. Ann Otol Rhinol Laryngol. 2005;114(6):478–87. [PMID: 16042106]

Evidence based dysphagia

O Thermal Tactile Stimulation

O Rosenbek J, Roecker E, Wood J, & Robbins J (1996). Thermal application reduces the duration of stage transition in dysphagia after stroke. Dysphagia, 11, 225-233

O Rosenbek J, Williford W, Schiltz A, Robbins J, Sowell T, Deutsch S et al. (1998). Comparing treatment intensities of tactile thermal application. Dysphagia, 13, 1-9


O NMES O Ludlow C (2006). Effects of electrical stimulation on swallowing. Presented at the Annual Dysphagia Research

Society meeting, Scottsdale, AZ.O Power M, Fraser C, Hobson A, Rothwell JC, Mistry S, Nicholson DA et al. (2004). Changes in pharyngeal

corticobulbar excitability and swallowing behavior after oral stimulation. American Journal of Physiology-Gastrointestinal and Liver Physiology, 286, G45-G50.

O FDA. VitalStim 510(k) clearance document K023347; 2002.O Freed ML. Clinical trial data in support of VitalStim 510(k) clearance application with FDA; 2001.O Christiaanse M, Glynn J, Bradshaw J. Experience with transcutaneous electrical stimulation: A new treatment

option for the management of pediatric dysphagia. NCSHA. Charleston; 2003.O Carnaby-Mann GD, Crary MA. Examining the evidence on neuromuscular electrical stimulation for swallowing:

a meta-analysis. Arch Otolaryngol Head Neck Surg. Jun 2007;133(6):564-571.O Bulow M, Speyer R, Baijens L, Woisard V, Ekberg O. Neuromuscular Electrical Stimulation (NMES) in Stroke

Patients with Oral and Pharyngeal Dysfunction. Dysphagia. Sep 2008;23(3):302-309. O Permsirivanich W, Tipchatyotin S, Wongchai M, et al. Comparing the effects of rehabilitation swallowing

therapy vs. neuromuscular electrical stimulation therapy among stroke patients with persistent pharyngeal dysphagia: a randomized controlled study. J Med Assoc Thai. Feb 2009;92(2):259-265.

O Crary MA, Carnaby-Mann GD, Faunce A. Electrical stimulation therapy for dysphagia: descriptive results of two surveys. Dysphagia. Jul 2007;22(3):165-173. 8. Bauer W. Electrical treatment of severe head and neck cancer pain. Arch Otolaryngol. Jun 1983;109(6):382-383.

O Boswell N. Neuroelectric therapy eliminates xerostomia during radiotherapy-a case history. Med Electron. 1989(115):105-107.


O Boswell N, Bauer W. Noninvasive electrical stimulation for the treatment of radiotherapy side effects. American Journal of Electromedicine. 1985;2(3). 11. McDuffie C, Morgan M,

O Armstrong C, Nathan C. Electrical stimulation of post irradiated head and neck SCCA. AAO-HNS. Los Angeles; 2005.

O Langmore S, VanDaele D, Logemann J, et al. Electrical stimulation for dysphagia in head and neck cancer patients. A case series. DRS; 2006. 13. Pattani KM, McDuffie CM, Morgan M,

O Armstrong C, Nathan CA. Electrical stimulation of post-irradiated head and neck squamous cell carcinoma to improve xerostomia. J La State Med Soc. Jan-Feb;162(1):21-25.

O Peng G, Masood R, Sinha U. Radiation induces TGF-β and blocks MyoD causing fibrosis. Paper presented at: Otolaryngology-Head and Neck Surgery; August, 2008; Chicago, IL.

O Lin P-H, Hsiao T-Y, Chang Y-C, et al. Effects of functional electrical stimulation on dysphagia caused by radiation therapy in patients with nasopharyngeal carcinoma. Support Care Cancer. Published online 29 November 2009.

O Freed ML, Freed L, Chatburn RL, Christian M. Electrical stimulation for swallowing disorders caused by

stroke. Respir Care. May 2001;46(5):466-474. 17. Leelamanit V, Limsakul C,O Geater A. Synchronized electrical stimulation in treating pharyngeal dysphagia. Laryngoscope. Dec

2002;112(12):2204-2210.

O Chaudhuri G, Brady S, Caldwell R. Electric Stimulation for Dysphagia Following Stroke: Pilot Data. Paper presented at: AAPM&R, 2006; Los Angeles. NMES in the treatment of dysphagia. Review of the evidence. Page 25 of 26 Last updated: 9/28/2010


O Carnaby-Mann GD, Crary MA. Adjunctive neuromuscular electrical stimulation for treatment-refractory dysphagia. Ann Otol Rhinol Laryngol. Apr 2008;117(4):279-287.

O Ludlow CL, Humbert I, Saxon K, Poletto C, Sonies B, Crujido L. Effects of surface electrical stimulation both at rest and during swallowing in chronic pharyngeal Dysphagia. Dysphagia. Jan 2007;22(1):1-10.

O Shaw GY, Sechtem PR, Searl J, Keller K, Rawi TA, Dowdy E. Transcutaneous neuromuscular electrical stimulation

(VitalStim) curative therapy for severe dysphagia: myth or reality? Ann Otol Rhinol Laryngol. Jan 2007;116(1):36-44.

O Oh BM, Kim DY, Paik NJ. Recovery of swallowing function is accompanied by the expansion of the cortical map. Int J Neurosci. Sep 2007;117(9):1215-1227.

O Baijens LW, Speyer R, Roodenburg N, Manni JJ. The effects of neuromuscular electrical stimulation for dysphagia in opercular syndrome: a case study. Eur Arch Otorhinolaryngol. Jan 8 2008.

O Lagorio LA, Carnaby-Mann GD, Crary MA. Cross-system effects of dysphagia treatment on dysphonia: a case report. Cases J. Jul 30 2008;1(1):67.

O Bogaardt H, van Dam D, Wever NM, Bruggeman CE, Koops J, Fokkens WJ. Use of neuromuscular electrostimulation in the treatment of dysphagia in patients with multiple sclerosis. Ann Otol Rhinol Laryngol. Apr 2009;118(4):241-246.

O Ptok M, Strack D. Electrical stimulation-supported voice exercises are superior to voice exercise therapy alone in patients with unilateral recurrent laryngeal nerve paresis: results from a prospective, randomized clinical trial. Muscle Nerve. Aug 2008;38(2):1005-1011.

O CMS. Medicare program; Revised process for making medicare national coverage determinations. Vol 68: Federal Register; 2003:55634-55641.

O Doeltgen S, Huckabee M, Dalrymple-Alford J, Ridding M, O'Beirne G. Effect of event-related electrical stimulation on

motor evoked potentials at the submental muscle group. DRS. Charleston, SC; 2008.


O Belafsky P, Speirs J, Hiss S, Postma G. The safety and efficacy of transcutaneous electrical stimulation in treating dysphagia: Preliminary experience. NCSHA. Charleston; 2004.

O Blumenfeld L, Hahn Y, Lepage A, Leonard R, Belafsky PC. Transcutaneous electrical stimulation versus traditional dysphagia therapy: a nonconcurrent cohort study. Otolaryngol Head Neck Surg. Nov 2006;135(5):754-757.

O Cheung SM, Chen CJ, Hsin YJ, Tsai YT, Leong CP. Effect of neuromuscular electrical stimulation in a patient with Sjogren's syndrome with dysphagia: a real time videofluoroscopic swallowing study. Chang Gung Med J. May-Jun;33(3):338-345.

O Clark H, Lazarus C, Arvedson J, Schooling T, Frymark T. Evidence-Based Systematic Review: Effects of Neuromuscular Electrical Stimulation on Swallowing and Neural Activation. Am J Speech-Language Pathology. 2009;18(November):361-375.

O Fowler LP, Gorham-Rowan M, Hapner ER. An Exploratory Study of Voice Change Associated With Healthy Speakers After Transcutaneous Electrical Stimulation to Laryngeal Muscles. J Voice. Jan 14 2009.

O Gallas S, Marie JP, Leroi AM, Verin E. Sensory Transcutaneous Electrical Stimulation Improves Post-Stroke Dysphagic Patients. Dysphagia. Oct 24 2009. NMES in the treatment of dysphagia. Review of the evidence. Page 26 of 26 Last updated: 9/28/2010

O Humbert IA, Poletto CJ, Saxon KG, et al. The effect of surface electrical stimulation on hyolaryngeal movement in normal individuals at rest and during swallowing. J Appl Physiol. Dec 2006;101(6):1657-1663.

O Kiger M, Brown CS, Watkins L. Dysphagia management: An analysis of patient outcome using VitalStim Therapy compared to traditional swallow therapy. Dysphagia. 2006(DOI: 10.1007/s00455-006-9056-1).

O Lim KB, Lee HJ, Lim SS, Choi YI. Neuromuscular electrical and thermal-tactile stimulation for dysphagia caused by stroke: a randomized controlled trial. J Rehabil Med. Feb 2009;41(3):174-178.


O Mitchell K, Ramirez K, Robles M, et al. The Effectiveness of NMES (VitalStim) Therapy in the Neonatal Population: Children's Hospital of Orange County; 2010.

O Park J-W, Youngsun K, Jong-Chi O, Sung-Joon P. Effortful swallow combined with electrical stimulation in post-stroke dysphagic patients. DRS. New Orleans, LA; 2009.

O Park JW, Oh JC, Lee HJ, Park SJ, Yoon TS, Kwon BS. Effortful swallowing training coupled with electrical stimulation leads to an increase in hyoid elevation during swallowing. Dysphagia. Sep 2009;24(3):296-301.

O Ryu JS, Kang JY, Park JY, et al. The effect of electrical stimulation therapy on dysphagia following treatment for head and neck cancer. Oral Oncol. Dec 16 2008.

O Suiter DM, Leder SB, Ruark JL. Effects of neuromuscular electrical stimulation on submental muscle activity. Dysphagia. Jan 2006;21(1):56-60.


O FEESO Langmore, Susan E. Evaluation of oropharyngeal

dysphagia: which diagnostic tool is superior? Opinion in Otolaryngology & Head & Neck Surgery: December 2003 - Volume 11 - Issue 6 - pp 485-489

O Kidder, T.M, Langmore, S.E. and Martin, BJ. Indications and techniques of endoscopy in evaluation of cervical dysphagia: Comparison with radiographic techniques. DYSPHAGIA. Volume 9, Number 4, 256-261, DOI: 10.1007/BF00301919


O MBSS

O Susan E. Langmore, and Jeri A. Logemann After the Clinical Bedside Swallowing Examination: What Next? Am J Speech Lang Pathol 1991;1;13-20


O ORAL CHEMESTHETIC PROPERTIES AND TASTE PROPERTIES

O Logemann, J.A., Preswallow sensory input: its potential importance to dysphagic patients and normal individuals. Dysphagia, 1996. 11(1): p. 9-10.

O Kagel, M., C and N.A. Leopold, Dysphagia in Huntington's disease: a 16-year retrospective.Dysphagia, 1992. 7(2): p. 106-114.

O Ding, R., et al., The effects of taste and consistency on swallow physiology in younger and older healthy individuals: a surface electromyographic study. Journal of Speech, Language and Hearing Research, 2003. 46: p. 977-989.

O Leow, L.P., et al., The influence of taste on swallowing apnea, oral preparation time, and duration and amplitude of submental muscle contraction. Chem Senses, 2007. 32(2): p. 119-28.

O Bülow, M., R. Olsson, and O. Ekberg, Videoradiographic analysis of how carbonated thin liquids and thickened liquids affect the physiology of swallowing in subjects with aspiration on thin liquids. Acta Radiologica, 2003. 44(4): p. 366-372.

O Logemann, J.A., et al., Effects of a sour bolus on oropharyngeal swallowing measures in patients with neurogenic dysphagia. Journal of Speech and Hearing Research, 1995. 38(3): p. 556-63.

O Pelletier, C.A. and H.T. Lawless, Effect of citric acid and citric acid-sucrose mixtures on swallowing in neurogenic oropharyngeal dysphagia. Dysphagia, 2003. 18(4): p. 231-41.

O Chee, C., et al., The influence of chemical gustatory stimuli and oral anaesthesia on healthy human pharyngeal swallowing. Chemical Senses, 2005. 30: p. 393-400.

O Pelletier, C.A. and G.E. Dhanaraj, The effect of taste and palatability on lingual swallowing pressure.Dysphagia, 2006. 21(2): p.

121-8.

O Nixon, T.S., Use of carbonated liquids in the treatment of dysphagia., in Network: A Newsletter of Dietetics in Physical Medicine and Rehabilitation. 1997.


O Palmer, P.M., et al., Effects of a sour bolus on the intramuscular electromyographic (EMG) activity of muscles in the submental region. Dysphagia, 2005. 20(3): p. 210-7.

O Miura, Y., et al., Effects of taste solutions, carbonation, and

cold stimulus on the power frequency content of swallowing submental surface electromyography. Chem Senses, 2009. 34(4): p. 325-31.

O Krival, K. & Talbert, C. Effects of Distilled Water, Schweppes ® Club Soda and Reed’s Extra Ginger Brew on Lingual-Palatal Pressure During Swallowing in Healthy Women. Oral Presentation. Eighteenth Annual Dysphagia Research Society Meeting in San Diego, CA, USA. March, 2010


O Viscosity, texture, size, and other bolus characteristics

O Steele, C.M. and P.H. van Lieshout, Influence of bolus consistency on lingual behaviors in sequential swallowing. Dysphagia, 2004. 19(3): p. 192-206.

O Chi-Fishman, G. and B.C. Sonies, Effects of systematic bolus viscosity and volume changes on hyoid movement kinematics. Dysphagia, 2002. 17(4): p. 278-287.

O Kuhlemeier, K.V., J.B. Palmer, and D. Rosenberg, Effect of liquid bolus consistency and delivery method on aspiration and pharyngeal retention in dysphagia patients. Dysphagia, 2001. 16(2): p. 119-122.

O Castellanos, V.H., et al., Use of thickened liquids in skilled nursing facilities. Journal of the American Dietetic Association, 2004. 104(8): p. 1222-1226.

O Garcia, J.M. and E. Chambers, Insights into practice patterns for thickened liquids. Perspectives on Swallowing and Swallowing Disorders (Dysphagia), 2006. 15(1): p. 14-18.

O Steele, C.M. and P.H. Van Lieshout, Does barium influence tongue behaviors during swallowing?American Journal of Speech Language Pathology, 2005. 14(1): p. 27-39.

O Hiiemae, K.M. and J.B. Palmer, Food transport and bolus formation during complete feeding sequences on foods of different initial consistency. Dysphagia, 1999. 14(1): p. 31-42.

O Garcia, J.M., E.t. Chambers, and M. Molander, Thickened liquids: practice patterns of speech-language pathologists. American Journal of Speech-language Pathology / American Speech-Language-Hearing Association, 2005. 14(1): p. 4-13.

Online dysphagia resources

O Dysphagia Mail list- http://www.dysphagia.com/O Dysphagia Research Society-

http://www.dysphagiaresearch.org/O Dysphagia Therapy Group on Facebook-

http://www.facebook.com/home.php?sk=group_102453736503465&ap=1

O Dysphagia Ramblings-Blog apujo5.blogspot.comO Special Interest Group 13-Swallowing and Swallowing

Disorders (ASHA)- http://www.asha.org/SIG/13/O ASHA Graduate Curriculum Guide-

http://www.asha.org/docs/html/TR2007-00280.htmlO Board Recognized Specialty in Swallowing (BRS-S)-

http://www.swallowingdisorders.org/O www.dysphagiaramblings.com

http://www.dysphagia.com/

http://www.dysphagiaresearch.org/



http://www.asha.org/SIG/13/

http://www.asha.org/docs/html/TR2007-00280.html

http://www.swallowingdisorders.org/

http://www.swallowingdisorders.org/

http://www.dysphagiaramblings.com/

dysphagia treatment

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