future webinar conferences · 2019-05-09 · future webinar conferences march 24, 2010 12-1pm et...
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Future Webinar ConferencesMarch 24, 2010 12-1pm ET
Symptom Assessment and ManagementSteven Weisbord, MD
April 28, 2010 12-1pm ETIncorporating Palliative Care into the Dialysis Unit
Michael Germain MDMichael Germain, MD
To register contact:Samantha Dorr
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Mid-Atlantic Renal Coalition804.794.3757
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For additional information, including resources for patients and families, p
visit www.kidneyeol.org
Advance care planning informationDo not resuscitate orders in the dialysis unitAccess to hospice
C t t th Kid E d f Lif C liti t
pClinician educational resources
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Contact the Kidney End of Life Coalition [email protected]
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Pain Assessment and Pain Assessment and Management in ESRD
Sara Davison3
Sara Davison
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ObjectivesObjectives
Discuss the magnitude and impact of chronic Discuss the magnitude and impact of chronic pain in ESRDpain in ESRD
Discuss barriers to adequate pain assessment Discuss barriers to adequate pain assessment and management in ESRDand management in ESRDand management in ESRDand management in ESRD
Outline potential strategies to enhance painOutline potential strategies to enhance painOutline potential strategies to enhance pain Outline potential strategies to enhance pain assessment and management in ESRD assessment and management in ESRD
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Symptom Burden in Dialysis Patients 507n = 507
80
60
70
80
tiredwell-being
40
50
60 gappetitepainitching
20
30
40 itchingdrowsyanxiousSOB
0
10
20 SOBnausea
5
0
Davison, et al KI 2006;69:1621
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Severity of Pain: Brief Pain I t SInventory Scores
Severity Mild Moderate Severe Mean BPI y(n=103) (0-3) (4-5) (6-10) Score
WorstWorst 17.5%17.5% 27.2%27.2% 55.3% 7.037.03
LeastLeast 74 8%74 8% 16 5%16 5% 8 7% 3 073 07
82.5%82.5%LeastLeast 74.8%74.8% 16.5%16.5% 8.7% 3.073.07
Average Average 41.7%41.7% 30.1%30.1% 28.2% 5.615.6158.3%58.3%NowNow 44.7%44.7% 28.2%28.2% 27.2% 4.994.99
6Davison, AJKD 2003
Cause of pain is NOT predictive for severity of pain
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The Impact of Pain and Overall S t B d f ESRD P ti tSymptom Burden for ESRD Patients
No – Mild Mod – Severe Odds Ratio PNo Mild pain
Mod Severe pain
Odds Ratio P
Depression 18% 34% 2.312.31 0.010.01p 3 %Insomnia 53% 75% 2.322.32 0.020.02
D i JPSM 2005
Symptom burden accounted for 29% of the impairment in physical HRQL and 39% of the impairment in mental HRQL
Davison JPSM 2005
physical HRQL and 39% of the impairment in mental HRQLDavison KI 2006
Change in symptom burden accounted for 34% of the change in
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g y p gphysical HRQL and 46% of the change in mental HRQL.
Davison NDT 2006
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Point Prevalence of Analgesic U DOPPS Use: DOPPS Bailie GR et al, KI 2004
Analgesic Number of PatientsAnalgesic Number of Patients1997
N = 29882000
N = 2476N = 2988 N = 2476Any analgesicAny analgesic 30.2%30.2% 24.3%24.3%Any narcoticAny narcotic 18 0%18 0% 14 9%14 9%Any narcoticAny narcotic 18.0%18.0% 14.9%14.9%Any NSAIDAny NSAID 6.4%6.4% 2.3%2.3%AnyAny 11 1%11 1% 6 3%6 3%Any Any acetaminophenacetaminophen
11.1%11.1% 6.3%6.3%
¾ f ti t ti d t t i8
¾ of patients reporting moderate to severe pain were not prescribed analgesics
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Barriers to Effective Pain M i ESRD Management in ESRD Davison Adv CKD 2005
Complicated pharmacokinetics and pharmacodynamicsComplicated pharmacokinetics and pharmacodynamicsp p p yp p p yUremic symptoms may mimic opioid toxicityUremic symptoms may mimic opioid toxicityTreatment algorithms for cancer may not apply to ESRD Treatment algorithms for cancer may not apply to ESRD ElderlyElderlyyyLimb preservationLimb preservationPain is often experienced in the context of multiple, complex Pain is often experienced in the context of multiple, complex symptoms and EOL issues symptoms and EOL issues
Interfere markedly with psychological, social and physical coping Interfere markedly with psychological, social and physical coping skillsskills
Lack of recognition of the problemLack of recognition of the problem Weisbord SD. CJASN 2007
Therefore not a clinical or research focus Therefore not a clinical or research focus –– a unique body of a unique body of knowledge is required to integrate nephrology & PCknowledge is required to integrate nephrology & PCImplementation of a standardized symptom screening & assessmentImplementation of a standardized symptom screening & assessment
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Implementation of a standardized symptom screening & assessment Implementation of a standardized symptom screening & assessment process may improve provider recognition & treatment of symptomsprocess may improve provider recognition & treatment of symptoms
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Symptom Screening - ESAS
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Dialysis Dialysis Symptom Index
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Pain AssessmentPain history - Appropriate investigations and diagnosis
OnsetLocationDurationI t itIntensitySeverity – impact on HRQLTemporal characteristicse po a c a ac e s csTriggering/relieving factorsType (nociceptive, neuropathic)Psychological symptomsTreatment (duration, dosage, side-effects)Goals & expectations of treatment
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Goals & expectations of treatment
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Etiology of Pain Percentage (%)Musculoskeletal 63 1Musculoskeletal 63.1
Osteoarthritis 19.4Musculoskeletal: Not yet diagnosed 18.4Musculoskeletal: Not yet diagnosed 18.4Osteoporosis (resulting in spinal fractures)
9.7
Inflammatory Arthritis 6.8Renal Osteodystrophy 4.9Discitis/Osteomyelitis 1.9
Related to Dialysis Procedure 13.6P i h l P l th 12 6Peripheral Polyneuropathy 12.6Peripheral Vascular Disease 9.7Other (including trauma PCKD 20 3
16
Other (including trauma, PCKD, malignancy, calciphylaxis)
20.3
Davison, AJKD 2003
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Calciphylaxis (calcific uremic arteriolopathy)
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Osteitis Fibrosa
Bone and joint pain on exertion in skeletal sites that are subject to biomechanical stress.Frequently associated with calcium phosphate deposition in arteries, joints, soft tissues, and the viscera; may be associated with proximal myopathy, ruptured tendons,Adynamic Bone disease: bone and
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with proximal myopathy, ruptured tendons, pseudogout, and calciphylaxis. joint pain (at rest and with exertion),
fractures, skeletal deformities
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Pain Assessment
Pain history, appropriate investigations and diagnosisType of pain (nociceptive, neuropathic, or both) directs nociceptive, neuropathic, or both) directs
l i t tl i t tanalgesic strategyanalgesic strategyDN4
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Bouhassira D et al. Pain 2005
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Pain AssessmentPain Assessment
Pain history, appropriate investigations and diagnosisType of pain (nociceptive, neuropathic, or both) directs analgesic strategyanalgesic strategy
Regular assessment and recording of pain severity, effects g g p y,on functioning and HRQL, and adverse effects of current management
This can be largely protocol drivenThis can be largely protocol drivenPossible role for advanced nurse practitioner
22Pharmacologic and non-pharmacologic interventions
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Principles of Pain Management
‘by mouth’‘by the clock’by the clock‘by the ladder’‘f th i di id l’
_
‘for the individual’‘attention to detail’
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OPIOID FOR MODERATE
Freedom from painFreedom from pain
OPIOID FOR MODERATE TO SEVERE PAIN
± NON-OPIOID± ADJUVANT
3± ADJUVANT
Pain persisting or increasingPain persisting or increasing
WEAK OPIOID FOR MILD TO MODERATE PAIN
± NON-OPIOIDADJUVANT
2± ADJUVANT
Pain persisting or increasingPain persisting or increasing
NON-OPIOID ± ADJUVANT1
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± ADJUVANT
PAINPAIN
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Efficacy of the WHO Analgesic Ladder to Treat Pain in ESRDLadder to Treat Pain in ESRD
89
107.7 7.5
45 HD patients
678
Initial Pain Score (0-10) Post Treatment Pain Score (0-10)
45
1 8
Score (0 10)
123
1.41.8
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1Neuropathic Pain Nociceptive Pain
Type of Pain Barakzoy, JASN 2006
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WHO Analgesic Ladder: Step 1WHO Analgesic Ladder: Step 1WHO Analgesic Ladder: Step 1WHO Analgesic Ladder: Step 1
A t i hAcetaminophen
Does not require dose adjustment in ESRD
Non-narcotic of choice for mild-moderate pain in CKD/ESRD
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WHO Analgesic Ladder: Step 1WHO Analgesic Ladder: Step 1g pg pNSAIDS
Can be used in conjunction with acetaminophenj p
Increased risk of bleeding with CKD/ESRD
Potential cardiovascular risks associated with COX- 2 inhibitors
Renal side effects: hypertension, hyponatremia, loss of RRF, hyperkalemia
Topical agents can be used effectively
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More appropriate for specific acute indications e.g. gout v. chronic use
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WHO Analgesic Ladder: Step 2WHO Analgesic Ladder: Step 2g pg p
TramadolN i id ith i il id ff t t i idNon-opioids with similar side effects to opioids
Should not be given to patients on SSRIsShould not be given to patients on SSRIs
Prolongation of ½ life in renal failure (metabolized g (in liver with renal excretion of active metabolites).
May be epileptogenic in conditions with loweredMay be epileptogenic in conditions with lowered seizure threshold such as ESRD
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Maximum dose is 50mg BID
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OpioidsOpioidsActive metabolites are renally excretedActive metabolites are renally excreted
Side Effects
ConstipationConstipationNausea and vomitingNausea and vomitingDecreased appetiteDecreased appetiteP iP iPruritusPruritusHypotensionHypotensionCNS d i t d iCNS d i t d i
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CNS and respiratory depressionCNS and respiratory depression
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WHO Analgesic Ladder: Step 2g p
CodeineWeak opioidWeak opioidpp
Elimination ½ life is significantlyElimination ½ life is significantlyElimination ½ life is significantly Elimination ½ life is significantly increased in dialysis patientsincreased in dialysis patients
Reports of neurotoxicityReports of neurotoxicityReports of neurotoxicityReports of neurotoxicityToxicity is unpredictableToxicity is unpredictable
30Should not be usedShould not be used
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WHO Analgesic Ladder: Step 2Dextropropoxyphene
i iWeak opioid
Usually prescribed in combination with acetaminophenUsually prescribed in combination with acetaminophen
major active metabolite is norpropoxyphene:accumulates in CKDassociated with toxicity
Dextropropoxyphene is not recommended for use in patients with severe CKD
31It has been withdrawn from use in the UK.
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WHO Analgesic Ladder: Step 3WHO Analgesic Ladder: Step 3
Oxycodone
Elimination significantly decreased in ESRDFibrillary GNGrowing popularity as a drug of abuse and is now considered one of the most desirable of prescription drugsof prescription drugs
Should be used with caution in ESRD
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Should be used with caution in ESRD
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WHO Analgesic Ladder: Step 3
Morphine
Active metabolite M6G is renally excreted and accumulates in ESRD: increased side effects and toxicityto c ty
No data regarding dose adjustments for sustained-release preparations of morphine
Should not be used for chronic pain management33
Should not be used for chronic pain management
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WHO Analgesic Ladder: Step 3Hydromorphone
5-7 times more potent than morphine (when administered orally), shorter duration of action
Case reports of adverse effects
Published and clinical experience indicates that it may be administered safely in ESRD
May be particularly useful in patients who have intolerable side effects from other narcotics
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May cause less pruritus, sedation, & nausea
Lee MA, Palliat Med 2001
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Non-Compartmental Pharmacokinetics for Hydromorphone and H3G (n=12)
t1/2 AUC(Tau)
for Hydromorphone and H3G (n=12)
Phase (h) (ng.h/mL) RHydromorphone
Dialysis 3.2 ± 2.4 41.6 ± 20.3 1.8 ± 0.8
M l i D 5 9 4 4 33 9 27 3 2 7 1 6Multi-Dose 5.9 ± 4.4 33.9 ± 27.3 2.7 ± 1.6Hydromorphone-3-Glucuronide
Dialysis 3.3 ± 2.1 3243.9 ± 2768.0 1.8 ± 0.7
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Multi-Dose 33.3 ± 41.8 4229.9 ± 2975.4 12.5 ±15.1
Davison, JOM 2008
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Non Compartmental Non-Compartmental Pharmacodynamics (n=12)
Maximum Time to Max % time with
PhaseAnalgesia(% ± SD
Analgesia(hours ± SD)
analgesia(% ± SD)
Dialysis -68.8 ± 37.5 1.8 ( 0.5 - 4.0) -66.3 ± 40.1Multi-dose -65.5 ± 43.3 3.0 (0.5 - 4.0) -40.2 ± 21.8
36Davison, JOM 2008
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WHO Analgesic Ladder: Step 3WHO Analgesic Ladder Step 3Methadone
Opioid commonly used for treatment of severe pain orOpioid commonly used for treatment of severe pain orOpioid commonly used for treatment of severe pain or Opioid commonly used for treatment of severe pain or withdrawal in opioid addictswithdrawal in opioid addicts
High oral bioavailability and a long ½ lifeHigh oral bioavailability and a long ½ lifeHigh oral bioavailability and a long ½ lifeHigh oral bioavailability and a long ½ life
Essentially no PK data in ESRD; single report Essentially no PK data in ESRD; single report ti l l l i ESRDti l l l i ESRDsuggesting normal levels in ESRDsuggesting normal levels in ESRD
Excreted mainly in the feces, with metabolism into Excreted mainly in the feces, with metabolism into pharmacologically inactive metabolites primarily in pharmacologically inactive metabolites primarily in the liver althoughthe liver although 20% is excreted unchanged in20% is excreted unchanged inthe liver, although the liver, although ∼∼20% is excreted unchanged in 20% is excreted unchanged in the urinethe urine
A d t l i t l ti l d f tA d t l i t l ti l d f t37
Anecdotal experience suggests a relatively good safety Anecdotal experience suggests a relatively good safety profile in ESRD if monitored carefully.profile in ESRD if monitored carefully.
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WHO Analgesic Ladder: Step 3WHO Analgesic Ladder Step 3
Fentanyl (transdermal formulation)When patients are on a stable narcotic doseWhen patients are on a stable narcotic dose
Essentially no PK data of transdermal Essentially no PK data of transdermal yyformulation or effect of dialysis on levels (one formulation or effect of dialysis on levels (one report stated poor removal)report stated poor removal)
Toxicity has been reported but anecdotal Toxicity has been reported but anecdotal
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experience suggests a reasonable safety profile experience suggests a reasonable safety profile in ESRD if monitored carefullyin ESRD if monitored carefully
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WHO Analgesic Ladder: Step 3BuprenorphineSemisynthetic opioid with a long duration of action
30 - 60 x as potent as oral morphine when given SLMetabolized by the liver, little unchanged drug in the urineThe two major metabolites excreted in the urine
Buprenorphine-3-glucuronide (B3G): inactive Norbuprenorphine: is a less potent analgesic
Administered sublingually or via a transdermal patch. Given these properties and the minimal changes in kinetics in renal failure, it may be a potentially useful y yanalgesic for use in CKD
Might be difficult to antagonize with opioid antagonists
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Care should be taken when used with benzodiazepines
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WHO Analgesic Ladder: Step 3WHO Analgesic Ladder Step 3
Pethidine (Meperidine)
Active metabolite norpethidine accumulates in Active metabolite norpethidine accumulates in patients with renal impairment patients with renal impairment
neuroexcitatory effects and risk of neuroexcitatory effects and risk of convulsionsconvulsions
DO NOT use in CKDuse in CKD
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Adjuvants: Neuropathic PainAdjuvants: Neuropathic PainAntidepressants p
Tricyclic antidepressants: synergistic with opioidsTricyclic antidepressants: synergistic with opioids
Anticholinergic effects: dry mouth; sedation, Anticholinergic effects: dry mouth; sedation, weight gain; caution in patients with cardiac weight gain; caution in patients with cardiac conduction abnormalitiesconduction abnormalitiesconduction abnormalitiesconduction abnormalities
minor adverse events occur in about oneminor adverse events occur in about one--third of third of patientspatientsDespiramine may have less side effects than Despiramine may have less side effects than amitriptylineamitriptylineSelective serotonin reSelective serotonin re--uptake inhibitors (SSRIs) uptake inhibitors (SSRIs)
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p ( )p ( )appear to be less effective as adjuvant analgesics but appear to be less effective as adjuvant analgesics but have fewer adverse reactionshave fewer adverse reactions
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AdjuvantsAnticonvulsants
Gabapentin: effective for neuropathic pain and restless legsSuppresses depolarization of afferent pain neurons by inhibiting calcium influxAccumulation with toxicity in ESRD – Max dose 300mg/dayg yPregabalin: identical mechanism of action as gabapentin for the tx of neuropathic pain.
Carbamazepine: neuropathic painDoes not require dose adjustment in ESRD
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q jStart @ 200mg BID
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43http://www.kidneyeol.org/painbrochure9.09.pdf.
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Historical Use of Marijuana (Cannabis) Oldest known Neolithic Oldest known Neolithic
culture in China culture in China
An 1848 commentary in the An 1848 commentary in the British Pharmacopoeia British Pharmacopoeia outlined psychotropic, outlined psychotropic, antispasmodic and analgesicantispasmodic and analgesicantispasmodic and analgesic antispasmodic and analgesic effects of Cannabiseffects of Cannabis
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Marijuana (Cannabis)Marijuana (Cannabis)Marijuana is a crude drug obtained from the Marijuana is a crude drug obtained from the C bi tiC bi ti l tl tCannabis sativa Cannabis sativa plantplant
Consists of approximately 460 activeConsists of approximately 460 activeConsists of approximately 460 active Consists of approximately 460 active componentscomponents
> 60 of these have the 21> 60 of these have the 21--carbon structure of carbon structure of typical cannabinoidstypical cannabinoids
∆9∆9 THCTHC∆9∆9--THCTHC11
Analgesic, muscle relaxant, antiemetic, Analgesic, muscle relaxant, antiemetic, appetite stimulant, psychoactive effectsappetite stimulant, psychoactive effects
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pp , p ypp , p y
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Cannabinoid ReceptorsCannabinoid Receptors
CB1 receptorCB1 receptorFound in the brain, spinal cord and peripheral nervous system.nervous system.
Also present in various peripheral tissues such as heart and vasculature
CB2 receptorFound on immune cells in peripheral tissues
More recently, found in the CNS
53(Davison JS et.al. Science 2006)
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Endogenous CannabinoidsEndogenous CannabinoidsAnandamide (AEA): 1992 “internal bliss”( )
endogenous ligand of the CB1 receptor resembles THC structurally: similar
tiactions levels in the brain ~ to neurotransmitters such as dopamine and serotoninsuch as dopamine and serotonin .
2-arachidonyl glycerol (2-AG):y g y ( )Brain tissue concentrations ~ 200-fold higher than AEA
20 hi h th GABA54
~ 20 x higher than GABA
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Putative Mechanism of Action of Endocannabinoids
URB597
Endocannabinoids
VDM11
55Christie and Vaughan, 2001
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Cannabinoid Drugs Approved by FDA and Health Canada
Dronabinol: synthetic THC (Marinol)Anorexia/wasting in patients with HIVEmesis due to cancer chemotherapy
Nabilone: synthetic cannabinoid similar to THC (Cesamet)
THC:CBD Cannabis extract (Sativex)Adj ti t f thi i (MS)
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Adjunctive tx for neuropathic pain (MS)Adjunctive tx for cancer pain
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Cannabidiol (CBD)Cannabidiol (CBD)
Anti-inflammatoryAntioxidantAnti-seizureAnxiolytic o y cAntipsychotic properties.
Inflammatory and neuropathic pain
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Cannabinoids v. OpioidsOpioids Cannabinoids
Nausea & Vomiting Increases DecreasesNausea & Vomiting Increases DecreasesAppetite Decreases IncreasesAgitation Increases DecreasesAgitation Increases DecreasesSleep Disturbs ImprovesPruritus Increases DecreasesPruritus Increases DecreasesHypotension ++ +Constipation ++ +/-Constipation ++ +/-Sense of well-being +/- IncreasesPsychosis/abuse + ++
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Psychosis/abuse + ++
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ConclusionsConclusionsChronic pain is common in ESRD and is ptypically severe
Chronic pain has a substantial negative impact on HRQL
Pain assessment tools for ESRD arePain assessment tools for ESRD are available (mESAS)
59Pain algorithms for ESRD are available
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Questions?Q
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For questions about pain management,e-mail Samantha Dorr
at sdorr@nw5 esrd netat [email protected] for information
about pain management resourcesabout pain management resources visit www.kidneyeol.org/
and click on Professional Resources
Contact the Kidney End of Life Coalition at
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To Register for the Webinar To Register for the Webinar Conferences on March 24 and April 28April 28
ContactSamantha Dorr
Mid-Atlantic Renal CoalitionMid-Atlantic Renal Coalition804.794.3757
d @ 5 d62