current issues in the diagnosis and management of sjogren’s syndrome
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Current issues in the Diagnosis and Management of Sjogren’s Syndrome. Robert I. Fox, MD., Ph.D. Scripps Memorial Hospital And Research Institute La Jolla, CA [email protected]. Primary Sjogren. - PowerPoint PPT PresentationTRANSCRIPT
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Current issues in the Diagnosis and Management of
Sjogren’s Syndrome
Robert I. Fox, MD., Ph.D.Scripps Memorial Hospital
And Research Institute
La Jolla, CA
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Primary Sjogren
A systemic autoimmune disease whose characteristic is ocular and salivary
involvement, but also includes other organs such as lung (pneumonitis), kidney
(interstitial nephritis), and neurological (central and peripheral) and lymphoproliferative features
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Correct therapy depends on correct diagnosis
a) New international criteria
b) Potential pitfalls in diagnosis
Goal-1
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Goals-2
Review the use of
Topical medications
for dry eyes and dry mouth
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Goals-3
Review the current guidelines for diagnosis and therapy
of
extra glandular manifestations
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Goals-4
How to empower the patient to participate in their own care
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Epidemiology of Sjogren’s
1. Predominately women (9:1) with two ages of median onset
In the 30’s and 50’s
2. Much of what we call SLE in the older patient is actually Sjogren’s
syndrome
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What causes Sjogren’s
A combination of Genetic and Environmental Factors
From family and twin studies, approximately 4 genes are required
but even then an environmental factor is needed
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Genetics
1. Most important is HLA-DR, which correlates closely with ANA and anti-SS-A antibody
2. Genes of B-cell activation similar to SLE patients
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Environmental
No single agent identified
Viral candidates may include EBV and coxsackie viruses
Hepatitis C, HIV and HTLV-1 can mimic
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There is good agreement about diagnosis for the patient with florid symptoms of
keratoconjunctivitis sicca (KCS), parotid swelling, and high titer ANA with
SS-A/SS-B.
The issue in these patients will be therapy
And the extent of extra glandular involvement.
Objective-1Clinical Issues
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Typical features of dry eyes, dry mouth and swollen glands
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Dryness results in the clinical appearance of keratoconjunctivitis sicca (KCS)
characteristic of Sjogren’s syndrome
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Severe Xerostomia with dry tongue
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Sjogren’s syndromeEye and Oral Features
1. Most of these patients have a positive ANA with positive
Anti-Sjogren’s SS-A/SS-B antibodies
2. They have specific needs for the eye and mouth care
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Since these patients see many health care professionals
(ophthalmologists, dentists, rheumatologists)
their care is expensive and fragmented
We must empower them to be part of the therapeutic team and even to
educate their health providers
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Sjogren’s Syndrome- Cervical Dental Caries
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In addition to dry eyes and dry mouth
These patients have signs and symptoms that affect other parts of their body ranging from obvious
manifestation of skin vasculitis to vague symptoms of fatigue and
cognitive loss
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Diagnostic IssuesIn the patient with true Sjogren’s
Sjogren’s syndrome
ExtentOf
Extra glandularDisease
TherapyAnd
Education
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Differential Diagnosis: is the Dryness Due to Other Causes
Non Salivary Gland DiseaseDrugs-esp.. BP and cardiac
muscle relaxants antidepressants and
OTC meds for coldAcute anxiety and depressionMouth breathingCentral lesions:
Multiple sclerosisAlzheimer’s
Salivary Gland DiseaseHepatitis CSarcoidosisFatty Infiltrate of GlandHIV diseaseLymphomaCancer of the Salivary GlandInfection of gland (TBC, Actinomycosis)Head & neck radiotherapy
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The most difficult and common questions involve the diagnosis and treatment of the patients with vague complaints of dryness, fatigue, cognitive dysfunction, arthralgias
and low titer ANA
Objective-2Clinical Issues
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Objective-3 Clinical Issues of Diagnosis of fatigue
Primary Sjogren’s(high ESR, CRP)
HypothyroidDrug toxicitySleep disorder
(nocturnal myoclonus)
Fibromyalgia withLow titer ANA
and depression
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Issues in Diagnosis-1
Past confusion over criteria
San Diego criteria (0.5% incidence) versus
Original EEC criteria (5% incidence)
Now clarified
With new proposed international
criteria
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Issues in Diagnosis-2
Submitted criteria (11/01) by International SS advisory board
Will require either
A positive minor salivary gland biopsy
Or
Antibody against SS-A (Ro)
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New international criteria-1
1. Ocular Symptoms
2. Oral Symptoms
3. Salivary gland function (flow rate by flow rate, scan, or sialography)
AND
4. Histopathology (focus score > 1)
5. Autoantibody to SS-A or SS-B
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New international criteria-2
New Criteria for SS (cont’d)
Exclusions
Pre-existing lymphoma, sarcoid
Hepatitis B or C
Drugs with Anticholinergic side effects
(measurements of tear/saliva with patient off drug for 3 half lives)
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Caution in interpreting studies on clinical associations published during past several years-since results will depend on the inclusion criteria
For example:
A) On disease associations (esp. liver-as hepatitis C now now an exclusion)
B) “Primary” Fibromyalgia patients now excluded
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How good are our tests?
The lip biopsy and the
the ANA and anti-SS A antibody
are often considered “specific” tests
but they are not specific
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Pitfalls in diagnosis-1
A) Positive ANA does not mean Sjogren’s or SLE
These tests are sensitive but not specific (only about 1:100 patients with ANA 1:320 will have SS or SLE)
B) anti SS-A antibody more specific-but differences between detection kits
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The ANA is sensitive but not specific
The ANA should not be used as a screen
for Sjogren’s or SLE
but to confirm a clinical diagnosis
ANA 1:80 present in 20% of normals
(esp. in fibromyalgia patients)
This is important since some aggressive physicians have actually treated fibromyalgia patients for their fatigue with
cyclophosphamide thinking that it was CNS vasculitis
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On review of outside biopsies diagnosed as Sjogren’s syndrome,
over half (32/60) were reclassified on review.
Vivino, F.B., I. Gala, and G.A. Hermann, Change in final diagnosis on second evaluation of labial minor salivary
gland biopsies. J Rheumatol, 2002. 29(5): p. 938-44.
Even the Gold standard of lip biopsy is often misread by pathologists
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Part of the confusion is that patients complain of dry eyes/mouth and rheumatologists talk
about antibodies
Why do patients complain of dry eyes and dry mouth?
It is important to recognize that symptoms can only be interpreted as part
a functional unit that involves
a neuroendocrine circuit
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They are describing the sensation
of increased friction
As the eyelid traverses the orbit
Or the tongue moves around the buccal mucosa
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Normally the upper eyelid glides over the globe on a coating called the tear film
composedof water, protein, mucins
orbit
eyelid
Tear film
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When the tear film is inadequate,The upper lid sticks to the surface of the orbit and
Actually pulls of the surface layer of the ocular surface
orbit
eyelid
Tear film
The Sjogren’spatient is
describingincreased friction asthe upperlid moves
over the globe
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Dryness results in the clinical appearance of keratoconjunctivitis sicca (KCS)
characteristic of Sjogren’s syndrome
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In Sjogren’s syndrome
A similar deficiency in the saliva increases the friction as the tongue moves around the
mouth in order to swallow or talk
The decrease in saliva leads to acceleration of dental decay and other infections such as
oral candidiasis
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The Sjogren’s Syndrome with swollen parotid gland
The concern is infection or
lymphoma
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Sjogren’s Syndrome - Diffuse Submandibular Salivary Gland Enlargement
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Sjogren’s Syndrome - Ascending Salivary Gland Infection
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Sjogren’s Syndrome - Investigations
MRI
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If you order an MRI
1. Ask for MRI -sialography (this is just a fat suppression view to
visualize the ducts). It takes only 5 minutes more and no risk
2. Have the MRI printed out on CD and give copy to patient for their
record
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Although the systemic manifestations can occur in Sjogren’s as in SLE, there are
some subtle differences
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Extraglandular manifestations
Sjogren’s syndrome
Skin-hyperglob purpura…….
Lung-interstitial pneumonitis
Renal-interstitial nephritis…Cardiac-pulmonary hypertension..
Hematologic--lymphoma….Neurologic-peripheral neuropathyEsophageal-dysphagia and tracheal reflux
SLESkin-leukocytoclastic vasculitis
Lung-pleural effusionsRenal-glomerulonephritisCardiac-pericarditisHematologic-ITP, hemolytic anemia
Neuropathy-mononeuritis multiplex
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Systemic therapy-1
In general, similar to SLE
Steroids work and the question is how to get the patients off steroids
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Systemic therapy-2
Usually start with hydroxychloroquine or methotrexate
for rash or arthralgias
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Systemic therapy-3
For severe visceral vasculitis,
still use cyclophosphamide (pulse)
But try to use less than 6 cycles
and then try
Leflunomide, mycophenolic acid
anti-CD20 (Rituxin)
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Systemic therapy-4
Recent preliminary report that infliximab (Remicade)
Published (Steinberg, 2003)
But a larger multicenter trial
Presented at American College of Rheumatology
Did not show benefit of TNF inhibitor
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How can we educate and make the patient part of the therapeutic
team
In an era of decreased time for patient contact, we must utilize the internet and support groups as a backbone.
The internet can be source of either information or mis-information
unless we help create useful sites.
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What should be on an Internet site?
We need to ask Patients what they want and need-
a) medications and procedures
b) insurance issues
c) Hot “Links” to other relevant sites
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But not all patients are computer literate?
Determine if physicians and patients can work through local libraries,
where high school students can fulfill
“civic service” by setting up sites and serving as resources to maintain sites.
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Summary-1
1. New diagnostic criteria are developed that should diminish confusion in clinical practice
and in the research literature
2. There is variability in reading minor salivary gland biopsies and interpretation of positive
ANA’s
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Sjogren’s syndrome has clinical features and treatment that are generally similar to
SLE
But the Sjogren’s patient has particular needs in terms of the medications they
tolerate and particular disease manifestations.
Summary-2