Presentation on theme: "Sarcoidosis Overview Kenneth S. Knox, MD Assistant professor of medicine Division of Pulmonary & Critical Care Medicine Indiana University."— Presentation transcript:
Sarcoidosis Overview Kenneth S. Knox, MD Assistant professor of medicine Division of Pulmonary & Critical Care Medicine Indiana University
What is Sarcoidosis ? Nobody knows Systemic inflammatory/immunologic disorder Hallmark is granulomatous (noncaseating) inflammation and a CD4+ T cell alveolitis in the lung Thought to be in response to something –Occupational exposure or Environment –Bacteria or virus –Autoantigen (much like lupus and rheumatoid)
Epidemiology S ** ACCESS trial– A Case Controlled Etiologic Study of Sarcoidosis 1) Rybicki BA, Iannuzzi MC, Frederick MM, Familial aggregation of sarcoidosis. A case-control etiologic study of sarcoidosis (ACCESS). Am J Respir Crit Care Med. 2001 Dec 1;164(11):2085-91.Rybicki BA, Iannuzzi MC, Frederick MM, Familial aggregation of sarcoidosis. A case-control etiologic study of sarcoidosis (ACCESS). Am J Respir Crit Care Med. 2001 Dec 1;164(11):2085-91. 2) Baughman RP, Teirstein AS, Judson MA, Clinical characteristics of patients in a case control study of sarcoidosis. Am J Respir Crit Care Med. 2001 Nov 15;164(10 Pt 1):1885-9.Baughman RP, Teirstein AS, Judson MA, Clinical characteristics of patients in a case control study of sarcoidosis. Am J Respir Crit Care Med. 2001 Nov 15;164(10 Pt 1):1885-9. 3) Freemer M, King TE Jr. The ACCESS study: characterization of sarcoidosis in the United States. Am J Respir Crit Care Med. 2001 Nov 15;164(10 Pt 1):1754-5.Freemer M, King TE Jr. The ACCESS study: characterization of sarcoidosis in the United States. Am J Respir Crit Care Med. 2001 Nov 15;164(10 Pt 1):1754-5. 4) Rossman M, Thompson B, Frederick M,. Sarcoidosis: association with human leukocyte antigen class II amino acid epitopes and interaction with environmental exposures. Chest. 2002 Mar;121(3)supl.Rossman M, Thompson B, Frederick M,. Sarcoidosis: association with human leukocyte antigen class II amino acid epitopes and interaction with environmental exposures. Chest. 2002 Mar;121(3)supl. 5) Pandey JP, Frederick M; ACCESS Research Group. A Case Control Etiologic Study of Sarcoidosis. TNF-alpha, IL1-beta, and immunoglobulin (GM and KM) gene polymorphisms in sarcoidosis. Hum Immunol. 2002 Jun;63(6):485-91.Pandey JP, Frederick M; ACCESS Research Group. A Case Control Etiologic Study of Sarcoidosis. TNF-alpha, IL1-beta, and immunoglobulin (GM and KM) gene polymorphisms in sarcoidosis. Hum Immunol. 2002 Jun;63(6):485-91. 6) Judson MA, Baughman RP, Thompson BW, Two year prognosis of sarcoidosis: the ACCESS experience. Sarcoidosis Vasc Diffuse Lung Dis. 2003 Oct;20(3):204-11.Judson MA, Baughman RP, Thompson BW, Two year prognosis of sarcoidosis: the ACCESS experience. Sarcoidosis Vasc Diffuse Lung Dis. 2003 Oct;20(3):204-11. 7) Rossman MD, Thompson B, Frederick M, HLA-DRB1*1101: a significant risk factor for sarcoidosis in blacks and whites. Am J Hum Genet. 2003 Oct;73(4):720-35.Rossman MD, Thompson B, Frederick M, HLA-DRB1*1101: a significant risk factor for sarcoidosis in blacks and whites. Am J Hum Genet. 2003 Oct;73(4):720-35.
Sarcoidosis- background Second most common lung disease in young adults (second only to asthma) Lifetime risk.85% for US whites Lifetime risk 2.4% for US blacks 21.6 females and 15.3 males per 100,000 per yr ACCESS ACCESS defined, Historical
IU sarcoid data 398 patients with sarcoidosis (Wishard and Clarian visited in past 2 years) Over 700 in database Support group Sarcoidosis and Immunologic lung disease program
Epidemiology Typically 20-40 yo, 35-45 with a third > 50 Women > Men Blacks > Whites 7:1 in U.S.,4:1 in Detroit Familial risk –sibs, aunts, uncles, grandparents OR 5.2-5.8 and parents OR= 3.8, whites > blacks ACCESS defined, Historical
Epidemiology- prognosis Unfavorable prognosis Older (over 40) F Stage II ?, III, IV X-ray Black –pernio (puerto rican), eye, liver, periph nodes, BM Posterior uveitis- Asian Unresponsive to steroid Neuro F, Cardiac- Asian Elevated calcium M Better prognosis Lofgren syndrome -E nodosum F, arthritis, nodes, +/- uveitis Stage 1 X-ray Younger White -calcium, nodosum Anterior uveitis F ACCESS defined, Historical
Environmental Hypothesis (+) Associations Agriculture Insecticides/pesticides Mold/Mildew Musty odors (-) Associations Tobacco Children Cat/Animal dust Feather/down pillows ACCESS defined
Environmental Hypothesis Uncertain Beryllium- similar disease “Clustering” many reports, (ie: navy, Isle of Man) Firefighting- anecdotes School teachers- my experience Geographical (“farther from the equator”) –Seasonal (“cool summer, mild winter”) “springtime dz” –cases reported worldwide. Likely not associated Wood dust and pine pollen Metals Silica Talc Health-care workers Pets
Infection Hypothesis Bacteria –Mycobacteria –Propionibacteria –Borrelia Virus –Epstein-Barr –Human herpesvirus 8 –CMV, Coxsackie B Review: Current Opinion in Pulmonary Medicine 2002,8, 413-476 ATS/ERS/WASOG statement on sarcoidosis: Sarc Vasc Diff Lung Dis 1999,16
Autoimmune Hypothesis You react to “privileged self- antigens” Infection Injury ** Many exposures, infections, and “injury” can be associated with “granulomatous inflammation”
Recent etiologies Associated with therapy “Immune- modulating” HIV reconstitution syndrome –Foulon et al. Sarcoidosis in HIV-infected patients in the era of highly active antiretroviral therapy. Clin Infect Dis. 2004 Feb 1;38(3):418-25. IFN therapy for hepatitis –Pietropaoli A et al. Interferon-alpha therapy associated with the development of sarcoidosis. Chest. 1999 Aug;116(2):569-72.
Genetics Genetic background –Familial risk (monozygotic twin studies, siblings and parents) –Race, ethnicity Genetic background –HLA (DR17, DRB1*1101) –Other polymorphisms (TNF, Ig-KM) –BTNL2 truncating splice site mutation ACCESS defined
Who gets Sarcoidosis ? Infectious Sarcoidosis = ORX Genetic X ?? Environment
Symptoms Nonspecific –Fever, sweats –Weakness, –Weight loss –Aches and pains Psychological issues Organ specific symptoms
Specific Symptoms Lung: cough, short of breath, chest pain Eye: blurred vision, pain, redness Skin: flat rash, nodules, lupus pernio, E. nodosum Heart: palpitations, skipped beats, dizziness, death Central nervous system/nerves: headache, pain, weakness, memory difficulties, vision loss, hormone abnormalities
Specific Symptoms Muscles: pain Bones/joints: arthritis, pain, joint swelling Liver/GI: pain, diarrhea, nausea, jaundice Vocal cords/salivary glands: hoarseness, swelling Kidneys: kidney stones, failure, polyuria if calcium and hormone problems
Laboratory Testing Bloodwork –Blood counts (CBC) Lymphopenia (45%); leukopenia (30%) Anemia up to 20%; low platelets < 2% –Liver (AST, GGT, Alk phos) and kidney (Cr) function, Calcium (Ca) and other chemistries –Proteins (IgG, albumin) –Tests of muscle (CK) and inflammation (ESR,CRP) Urine analysis/collection
More Directed Testing Tuberculin skin test (PPD) Fungal blood work (Histoplasmosis in Indiana) Angiotensin Converting Enzyme (ACE) Lysozyme
Diagnosis- Ocular Eye: anterior or posterior uveitis, mass Testing: Slit-lamp eye exam, MRI Diagnosis: can biopsy lid if small lesions –Reluctant if no visible lesion (yield < 20- 50%) 25% of patients
Diagnosis and Derm Skin: many rashes –Lupus pernio (biopsy) –Nodules, flat patches (biopsy) –Erythema Nodosum (biopsy non-specific) Diagnosis: Appearance can be classic, biopsy to support 20% of patients
Diagnosis- cardiac Heart: dysrhythmia, pericardial, pulm htn if severe, causing shortness of breath Testing: EKG, thallium, echo, gallium, MRI Diagnosis: –Can biopsy heart, but not typical –Presumed if sarcoidosis affecting other organs –“Cold spots” on stress test that improve,MRI 5% symptomatic, 30% incidental
Diagnosis- musculoskeletal Bone: pain, arthritis Testing: X-ray Diagnosis: –Can have classic features < 5% have bone involvement; less than 1% have chronic muscle involvement
IU Liver disease Hepatobiliary disease in sarcoidosis is rarely clinically overt. When present, it can range from asymptomatic liver test abnormalities to cirrhosis. Can be first manifestation of sarcoidosis. Granulomatous hepatitis, with varying degrees of fibrosis, most common pathologic finding. Male gender and splenomegaly are significantly associated with sarcoid-related liver disease. Gender difference persisted after reanalysis with N=340 (Liver test abnormality group, p=0.0006).
Diagnosis of Neurosarcoidosis CNS : headache, memory loss, palsy, weakness, dizziness, visual, stroke Testing: EEG and EMG, muscle/nerve biopsy, MRI brain and spinal cord, CSF ACE Features: can be presenting sign, can occur during course of Rx, spontaneous remission Diagnosis: biopsy CNS or other. Clinical… 5% symptomatic, 15% overall
IU neurosarcoid data 39 with documented neurosarcoidosis –“Neuropathy” most common AFRICAN AMERICAN n=19 CAUCASIAN n=20 Cranial nerve lesions 11 (58%) 7 (35%) Peripheral neuropathy 8 (42.1%)14 (70%) Brain lesions 10 (53%) 7 (35%) Spinal cord lesions 4 (21%) 2 (10%) Brain+Spinal cord (CNS) 14 (74%) 9 (45%) > than 1 part of nervous system 8 (42.1%) 8 (40%)
Pulmonary Diagnosis of Sarcoid Lung: cough, short of breath, chest pain Testing: PFTs, chest x-ray and CT scan Diagnosis: usually requires biopsy –to exclude other things that look like sarcoid (TB, lymphoma, histo, malignancy) –to support the diagnosis of sarcoid The lung and lung lymph nodes are the most common site for biopsy (90% have thoracic at Dx) –Bronchoscopy (BAL, Biopsy), Mediastinoscopy
Lung PFTs Restrictive pattern most common (scarred lung) –Diffusing capacity first, then Lung capacity Can have obstruction (asthma-like) ACCESS >13% Low Oxygen levels at rest, with exercise or sleep
Lung Staging disease by Chest X-ray: Stage 0 Normal (5%, ACCESS 8%) Stage 1 Large chest lymph nodes only (50%,40%) Stage 2 Chest nodes and lung infiltrate (25%,37%) Stage 3 Lung infiltrates only (15%, 10%) Stage 4 Fibrosis (5%, 5%)
Lymphocyte subsets IU clinical BAL Lab TNF IFN
Tissue- granuloma shuffle BEST TBBx Whole LN, chest WORST Peripheral node Skin in non-specific site (Classically, a “Non-necrotizing granuloma without necrosis”) ** Many times supportive evidence and clinical context DDx: TB, Endemic fungal infection, Malignancy, GLUS, Wegner’s, HP foreign body reaction
Six TBB specimens were obtained, as were six EBB samples. For patients with abnormal-appearing airways, four specimens were obtained from the abnormal-appearing airways and two specimens were obtained from the main carina. In patients with normal- appearing airways, four specimens were obtained from a secondary carina and two specimens were obtained from the main carina. EBB findings were positive in 61.8% of patients, while TBB showed nonnecrotizing granulomas in 58.8% of subjects. The addition of EBB increased the yield of FOB by 20.6%. Although EBB findings were more frequently positive in abnormal-appearing airways (p = 0.014), EBB provided diagnostic tissue in 30.0% of patients with normal-appearing endobronchial mucosa. CONCLUSION: EBB has a yield comparable to TBB and can safely increase the diagnostic value of FOB. Pulmonologists should consider routinely performing EBB in cases of suspected sarcoidosis. Endobronchial biopsy for sarcoidosis: a prospective study. Shorr AF, Torrington KG, Hnatiuk OW. Chest. 2001 Jul;120(1):109-14.
Diagnostic material was obtained from 16 of 21 patients with sarcoidosis (76%). In sarcoidosis, TBNA provided the only diagnostic specimen in 13 of 21 patients (62%). CONCLUSION: TBNA performed with a Wang 22-gauge cytology needle is an effective and safe way of obtaining cytologic specimens from intrathoracic lymph nodes and can rapidly provide diagnosis, both in malignant and benign mediastinal diseases. Hopefully, this technique will reduce further need for more invasive surgical procedures. Diagnostic value of transbronchial needle aspiration by Wang 22-gauge cytology needle in intrathoracic lymphadenopathy. Cetinkaya E, Yildiz P, Altin S, Yilmaz V. Chest. 2004 Feb;125(2):527-31.
Treatment options- first line CONSIDER NOT TREATING! –Can wait up to 6 months to see if spontaneous remission occurs (especially pulmonary) –Side effects- weight gain, glucose, cataracts, bone loss, insomnia, infection, ulcer, adrenal –Old dogma- early treatment alters natural course of disease unfavorably…
Early Treatment of Stage II Sarcoidosis Improves 5- Year Pulmonary Function* Anne Pietinalho, MD, PhD; et al. the Finnish Pulmonary Sarcoidosis Study Group† Study objective: To evaluate the 5-year prognosis of patients with stage I and stage II newly detected (< 3 months) pulmonary sarcoidosis treated immediately after diagnosis with prednisolonefor 3 months followed by inhaled budesonide for 15 months. 79 patients with initial stage I disease and 70 patients with stage II disease. Treatment: Oral prednisolone for 3 months followed by inhaled budesonide for 15 months (800mg bid), or placebo tablets followed by placebo inhaler therapy. Thereafter, treatment only on anindividual basis in the case of clinical deterioration. Results: Placebo-treated patients more frequently required treatment with corticosteroids during the 5-year follow-up (p < 0.05). Steroid-treated patients with initial stage II(-III) disease improved more in FVC and DLCO (p < 0.05). No differences in reported adverse events or in SACE, serum calcium, or urinary calcium values were seen. Conclusion: Immediate treatment of pulmonary stage II(-III) sarcoidosis but not stage I disease improved the 5-year prognosis with regard to lung function variables. (CHEST 2002; 121:24–31)
Treatment options- first line Topical steroids as primary therapy MILD DISEASE –Eyedrops –Creams/ointments –Intralesional –Inhaled Alone After oral therapy for maintenance
Treatment options- first line Steroids are the mainstay of treatment –Start 20-40mg prednisone a day, need to follow closely. –May need more or intravenous if severe, difficulty expected, or acute disease –May be able to taper over first 3 months to a lower dose or every other day dosing
Treatment options- second line If prednisone failure, intolerance, or need another controller agent Methotrexate (5-20mg/week) –Liver toxicity, lung toxicity, mouth sores, abortion –Blood counts, Cr, and liver function monthly, biopsy? –Baughman RP et al. Methotrexate is steroid sparing in acute sarcoidosis: results of a double blind, randomized trial. Sarcoidosis Vasc Diffuse Lung Dis. 2000 Mar;17(1):60-6. Azathioprine (Imuran- 200 max per day) –Low blood counts, diarrhea, small increase in malignancy –Blood counts and liver function monthly –Muller-Quernheim et al. Treatment of chronic sarcoidosis with an azathioprine/prednisolone regimen. Eur Respir J. 1999 Nov;14(5):1117-22.
New Treatment options- second line If prednisone failure, intolerance, or need another controller agent Leflunomide (+/- MTX) –Liver toxicity, Blood counts, Cr, and liver function monthly Mycophenolate –Low blood counts, diarrhea, small increase in malignancy –Blood counts, Cr and liver function monthly
Treatment options- second line If prednisone failure, intolerance, or need another agent Hydroxychloroquine- 200mg-400mg per day –Eye, skin, calcium, neuro, occ pulm –Ophthalmology every 6 months –** immunomodulator (Ag processing) Baughman, et al. Seminars in Respiratory Infections;1998 Jones and Callen, J Am Acad Derm; 1990
Toxic, out of favor therapies CSA - Stern BJ et al. Arch Neurol. 1992;49(10):1065-72 –Kidney, CNS, hypertension, hair growth, gingival hypertrophy –Monitor: kidney function, lipids, electrolytes, blood pressure Chlorambucil Cytoxan- IV (neuro, still used) –90% response (after MTX failure) –Lower et al. Arch Intern Med. 1997; 157:1864-68 –Myelodysplasia, low blood counts, bladder, lung toxicity, fetal, hair loss –Blood counts and urinalysis.
Treatment options Antibiotics –Minocycline –Clofazamine Other –Captopril –Allopurinol –Other immunosuppressives Unclear role, adjunctive, third line
Promising therapies Anti-TNF therapy –Thalidomide- skin ( Baughman, Chest; 2002) –Pentoxifylline- trial stopped, too few patients ( Zabel, AJRCCM 1997 ) –Etanercept- no benefit stage II/III pulmonary (Utz, Chest; 2003), little in uveitis (Baughman, WASOG; 2002), OK for skin and arthritis (Khanna, J Rheumatol; 2003) –Infliximab- end of enrollment, pulmonary, promising ( Yee, Ann Int Med; 2001; AJRCCM 2006 ) –Adalimumab
Treatment guided by prognosis Unfavorable prognosis Older (over 40) F Stage II ?, III, IV X-ray Black –pernio (puerto rican), eye, liver, periph nodes, BM Posterior uveitis- Asian Unresponsive to steroid Neuro F, Cardiac- Asian Elevated calcium M Better prognosis Lofgren syndrome -E nodosum F, arthritis, nodes, +/- uveitis Stage 1 X-ray Younger White -calcium, nodosum Anterior uveitis F
Quality of life- Psychosocial Sarcoidosis patients showed a lower overall QOL and general health, and suffered from more fatigue and sleeping problems than the healthy control group The health status of sarcoidosis patients assessed by the Sickness Impact Profile (SIP), was impaired compared to the health status of healthy controls especially in the areas of sleep, ability to work, recreation, and social interactions. Sarcoidosis patients with bodily symptoms suffered from more depressive symptoms