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Rheumatic Diseases in Children. Objectives. Review Rheumatic Diseases Discuss the medications utilized to treat Rheumatic Conditions. By the end of this presentation you will:. Antibodies Lymphocytes T-cells B-cells. Phagocytoes Natural killer cells Granulocytes macrophils.
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Objectives Review Rheumatic Diseases Discuss the medications utilized to treat Rheumatic Conditions By the end of this presentation you will:
Antibodies Lymphocytes T-cells B-cells Phagocytoes Natural killer cells Granulocytes macrophils Skin, mucus membranes, enzymes Natural microbial flora Complement proteins The Immune System101 B and T cells and their products are the target for many of the treatments for Autoimmune diseases seen in Rheumatology 3rd line 2nd line 1st line
The Factors of Autoimmune Disease Genetic predisposition Environment Timing
Rheumatic Conditions Systemic Lupus Erythematosus (SLE) Juvenile Arthritis Uveitis Linear Scleroderma Systemic Sclerosis Juvenile Dermatomyositis Vasculities
Juvenile Arthritis • 85,0000-115,000 children in the United States have Juvenile Arthritis • Most Common Rheumatic Disorder in Children • Diagnostic Criteria • Age at onset <16 • Arthritis in one or more joints • Duration of disease 3 months or longer (6weeks for ACR)
Criteria Juvenile Arthritis Types defined by characteristics of disease Pauciarticular (Oligoarthritis for JIA) <5 joints Polyarticular: >5 joints Systemic:arthritis with characteristic fever (rash) Juvenile Psoriatic arthritis Spondyloarthropathies Juvenile Anklylosing Spondyloarthritis Enthesitis-related arthritis
Clinical Manifestations Juvenile Arthritis Joint specific Morning stiffness Pain on motion Loss of motion Tenosynovitis Joint inflammation: Swelling, redness, heat, pain, loss of function Extra-articular Abnormalities in growth and development Osteopenia Organ-Specific Nodules *** Systemic or rare involvement=vasculitis, cardiac disease, pleuropulmonary disease, GI tract, Lympadenopathy and splenomegaly, hepatosplenomegaly, neurologic, renal
Juvenile Arthritisprior to the age of methotrexate and biologics
Treatment JA NSAIDSIntra-articular injection: Ibuprofen Aristospan Naprosyn Diclofenac GlucocorticosteroidsDMARDS Prednisone Methotrexate Methylprednisolone Sulfasalazine Leflunomide Biologic Response Modrifiers Etanercept(Enbrel); Adalimumab (Humira) Infliximab (Remicade); Anakinra (Kineret)/systemic Abatacept (Orencia) Rituximab(Rituxan) Tocilizumab(in study)
Laboratory Studies No laboratory testing is diagnostic for JA Used for evidence of inflammation, determine pathogenesis, support diagnosis, and monitor treatment
Laboratory Studies Antinuclear antibody (ANA) Pauciarticular disease (+) demonstrates increase risk of uveitis Rheumatoid Factor More indicative erosive disease 3% (Cassidy, 2005) Sedimentation rate (ESR) Non specific measure of inflammation C reactive protein (CRP) more reliable monitor of inflammatory response CBC Chem 14 monitoring potential side effects NSAIDS and methotrexate increased LFT’s
UVEITIS Inflammation of uveal tract Iris, ciliary body, and/or choroid Asymptomatic until very late stages Uveitis is often progressive & difficult to control Possible Symptoms: synichiae, reduced vision, glaucoma, increased inflammation in the other eye, and blindness Slit Lamp examination for diagnosis and follow-up
Treatment Uveitis Opthalmology: Topical steroid drops Systemic Treatment DMARD Methotrexate Corticosteroids Prednisone Methylprednisonlone Biologic Response Modifiers Infliximab (Remicade) Etanercept(Enbrel); Adalimumab (Humira) Diclizumab (Zenapak)
Systemic Lupus Erythematosus (SLE) Incidence: 0.5 -0.6/100,000 children Prevalence: 5-10,000 children in the USA Onset: 15% in childhood Female to Male ratio Higher female onset post pubescent Equal pre pubescent Affects multiple systems Characterized by inflammation of the small blood vessels and connective tissue
Diagnosis of SLE 4 out of 11 criteria Malar rash Discoid rash Photosensitive rash Mucosal ulcers Serositis Arthritis Renal disease/cellular casts CNS: Seizure or psychosis Hematology: Leukopenia <4000/cubic mm; lymphopenia < 1500/cubic mm; thrombocytopenia <100,000/mm3 Immunoserology: anti double stranded DNA (anti ds DNA), anti Smith - specific marker for active SLE, false + (VDRL) Positive AntiNuclear Antibody test (ANA) (95%, typical pattern is homogeneous)
SLE rashes Upper Malar Lower left Discoid Lower right Mixed rashes
Laboratory Studies: Diagnostic Cytopenia Thrombocytopenia Anemia: hemolytic (Coombs +) Leucopenia Positive Immunoserology dsDNA: (+) presence of antibodies Sm nuclear antigen: (+) presence of antibodies Antiphospholipid antibodies: (+) risk of clotting VDRL (syphilis) false (+) Antinuclear antibody (ANA) antibody most commonly found in SLE
Laboratory Studies: Monitoring CBC Chem 14 Antinuclear Antibody dsDNA: Complement 3 and 4 low in most active SLE disease, used for tracking not diagnostic Urinalysis with micro initial indication of renal disease usually shows lots of blood, protein and high specific gravity!!! Spot urine protein and creatinine monitoring of renal disease (UP/UC ratio)
Treatment SLE Plaquenil Aspirin NSAIDS Prednisone Methotrexate Imuran Rituximab IVIG Orencia Cellcept Cytoxan IV Daily Cytoxan Plasmapheresis Nitrogen Mustard Campath BMT
Features of Juvenile Dermatomyositis Gottran’s Papules Heliotrope Rash
Juvenile Dermatomyositis: Radiographical features Calcinosis Thigh of 12yr old male Inflammation is bright white
Laboratory JDMS CBC Chem 14: monitoring medication side effects Aldolase: elevated with muscle inflammation: monitoring and confirmation not diagnostic Neopterin: same as aldolase CPK: same as aldolase and Neopterin ESR: inflammation unspecified location Urinalysis
Treatment Dermatomyositis Stem Cell Transplant Campath Biologics Infliximab Etanercept Abatacept Methotrexate Glucocorticosteroids Cyclosporin Hydroxychloroquine IVIG Cyclophosphamide
Linear Scleroderma 11 yr old girl 10 year old girl Diagnosis age 4 Coupe de Sabre
Systemic Sclerosis Children • 0.2-0.9% of the Major Mixed Connective Tissue Disorders • Prevalence: 0.8/100,000 children in the USA • Onset: 3 % in childhood • Female to Male ratio: 1:1= <8yrs old and 3:1 = >8yrs old • Average age onset in childhood: undefined • Affects multiple systems connective tissue disorder • Characterized by thickening and hardening of the skin in conjunction with fibrous and degeneration of multiple organs • Cassidy, 2005
Systemic Sclerosis: Clinical Manifestations Raynaud’s phenomenon Skin changes Sclerosis, edema, atrophy, Telangiectases, calcinosis Sclerodactyly Musculoskeletal Disease estimated 35% Morning stiffness, joint pains, contractures, tendon tightening Gastrointestinal Disease 25% Ulcerations of the mouth Digestive problems Kidneys high blood pressure kidney failure Heart and lung arrhythmias, heat failure scaring of the lung tissue
Scleroderma: Acrolysis and calcinosis Unaffected
Scleroderma Renal arteriogram: Left is normal Right is renal insufficiency Pulmonary x-ray Interstitial Fibrosis
Laboratory Scleroderma CBC Chem. 14 Urinalysis SCL70 antibody (diagnostic for SSc <30% of children, >70% in adults)
Treatment Scleroderma Stem Cell Transplant Campath Mycophenolate Mofetil IVIG Methotrexate Cyclosporin Hydroxychloroquine Glucocorticosteroids Cyclophosphamide
Classification of Vasculitides Small Vessel Vasculitis ANCA associated microscopic polyangitis; Wegener’s granulomatosis; Churg-Strauss Syndrome; Drug induced Immune complex Henoch-Schonleinpurpura; (SLE,JIA, Sjogrens); Bechets; Drug associated; Infection associated Paraneoplastic lymphoproliferativeneoplams induced, myeloproliferative neoplasm induced, carcinoma induced Inflammatory Bowl Disease (IBD)
Classification of Vasculitides Medium Vessel Vasculitides Polyarteritis nodosa Kawasaki disease Large Vessel Vasculitides Giant Cell arteritis Takayasus’s arterititis
Wegener’s Granulomatosis • Prevalence: 0.1/100,000 children • Onset: 3 % in childhood • Female to Male ratio: undefined • Average age onset in childhood: 15.4 • Characterized by granulomatous vasculitis in the upper and lower respiratory tracks • Criteria for diagnosis: 2 of 4 must be present • Nasal of Oral Inflammation • Abnormal appearing chest radiograph • Abnormal urinary sediment • Granulomatous inflammation • Cassidy, 2005
Treatment Wegener’s Granulomatosis Cyclophosphamide IVIG Glucocorticosteroids Methotrexate
Takayasu’sArteritis • Most common in young women of Japanese origin • Classification criteria for diagnosis • Sub clavian or aortic bruit • Decreased brachial artery pulse • Blood pressure difference of >10mm between arms • Claudication of extremities • Arteriographic evidence of narrowing or occlusion of aorta, its primary branches or large arteries in the proximal, upper, or lower extremities • Cassidy, 2005
Treatment Takayasu’sArteritis Cyclophosphamide Methotrexate Glucocorticosteroids Infliximab