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COMMON RHEUMATIC DISEASES. Dr. Abdullah Al Mazyad Consultant Pediatric Rheumatologist Department of Pediatrics King saud University. Symptoms and Signs of Joint Diseases. Symptoms - Pain - Stiffness - Deformity - Loss of function - Systemic illness Signs - Heat - Redness
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COMMON RHEUMATIC DISEASES Dr. Abdullah Al Mazyad Consultant Pediatric Rheumatologist Department of Pediatrics King saud University
Symptoms and Signs of Joint Diseases Symptoms - Pain - Stiffness - Deformity - Loss of function - Systemic illness Signs - Heat - Redness - Swelling - Loss of movement - Deformity - Tenderness - Abnormal movement - Crepitus - Functional Abnormality • Mostly presentation is non-specific
Juvenile Idiopathic Arthritis General abbreviations: J.C.A. in Europe J.R.A. in U.S. Features: (its mainly a clinical diagnosis by history and examination you must exclude other causes) • Onset under 16 years • Persistent and destructive arthritis in one or more joints as opposed to rheumatic fever (migratory and non-destructive) • Duration chronic - three months or longer (Europe) - six weeks or longer (U.S.) 4. Exclude other defined causes of arthritis in childhood . It’s the most common joint disease in peds.
Pathology Serositis (RA) • Synovitis • Tendenitis • Bursae Serositis of pleura and pericardium Nodules Vasculitis: in the tip of the finger
Juvenile Arthritis with Systemic onset (stills disease) (20% of JA patients)
Juvenile arthritis with polyarticular symmetrical with wrist involvement onset (30% of JA patients)
Always examine the neck joint by asking the patient to stand up and look for bending which reflects limitation of movement.
You put both hands together normally there is no gap, if a gap is present this reflects limitation of movement.
Stunted growth either due to the disease itself or the treatment (steroid)
Narrowing of the joint space due to destruction and erosion.
Juvenile arthritis with pauciarticular (less than 4)onset (50% of JA patients) most common type
SLE RACE can affect any race. JSLE is common throughout the world . 3:1 Incidence rate for black versus white females in USA.
AGE AT ONSET IN JSLE • Rare before 5 years can be found in neonates • Increasingly more common in adolescence commonest from 10-14. • JSLE in the first decade: 3.5 – 15% of all cases • More renal involvement in JSLE • JSLE in the first decade is a more severe disease . Wide variation of presentation could be with thrombocytopenia as the only presentation or skin manifestation alone. Its an autoimmune disease.
Classification criteria of SLE Malar (butterfly) rash Discoid-lupus rash Photosensitivity Oral or nasal mucocutaneous ulcerations Non-erosive arthritis Nephritisb Proteinuria > 0.5 g/day Cellular casts Encephalopathyb Seizures Psychosis Pleuritis or pericarditis Cytopenia Positive immunoserology Antibodies to nDNA specific but not sensitive not used for screening. Antibodies to Sm nuclear antigen Positive LE-cell preparation Biologic false-positive test for syphilis Positive antinuclear antibody test very sensitive in more than 95% of SLE patients used for screening a Four of 11 criteria provide a sensitivity of 96% and a specificity of 96%.
CLINICAL PRESENTATION MUCOCUTANEOUS INVOLVEMENT • Malar erythematous rash: Butterfly distribution. 25% of cases of onset and 50% of cases by 3 years follow-up. • Abrupt onset and usually have systemic disease. • Neonatal Lupus Erythematous: Lesions similar to seborrheic dermatitis, photosensitive and disappear spontaneously in 4-6 months.. In SLE +ve moms therefore you have to screen the mom. • Discoid lupus: Discret, round, erythematous scaly patches with minimal systemic involment
MUCOCUTANEOUS INVOLVEMENT • Oral and nasal ulcerations: Nasal & palatal ulcerations in 50% cases + perforation • Alopecia: Generalized thinning with frontal hair.Britle and kinky changes occur frequently in active disease. • Raynanud’s phenomenon: It may precede the diagnosis by many years. Mostly in the fingers but can affect the tongue.
CARDIOVASCULAR INVOLVEMENT CARDIAC all layers may be involved • Pericarditis • Myocarditis • Endocarditis (Libman-Sacks) • Conduction abnormalities especially in neonates. CORONARY ARTERY DISEASE OTHER VASCULAR MANIFESTATIONS • Raynaud’s phenomenon • Hypertension • Arteritis • Venous disease
VASCULITIS IN SLE • SIZE Small Vessel Vasculitis • CLINICAL PRESENTATION: Lupus Crisis (wide spread vasculitis + polyserositis) Raynaud’s phenomenon Digital involvement Recurrent thrombophlebitis Livedo reticularis
ABNORMALITY Anemia (hematocrit < 30%) Acute hemolytic anemia Leukopenia <2,000 WBC/mm³ <4,500 WBC/mm³ thrombocytopenia <150,000 pts/mm³ <100,000 pts/mm³ PATIENTS % 50 5 10 40 30 5 FREQUENCY OF HEMATOLOGICABNORMALITIES IN CHILDREN WITH SLE AT ONSET
G.I. MANIFESTATIONS • 31% of cases have abdominal pain. • Abnormal esophageal motility. • Ascitis and pertonitis: 8-11%, peritoneal fluid shows high DNA, low component. • Acute pancreatitis: de novo or steroids related. • Mesentric artery thrombosis • Malabsorption • GI vasculitis: Edema, ulceration, gangrene , perforation
NEUROPSYCHIATRIC MANIFESTATIONS • Non-Focal Cerebral Dysfunction (35-60%) organic brain syndrome Psychosis Neurosis • Movement Disorders (10-35%) • Seizures (15-35%) • Focal Deficits (10-35%) • Peripheral Neuropathies (10-25%) • Others: e.g. headache , aseptic meningitis, mysthenia gravis
Prognosis in SLE Survival % without renal invo 90 with renal invo Renal involvement (hematuria or proteinuria) has a poor prognosis. A full work up when symptoms are present. You need to stage the disease even if that required a renal biopsy.
DERMATOMYOSITIS AND POLYMYOSITIS • Symmetrical progressive proximal weakness (difficulty in standing or climbing the stairs) • Muscle biopsy showing inflammatory changes not required for diagnosis usually diagnosed clinically. • Raised muscle enzymes ( CPK,AST,Aldolase) • Electromyography abnormalities (e.g. polyphasic potentials) • Characteristic dermatological changes: heliotrope (eye rash), gottrons rash (red and scaly) over the knuckles. • Treatment is with high doses of long term steroids with clinical and muscle enzymes follow up. In vasculitis we give cytotoxic drugs.
Rarely might cause destructive muscle disease with high grade fever and cachexia on x-ray there will be calcinosis on soft tissue.
HENOCH-SCHONLEIN PURPURA AKA anaphlactoid purpura Purpura 100% Arthritis 71% Gastrointestinal involvement 68% Renal involvement 45% Fever 75% Hypertension 13%
It occurs in certain months of the year (winter) therefore thought to be linked for viral infections. • Arthritis of medium sized joints. Its due to vasculitis. • Abdominal pain is very severe mimicking appendicitis due to vasculitis or iliocecal intussusception requiring barium enema for diagnosis and treatment. • Purpuric rash is an early presentation mostly affecting the lower limbs and buttocks in typical cases. • Fever is mild grade and recurrent. • Renal involvement is usually within the first 6 months of the disease. Its rare and if affected rarely progresses to renal dysfunction. • Diagnosed clinically by Signs and symptoms and exclusion of other diseases. • It’s a self limiting disease except with severe abdominal pain you treat intussusception and give steroid.
KAWASAKI’S DISEASE mucocutaneous lymphadenopathy. Fever 95% Conjuctival congestion 90% Exanthema 90% Oral mucosa involvement 90% Desquamation 90% Cervical lymphadenopathy 75%
For a definitive diagnosis the patients must have 5 of the following 6 criteria: • Spiking fever for at least 5 days (persistent and non intermittent). • Bilateral conjunctival injection with no discharge • Erythematic of palms and sole One orpharyngeal sign Diffuse oropharyngeal Erythema Strawberry tongue Redness, dryness, and fissures of lips. 4.Polymorphous erythematous rash from the face downwards. 5.cervical lymphadenopathy. Uni or bi lateral mostly in the cervical region. 6. One or more of the following signs Indurative edema of hands and feet Desquamation of fingers and toes About 2 weeks after onset Transverse grooves in nail 2 or 3 months after onset
It might affect the coronaries causing aneurysm and dilatation treatment is by IVIG first few weeks of life it’s the drug of the choice after that no benefit you need to give I>V methyl predinisilone. Always keep that on mind.
Absence of rheumatoid factor(seronegative) Involvement of sacroiliac and joints Peripheral arthritis (predominantly lower limb) Enthesopathy Familial clustering Increased incidence of HLA-B27 Common spectrum of extra- articular features (predominantly muco-cutaneous) SPONDYLOARTHROPATHIES
SPONDYLOARTHROPATHIES • Ankylosing spondylitis • Psoriasis • (Whipple’s disease) • Ulcerative colitis • Crohn’s disease • Reiters disease • (Behçets Syndrome) • Reactive arthritis