Approach to Systemic Sclerosis
Clinical evaluation, diagnosis, and
management
Learning Objectives
• Understand the spectrum of systemic sclerosis
• Develop a structured diagnostic approach
• Recognize organ involvement early
• Plan organ-based management
What is Systemic Sclerosis?
• Chronic autoimmune connective tissue
disease
• Characterized by vasculopathy, fibrosis,
autoimmunity
• Skin and internal organ involvement
Terminology
• Scleroderma = hard skin
• Systemic sclerosis = multisystem disease
• Localized vs systemic forms
Epidemiology
• Female predominance (4–5:1)
• Onset: 30–50 years
• More severe disease in males
Etiopathogenesis Overview
• Endothelial injury
• Immune activation
• Fibroblast dysfunction and fibrosis
Genetic and Environmental Factors
• HLA associations
• Silica, organic solvents
• Smoking as a risk factor
Disease Classification
• Limited cutaneous systemic sclerosis
• Diffuse cutaneous systemic sclerosis
• Sine scleroderma
Limited Cutaneous SSc
• Skin involvement distal to elbows/knees
• CREST features
• Late pulmonary hypertension
Diffuse Cutaneous SSc
• Proximal skin involvement
• Early visceral disease
• Higher renal crisis risk
Sine Scleroderma
• No skin thickening
• Internal organ involvement present
• Diagnosed by antibodies and organ disease
Clinical Approach: Overview
• Detailed history
• Focused physical examination
• Targeted investigations
• Organ-specific assessment
Key History Points
• Raynaud phenomenon
• Skin tightness or swelling
• Dyspnea, dysphagia, chest pain
Raynaud Phenomenon
• Often first manifestation
• Triphasic color change
• Indicator of vasculopathy
Skin Symptoms
• Puffy fingers
• Skin tightening
• Reduced mobility
Systemic Symptoms
• Fatigue
• Weight loss
• Myalgia and arthralgia
Physical Examination: Skin
• Skin thickness scoring
• Sclerodactyly
• Digital ulcers
Modified Rodnan Skin Score
• 17 body areas assessed
• Score 0–3 per area
• Used for severity and follow-up
Face and Oral Findings
• Mask-like facies
• Microstomia
• Telangiectasia
Nailfold Capillaroscopy
• Dilated capillaries
• Capillary dropout
• Helps early diagnosis
Musculoskeletal Assessment
• Joint contractures
• Tendon friction rubs
• Inflammatory arthritis
Gastrointestinal Involvement
• Esophageal dysmotility
• GERD
• Malabsorption
Pulmonary Involvement
• Interstitial lung disease
• Pulmonary arterial hypertension
• Leading cause of mortality
Cardiac Involvement
• Arrhythmias
• Myocardial fibrosis
• Pericardial effusion
Renal Involvement
• Scleroderma renal crisis
• Acute hypertension
• Rapid renal failure
Approach to Investigations
• Autoantibody testing
• Imaging studies
• Functional assessments
Autoantibody Profile
• ANA positive in most patients
• Anti-centromere
• Anti–Scl-70
• Anti–RNA polymerase III
Significance of Autoantibodies
• Disease subtype prediction
• Organ involvement risk
• Prognostic implications
Baseline Laboratory Tests
• CBC, ESR, CRP
• Renal function tests
• Urinalysis
Pulmonary Evaluation
• HRCT chest
• Pulmonary function tests
• DLCO measurement
Cardiac Evaluation
• ECG
• Echocardiography
• Cardiac MRI if needed
Renal Monitoring
• Blood pressure monitoring
• Serum creatinine
• Urine protein
Differential Diagnosis
• Mixed connective tissue disease
• Dermatomyositis
• Eosinophilic fasciitis
When to Suspect Early SSc
• Raynaud with positive ANA
• Abnormal nailfold capillaries
• Puffy fingers
Principles of Management
• No curative therapy
• Early detection of organ disease
• Symptom and organ-based treatment
Management of Raynaud
Phenomenon
• Avoid cold exposure
• Calcium channel blockers
• PDE-5 inhibitors
Skin Disease Management
• Methotrexate
• Mycophenolate mofetil
• Physical therapy
ILD Management
• Mycophenolate mofetil
• Cyclophosphamide
• Antifibrotic agents
PAH Management
• Endothelin receptor antagonists
• PDE-5 inhibitors
• Prostacyclin analogues
Renal Crisis Management
• Immediate ACE inhibitors
• Avoid high-dose steroids
• Close BP monitoring
Multidisciplinary Care
• Rheumatology
• Pulmonology
• Cardiology and nephrology
Monitoring and Follow-Up
• Regular organ screening
• Assess treatment response
• Early detection of complications
Prognostic Factors
• Extent of skin disease
• Lung and heart involvement
• Autoantibody profile
Key Take-Home Messages
• Early recognition is crucial
• Systematic organ-based approach needed
• Regular monitoring improves outcomes

Approach_to_Systemic_Sclerosis_50_Slides.pptx