How is mRSS calculated in systemic sclerosis?

mRSS assesses skin thickness at 17 body sites scored 0-3 (0=normal, 1=mild, 2=moderate, 3=severe); maximum total 51; significant increase ≥3-5 points; dcSSc typically has mRSS >15; lcSSc often ≤10.

What mRSS change is clinically significant?

mRSS change ≥3-5 units on 0-51 scale is considered minimal clinically important difference; significant spontaneous fluctuation occurs in dcSSc; mRSS peak at 2-4 years after onset, then slow improvement in most dcSSc.

What ILD screening is recommended in SSc?

Baseline HRCT chest and PFT (FVC, DLCO) in all SSc; high-risk features: anti-Scl-70 antibody, dcSSc, low DLCO, desaturation on walk test; nintedanib approved for SSc-ILD; mycophenolate mofetil as anchor.

What PH screening protocol is recommended in SSc?

Annual echocardiogram and PFT; DETECT algorithm uses 6 variables (DLCO, forced vital capacity, N-terminal pro-BNP, urate, right axis deviation, telangiectasia) to guide right heart catheterization.

Which SSc autoantibodies predict different phenotypes?

Anti-centromere: lcSSc, PH risk, low ILD risk; Anti-Scl-70 (anti-topoisomerase I): dcSSc, high ILD risk; Anti-RNA polymerase III: dcSSc, renal crisis risk; Anti-Th/To: lcSSc, ILD+PH risk.

Systemic Sclerosis Skin Thickness (mRSS) and EUSTAR Severity Score

Calculates modified Rodnan Skin Score (mRSS) for systemic sclerosis, EUSTAR-derived early mortality risk, pulmonary hypertension screening parameters, and ILD progression risk stratification.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.

How to Use

Enter the values for the scenario you are assessing. Calculates modified Rodnan Skin Score (mRSS) for systemic sclerosis, EUSTAR-derived early mortality risk, pulmonary hypertension screening parameters, and ILD progression risk stratification. Use the ssc mrss score result to inform your calculation.

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