Systemic sclerosis & Raynaud's

Longitudinal ultrasound assesment of skeletal muscle ın systemic sclerosis: association with disease activity and severity

Rheumatology (Oxford)Published Longitudinal study

Authors' conclusion

Longitudinal ultrasound assessment effectively reflects progressive reduction in muscle thickness in SSc, correlating with disease activity and severity. These findings highlight ultrasound as a practical, non-invasive tool for early detection and monitoring, potentially capturing subclinical changes, specifically a decrease in muscle thickness, in SSc.

Study context

Population
Patients with systemic sclerosis (SSc), muscle thickness of biceps brachii, triceps brachii, medial gastrocnemius and rectus femoris measured by ultrasound at 0, 6 and 12 months
Participants
52 SSc patients
Outcome
Change in gastrocnemius muscle thickness vs disease activity
Follow-up
Initial 6-month period

Main finding

As reported in the abstract

Correlation coefficient r (significant inverse correlation), p = 0.026

−0.36

Observational data: associations, not effects.

Further findings

Difference in modified Rodnan skin score (mRSS) vs difference in biceps brachii muscle thickness · between baseline and 6 months

Correlation coefficient r, p < 0.05
−0.33

Muscle thickness and severity scores

Decreasing muscle thickness paralleled increasing severity scores

ROC analysis for gastrocnemius muscle

Moderate discriminative performance for detecting clinically relevant muscle changes

Original publication

Longitudinal ultrasound assesment of skeletal muscle ın systemic sclerosis: association with disease activity and severity. Rheumatology (Oxford). Published 28 October 2026. doi:10.1093/rheumatology/keag601

Composed by AI from the published abstract and checked against it. How Briefs are made →

Get them every week

New studies on this topic in My Week and in your Monday e-mail.

We e-mail you a sign-in link and a code. No password, no spam.