Can microvascular damage predict disease severity in patients with systemic sclerosis?

Area of Science:

• Rheumatology
• Dermatology
• Vascular Medicine

Background:

• Systemic sclerosis (SSc) involves fibrosis, microvascular damage, and immune abnormalities.
• Nailfold videocapillaroscopy (NVC) is a key method for detecting microvascular damage in SSc.

Purpose of the Study:

• To investigate the association between NVC findings and disease severity in SSc.
• To evaluate NVC as a prognostic tool for predicting organ involvement and complications.

Main Methods:

• Retrospective study of 86 SSc patients with early NVC.
• Collected data on visceral involvement, NVC patterns, and disease severity using Medsger scale.
• Classified microvascular damage severity into four categories.

Main Results:

• Moderate correlation found between microvascular damage severity and global disease severity (r=0.55), peripheral vascular (r=0.43), and skin involvement (r=0.34).
• Late scleroderma NVC pattern predicted digital ulcers, muscle involvement, calcinosis, and worse global disease severity.
• Multivariate analysis confirmed late NVC pattern as an independent predictor of calcinosis.

Conclusions:

• Worsening NVC patterns in SSc are linked to overall disease severity, vascular, and skin involvement.
• NVC serves as a valuable prognostic tool and potential predictor of systemic visceral involvement in SSc.