Raynaud's phenomenon and digital ulceration in systemic sclerosis

Area of Science:

• Vascular Medicine
• Rheumatology
• Immunology

Background:

• Systemic sclerosis (SSc) is a vascular disease driven by immune-mediated endothelial injury and obliterative microangiopathy.
• Raynaud's phenomenon (RP) and digital ulcers (DU) are common clinical manifestations of SSc vasculopathy.
• Digital ulcers (DU) result from severe tissue hypoxia and irreversible capillary loss, beyond simple vasospasm seen in RP.

Purpose of the Study:

• To discuss the burden, aetiopathogenesis, assessment, and management of SSc-related RP and DU.
• To highlight practical considerations for managing digital vascular complications in clinical practice.
• To review recent clinical guidelines and therapeutic rationale for SSc digital vasculopathy management.

Main Methods:

• Review of existing literature and clinical guidelines on SSc vascular complications.
• Discussion of aetiopathogenesis, clinical presentation, and assessment strategies.
• Analysis of management approaches, including evidence for licensed and unlicensed therapies.

Main Results:

• SSc vasculopathy is characterized by progressive microangiopathy, leading to RP and DU.
• DU development is linked to protracted tissue hypoxia and irreversible capillary loss.
• Management strategies are guided by clinical guidelines, addressing complexities of SSc digital vasculopathy.

Conclusions:

• Effective management of SSc-RP and SSc-DU requires understanding their complex aetiopathogenesis and clinical presentation.
• Practical assessment and management are crucial for addressing digital vascular complications in SSc patients.
• Evidence-based guidelines, including considerations for off-label therapies, inform clinical practice for SSc-related digital vasculopathy.