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Digital ischemic loss in systemic sclerosis
1Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, CA 94305, USA.
Insights
Digital ischemic loss in systemic sclerosis (SSc) causes significant morbidity. Early evaluation and medical treatment, including prostacyclin therapy, are crucial to prevent digital loss and amputation.
Area of Science:
- Rheumatology
- Vascular Medicine
- Dermatology
Background:
- Digital ischemic loss is a serious complication in systemic sclerosis (SSc).
- It results from microvascular and macrovascular diseases affecting digital arteries, leading to perfusion defects.
- This condition significantly impacts patient morbidity.
Purpose of the Study:
- To summarize current knowledge on risk factors, pathogenesis, evaluation, and treatment of digital ischemic loss in SSc.
- To emphasize the importance of timely intervention.
Main Methods:
- Review of existing literature on digital ischemia in SSc.
- Synthesis of information on pathophysiology, clinical presentation, and management strategies.
Main Results:
- Digital ischemic loss in SSc stems from intimal proliferation and luminal narrowing in small and large digital arteries.
- Critical digital ischemia necessitates immediate clinical evaluation and treatment.
- Intravenous prostacyclin therapy is recommended for hospitalized SSc patients with critical digital ischemia.
Conclusions:
- Prompt medical management, including prostacyclin therapy, is vital for SSc patients with critical digital ischemia.
- Surgical interventions are reserved for refractory cases or those with necrotic tissue.
- Understanding risk factors and pathogenesis aids in effective treatment strategies.
Abstract:
Digital ischemic loss is a cause of significant morbidity in patients with systemic sclerosis (SSc). Microvascular disease with intimal proliferation and luminal narrowing of small digital arteries, as well as macrovascular disease with narrowing or occlusion of larger digital arteries, contribute to the perfusion defects involved in digital ischemic loss. Immediate clinical evaluation and treatment are mandatory at the onset of critical digital ischemia to prevent digital loss. Hospitalization for medical therapies including intravenous prostacyclin therapy should be considered for all SSc patients who present with critical digital ischemia. Surgical interventions are typically reserved for patients who fail medical therapies and for those with late stage, necrotic tissue. This paper summarizes the current knowledge regarding the risk factors, pathogenesis, evaluation, and treatment of digital ischemic loss in SSc.
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