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Warfarin skin necrosis: local and systemic factors
D D Ad-El1, A Meirovitz, A Weinberg
1Department of Plastic and Reconstructive Surgery, Hadassah University Hospital, Jerusalem, Israel.
British Journal of Plastic Surgery
|September 23, 2000
Summary
Warfarin-induced skin necrosis, a rare complication, presents as painful lesions. This case highlights a 17-year-old with extensive skin and fat necrosis, emphasizing hyper-coagulation and local factors.
Area of Science:
- Dermatology
- Hematology
- Vascular Surgery
Background:
- Warfarin is a common anticoagulant, but can induce skin necrosis in 0.01-0.1% of patients.
- This condition typically affects obese women, presenting as painful lesions that rapidly progress to necrosis.
- Low levels of Protein C or S are often associated with warfarin-induced skin necrosis.
Observation:
- A 17-year-old patient developed iliofemoral deep vein thrombosis post-abortion and was treated with warfarin.
- The patient presented with large hemorrhagic blisters on the affected leg, rapidly progressing to full-thickness skin and fat necrosis.
- Surgical excision and skin grafting were required to manage the necrotic lesions.
Findings:
- This case underscores that warfarin-induced skin necrosis can occur in younger patients, not exclusively obese women.
- The rapid progression to extensive necrosis suggests a significant role for hyper-coagulation tendencies combined with local factors.
- Protein C or S deficiency, while common, may not be the sole etiological factor in all cases.
Implications:
- Early recognition and management are crucial for minimizing tissue loss and improving outcomes in warfarin-induced skin necrosis.
- Further research into the interplay of hyper-coagulation, local factors, and anticoagulant therapy is warranted.
- This case broadens the understanding of patient profiles susceptible to this rare but severe adverse drug reaction.