Subcutaneous Ancrod Therapy in Peripheral Arterial Disease: Improvement in Blood Viscosity and Nutritional Blood Flow

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Abstract
Nine patients with extensive peripheral arterial disease were treated with subcutaneous injections of ancrod (Arvin) for 10 to 21 days. Reduction in plasma fibrinogen was associated with a sustained reduction in plasma and blood viscosity, and a sustained increase in nutritional skin blood flow, measured by a Xenon-133 clearance technique (P less than 0.001). These findings may be relevant to the therapeutic effect of ancrod in ischemic rest pain.