Abstract
Five patients with advanced arteriosclerosis obliterans of the lower extremities, as evidenced by resting pain, ischæmic ulcers, and focal necrosis, received intra-arterial infusions of prostacyclin at doses of 5-10 ng/kg/min for 72 h. Within 2 days of termination of the infusion, pain at rest had disappeared in all patients. In three of the five, the necrosis had completely regressed and the ischæmic ulcers healed within 2 months. The other two patients showed considerable improvement. Prostacyclin therapy was not associated with changes in the radiographic appearance of the major blood-vessels. However, muscle blood-flow, as measured by xenon-133 clearance, was significantly in- creased both during prostacyclin infusion and for the 6 weeks of measurement after its termination.
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