Kritsch D, Hutter H P, Hirschl M, Katzenschlager R
Department of Angiology, Hanusch Hospital, Vienna, Austria.
Int Angiol. 2006 Sep;25(3):327-9.
Persistent sciatic artery (PSA) is a rarely seen variation of the lower limb vessels. Anatomically the PSA is the continuation of internal iliac arteries. It follows the sciatic nerve from the sciatic foramen to the level of the knee. We report our experience with conservative therapy in a patient with complete occlusion of a PSA. A 54-year-old man with typical symptoms of intermittent claudication on the left limb was referred to our Department. After clinical examination Doppler and duplex sonography were performed. Angiography showed bilateral PSA. On the left side the PSA was occluded. The patient received 20 intravenous courses of prostaglandin E1 for 4 weeks, followed by oral anticoagulation with phenprocoumon for life (INR: 2.5-3.5). After 3 years therapy he does not show any typical symptoms of intermittent claudication or limb ischemia. This case shows that conservative therapy may be effective. However, it has to be emphasised that this approach requires frequent clinical and duplex sonography follow-up every 3 to 6 months with oral anticoagulation.
持续性坐骨动脉（PSA）是一种罕见的下肢血管变异。从解剖学上讲，PSA是髂内动脉的延续。它从坐骨孔沿着坐骨神经走行至膝关节水平。我们报告了对一名PSA完全闭塞患者进行保守治疗的经验。一名54岁男性因左下肢间歇性跛行的典型症状转诊至我科。临床检查后进行了多普勒和双功超声检查。血管造影显示双侧PSA。左侧PSA闭塞。患者接受了20个疗程的前列腺素E1静脉注射，为期4周，随后终身口服苯丙香豆素进行抗凝治疗（国际标准化比值：2.5 - 3.5）。经过3年治疗，他未表现出任何间歇性跛行或肢体缺血的典型症状。该病例表明保守治疗可能有效。然而，必须强调的是，这种方法需要每3至6个月进行频繁的临床和双功超声随访，并进行口服抗凝治疗。
