Fronek A, Coel M, Bernstein E F
Surgery. 1977 Apr;81(4):376-81.
A simple test is described to evaluate limb blood supply. The technique utilizes the delayed reappearance of the volume pulse after transient arterial occlusion. As monitored from the toe by a mercury-in rubber gauge, pulse reappearance (PRT) was instantaneous (less than one second) and the 50 percent of control amplitude reappearance time (PRT/2) was 3.4 +/- 0.8 seconds in 22 control subjects. A significant delay of the PRT and especially of PRT/2 was found in 60 patients with angiographically documented ischemic disease of the lower extremities. The delay was correlated closely with the severity of the disease: the mean PRT/2 for single level arterial disease (aortoiliac, femoropopliteal, posterior tibial, or anterior tibial artery obstruction) was approximately 25 seconds, and the mean PRT/2 associated with multilevel occlusion was 71 seconds. Since the technique is very simple, it may be used as a quick screening and follow-up procedure to detect the presence and over-all severity of peripheral arterial occlusive disease.
本文描述了一种评估肢体血液供应的简单测试方法。该技术利用了短暂动脉闭塞后容积脉搏延迟重现的现象。通过橡胶汞柱式压力计从脚趾监测，22名对照受试者的脉搏重现时间（PRT）即刻出现（小于1秒），控制振幅重现时间的50%（PRT/2）为3.4±0.8秒。在60例经血管造影证实患有下肢缺血性疾病的患者中，发现PRT尤其是PRT/2有明显延迟。这种延迟与疾病的严重程度密切相关：单水平动脉疾病（腹主动脉-髂动脉、股动脉-腘动脉、胫后动脉或胫前动脉阻塞）的平均PRT/2约为25秒，与多水平闭塞相关的平均PRT/2为71秒。由于该技术非常简单，它可作为一种快速筛查和随访程序，用于检测外周动脉闭塞性疾病的存在及其总体严重程度。
