Couse N F, Delaney C P, Horgan P G, O'Keeffe J, Joyce W P, Gorey T F, Fitzpatrick J M
Surgical Professorial Unit, Mater Misericordiae Hospital, Ireland.
J R Soc Med. 1994 Sep;87(9):511-2. doi: 10.1177/014107689408700907.
Pulse oximetry was used to detect return of pulsatile flow in 27 subjects during reactive hyperaemia following 3 min of total limb ischaemia induced by above knee tourniquet occlusion. Fourteen patients with exercise induced leg pain had 18 symptomatic limbs tested. Thirteen controls had 25 limbs tested. Return of pulsatile flow during reactive hyperaemia occurred within 20 s of tourniquet release in the 25 control limbs which was then regarded as normal. The mean time for return of pulsatile flow in 18 symptomatic limbs was 53 +/- 37 s (P < 0.05 versus controls). Three limbs had a normal value, two of which did not have peripheral vascular disease. Pulse oximetry correctly identified all 25 asymptomatic limbs and 15 of 16 patients with claudication secondary to peripheral vascular disease (PVD). This modification of the reactive hyperaemia test using the pulse oximeter is simple and quick to perform. It has potential as a non-invasive screening test for PVD, suitable for outpatient assessment.
采用脉搏血氧饱和度测定法，在通过大腿上止血带阻断导致下肢完全缺血3分钟后的反应性充血期间，检测了27名受试者搏动血流的恢复情况。对14例运动诱发腿痛的患者的18条有症状肢体进行了检测。13名对照者的25条肢体接受了检测。在25条对照肢体中，反应性充血期间搏动血流在止血带松开后20秒内恢复，随后被视为正常。18条有症状肢体搏动血流恢复的平均时间为53±37秒（与对照组相比，P<0.05）。3条肢体值正常，其中2条没有外周血管疾病。脉搏血氧饱和度测定法正确识别了所有25条无症状肢体以及16例因外周血管疾病（PVD）导致间歇性跛行的患者中的15例。这种使用脉搏血氧仪的反应性充血试验改良方法操作简单、快捷。它有潜力作为一种用于PVD的非侵入性筛查试验，适用于门诊评估。
