van den Broek T A, Dwars B J, Rauwerda J A, Bakker F C
Dept. of Surgery, Free University Hospital, Amsterdam, The Netherlands.
J Vasc Surg. 1988 Jul;8(1):10-3. doi: 10.1067/mva.1988.avs0080010.
In a prospective study 37 patients who required amputations of the leg were studied with a new technique: segmental photoplethysmographic skin perfusion pressures. The decision to amputate was made by a vascular surgeon in a traditional manner, with the aid of clinical criteria. The simple method of determining skin perfusion pressures with photoplethysmography is described; 273 measurements were performed. The technique proved to be highly correlated (r = 0.88) with wound healing after amputation, at a separating value of 21 mm Hg (p = 0.0001). The study suggests that the value of this noninvasive method will be to enable the surgeon to amputate at a lower level and to diminish complications and failure of rehabilitation.
在一项前瞻性研究中，采用一种新技术对37例需要截肢的患者进行了研究：节段性光电容积描记法测量皮肤灌注压。截肢的决定由血管外科医生根据临床标准以传统方式做出。文中描述了用光电容积描记法测定皮肤灌注压的简单方法；共进行了273次测量。结果证明，该技术与截肢术后伤口愈合高度相关（r = 0.88），分界值为21毫米汞柱（p = 0.0001）。该研究表明，这种非侵入性方法的价值在于能够使外科医生在更低平面进行截肢，并减少并发症和康复失败的情况。
