Abramowitz H B, Queral L A, Finn W R, Nora P F, Peterson L K, Bergan J J, Yao J S
Surgery. 1979 Sep;86(3):434-41.
In an attempt to develop a noninvasive test to assess objectively the magnitude of venous valvular dysfunction in pathologic states, photoplethysmography (PPG) was compared to venous pressure in the saphenous vein at the ankle. Simultaneous venous pressure and PPG recordings were taken before, during, and after exercise with subjects in the sitting position. In a total of 338 paired measurements in 24 normal, 25 postphlebitic, and 14 varicose limbs, PPG and venous pressure tracings appeared to be identical; data points had a correlation coefficient of great significance (r = 0.898). Postexercise recovery times clearly separated the normal from the postphlebitic limbs. Varicose limbs were assessed accurately regarding results of proposed surgery using an above-knee tourniquet. It appears that the PPG evaluation provides information comparable to venous pressure studies and does so more quickly and noninvasively. The test holds promise in measuring results of direct venous reconstructive surgery as well as in venectomy procedures.
为了开发一种非侵入性检测方法来客观评估病理状态下静脉瓣膜功能不全的程度，将光电容积描记法（PPG）与踝部大隐静脉的静脉压力进行了比较。让受试者坐在座位上，在运动前、运动期间和运动后同时记录静脉压力和PPG。在对24条正常肢体、25条静脉炎后肢体和14条静脉曲张肢体进行的总共338次配对测量中，PPG和静脉压力曲线似乎是相同的；数据点的相关系数具有高度显著性（r = 0.898）。运动后恢复时间清楚地将正常肢体与静脉炎后肢体区分开来。使用大腿上止血带，对静脉曲张肢体拟行手术的结果进行了准确评估。似乎PPG评估提供了与静脉压力研究相当的信息，而且速度更快且是非侵入性的。该检测方法在测量直接静脉重建手术以及静脉切除术的结果方面具有前景。
