Groothuis Jan T, van Vliet Linda, Kooijman Miriam, Hopman Maria T E
Department of Physiology, University Medical Centre Nijmegen, 6500 HB Nijmegen, The Netherlands.
J Appl Physiol (1985). 2003 Jul;95(1):342-7. doi: 10.1152/japplphysiol.00022.2003. Epub 2003 Apr 4.
Venous occlusion strain gauge plethysmography (VOP) is based on the assumption that the veins are occluded and arterial inflow is undisturbed by the venous cuff pressure. Literature is not clear concerning the pressure that should be used. The purpose of this study was to determine the optimal venous occlusion pressure at which the highest arterial inflow is achieved in the forearm, calf, and leg by using VOP. We hypothesized that, for each limb segment, an optimal (range of) venous cuff pressure can be determined. Arterial inflow in each limb segment was measured in nine healthy individuals by VOP by using pressures ranging from 10 mmHg up to diastolic blood pressure. Arterial inflows were similar at cuff pressures between 30 and 60 mmHg for the forearm, leg, and calf. Arterial inflow in the forearm was significantly lower at 10 mmHg compared with the other cuff pressures. In addition, arterial inflows at 20 mmHg tended to be lower in each limb segment than flow at higher cuff pressures. In conclusion, no single optimum venous cuff pressure, at which a highest arterial inflow is achieved, exists, but rather a range of optimum cuff pressures leading to a similar arterial inflow. Venous cuff pressures ranging from 30 mmHg up to diastolic blood pressure are recommended to measure arterial inflow by VOP.
静脉阻塞应变计体积描记法（VOP）基于这样一种假设，即静脉被阻塞且动脉血流不受静脉袖带压力干扰。关于应使用的压力，文献尚无定论。本研究的目的是通过VOP确定在前臂、小腿和腿部能实现最高动脉血流的最佳静脉阻塞压力。我们假设，对于每个肢体节段，都可以确定一个最佳（范围的）静脉袖带压力。通过VOP对9名健康个体使用从10 mmHg到舒张压的压力测量每个肢体节段的动脉血流。在前臂、腿部和小腿中，袖带压力在30至60 mmHg之间时动脉血流相似。与其他袖带压力相比，10 mmHg时前臂的动脉血流显著更低。此外，每个肢体节段在20 mmHg时的动脉血流往往低于较高袖带压力时的血流。总之，不存在能实现最高动脉血流的单一最佳静脉袖带压力，而是存在一系列导致相似动脉血流的最佳袖带压力范围。建议使用30 mmHg至舒张压范围内的静脉袖带压力通过VOP测量动脉血流。
