Levy B I, Oliva Y, Martineaud J P
Am J Physiol. 1981 Jun;240(6):H980-3. doi: 10.1152/ajpheart.1981.240.6.H980.
Hand and forearm blood flows were measured in 12 subjects by means of a range-gated Döppler velocimeter, in basal conditions and after inflation (30, 50, 60, 70, and 90 mmHg) of a venous occlusion cuff on the middle part of the forearm. In basal conditions, there were significant decreases in radial, ulnar, and brachial blood flow after cuff inflation (up to -78, -69, and -31%, respectively). Minimal values were reached in less than 7 s. After occlusion of the circulation of the hand, control brachial blood flow was lowered but not significantly affected by venous distension. The results must be considered and accounted where venous occlusion plethysmography is used to measure segmental blood flow.
通过距离选通多普勒测速仪,在基础状态下以及在前臂中部使用静脉阻塞袖带充气(30、50、60、70和90 mmHg)后,对12名受试者的手部和前臂血流进行了测量。在基础状态下,袖带充气后桡动脉、尺动脉和肱动脉血流显著下降(分别高达-78%、-69%和-31%)。在不到7秒内达到最小值。手部循环阻断后,对照肱动脉血流降低,但静脉扩张对其无显著影响。在使用静脉阻塞体积描记法测量节段性血流时,必须考虑并说明这些结果。