Moore M R, Garfin S R, Hargens A R
Division of Orthopaedics and Rehabilitation, University of California, San Diego.
J Hand Surg Am. 1987 Nov;12(6):1006-11. doi: 10.1016/s0363-5023(87)80098-9.
Previous recommendations for use of pneumatic tourniquets in extremity surgery suggest parameters for maximum pressure and time limits without regard for optimum cuff width. Wide cuffs produce lower readings of blood pressure relative to narrow cuffs, presumably because the wide cuffs arrest flow at lower inflation pressure. We investigated three tourniquet sizes and the inflation pressure required to eliminate flow to the upper extremity using an ultrasonic Doppler device to monitor blood flow in the radial artery of ten normal subjects (arm circumference 24.5 to 37 cm). Arterial flow was always eliminated at the lowest pressure using the widest tourniquet cuff. Significantly lower inflation pressures will eliminate blood flow if wider tourniquet cuffs are used; therefore, use of a wider tourniquet cuff may result in a reduced incidence of tourniquet complications.
先前关于在肢体手术中使用气动止血带的建议提出了最大压力和时间限制的参数，但未考虑最佳袖带宽度。宽袖带相对于窄袖带会产生较低的血压读数，可能是因为宽袖带在较低的充气压力下就能阻止血流。我们研究了三种止血带尺寸以及使用超声多普勒装置监测十名正常受试者（上臂周长24.5至37厘米）桡动脉血流时消除上肢血流所需的充气压力。使用最宽的止血带袖带时，总是在最低压力下就能消除动脉血流。如果使用更宽的止血带袖带，显著更低的充气压力就能消除血流；因此，使用更宽的止血带袖带可能会降低止血带并发症的发生率。
