Rorabeck C H
J Trauma. 1980 Apr;20(4):280-6. doi: 10.1097/00005373-198004000-00002.
This experimental investigation has demonstrated that an inflated pneumatic tourniquet causes slowing in conduction velocity of the sicatic nerve. The amount of slowing and recovery time vary according to inflation pressure and to the duration of applied pressure. The conduction velocity always returned to normal provided the tourniquet was inflated for 2 hours or less, and pressures were below 500 mm Hg. The nerve directly under the tourniquet was most susceptible to injury. Inflation pressure should be as low as possible and be determined according to systolic blood pressure. An Esmarch bandage should not be used as a pneumatic tourniquet because of its very small surface area. The cause of the nerve injury demonstrated is likely related to arterial ischemia.
本实验研究表明，充气的气动止血带会导致坐骨神经传导速度减慢。减慢的程度和恢复时间因充气压力和施加压力的持续时间而异。只要止血带充气2小时或更短时间且压力低于500毫米汞柱，传导速度总会恢复正常。止血带正下方的神经最易受到损伤。充气压力应尽可能低，并根据收缩压确定。由于其表面积非常小，埃斯马赫绷带不应用作气动止血带。所证实的神经损伤原因可能与动脉缺血有关。
