本研究观察了老年人在肾移植手术期间血流动力学的变化。1材料和方法选择年龄≥60岁的肾移植手术病人为老年组（L组），年龄＜60岁者为中青年组（Z组）。麻醉方法：首先在T11~12或T12~L1间隙好硬膜外穿刺，成功后在L3~4间隙行腰穿，腰麻平面控制在T4以下。在腰麻后1h或阻滞平面 This study looked at hemodynamic changes in elderly patients undergoing renal transplantation. 1 Materials and methods Selection of patients aged 60 years or older renal transplant patients for the elderly group (L group), aged <60 years of young and middle-aged group (Z group). Anesthesia method: first in the T11 ~ 12 or T12 ~ L1 gap good epidural puncture, the success of lumbar puncture in the L3 ~ 4 space, spinal anesthesia in T4 below the plane control. 1 h after spinal anesthesia or block plane