Walker P M, Johnston K W
Am J Surg. 1980 Nov;140(5):603-5. doi: 10.1016/0002-9610(80)90039-2.
The largest decrease in cardiac output in patients undergoing aortoiliac bypass grafting for peripheral arterial occlusive disease occurs when the aorta is cross-clamped, not when it is declamped. This decrease was reduced in four patients who received 2 liters of Ringer's lactate preoperatively. Postoperatively, as peripheral resistance decreases, a large volume of fluid may be necessary to maintain homeostasis. By knowing when changes in cardiac hemodynamics can be expected to occur during aortoiliac surgery, it may be possible to prevent cardiac complications.
接受主髂动脉搭桥术治疗外周动脉闭塞性疾病的患者，心输出量最大降幅出现在主动脉被阻断时，而非在解除阻断时。术前接受2升乳酸林格液的4例患者，这种降幅减小。术后，随着外周阻力降低，可能需要大量液体来维持体内平衡。通过了解主髂动脉手术期间何时可能出现心脏血流动力学变化，或许可以预防心脏并发症。
