McGrath B J, Hsia J, Boyd A, Shay P, Graeter J, Conry K, Campbell D, Naulty J S
Department of Anesthesiology, George Washington University Medical Center, Washington, DC.
Anesth Analg. 1994 Feb;78(2):349-53. doi: 10.1213/00000539-199402000-00025.
Massive pulmonary embolism has been reported to occur with the use of lower extremity tourniquets. We used transesophageal echocardiography to determine the incidence of venous embolism during lower extremity orthopedic surgery performed with a pneumatic tourniquet. The hemodynamic and respiratory consequences of all embolic events were assessed. Venous emboli were detected after tourniquet deflation in 8 of 30 procedures. The incidence of embolism was unrelated to the type of surgical procedure performed or the duration of tourniquet inflation. There were no significant differences in preoperative characteristics or postdeflation hemodynamic and respiratory responses between patients with and without emboli. Venous embolization is a relatively common event after tourniquet deflation. The clinical significance of these events remains to be determined.
据报道，使用下肢止血带会发生大面积肺栓塞。我们采用经食管超声心动图来确定在使用气动止血带进行下肢骨科手术期间静脉栓塞的发生率。对所有栓塞事件的血流动力学和呼吸后果进行了评估。在30例手术中有8例在止血带放气后检测到静脉栓子。栓塞的发生率与所进行的外科手术类型或止血带充气持续时间无关。有栓子和无栓子患者的术前特征或放气后血流动力学及呼吸反应无显著差异。止血带放气后静脉栓塞是相对常见的事件。这些事件的临床意义尚待确定。
