Kurusz M, Shaffer C W, Christman E W, Tyers G F
J Thorac Cardiovasc Surg. 1979 May;77(5):792-5.
Massive gas embolism was narrowly avoided during a recent case of cardiopulmonary bypass for aortic valve replacement. Cause of the mishap was an arterial pump head that had rapidly accelerated spontaneously, emptying the oxygenator of blood within seconds. No gas entered the patient's vascular system, but a period of circulatory arrest was required in order to purge the extracorporeal circuit of gas and to re-establish blood flow. Only an instantaneous response by the perfusionist prevented massive gas embolism.
在最近一例主动脉瓣置换的体外循环手术中,险些发生大量气体栓塞。事故原因是动脉泵头突然自发加速,在数秒内将氧合器中的血液排空。没有气体进入患者的血管系统,但为了排出体外循环中的气体并重新建立血流,需要一段循环停滞期。正是灌注师的即时反应才避免了大量气体栓塞的发生。