Davila R M, Rawles T, Mack M J
Cardiopulmonary Research Science Technology, Institute, Dallas, Texas, USA.
Ann Thorac Surg. 2001 Apr;71(4):1369-71. doi: 10.1016/s0003-4975(00)02198-6.
Minimal access techniques with cardiopulmonary bypass use smaller cannula systems for management of cardiopulmonary bypass. To augment flow rates through the smaller cannula, the technique of vacuum-assisted venous drainage has been used. We describe a complication of vacuum-assisted venous drainage by inadvertent positive pressurization of the venous circuit resulting in a paradoxic air embolus across a patent atrial septal defect. Hazards of the current cardiopulmonary bypass systems and techniques for avoiding this potential complication are discussed.
体外循环的微创技术使用较小的插管系统来管理体外循环。为了增加通过较小插管的流量，已采用真空辅助静脉引流技术。我们描述了一种真空辅助静脉引流的并发症，即静脉回路意外正压导致经未闭房间隔的反常空气栓塞。讨论了当前体外循环系统和技术避免这种潜在并发症的风险。
