Don Michael T A
Med Instrum. 1977 Nov-Dec;11(6):331-3.
The Esophageal Obturator Airway, a device designed for use in the management of cardiopulmonary arrest, obstructs the esophagus while simultaneously ventilating the lungs. The EOA was clinically tested in 29,000 patients with a low incidence of false entries and complications. Physiological studies indicated that vital capacity, blood gases, and pH were comparable to those obtained with the use of the endotracheal tube. Furthermore, the insertion of the EOA was more rapid (mean 6 sec vs 20 sec), more accurate (98 percent vs 48 percent), and easier to teach to paramedical personnel. It was concluded that whenever optimal conditions for endotracheal intubation are unavailable, the EOA should be first choice in the management of the airway in aneflexic, apneic patients. Specific contraindications are listed.
食管阻塞通气道是一种设计用于心肺复苏管理的设备，它在使肺部通气的同时阻塞食管。食管阻塞通气道在29000例患者中进行了临床测试，误插和并发症的发生率较低。生理学研究表明，肺活量、血气和pH值与使用气管内导管时获得的结果相当。此外，食管阻塞通气道的插入更快（平均6秒对20秒）、更准确（98%对48%），并且更容易向医护辅助人员传授。得出的结论是，每当无法满足气管内插管的最佳条件时，食管阻塞通气道应成为无反应、呼吸暂停患者气道管理的首选。文中列出了具体的禁忌症。
