经食道超声心动图在心瓣膜手术中指导排气的价值

Value of Exhaust Quided by Transesophageal Echocardiography during Cardiac Valvular Operations

心瓣膜手术中由于“开心”和体外循环，心腔内尤其是左房左室内会出现气体。气体栓塞是心瓣膜手术后引起中枢神经系统（ＣＮＳ）损害的原因之一。用术中经食道超声心动图（ＩＴＥＥ）监测气体显现时间、来源、多少，指导及时排气，有助于减少气体栓塞引起的并发症。

Air was displayed intracardiac chamber, especially in left atrium and left ventricle, because of 'open heart' and extracorporeal circulation during cardiac valvular operations. Air embolism (AE) is one of several possible causes of central nervous system (CNS) damage after heart operations. Intraoperative transesophageal echopcardiography (ITEE) was used to observe the appearance time, source and quantity of air and quide the exhaust proceduces in time. It will help eliminate the complications caused by AE.