重症心不停搏双瓣置换术  

DOUBLE VALVE REPLACEMENTS WITHOUT CARDIAC ARREST IN SEVERE PATIENTS

作　　者：傅新平[1] 

机构地区：[1]海南医学院附属医院心胸外科,海口570102

出　　处：《中国现代手术学杂志》1998年第2期111-112,共2页Chinese Journal of Modern Operative Surgery

摘　　要：本文介绍了心不停搏双瓣置换术的体外循环及手术技术。特别强调:①体外循环流量必须维持平均动脉压大于6.7kPa,预充液内加入少量去甲肾上腺素(1μg/kg)有助于提高灌注压。②33℃浅低温有利于心脑等重要脏器保护和手术操作。③主动脉瓣置换时,冠状静脉窦逆行灌注流量在200～300ml/min之间。④左心术毕,注意充分排气。This article introduced a technique of CPB and operation on double valve replacements without cardiac arrest in serious cases. A few points were highlighted as follows: (1)CPB flow rates should be maintained to keep a perfusion pressure more than 6. 7kPa. A little dose of norepinephrine(1μg/kg)added into the prefilled fluid of the machine is more helpful to improve perfusion pressure. (2)A mild hypothermia at 33℃ precipitates to the protection of the heart and brain and the maneuver of the procedure. (3)The flow rate of retrograde coronary sinus perfusion should be at least 200 to 300 ml/min during aortic valve procedure. (4)Air should be completely eliminated after the operation of the left heart.

关 键 词：心不停搏双瓣置换术 体外循环 心脏瓣膜疾病 人工心脏瓣膜 

分 类 号：R654.2[医药卫生—外科学]