Abstract
Off-pump coronary artery bypass grafting (OPCABG) might reduce perioperative morbidity and improve outcome because of avoidance of cardiopulmonary bypass (CPB). Therefore, OPCABG is performed widely now. However, displacement of the heart and positioning the stabilizer device can result in particular pathophysiologic changes during beating -heart surgery, which make the anesthetic management more difficult. Moreover, these pathophysiologic changes may lead to myocardial ischemia and cardiac dysfunction. Especially, ventricular diastolic function and right ventricular function get more attentions recently. Anesthetist must know well the intraoperative monitoring in which the new type Swan -Ganz catheter and transesophageal echocardiography(TEE) have more important effects on hemodynamic and cardiac performance monitoring. In addition, ventricular pressure - volume loop is an attractive index to assess cardiac function. Key words: hcmodynamic derangement; cardiac function; monitoring; off- pump coronary artery bypass grafting
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