Role of echocardiography in peri-operative assessment of coronary artery bypass graft surgery

ABSTRACT

Wall motion abnormalities detected by TEE are more common than ST segment changes detected by ECG. TEE is twice as predictive as ECG in identifying patients who have perioperative myocardial infarction. The study included 50 patients with chronic coronary heart disease underwent CABG surgery. Our results showed that the intraoperative post CABG effect in EF is not significant p>0.05, With DTI we can detect early manifestations of ischaemia through assessment of regional diastolic and systolic velocities. Our results have shown that there is intraoperative immediate significant improvement in the segmental wall motion score index. In patients with multivessel disease, intraoperative TEE and tissue Doppler imaging may be valuable and accurate methods to determine any acute changes in function, this would help to identify if complete and successful revascularization had been performed and define territories requiring more grafting