Effect of coronary artery bypass grafting on patients with enlarged left ventricular and reduced eject frac-tion

doi:10.3969/j.issn.1672-5301.2018.04.020

Abstract：Objective To investigate the effect of coronary artery bypass grafting(CABG)on patients with enlarged left ventricle and reduced eject fraction. Methods From Jan 2014 to May 2017,22 consecutive patients with enlarged left ventricle and reduced low eject fraction have received the coronary artery bypass grafting in our hospital. The involving criteria included:the Dimension of left ventricle larger than 65 mm,eject fraction lower than 35% and the defused of the left ventricular mobility diffused reduced. The cases with left ventricular aneurysm were excluded. All the CABG had used the off-pump technique and part of them was assisted by the IABP. All the cases were using the left mammary artery and the saphenous veins as the grafts. The cardiac ECHO was used to as-sess the recovery of the left ventricle. And the perioperative complications and the follow up results were recorded. The follow-up time was 3-24 months. Results 1 case died in the hospital for the consistent low output syndrome and multiple organ failure. 2 cases had complicated with pneumonia;2 cases suffered with acute renal failure and had recovered without dialysis. 3 cases had consistent ventricular tachycardia in the ICU,who were treated with Amiodarone. One of them had to be implanted the CRTD and another two had been medically stabilized. Ultrasound cardiography in the follow-up period showed that there was a decreased left ventricular end-diastolic dimension [(67.1±4.2)mm vs.(61.3±3.3)mm,P<0.05]and an improved left ventricular ejection fraction(0.30±0.04 vs. 0.35 ±0.05,P<0.05). Conclusion CABG is an effective surgical procedure in the treatment of coronary heart disease with enlarged left ventricle and reduced eject fraction.