Outcomes of Off-Pump Coronary Artery Bypass Grafting in Ischemic Cardiomyopathy

Authors

  • Chusak Nudaeng Cardiovascular Thoracic Unit, Department of Surgery, Rajavithi Hospital, Rangsit University, Bangkok 10400
  • Raschareeya Santisevi Cardiovascular Thoracic Surgery Unit, Department of Surgery, Rajavithi Hospital, Rangsit University, Bangkok
  • Supakorn Srihattapadungkit Cardiovascular Thoracic Surgery Unit, Department of Surgery, Rajavithi Hospital, Rangsit University, Bangkok

Keywords:

Off-pump coronary artery bypass, Cardiomyopathy, Left ventricle dysfunction, Coronary artery disease

Abstract

Objective: Surgical coronary revascularization for coronary artery disease (CAD) with reduced left ventricular ejection fraction (LVEF) entails a high risk of postoperative complications and mortality. This study aimed to evaluate the surgical outcomes of off-pump coronary artery bypass grafting (OPCAB) in ischemic cardiomyopathy patients in our hospital.

Patients and Methods: From January 2012 to December 2018, eighty CAD patients with low LVEF ≤ 35% who underwent isolated OPCAB were included in the present study. In-hospital mortality, major adverse cardiovascular and cerebrovascular events were evaluated, and factors associated with mortality were analyzed.

Results: The mean preoperative LVEF was 26%, while their mean EuroSCORE II was 11.9, and their in-hospital mortality rate was 16% (13 patients). Low cardiac output syndrome was found in 3 patients, congestive heart failure in 2 patients, and cardiogenic shock in 3 patients. There were no postoperative strokes or myocardial infarction, and postoperative LVEF was significantly improved, with an average of 38% (P = 0.040).  Insulin-dependent type II diabetes mellitus was significantly associated with increased in-hospital mortality (P < 0.001).

Conclusions: Patients with coronary artery disease and ischemic cardiomyopathy showed significantly improved left ventricular ejection fraction after off-pump coronary artery bypass grafting surgery. There were no postoperative myocardial infarction or stroke in the present study. Insulin-dependent type II diabetes mellitus was significantly associated with increased in-hospital mortality.

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Published

2022-08-19

How to Cite

1.
Nudaeng C, Santisevi R, Srihattapadungkit S. Outcomes of Off-Pump Coronary Artery Bypass Grafting in Ischemic Cardiomyopathy. Thai J Surg [Internet]. 2022 Aug. 19 [cited 2024 Oct. 13];43(2):64-9. Available from: https://he02.tci-thaijo.org/index.php/ThaiJSurg/article/view/254676

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Original Articles