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Coronary artery bypass graft (CABG) surgery: current University Hospital (K.L.) experience
1Department of Surgery, University Hospital, Kuala Lumpur.
Insights
Coronary artery bypass grafting (CABG) surgery improved patient outcomes, with 98% experiencing better functional status and exercise performance post-operation. This retrospective study analyzed 163 patients, highlighting reduced morbidity and mortality rates.
Area of Science:
- Cardiology
- Cardiac Surgery
Background:
- Coronary artery bypass surgery (CABG) is a critical intervention for severe coronary artery disease.
- Assessing outcomes and identifying factors influencing morbidity and mortality in CABG patients is essential for improving surgical practice.
Purpose of the Study:
- To retrospectively review a series of 163 patients undergoing CABG.
- To determine factors affecting hospital morbidity and mortality.
- To evaluate the impact of CABG on left ventricular function and patient functional status.
Main Methods:
- Retrospective analysis of 163 patients who underwent CABG between March 1988 and December 1990.
- Categorization of patients into elective (138) and emergency (25) groups.
- Inclusion of patients with specific high-risk conditions: recent myocardial infarction, failed angioplasty, post-coronary angiogram.
Main Results:
- Overall hospital mortality rate was low, with 2.2% in the elective group and two deaths in the emergency group.
- Pre-operative ejection fraction <30% was noted in 20% of patients, with significant improvement observed post-surgery.
- Follow-up (3 months to 3 years) showed a 98% improvement in functional status (NYHA classification), angina, and exercise performance.
Conclusions:
- Coronary artery bypass grafting demonstrates significant benefits in improving functional status and exercise capacity.
- The study indicates favorable outcomes and acceptable mortality rates for CABG, even in patients with pre-existing poor left ventricular function.
- CABG surgery is an effective treatment for improving the quality of life in patients with coronary artery disease.
Abstract:
A personal series of 163 patients who underwent coronary artery bypass surgery (CABG) in the University Hospital, Kuala Lumpur between March 1988 and December 1990 were reviewed retrospectively to determine factors affecting hospital morbidity and mortality. One hundred and thirty eight were elective cases while 25 patients underwent emergency CABG surgery. Of these, 15 patients had recent myocardial infarction, with unstable haemodynamics or post infarct angina; six had failed angioplasty procedures and four patients immediately following coronary angiogram. The elective hospital mortality rate was 2.2% (three cases) and there were two deaths in the emergency group. Pre-operatively 20 patients (13%) had very poor left ventricular function of less than 30% ejection fraction. Significant improvement in ejection fraction was observed following surgery. The follow-up periods were between three months to three years. Ninety eight percent of patients showed improvement in their functional status (NYHA classification) in relation to angina and exercise performance.