Impact of coronary artery bypass grafting on left ventricular function in patients with low ejection fraction
Keywords:CAD, left ventricular function, low ejection fraction
Objective: To study the impact of Coronary Artery Bypass Grafting on Left Ventricular Function in patients with low ejection fraction.
Methodology: This observational study was conducted at the Cardiac surgery Department of Punjab Institute of Cardiology, Lahore for a time period of 6 months from June 2019 to November 2019. 114 patients were selected through Non-probability, consecutive sampling technique. All patients then underwent echocardiography to evaluate LV ejection fraction. Patients then underwent CABG and were followed for left ventricular function i.e. ejection fraction after 5 days of surgery. Left ventricular function was evaluated by using echocardiography. All this information was entered on predesigned proforma. Data analysis was done through SPSS version 21. Mean ± standard deviation was calculated for left ventricular function. Preoperative and Postoperative left ventricular function was differentiated by applying paired sample t-test with p-value≤0.05 considered as significant.
Results: The mean age of study population was 55.57± 8.76 years with an age range of 30 to 70 years. There were 94(82.46%) male and 20(17.54%) female cases with male to female ratio of 4.7:1. The mean weight, height and BMI were 78.81±12.04 kg, 1.67 ± 0.09 m and 28.27±4.09 respectively. The mean ejection faction before surgery was 32.13 ± 3.94 % and after 5 days of surgery the mean ejection fraction was significantly improved to 36.15± 4.11%, p-value < 0.0001.
Conclusion: The level of left ventricular remodeling determines the functional improvement rate after CABG. Patients undergoing CABG with low ejection fractions have been benefited in early assessment.
Copyright (c) 2020 Annals of PIMS-Shaheed Zulfiqar Ali Bhutto Medical University
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