OPERATIVE MORTALITY OF CORONARY ARTERY BYPASS GRAFTING IN PATIENTS WITH LOW SERUM ALBUMIN AFTER NUTRITIONAL SUPPORT

Abstract

Objectives: The aim of this study was to determine the frequency of operative mortality in patients who had low serum albumin on admission and were undergoing coronary artery bypass grafting (CABG) after nutritional support at a tertiary care cardiac center in Karachi, Pakistan. Methodology: A retrospective study was conducted at an adult cardiac surgery department of the largest tertiary care cardiac center in Karachi, Pakistan. Patients who had undergone isolated CABG during January to December 2019 admitted with low serum albumin (less than 3.5mg/dl) and received nutritional treatment before surgery were included in the study. Patients were monitored for a month to measure the 30 day mortality. Results: There were 82.4% male patients and the mean age was 55.49±8.52 years. Preoperative mean serum haemoglobin, serum creatinine, and serum albumin levels were 12.225±1.19 mg/dl, 1.05±0.21 mg/dl, and 2.825±0.39 mg/dl respectively. Postoperative mortality was recorded in 1.7% of the total patients. Conclusion: In patients with low serum albumin levels and had undergone isolated CABG after nutritional pre-treatment, mortality was mainly associated with peri-operative myocardial infarction. While, the incidence of delayed wound healing and atrial fibrillation were found to be high in these patients.