Comparison of Peroperative Venous Grafts Number and Distribution of Distal Venous Grafts

Abstract

Introduction: Coronary artery bypass grafting effectively relieves signs and symptoms of myocardial ischemia. Coronary artery bypass grafting (CABG) surgery aims to restore adequate blood supply to the ischemic heart and the success of the operation depends mainly upon the patency of the grafts. A major contributing factor to the early atherosclerotic process is damage to the vessel wall, specially endothelial injury that occurs during the conventional harvesting of the vein, using high-pressure distension. Objective: To determine the comparison of peroperative venous grafts number and distribution of distal venous grafts. Materials and Methods: This comparative cross-sectional study was carried out at the department of cardiac surgery in National Heart Foundation Hospital & Research Institute. The period of study was from January, 2019 to September, 2020 and purposive sampling method was applied for this study. The study population was 80, with two groups having 40 patients each. Grouping of patients were done by purposive sampling method and all patients underwent elective coronary artery bypass graft in 2015. These groups of patients again investigated through coronary computed tomography angiogram in 2020 for evaluation of saphenous vein patency and occlusion rate. Data was collected by using a standardized semi-structured questionnaire, face to face interview and hospital records. Results: Among the study population mean age in group A was 59.38±7.43 years and in group B was 58.70±8.27 years. The difference in age between two groups was not statistically significant (p=0.702). There was no statistical significance of gender in between the two study groups (p=0.762). The comparison of the presence of Chest pain (p=0.799), Dyspnea (p=0.262), Palpitation (p=0.633) in group A and B patients were statistically not significant (p>0.05). The number of venous grafts of group A was 3.65±0.74 & group B was 3.58±0.55 where the finding was statistically ............