Abstract
Background: Pulmonary complications after cardiopulmonary bypass was have devastating effects on the outcomeof the surgery.Objective: To find out the frequency of pulmonary complications after cardiopulmonary bypass related to aortic crossclamp time.Methodology: In this cross-sectional study of 120 patients, aged 16 to 78 years. The study was carried out at PunjabInstitute Cardiology Hospital Lahore and Gulab Devi Chest Hospital Lahore. Quantitative statistics were displayed asfrequency distribution, mean, range and standard deviation. Chi-square test was used to see relationship amongpulmonary complications after cardiopulmonary bypass and prolonged aortic cross clamp time. P-value less than 0.05was taken as significant.Results: Overall 120 patients were included in this study, among 51 (42%) patients had pulmonary complicationspost-operative. Most recurrent post-operative pulmonary complication was pleural effusion 37 (30%) patients,prolonged mechanical ventilation 22 (18%), pneumonia in 3 (2.5%) and pulmonary edema in 1 (0.83%) patients. Themajor element of danger of postoperative pulmonary complication was prolonged aortic cross clamp time above 90minutes and p-value was 0.002.Conclusion: It is summarized that pleural effusion is the common complication after cardiopulmonary bypass andprolonged aortic cross clamp time >90mints had a high risk of pulmonary complications after cardiopulmonarybypass.