ABSTRACT
Background: Inflammation of gallbladder bed, CO2 pneumoperitoneum, and intraoperative patient posture all plays a role in the etiology of pulmonary dysfunction during laparoscopic cholecystectomy. Aims and Objectives: The goal of this study was to detect any changes in pulmonary function following laparoscopic cholecystectomy using a portable spirometry instrument, as well as to determine the degree of pulmonary function impairment and complications. Materials and Methods: The pre-operative and post-operative spirometry of 150 patients undergoing laparoscopic cholecystectomy under general anesthesia were compared in this prospective observational study conducted at JLN medical college and attached group of hospitals after obtaining due permission from the Institutional Ethics Committee. Spirometry was performed preoperatively to determine baseline values forced vital capacity (FVC), forced expiratory volume in 1 s (FEV1), and peak expiratory flow rate (PEFR). Those who were unable to complete the required maneuvers were not included in the study. Pulmonary function testing was performed thrice after surgery, on days 1, 2, and 3 after surgery. To achieve a VAS score of <4, enough pain alleviation was provided. The paired t-test was used to compare spirometry values. Results: Between the preoperative and immediate post-operative periods, significant changes in FVC, FEV1, and PEFR were detected, indicating restrictive ventilator dysfunction. Conclusion: After laparoscopic cholecystectomy, light restrictive respiratory disturbances were noted with quick recovery of pulmonary function, potentially lowering post-operative pulmonary morbidity and mortality.