Background: Respiratory function is depressed after abdominal surgery. Less trauma to the abdominal wall results in early postoperative recovery. Aim: The study was planned to compare recovery of postoperative respiratory functions between open surgeries and laparoscopic surgeries in the Indian population. Materials and Methods: 50 patients undergoing open surgery and 50 patients undergoing laparoscopy underwent tests on pulmonary functions (Forced Vital Capacity [FVC], Forced Expiratory Volume in first second [FEV1], Forced Expiratory Flow between 25% and 75% [FEF25%-75%]), Peak Expiratory Flow [PEF]and capillary blood gas analysis (paO2, paCO2) before surgery and after two days following surgery using RMS MEDSPIROR® and blood gas analysis of capillary blood. Results: Change in FVC, FEV1, FEF25%-75% , PEF, pO2 and pCO2 to 65.9%, 66.9%, 66%, 64.9%,92% and 99% respectively of the preoperative value following open surgery and to 82.5%, 84%, 86%, 82.5%,97.5% and 102% respectively of the preoperative value following laparoscopic surgery. Conclusions: Respiratory function recovery is better in laparoscopic surgery compared to open surgery.
Keywords: Laparotomy, Open surgery, Laparoscopy, Lungs, Spirometry, Blood gas