Introduction
postoperative pulmonary complications
There is growing interest in the role of low tidal volume ventilation (LTVV) during major surgery for the prevention of postoperative pulmonary complications (PPCs) [We recently reported the results for a large randomized controlled trial of LTVV versus conventional tidal volume during major surgery when PEEP was equal between groups. We found no difference in PPCs in patients who received LTVV, but in a subgroup of patients undergoing laparoscopic surgery LTVV was associated with a numerically lower rate of PPCs within 7 days [Therefore, we conducted a post-hoc analysis using data from patients undergoing laparoscopic surgery who were included in the original trial [