Work

Effect of intraoperative oesophageal pressure-guided PEEP on postoperative pulmonary complications in elderly patients undergoing major laparoscopic surgery: study protocol for a multicentre randomised controlled clinical trial in China

Year: 2025

Type: article

Abstract: INTRODUCTION: Postoperative pulmonary complications (PPCs) induced by mechanical ventilation in general anaesthesia are related to poor clinical outcomes. Positive end-expiratory pressure (PEEP) is a key component of the lung protective ventilation strategy. Individualised PEEP guided by end-expiratory oesophageal pressure (Pes) to maintain a positive end-expiratory transpulmonary pressure can avoid alveolar collapse and improve the respiratory mechanics. However, there is no research studying the relationship between the Pes-guided PEEP titration and PPCs. The aim of our study is to investigate the potential role of Pes-guided PEEP titration on the incidence of PPCs and respiratory mechanics. METHODS AND ANALYSIS: O) without lung recruitment manoeuvres (RMs) or Pes-guided PEEP group with RMs in a 1:1 ratio. Preoperative preparation, anaesthesia management and postoperative care will be performed similarly in both groups. The primary outcome will be the development of PPCs within 7 days after surgery. The intraoperative respiratory parameters, the oxygenation index, vital signs and non-respiratory complications within 7 days after surgery, the 15-item Quality of Recovery-15 questionnaire, unplanned reintubation and unplanned transfer to the intensive care unit, hospital stay, perioperative plasma levels of lung injury biomarkers, complications within 30 days after surgery and 90-day mortality after surgery will be recorded and evaluated as the secondary outcomes. ETHICS AND DISSEMINATION: The study has received ethics approval from the ethics committee of the Zhongshan Hospital, Fudan University (China) with the approval number B2023-334R. The results of the study will be submitted for publication in peer-reviewed journals. PROTOCOL VERSION: Version 1, on 9 October 2023. TRIAL REGISTRATION NUMBER: NCT06150079.

Source: BMJ Open

DOI: 10.1136/bmjopen-2024-096219