Anaesthesia, critical care & pain medicine · 2024
Effect of ventilation mode on postoperative pulmonary complications among intermediate- to high-risk patients undergoing abdominal surgery: A randomized controlled trial.
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Li Xuefei, Xu Yi, Wang Zaili, Wang Weiwei, Luo Qiansu, Yi Qianglin, Yu Hai
Аннотация
BACKGROUND: The effect of different mechanical ventilation modes on pulmonary outcome after abdominal surgery remains unclear. We evaluated the effects of three common ventilation modes on postoperative pulmonary complications (PPCs) among intermediate- to high-risk patients undergoing abdominal surgery.
METHODS: This randomized clinical trial enrolled adult patients at intermediate or high risk of PPCs who were scheduled for abdominal surgery. Participants were randomized to receive one of three modes of mechanical ventilation modes: volume-controlled ventilation (VCV), pressure-controlled ventilation (PCV), and pressure-control with volume-guaranteed ventilation (PCV-VG). Lung-protective ventilation strategy was implemented in all groups. The primary outcome was the incidence of a composite of pulmonary complications within the first 7 postoperative days. Pulmonary complications within 30 postoperative days, the severity grade of PPCs, and other secondary outcomes were also analyzed.
RESULTS: A total of 1365 patients were randomized and 1349 were analyzed. The primary outcome occurred in 98 (21.8%) in the VCV group, 95 (22.1%) in the PCV group, and 101 (22.5%) in the PCV-VG group (P = 0.865). Additionally, there were no statistically significant differences among the three groups in terms of the incidence of pulmonary complications within postoperative 30 days, severity grade of PPCs, and other secondary outcomes.
CONCLUSION: In intermediate- to high-risk patients undergoing abdominal surgery, the choice of ventilation mode did not affect the risk of PPCs.
TRIAL REGISTRATION: Chinese Clinical Trial Registry, entry ChiCTR1900025880.
METHODS: This randomized clinical trial enrolled adult patients at intermediate or high risk of PPCs who were scheduled for abdominal surgery. Participants were randomized to receive one of three modes of mechanical ventilation modes: volume-controlled ventilation (VCV), pressure-controlled ventilation (PCV), and pressure-control with volume-guaranteed ventilation (PCV-VG). Lung-protective ventilation strategy was implemented in all groups. The primary outcome was the incidence of a composite of pulmonary complications within the first 7 postoperative days. Pulmonary complications within 30 postoperative days, the severity grade of PPCs, and other secondary outcomes were also analyzed.
RESULTS: A total of 1365 patients were randomized and 1349 were analyzed. The primary outcome occurred in 98 (21.8%) in the VCV group, 95 (22.1%) in the PCV group, and 101 (22.5%) in the PCV-VG group (P = 0.865). Additionally, there were no statistically significant differences among the three groups in terms of the incidence of pulmonary complications within postoperative 30 days, severity grade of PPCs, and other secondary outcomes.
CONCLUSION: In intermediate- to high-risk patients undergoing abdominal surgery, the choice of ventilation mode did not affect the risk of PPCs.
TRIAL REGISTRATION: Chinese Clinical Trial Registry, entry ChiCTR1900025880.