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Minerva Anestesiologica 2020 Dec 16

DOI: 10.23736/S0375-9393.20.14951-4

Copyright © 2020 EDIZIONI MINERVA MEDICA

lingua: Inglese

Effects of lung-protective ventilation strategy on lung aeration loss and postoperative pulmonary complications in moderate-risk patients undergoing abdominal surgery

Yu FU 1, Yan-Wei ZHANG 1, Jie GAO 2, Hui-Min FU 1, Ling SI 1, Yong-Tao GAO 1

1 Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China; 2 Medical College of Nantong University, Nantong, Jiangsu, China


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BACKGROUND: There is a controversy about whether the use of a lung-protective ventilation strategy(LPVS) can reduce the incidence of postoperative pulmonary complications (PPCs) and improve the clinical outcomes in moderate-risk patients were assessed by the Assess Respiratory Risk in Surgical Patients in Catalonia(ARISCAT).
METHODS: One hundred moderate-risk patients predicted by the ARISCAT, scheduled to undergo abdominal surgery were randomized into two groups: conventional ventilation strategy group (G0) and lung-protective ventilation strategy group (G1). Lung ultrasonography(LUS) and the LUS score were performed before induction of anesthesia (T0), 30min after extubation (T1), and 24h (T2), 72h (T3) after surgery. The incidence and severity of PPCs within the postoperative 7 days, the duration of postoperative oxygen supplementation, and postoperative hospital stay(PHS)were recorded.
RESULTS: The LUS score of both groups at T1-3 was higher than those at T0 (p<0.05), moreover, the LUS score of G1 was lower than that of G0 at T1-3. The incidence of PPCs of G1 (10.9%) was lower than that of G0 (29.8%) (relative risk, 0.37; 95% confidence interval [CI], 0.14 to 0.93; P = 0.02) and the severity of PPCs of G1 were lower than those of G0(P<0.05). The PHS of G1 was less than that of G0 (8[7-10] vs. 9[8-11], p<0.05).
CONCLUSIONS: The LPVS can decrease lung aeration loss assessed by LUS and reduce the incidence of PPCs in moderate-risk patients.


KEY WORDS: Lung-protective ventilation strategy; Postoperative pulmonary complications; Moderate-risk patients; Lung ultrasonography; Lung aeration loss

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