• Jianhong Hao, Peng Pang, Xiaobing Liu, Wen Chi, Zhenguo Luo, Wenbo Cai, and Li Zhang.
• Department of Anaesthesiology, HongHui Hospital, Xi'an JiaoTong University, Xi'an, Shaanxi Province, China. Electronic address: geriatric1073@cdmc.edu.cn.
• J Clin Anesth. 2024 Nov 5; 99: 111675111675.

Study ObjectivePatients with blunt thoracic trauma have a high risk of developing postoperative pulmonary complications (PPCs). In this study, we aimed to identify the risk factors for PPCs after non-thoracic surgery in patients with blunt thoracic trauma and investigate the efficacy of perioperative lung ultrasound scores in predicting PPC occurrence.DesignProspective observational study.SettingA Chinese tertiary orthopedic hospital.ParticipantsThis observational study included 369 patients with blunt thoracic trauma who underwent surgery for pelvic and upper or lower extremity fractures.InterventionsLung ultrasonography was performed pre- and postoperatively.MeasurementsPatients were followed up for 1 week to assess PPCs and assigned to the PPC or non-PPC groups. We identified risk factors for PPCs using univariate and multivariate logistic regression analyses. The predictive value of these risk factors was evaluated using receiver operating characteristic (ROC) curves.Main ResultsPPCs incidence was 36.58 %. The two groups differed significantly in Injury Severity Scores, American Society of Anesthesiologists (ASA) classification, chronic obstructive pulmonary disease, hydrothorax, preoperative hypoxemia, lung ultrasound score, preoperative hemoglobin level, intraoperative infusion volume, and Assess Respiratory Risk in Surgical Patients in Catalonia (ARISCAT) scores (P < 0.05). Independent risk factors for PPCs included ASA classification III, higher postoperative lung ultrasound scores, preoperative anemia, higher intraoperative infusion volume, and higher ARISCAT scores. ROC curve analysis revealed that postoperative lung ultrasound score (area under the curve [AUC]: 0.810, cutoff: 10), preoperative hemoglobin level (AUC: 0.627, cutoff: 97), intraoperative infusion volume (AUC: 0.701, cutoff: 886.51 mL/h) and ARISCAT score (AUC: 0.718, cutoff: 33) predicted postoperative outcomes effectively.ConclusionsPostoperative lung ultrasound scores reliably predicted pulmonary complications after non-thoracic surgery in patients with blunt thoracic trauma. ASA classification III, preoperative anemia, excessive intraoperative fluid infusion, higher ARISCAT, and postoperative lung ultrasound scores were significant risk factors associated with PPCs.Trial RegistrationClinical Trial Number: 1900023408. Registered on May 26, 2019.Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.

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