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BioMed Research International
Volume 2015 (2015), Article ID 265165, 10 pages
Clinical Study

Incidence and Risk Factors of Postoperative Pulmonary Complications in Noncardiac Chinese Patients: A Multicenter Observational Study in University Hospitals

1Department of Anesthesiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
2Intensive Care Unit, The Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China
3Department of Anesthesiology, The First Affiliated Hospital, Wenzhou Medical College, Wenzhou 325000, China
4Department of Anesthesiology, The Second Affiliated Hospital, Wenzhou Medical College, Wenzhou 325027, China
5Department of Anaesthesiology and Intensive Care Medicine, University of Bonn, 53127 Bonn, Germany

Received 9 January 2014; Revised 1 July 2014; Accepted 6 August 2014

Academic Editor: Stephen M. Pastores

Copyright © 2015 Yue Jin et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Purpose. To assess the incidence of postoperative pulmonary complications (PPCs) in Chinese inpatients, and to develop a brief predictive risk index. Methods. Between August 6, 2012, and August 12, 2012, patients undergoing noncardiac operations in four university hospitals were enrolled. The cohort was divided into two subsamples, cohort 1 to develop a predictive risk index of PPCs and cohort 2 to validate it. Results. 1673 patients were enrolled. PPCs were recorded for 163 patients (9.7%), of whom the hospital length of stay (LOS) was longer (). The mortality was 1.84% in patients with PPCs and 0.07% in those without. Logistic Regression modeling in cohort 1 identified nine independent risk factors, including smoking, respiratory infection in the last month, preoperative antibiotic use, preoperative saturation of peripheral oxygen, surgery site, blood lost, postoperative blood glucose, albumin, and ventilation. The model was validated within cohort 2 with an area under the receiver operating characteristic curve of 0.90 (95% CI 0.86 to 0.94). Conclusions. PPCs are common in noncardiac surgical patients and are associated with prolonged LOS in China. The current study developed a risk index, which can be used to assess individual risk of PPCs and guide individualized perioperative respiratory care.