Development and validation of a nomogram to predict postoperative pulmonary complications following thoracoscopic surgery

Background Postoperative pulmonary complications (PPCs) after thoracoscopic surgery are common. This retrospective study aimed to develop a nomogram to predict PPCs in thoracoscopic surgery. Methods A total of 905 patients who underwent thoracoscopy were randomly enrolled and divided into a training...

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Autores principales: Bin Wang, Zhenxing Chen, Ru Zhao, Li Zhang, Ye Zhang
Formato: article
Lenguaje:EN
Publicado: PeerJ Inc. 2021
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Acceso en línea:https://doaj.org/article/396c94ebafcd404b83cc45327f9f898e
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spelling oai:doaj.org-article:396c94ebafcd404b83cc45327f9f898e2021-11-06T15:05:29ZDevelopment and validation of a nomogram to predict postoperative pulmonary complications following thoracoscopic surgery10.7717/peerj.123662167-8359https://doaj.org/article/396c94ebafcd404b83cc45327f9f898e2021-11-01T00:00:00Zhttps://peerj.com/articles/12366.pdfhttps://peerj.com/articles/12366/https://doaj.org/toc/2167-8359Background Postoperative pulmonary complications (PPCs) after thoracoscopic surgery are common. This retrospective study aimed to develop a nomogram to predict PPCs in thoracoscopic surgery. Methods A total of 905 patients who underwent thoracoscopy were randomly enrolled and divided into a training cohort and a validation cohort at 80%:20%. The training cohort was used to develop a nomogram model, and the validation cohort was used to validate the model. Univariate and multivariable logistic regression were applied to screen risk factors for PPCs, and the nomogram was incorporated in the training cohort. The discriminative ability and calibration of the nomogram for predicting PPCs were assessed using C-indices and calibration plots. Results Among the patients, 207 (22.87%) presented PPCs, including 166 cases in the training cohort and 41 cases in the validation cohort. Using backward stepwise selection of clinically important variables with the Akaike information criterion (AIC) in the training cohort, the following seven variables were incorporated for predicting PPCs: American Society of Anesthesiologists (ASA) grade III/IV, operation time longer than 180 min, one-lung ventilation time longer than 60 min, and history of stroke, heart disease, chronic obstructive pulmonary disease (COPD) and smoking. With incorporation of these factors, the nomogram achieved good C-indices of 0.894 (95% confidence interval (CI) [0.866–0.921]) and 0.868 (95% CI [0.811–0.925]) in the training and validation cohorts, respectively, with well-fitted calibration curves. Conclusion The nomogram offers good predictive performance for PPCs after thoracoscopic surgery. This model may help distinguish the risk of PPCs and make reasonable treatment choices.Bin WangZhenxing ChenRu ZhaoLi ZhangYe ZhangPeerJ Inc.articleThoracoscopic surgeryNomogramsPostoperative pulmonary complicationsMedicineRENPeerJ, Vol 9, p e12366 (2021)
institution DOAJ
collection DOAJ
language EN
topic Thoracoscopic surgery
Nomograms
Postoperative pulmonary complications
Medicine
R
spellingShingle Thoracoscopic surgery
Nomograms
Postoperative pulmonary complications
Medicine
R
Bin Wang
Zhenxing Chen
Ru Zhao
Li Zhang
Ye Zhang
Development and validation of a nomogram to predict postoperative pulmonary complications following thoracoscopic surgery
description Background Postoperative pulmonary complications (PPCs) after thoracoscopic surgery are common. This retrospective study aimed to develop a nomogram to predict PPCs in thoracoscopic surgery. Methods A total of 905 patients who underwent thoracoscopy were randomly enrolled and divided into a training cohort and a validation cohort at 80%:20%. The training cohort was used to develop a nomogram model, and the validation cohort was used to validate the model. Univariate and multivariable logistic regression were applied to screen risk factors for PPCs, and the nomogram was incorporated in the training cohort. The discriminative ability and calibration of the nomogram for predicting PPCs were assessed using C-indices and calibration plots. Results Among the patients, 207 (22.87%) presented PPCs, including 166 cases in the training cohort and 41 cases in the validation cohort. Using backward stepwise selection of clinically important variables with the Akaike information criterion (AIC) in the training cohort, the following seven variables were incorporated for predicting PPCs: American Society of Anesthesiologists (ASA) grade III/IV, operation time longer than 180 min, one-lung ventilation time longer than 60 min, and history of stroke, heart disease, chronic obstructive pulmonary disease (COPD) and smoking. With incorporation of these factors, the nomogram achieved good C-indices of 0.894 (95% confidence interval (CI) [0.866–0.921]) and 0.868 (95% CI [0.811–0.925]) in the training and validation cohorts, respectively, with well-fitted calibration curves. Conclusion The nomogram offers good predictive performance for PPCs after thoracoscopic surgery. This model may help distinguish the risk of PPCs and make reasonable treatment choices.
format article
author Bin Wang
Zhenxing Chen
Ru Zhao
Li Zhang
Ye Zhang
author_facet Bin Wang
Zhenxing Chen
Ru Zhao
Li Zhang
Ye Zhang
author_sort Bin Wang
title Development and validation of a nomogram to predict postoperative pulmonary complications following thoracoscopic surgery
title_short Development and validation of a nomogram to predict postoperative pulmonary complications following thoracoscopic surgery
title_full Development and validation of a nomogram to predict postoperative pulmonary complications following thoracoscopic surgery
title_fullStr Development and validation of a nomogram to predict postoperative pulmonary complications following thoracoscopic surgery
title_full_unstemmed Development and validation of a nomogram to predict postoperative pulmonary complications following thoracoscopic surgery
title_sort development and validation of a nomogram to predict postoperative pulmonary complications following thoracoscopic surgery
publisher PeerJ Inc.
publishDate 2021
url https://doaj.org/article/396c94ebafcd404b83cc45327f9f898e
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AT zhenxingchen developmentandvalidationofanomogramtopredictpostoperativepulmonarycomplicationsfollowingthoracoscopicsurgery
AT ruzhao developmentandvalidationofanomogramtopredictpostoperativepulmonarycomplicationsfollowingthoracoscopicsurgery
AT lizhang developmentandvalidationofanomogramtopredictpostoperativepulmonarycomplicationsfollowingthoracoscopicsurgery
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