Derivation and validation of a prediction score for postoperative delirium in geriatric patients undergoing hip fracture surgery or hip arthroplasty

IntroductionPostoperative delirium is a common complication of patients undergoing hip fracture surgery or arthroplasty and is related to decreased survival time and physical function. In this study, we aim to build and validate a prediction score of postoperative delirium in geriatric patients unde...

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Main Authors: Jiawei Shen, Youzhong An, Baoguo Jiang, Peixun Zhang
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-08-01
Series:Frontiers in Surgery
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fsurg.2022.919886/full
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author Jiawei Shen
Youzhong An
Baoguo Jiang
Baoguo Jiang
Baoguo Jiang
Peixun Zhang
Peixun Zhang
Peixun Zhang
author_facet Jiawei Shen
Youzhong An
Baoguo Jiang
Baoguo Jiang
Baoguo Jiang
Peixun Zhang
Peixun Zhang
Peixun Zhang
author_sort Jiawei Shen
collection DOAJ
description IntroductionPostoperative delirium is a common complication of patients undergoing hip fracture surgery or arthroplasty and is related to decreased survival time and physical function. In this study, we aim to build and validate a prediction score of postoperative delirium in geriatric patients undergoing hip fracture surgery or hip arthroplasty.MethodsA retrospective cohort of geriatric patients undergoing hip fracture surgery or hip arthroplasty was established. Variables of included patients were collected as candidate predictors of postoperative delirium. The least absolute shrinkage and selection operator (LASSO) regression and logistic regression were used to derive a predictive score for postoperative delirium. The accuracy of the score was evaluated by the area under the curve (AUC) of the receiver operating curve (ROC). We used bootstrapping resamples for model calibration. The prediction score was validated in an extra cohort.ResultsThere were 1,312 patients in the derivation cohort, and the incidence of postoperative delirium was 14.33%. Of 40 variables, 9 were identified as predictors, including preoperative delirium, cerebrovascular accident (CVA) with the modified Rankin scale, diabetes with a random glucose level, Charlson comorbidity index (CCI), age, application of benzodiazepines in surgery, surgical delay ≥2 days, creatine ≥90 μmol/L, and active smoker. The prediction score achieved a mean AUC of 0.848 in the derivation cohort. In the validation cohort, the mean AUC was 0.833. The prediction model was well-calibrated in the two cohorts.ConclusionBased on retrospective data, a prediction score for postoperative delirium in geriatric patients undergoing hip fracture surgery or hip arthroplasty was derived and validated. The performance of the scoring system outperformed the models from previous studies. Although the generalization ability of the score needs to be tested in similar populations, the scoring system will enable delirium risk stratification for hip fracture patients and facilitate the development of strategies for delirium prevention.
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spelling doaj.art-9b3c28cfdaae4a32ba33515a56339c3e2022-12-22T03:59:18ZengFrontiers Media S.A.Frontiers in Surgery2296-875X2022-08-01910.3389/fsurg.2022.919886919886Derivation and validation of a prediction score for postoperative delirium in geriatric patients undergoing hip fracture surgery or hip arthroplastyJiawei Shen0Youzhong An1Baoguo Jiang2Baoguo Jiang3Baoguo Jiang4Peixun Zhang5Peixun Zhang6Peixun Zhang7Department of Orthopaedics and Trauma, Peking University People's Hospital, Beijing, ChinaDepartment of Critical Care Medicine, Peking University People's Hospital, Beijing, ChinaDepartment of Orthopaedics and Trauma, Peking University People's Hospital, Beijing, ChinaKey Laboratory of Trauma and Neural Regeneration, Peking University, Beijing, ChinaNational Center for Trauma Medicine, Beijing, ChinaDepartment of Orthopaedics and Trauma, Peking University People's Hospital, Beijing, ChinaKey Laboratory of Trauma and Neural Regeneration, Peking University, Beijing, ChinaNational Center for Trauma Medicine, Beijing, ChinaIntroductionPostoperative delirium is a common complication of patients undergoing hip fracture surgery or arthroplasty and is related to decreased survival time and physical function. In this study, we aim to build and validate a prediction score of postoperative delirium in geriatric patients undergoing hip fracture surgery or hip arthroplasty.MethodsA retrospective cohort of geriatric patients undergoing hip fracture surgery or hip arthroplasty was established. Variables of included patients were collected as candidate predictors of postoperative delirium. The least absolute shrinkage and selection operator (LASSO) regression and logistic regression were used to derive a predictive score for postoperative delirium. The accuracy of the score was evaluated by the area under the curve (AUC) of the receiver operating curve (ROC). We used bootstrapping resamples for model calibration. The prediction score was validated in an extra cohort.ResultsThere were 1,312 patients in the derivation cohort, and the incidence of postoperative delirium was 14.33%. Of 40 variables, 9 were identified as predictors, including preoperative delirium, cerebrovascular accident (CVA) with the modified Rankin scale, diabetes with a random glucose level, Charlson comorbidity index (CCI), age, application of benzodiazepines in surgery, surgical delay ≥2 days, creatine ≥90 μmol/L, and active smoker. The prediction score achieved a mean AUC of 0.848 in the derivation cohort. In the validation cohort, the mean AUC was 0.833. The prediction model was well-calibrated in the two cohorts.ConclusionBased on retrospective data, a prediction score for postoperative delirium in geriatric patients undergoing hip fracture surgery or hip arthroplasty was derived and validated. The performance of the scoring system outperformed the models from previous studies. Although the generalization ability of the score needs to be tested in similar populations, the scoring system will enable delirium risk stratification for hip fracture patients and facilitate the development of strategies for delirium prevention.https://www.frontiersin.org/articles/10.3389/fsurg.2022.919886/fullarthroplastycomplicationship fracturedeliriumprognosis
spellingShingle Jiawei Shen
Youzhong An
Baoguo Jiang
Baoguo Jiang
Baoguo Jiang
Peixun Zhang
Peixun Zhang
Peixun Zhang
Derivation and validation of a prediction score for postoperative delirium in geriatric patients undergoing hip fracture surgery or hip arthroplasty
Frontiers in Surgery
arthroplasty
complications
hip fracture
delirium
prognosis
title Derivation and validation of a prediction score for postoperative delirium in geriatric patients undergoing hip fracture surgery or hip arthroplasty
title_full Derivation and validation of a prediction score for postoperative delirium in geriatric patients undergoing hip fracture surgery or hip arthroplasty
title_fullStr Derivation and validation of a prediction score for postoperative delirium in geriatric patients undergoing hip fracture surgery or hip arthroplasty
title_full_unstemmed Derivation and validation of a prediction score for postoperative delirium in geriatric patients undergoing hip fracture surgery or hip arthroplasty
title_short Derivation and validation of a prediction score for postoperative delirium in geriatric patients undergoing hip fracture surgery or hip arthroplasty
title_sort derivation and validation of a prediction score for postoperative delirium in geriatric patients undergoing hip fracture surgery or hip arthroplasty
topic arthroplasty
complications
hip fracture
delirium
prognosis
url https://www.frontiersin.org/articles/10.3389/fsurg.2022.919886/full
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