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Risk factors of delirium in patients undergoing total knee arthroplasty

Title
Risk factors of delirium in patients undergoing total knee arthroplasty
Author
최충혁
Keywords
Total knee arthroplasty; Delirium; Risk factor
Issue Date
2015-06
Publisher
ELSEVIER IRELAND LTD
Citation
ARCHIVES OF GERONTOLOGY AND GERIATRICS, v. 60, NO 3, Page. 443-447
Abstract
Although postoperative delirium is a complicated disorder in elderly individuals, no study has been examined the risk factors associated with perioperative comorbidities and clinical laboratory data while specifically focusing on only total knee arthroplasty (TKA). In the present retrospective study, we aimed to evaluate the incidence and perioperative risk factors of postoperative delirium after TKA. Between April 2009 and May 2013, 287 patients (365 knees) aged ˃ 65 years who had undergone primary TKA were enrolled. These patients were assigned to the delirium group of 11 patients (11 knees) or the non-delirium group of 276 patients (354 knees). The incidence of delirium among the patients was 3.1% (11/ 365). Univariate logistic regression analysis indicated that a history of dementia, older age, lower body mass index (BMI) level, and a postoperative day 3 blood urea nitrogen (BUN) level of ˃ 14.9 mg/dL were risk factors. However, multivariate logistic regression analysis indicated that a history of dementia (adjusted odds ratio [AOR]: 10.4, [1.09, 100]), older age (AOR: 1.15, [1.01, 1.31]), and a postoperative day 3 BUN level of ˃ 14.9 mg/dL (AOR: 4.76, [1.15, 19.7]) were independent risk factors. Based on our findings, we believe that the surgeons should be careful to avoid the postoperative delirium and ensure the appropriate management for patients who have these risk factors. (C) 2015 Elsevier Ireland Ltd. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S0167494315000308http://hdl.handle.net/20.500.11754/25799
ISSN
0167-4943; 1872-6976
DOI
10.1016/j.archger.2015.01.021
Appears in Collections:
COLLEGE OF MEDICINE[S](의과대학) > MEDICINE(의학과) > Articles
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