Risk Factors of Postoperative Delirium in Elderly Patients with Hip Fractures

Ki-Hwan Kim; Duk-Hwan Kho; Ju-Yong Shin; Jin-Yong Choi; Eung-Sik Kim; Dong-Heon Kim

doi:10.12671/jkfs.2008.21.3.189

Journal List > J Korean Fract Soc > v.21(3) > 1037644

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Kim, Kho, Shin, Choi, Kim, and Kim: Risk Factors of Postoperative Delirium in Elderly Patients with Hip Fractures

Original Article

Journal of the Korean Fracture Society 2008; 21(3): 189-194.

Published online: 31 July 2008

DOI: https://doi.org/10.12671/jkfs.2008.21.3.189

Risk Factors of Postoperative Delirium in Elderly Patients with Hip Fractures

Ki-Hwan Kim, M.D., Duk-Hwan Kho, M.D., Ju-Yong Shin, M.D., Jin-Yong Choi, M.D., Eung-Sik Kim, M.D., Dong-Heon Kim, M.D.

Department of Orthopedic Surgery, Konkuk University Chungju Hospital, College of Medicine, Konkuk University, Chungju, Korea.

Address reprint requests to: Dong-Heon Kim, M.D. Department of Orthopedic Surgery, Konkuk University Chungju Hospital, College of Medicine, Konkuk University, 620-5, Gyohyeon 2-dong, Chungju 380-704, Korea. Tel: 82-43-840-8250, Fax: 82-43-844-7300, patella13@naver.com

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose

To find out the relationship between various risk factors and post-operative delirium in elderly patients with hip fractures.

Materials and Methods

Out of 135 patients older than 65 years old who underwent the surgery for hip fracture in our department, between the periods of March 2003 to March 2005, 14 patients (10.4%) developed post-operative delirium and 121 patients (89.6%) did not. We studied risk factors of post-operative delirium in two groups.

Results

In chi-square test between delirium group and non-delirium group, the patients were more likely to develop post-operative delirium if they had previous episodes of delirium, abnormal cognitive function, low walking ability before admission, high dependency on ADL (Activities of Daily Living), other medical accompanying diseases, history of dementia, post-operative hypoxia, post-operative electrolyte imbalance, low post-operative hemoglobin and hematocrit, low post-operative albumin and were older than 75 years old (p<0.05). Sex, type of fracture, anesthesia and the time between admission and operation did not show much difference between the two groups.

Conclusion

The risk factors of postoperative delirium in elderly patients with hip fracture have a tendency to be multifactorial. Therefore, we conclude that being prepared by thorough understanding of the risk factors and their relationships will help prevent post-operative delirium and result in good postoperative prognosis.

Keywords: Post-operative delirium, Hip fracture, Risk factors

Figures and Tables

Table 1

Classification of walk ability

Table 2

Comparision of various factors between the post-operative delirium and the control group

Table 3

Comparision of post-operative laboratory data between the post-operative delirium and the control group

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