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KMID : 0123520150220020057
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Journal of muscle and joint health
2015 Volume.22 No. 2 p.57 ~ p.66
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Postoperative Delirium in Elderly Patients with Osteoarthritis Surgery: Incidence and Risk Factors
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Park Eun-A
Kim Min-Young
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Abstract
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Purpose: The purpose of this study was to evaluate the incidence of postoperative delirium in elderly patients with osteoarthritis surgery and identify risk factors for its development.
Methods: This study enrolled 288 patients who underwent osteoarthritis surgery in a hospital between May and November 2014. Data were collected prospectively. The Nursing Delirium Screening Scale was used to detect delirium. Multivariable logistic regression analysis was used to identify independent risk factors for postoperative delirium. Patients were also followed for outcome.
Results: Postoperative delirium developed in 42 patients (14.6%). Logistic regression analysis identified old age, low physical activity, antipsychotic agents, number of catheters, and intensive care unit admission as risk factors. Worse outcomes, including increased hospital mortality, reoperation, and discharge at care facilities, occurred in subjects who developed delirium.
Conclusion: Osteoarthritis surgery in elderly patients was associated with a high incidence of postoperative delirium. The results of the this study regarding patient populations vulnerable to delirium should be taken into account so that such patients could be identified preoperatively or in the immediate postoperative period.
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KEYWORD
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Elderly, Delirium, Osteoarthritis, Surgery, Risk factors
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