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Vol. 26, No. 1, 2008
Issue release date: July 2008
Section title: Original Research Article
Dement Geriatr Cogn Disord 2008;26:1–8
(DOI:10.1159/000140611)

Long-Term Cognitive Outcome of Delirium in Elderly Hip Surgery Patients

A Prospective Matched Controlled Study over Two and a Half Years

Kat M.G.a · Vreeswijk R.a · de Jonghe J.F.M.a · van der Ploeg T.b · van Gool W.A.c · Eikelenboom P.c, d · Kalisvaart K.J.a
aDepartment of Geriatric Medicine and bPieter van Foreest Institute for Education and Research, Medical Center Alkmaar, Alkmaar, cDepartment of Neurology, Academic Medical Center, University of Amsterdam, and dDepartment of Psychiatry, Vrije Universiteit, Amsterdam, The Netherlands

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Article / Publication Details

First-Page Preview
Abstract of Original Research Article

Accepted: 2/4/2008
Published online: 7/9/2008
Issue release date: July 2008

Number of Print Pages: 8
Number of Figures: 1
Number of Tables: 2

ISSN: 1420-8008 (Print)
eISSN: 1421-9824 (Online)

For additional information: http://www.karger.com/DEM

Abstract

Objective: To study the outcome of delirium in elderly hip surgery patients. Design: Prospective matched controlled cohort study. Hip surgery patients (n = 112) aged 70 years and older, who participated in a controlled clinical trial of haloperidol prophylaxis for delirium, were followed for an average of 30 months after discharge. Patients with a diagnosis of dementia or mild cognitive impairment (MCI) were identified using psychiatric interviews. Proportions of patients with dementia/MCI were compared across patients who had postoperative delirium and selected control patients matched for preoperatively assessed risk factors who had not developed delirium during index hospitalization. Other outcomes were mortality rate and rate of institutionalization. Results: During the follow-up period, 54.9% of delirium patients had died compared to 34.1% of the controls (relative risk = 1.6, 95% CI = 1.0–2.6). Dementia or MCI was diagnosed in 77.8% of the surviving patients with postoperative delirium and in 40.9% of control patients (relative risk = 1.9, 95% CI = 1.1–3.3). Half of the patients with delirium were institutionalized at follow-up compared to 28.6% of the controls (relative risk = 1.8, 95% CI = 0.9–3.4). Conclusion: The risk of dementia or MCI at follow-up is almost doubled in elderly hip surgery patients with postoperative delirium compared with at-risk patients without delirium. Delirium may indicate underlying dementia.

© 2008 S. Karger AG, Basel


Article / Publication Details

First-Page Preview
Abstract of Original Research Article

Accepted: 2/4/2008
Published online: 7/9/2008
Issue release date: July 2008

Number of Print Pages: 8
Number of Figures: 1
Number of Tables: 2

ISSN: 1420-8008 (Print)
eISSN: 1421-9824 (Online)

For additional information: http://www.karger.com/DEM


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