• Am. J. Surg. · Jul 2014

    Observational Study

    Incidence and risk factors of delirium in the elderly general surgical patient.

    • Steve M M de Castro, Çağdaş Ünlü, Jurriaan B Tuynman, Adriaan Honig, Bart A van Wagensveld, E Philip Steller, and Bart C Vrouenraets.
    • Department of Surgery, Sint Lucas Andreas Hospital, Jan Tooropstraat 164, 1061 AE, Amsterdam, The Netherlands. Electronic address: stevedecastro@me.com.
    • Am. J. Surg. 2014 Jul 1;208(1):26-32.

    BackgroundThis study evaluates the incidence of delirium and risk factors associated with delirium in elderly patients admitted to a general surgical ward.MethodsPatients aged over 60 years who were admitted with an acute or elective general surgical diagnosis were eligible for this prospective cohort study. Risk factors associated with delirium were analyzed using univariate and multivariate analysis to identify those independently associated with delirium.ResultsA total of 209 patients were included in the study. The incidence of delirium was 16.9% (23.2% for acute admission, P < .001). Variables associated with delirium were dementia, presence of an urinary catheter, cognitive decline at admission measured with the mini-mental state examination, white blood cell count >10.0 × 10(9)/L, and urea >7.5 mmol/L. Median length of hospital stay was 13 days (range 3-85) for patients with delirium versus 7 (range 1-54) for patients without (P = .002).ConclusionsThe incidence of delirium is high in elderly patients, especially after an acute admission, leading to an increase in length of hospital stay. To minimize delirium, associated risk factors must be identified and, if possible, treated.Copyright © 2014 Elsevier Inc. All rights reserved.

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