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QJM Advance Access originally published online on February 20, 2009
QJM 2009 102(4):243-249; doi:10.1093/qjmed/hcp012
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© The Author 2009. Published by Oxford University Press on behalf of the Association of Physicians. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Urinary tract infection after stroke

D.J. Stott, A. Falconer, H. Miller, J.C. Tilston and P. Langhorne

From the Academic Section of Geriatric Medicine, University of Glasgow, Faculty of Medicine, Glasgow Royal Infirmary, Glasgow G31 2ER, UK

Address correspondence to Prof. D.J. Stott, Academic Section of Geriatric Medicine, Third Floor, Queen Elizabeth Building, Glasgow Royal Infirmary, Glasgow G31 2ER, UK. email: d.j.stott{at}clinmed.gla.ac.uk

Received 2 October 2008 and in revised form 16 January 2009


  Abstract

Background: Urinary tract infection (UTI) is a recognized complication of stroke. We aimed to determine the incidence of UTI after acute stroke, the risk factors associated with this complication, and its association with outcome.

Methods: Prospective study of consecutive acute stroke patients admitted to an urban teaching hospital. Routine clinical assessment included the modified National Institutes of Health Stroke Scale (mNIHSS) and modified Rankin scale (mRS). Patients were followed up for 3 months, including recording of clinician diagnosis of UTI.

Results: We studied 412 patients; 65 (15.8%) were diagnosed with UTI, at a median of 14 days (IQR = 4–39) post-stroke. In a binomial multivariate regression analysis, UTI was associated with urinary catheterization (OR = 3.03, 95% CI 1.41–6.52), higher mRS (OR = 1.85, 1.29–2.64) and increasing age (OR = 1.51, 1.13–2.00 for each decade). UTI was associated with death or disability at 3 months, however, this link was attenuated and became non-significant when measures of stroke severity and pre-stroke morbidity were included in a multivariate analysis.

Conclusions: UTI is common after acute stroke. It is associated with urinary catheterization, post-stroke disability and increasing age. Avoidance of catheterization might reduce the incidence of this common complication.


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