Copyright © 2004 by the European Society of Cardiology.
Clinical research
Stroke patients with atrial fibrillation have a worse prognosis than patients without: data from the Austrian Stroke registry
II. Med. Department, Krankenanstalt Rudolfstiftung, Vienna, Austria
Received November 19, 2003; revised June 20, 2004; accepted June 24, 2004 * Corresponding author. Address: Steingasse 31/18, A-1030 Wien, Austria. Tel.: +43-1-713-98-70; fax: +43-1-713-98-70/+43-1711652209 (E-mail: claudia.stoellberger{at}chello.at).
See page 1670 for the editorial comment of this article (doi:10.1016/j.ehj.2004.08.005)
AIMS: Stroke patients with atrial fibrillation (AF) have a poorer neurological outcome than stroke patients without AF. Whether stroke patients with AF also have a higher rate of medical complications is unknown. The aim of the study was to compare the in-hospital course of acute stroke patients with and without AF.
METHODS AND RESULTS: The Austrian Stroke registry was a prospective multi-centre study involving 57 medical departments documenting the hospital course of consecutive stroke patients from June 1999 to October 2000. AF was diagnosed in 304 (31%) of 992 patients. Patients with AF were older (79 versus 75 years, p<0.0004) than no-AF patients. There were more cases of pneumonia (23% versus 9%, p<0.0004), pulmonary oedema (12% versus 6%, p<0.0004) and symptomatic intracerebral haemorrhage (8% versus 2%, p<0.0004) in AF compared to no-AF. In-hospital mortality was higher in AF (25% versus 14%, p<0.0004), and neurological outcome was poorer (65 versus 90 Barthel index, p<0.0004). On multivariable logistic regression analysis, however, AF was no predictor for mortality, but a Barthel index of zero (odds ratio 5.30, 95% CI 3.10–9.08, p<0.0001), a National Institutes of Health Stroke Scale >21 or comatose (odds ratio 3.13, 95% CI 2.26–4.32, p<0.0001), age >75 years (odds ratio 3.15, 95% CI 1.85–5.37, p<0.0001), heart rate >100 min–1 (odds ratio 2.15, 95% CI 1.26–3.66, p=0.0049), obstructive pulmonary disease (odds ratio 2.58, 95% CI 1.03–6.48, p=0.0442) and creatinine >125 μmol/l (odds ratio 1.84, 95% CI 1.00–3.37, p=0.0479).
CONCLUSION: Stroke in AF is associated with a poor prognosis, an increased rate of medical and neurological complications and a higher in-hospital mortality than in no-AF.
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