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Atrial fibrillation after stroke in the elderly.

P J Friedman1

  • 1Stroke Unit, Waikato Hospital, Hamilton, New Zealand.

Stroke
|February 1, 1991
PubMed
Summary

Atrial fibrillation patients had higher mortality post-stroke, but this was not an independent predictor. Other factors like age and stroke severity better explained survival differences.

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Area of Science:

  • Cardiology
  • Neurology
  • Gerontology

Background:

  • Atrial fibrillation is a common arrhythmia.
  • Stroke is a leading cause of mortality and disability.
  • The relationship between atrial fibrillation and stroke outcomes requires further investigation.

Purpose of the Study:

  • To investigate the association between atrial fibrillation and mortality following stroke.
  • To determine if atrial fibrillation is an independent predictor of survival after stroke.

Main Methods:

  • Study population: 353 patients (186 men, 167 women) from the Waikato Stroke Registry.
  • Data collection: Admission electrocardiogram, clinical assessments, and chest radiographs.
  • Statistical analysis: Proportional hazards modeling to assess predictors of mortality.

Main Results:

  • 23% of patients had atrial fibrillation on admission.
  • Atrial fibrillation patients were older and had more severe stroke deficits.
  • Mortality was higher in the atrial fibrillation group, but this was not an independent predictor after adjusting for other factors.

Conclusions:

  • Atrial fibrillation is associated with increased mortality after stroke.
  • Factors such as age, stroke severity, and comorbidities independently predict survival.
  • Atrial fibrillation itself is not an independent predictor of mortality post-stroke.

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