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[Atrial fibrillation during myocardial infarction with and without ST segment elevation]
Archives Des Maladies Du Coeur Et Des Vaisseaux
|July 13, 2005
Summary
Atrial fibrillation (AF) occurs in 7.6% of acute myocardial infarction (MI) patients, irrespective of ST segment elevation. This condition is linked to increased mortality and ventricular arrhythmias in MI patients.
Area of Science:
- Cardiology
- Clinical Medicine
- Internal Medicine
Context:
- Atrial fibrillation (AF) is a frequent complication during acute myocardial infarction (MI), contributing to increased hospital mortality.
- The prognostic impact and incidence of AF in MI patients, with or without ST segment elevation, require further definition.
Purpose:
- To determine the incidence, predictive factors, and prognostic impact of AF within the first 24 hours of MI.
- To compare AF occurrence and outcomes in ST-elevation MI (STEMI) versus non-ST-elevation MI (NSTEMI) patients.
Summary:
- This study analyzed 1701 MI patients, finding AF in 7.6% within 24 hours, with identical incidence in STEMI (7.6%) and NSTEMI (7.7%).
- Independent predictors of AF included Killip class >2 and chronic obstructive pulmonary disease.
- AF presence significantly correlated with ventricular arrhythmias and/or cardiovascular mortality in both STEMI and NSTEMI groups.
Impact:
- The study highlights that AF incidence and its associated poor prognosis are consistent across MI types, regardless of ST segment elevation.
- Findings emphasize the importance of monitoring for AF in all acute MI patients due to its significant adverse outcomes.