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Atrial fibrillation and coronary artery disease
1Department of Cardiology, Rui Jin Hospital, Shanghai Second Medical University.
Insights
Atrial fibrillation occurred in 10.7% of patients undergoing cardiac catheterization. The incidence was significantly lower in patients with coronary artery disease compared to those with valvular disease or cardiomyopathy.
Area of Science:
- Cardiology
- Electrophysiology
Background:
- Atrial fibrillation is a common arrhythmia.
- Its association with coronary artery disease requires further investigation.
Purpose of the Study:
- To determine the incidence of atrial fibrillation in patients undergoing coronary arteriography and left ventricular catheterization.
- To compare the incidence of atrial fibrillation across different cardiac conditions.
Main Methods:
- Retrospective study of 703 consecutive patients.
- Inclusion of patients with coronary stenosis, myocardial infarction, normal coronary angiography, valvular disease, and cardiomyopathy.
- Documentation of clinical and electrocardiographic evidence of atrial fibrillation.
Main Results:
- Overall incidence of atrial fibrillation was 10.7% (75 patients).
- Incidence varied significantly by group: Group I (coronary stenosis without MI): 1.5%, Group II (MI history): 3.8%, Group III (normal angiography): 11%, Group IV (valvular disease): 37.5%, Group V (cardiomyopathy): 33.3%.
- Lower occurrence in patients with coronary artery disease (Groups I and II) compared to Groups III, IV, and V.
Conclusions:
- Atrial fibrillation is rarely found in coronary artery disease.
- Valvular heart disease and cardiomyopathy are associated with a higher incidence of atrial fibrillation.
Abstract:
A retrospective study of the incidence of atrial fibrillation in 703 consecutive patients who had undergone selective coronary arteriography and left ventricular catheterization between November 1986 and May 1992 was undertaken. The study group included 136 patients with significant coronary stenosis (> 50% diameter reduction) without previous myocardial infarction (group I), 157 with a history of myocardial infarction (group II), 326 with chest pain and normal coronary angiography (group III), 72 with valvular disease (group IV), and 12 with cardiomyopathy (group V). Clinical and electrocardiographic evidence of atrial fibrillation was documented in 75 patients (10.7%), including 2 (1.5%) in group I, 6 (3.8%) in group II, 36 (11%) in group III, 27 (37.5%) in group IV, and 4 (33.3%) in group V. The rate of occurrence of atrial fibrillation was lower in groups I and II than in groups III, IV and V. Atrial fibrillation was rarely found in coronary artery disease.