ISSN: 1859 - 2872
Clinical characteristics, changes in left atrial diameter, left ventricle diameter and ejection fraction on echocardiography in chronic heart failure patients with atrial fibrillation
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Abstract
Objective: To investigate clinical characteristics, the changes in left atrial diameter, left ventricle diameter and ejection fraction in chronic heart failure patients with atrial fibrillation. Subject and method: 155 chronic heart failure patients were divided into 2 groups: (1) 65 patients with atrial fibrillation and (2) 90 patients without atrial fibrillation. Patients were clinically examined, 12-lead ECG recording, blood test, echocardiography. Result: Average diameter of the left atrium of the chronic heart failure with atrial fibrillation group was higher than that of the chronic heart failure without atrial fibrillation group (46.62 ± 9.63 versus 37.9 ± 6.86mm), p<0.001. There was 7.69% chronic heart failure patients with atrial fibrillation had thrombosis in heart’s chambers. The left ventricular diameter was not statistically different in the two groups (51.01 ± 9.72mm vs 52.45 ± 12.21mm), p>0.05. The left ventricular ejection fraction of the chronic heart failure with atrial fibrillation group was lower than that of the chronic heart failure without atrial fibrillation group (45.60 ± 16.52% vs 51.47 ± 14.06%), p<0.05). In chronic heart failure patients with atrial fibrillation, there were 80% patients over 60 years old, 72.31% patients with NYHA III-IV, 63.08% patients with rapid ventricular rate. Conclusion: Chronic heart failure with atrial fibrillation was common in elderly patients, and severe heart failure (NYHA III-IV). Chronic heart failure patients with atrial fibrillation had a faster heart rate, an increased diameter of the left atrium and a lower of left ventricular ejection fraction compared with heart failure without atrial fibrillation. The left ventricular diameter was not statistically different in the two groups.
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References
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