Table 1. Etiologies of Atrial Fibrillation |
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1. Atrial pressure elevation (leading to dilatation) |
Valvular disease: mitral/tricuspid regurgitation or stenosis, mitral valve prolapse |
Systolic or diastolic dysfunction |
Hypertrophic cardiomyopathy (HCM) |
Pulmonary hypertension (COPD with cor pulmonale) |
Pulmonary embolism |
Intracardiac thrombi or tumor |
2. Inflammatory and infiltrative process |
Pericarditis/myocarditis |
Amyloidosis |
Sarcoidosis |
Age induced atrial fibrosis |
3. Infectious process |
Any infections and fever |
4. Endocrine disorders |
Hyperthroidism |
Pheochromocytoma |
5. Neurogenic |
Stroke |
Subarachnoid hemorrhage |
6. Atrial ischemia |
Myocardial infarction |
7. Drugs |
Alcohol (holiday heart) |
Caffeine |
8. Idiopathic |
Lone afib if less than 60 years old |
9. Familial |