What are the causes of Atrial Flutter/Fibrillation?

Causes of Atrial Flutter/Fibrillation

• Coronary artery disease including acute MI
• Hypertension
• Valvular heart disease especially rheumatic mitral valve disease
• Thyrotoxicosis
• Myocarditis
• Cardiomyopathy
• Pericarditis
• Bronchial carcinoma
• Severe Pneumonia/Severe pneumonia
• Chronic lung disease
• Pulmonary emboli
• Wolff-Parkinson-White syndrome
• Alcohol abuse
• Cocaine abuse
• Idiopathic (lone AF): in case of atrial fibrillation

Source: 

• Rapid Review of Clinical Medicine for MRCP Part 2 second Edition: Q-138
• Davidsons Principles and Practice of Medicine 23 edition