What are the causes of atrial fibrillation?

Cardiac	Mitral and aortic valve disease Hypertension Myocardial infarction/ischaemia Heart failure Myocarditis Pericarditis
Respiratory	Pulmonary embolus Pneumonia
Metabolic	Thyrotoxicosis Alcohol or stimulant drugs Acute hypoxia/hypercapnia
Other	Idiopathic Post surgery (particularly cardiothoracic) Fever

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