Cardiology and Cardiothoracic Surgery/Atrial Fibrillation

Atrial fibrillation

Atrial fibrillation is the commonest arrhythmia that occurs in human, it affects 1%of the population world wide. It is wisely recognised due to thromboembolism complicating it's presence.

Pathophysiology

Many theories were advocated, however the most acceptable theory is the presence of re-entry circuits in left atrium around origin of pulmonary veins. This theory has affected the management in the electrophysiology lab.