Atrial fibrillation can be caused by a number of different things, but it's generally caused by something which stretches the upper two chambers of the heart. In particular, the left upper chamber of the heart. If it's subject to stress, if it's stretched, atrial fibrillation can occur. When the upper chambers of the heart are stretched, they become sort of ticklish and they start to quiver. So, patients who have atrial fibrillation will often times have high blood pressure or a leaky heart valve or a combination of those things and cause the upper chambers to become stretched and that's what causes atrial fibrillation. In many patients, atrial fibrillation occurs for unknown reasons. Those patients are called "lone atrial fibrillators."They have lone atrial fibrillation and in those patients, there is no obvious identifiable cause for A Fib. They just have it.
Keywords: Dr. Robert S Fishel, atrial, fibrillation, heart, heart attack, cardio, cardiac, cardiology, JFK Medical Center, irregular pulse, palpitations, stroke, EKG, leaky heart valve, high blood pressure, catheter ablation, maze procedure, open heart surgery
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