Surgical procedure urged for atrial fibrillation

Study finds catheter ablation is highly effective when medication doesn't work. The irregular-heartbeat disorder, once considered benign, is now seen as a precursor to stroke that needs treatment. People with atrial fibrillation, a common type of irregular heartbeat, should be referred for a surgical treatment called catheter ablation if an oral medication is not effective, said the authors of a study released Tuesday.

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