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    Surgery vs. Drugs for Irregular Heartbeat

    But safety issues may still make medications better choice for many patients, experts say

    WebMD News from HealthDay

    By Brenda Goodman

    HealthDay Reporter

    TUESDAY, Feb. 18, 2014 (HealthDay News) -- Surgery works better, but has more serious side effects, than the standard drugs used to treat occasional bouts of atrial fibrillation, a new study reveals.

    Atrial fibrillation is a condition where the heart's normally precise electrical system goes out of whack, causing the upper chambers to beat rapidly and erratically. These fluttering heartbeats allow blood to pool inside the heart, increasing the risk for clots that may travel to the brain and cause a stroke.

    The condition currently affects nearly 3 million Americans and is on the rise as the population ages, according to the U.S Centers for Disease Control and Prevention.

    Guidelines advise doctors to use medications as a first step to get the condition under control.

    "The medications have virtually no side effects. These are exceedingly well tolerated, simple, safe medications that have been around for 20 or 30 years," said Dr. Hugh Calkins, director of the cardiac arrhythmia service at Johns Hopkins Hospital, in Baltimore.

    But Calkins, who wrote an editorial on the new study but was not involved in the research, said that strategy comes with a catch: "The drugs only work in 40 to 50 percent of patients."

    The new study, published in the Feb. 19 issue of the Journal of the American Medical Association, was designed to see if surgery could be a reasonable first option for patients instead of medication.

    Researchers randomly assigned 127 patients who were newly diagnosed with atrial fibrillation to either drug therapy or a surgical procedure called ablation.

    In ablation, surgeons use a small, heated probe to destroy certain areas of the heart's upper left chamber in a bid to block the faulty electrical signals, according to the U.S. National Heart, Lung, and Blood Institute.

    For the study, patients ranged in age from 18 to 75, but most were in their mid-50s. They were also considered to be in the early stages of atrial fibrillation, where racing heartbeats usually ease up on their own, without the need to shock the heart back into its regular rhythm.

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