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Condition Center


Arrhythmia is an irregular heartbeat caused by abnormal electrical impulses in the heart. Scary as it sounds—heart beating too slowly, too quickly, or skipping a beat—arrhythmia is not uncommon and often harmless. Some arrhythmias, however, can increase the risk of stroke, blood clots, and cardiac arrest, and are more serious for those with heart failure or heart disease. Arrhythmia symptoms can include dizziness, lightheadedness, or shortness of breath.

Arrhythmia News

  • Fish Oil Won’t Prevent Irregular Heartbeat After Cardiac Surgery: Study

    By E.J. MundellHealthDay Reporter MONDAY, Nov. 5 (HealthDay News) — A hoped-for effect of fish oil supplements in preventing an irregular heartbeat that often follows heart surgery did not materialize in a major new trial. Fish oil capsules with omega-3 fatty acids given in the days before and after surgery failed to stop the post-op onset of [...]

  • Heart-Implant Shocks Can Make Sex Frightening

    MONDAY, November 14, 2011 (Health.com) — Getting kicked in the chest by a horse—that’s how cardiologist Steven Cook, MD, describes what it feels like when an implanted defibrillator shocks the heart. And fear of that shock is making it difficult for many patients with these devices to enjoy sex, according to new research Dr. Cook [...]

  • Irregular Heartbeat Linked to Raised Death Risk in Women

    By Serena GordonHealthDay Reporter TUESDAY, May 24 (HealthDay News) — Women newly diagnosed with an irregular heartbeat known as atrial fibrillation have a significantly higher risk of death than women without this condition, suggests new research. Analyzing data on more than 34,000 middle-aged women, researchers found that women with recently diagnosed atrial fibrillation had an all-cause [...]

  • Sleep Disorder Linked to Heart Rhythm Problems

    FRIDAY, May 20 (HealthDay News) — People with an implantable cardiac defibrillator and a breathing disorder that occurs during sleep are at greater risk for potentially deadly heart problems during the night, new research suggests. An implantable cardiac defibrillator (ICD) is a device that monitors heart rhythm and corrects an abnormal heartbeat with an electrical shock. [...]

  • Gene Variant Linked to Sudden Cardiac Death Risk in Blacks

    FRIDAY, May 13 (HealthDay News) — A common gene variant among black people may be linked to the development of life-threatening heart arrhythmias (when the heart beats too fast, too slow or irregularly), according to a new study. In pinpointing this gene, Duke University Medical Center researchers hope to one day help doctors determine which [...]

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