Q:

Is afib with RVR a serious heart condition?

A:

Quick Answer

Rapid ventricular response, or RVR, is a serious complication of atrial fibrillation and requires medical treatment, according to Healthline. On its own, atrial fibrillation, sometimes abbreviated afib or AF, may or may not be a serious condition depending on its symptoms and complications.

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Full Answer

In AF with RVR, abnormal electrical impulses cause the heart to beat in an abnormal rhythm, resulting in the heart's ventricles, or lower chambers, beating too fast. A patient experiencing atrial fibrillation with RVR typically has the sensation of a fluttering or overly rapid heartbeat, explains Healthline. RVR is dangerous because it causes the ventricles to fail to pump blood out of the heart sufficiently and can lead to a heart attack.

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