A fluttering of the heart is called

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A fluttering of the heart is called a palpitation. A palpitation is an abnormal awareness of the heartbeat, whether it is too fast, too slow, or irregular. Cardiac arrest, paroxysmal tachycardia, and ventricular fibrillation are all serious heart conditions that involve an abnormal heartbeat, but they are not specific to fluttering sensations. Cardiomegaly refers to an enlarged heart, which may or may not be accompanied by abnormal heartbeats.

A Fluttering of the Heart Is Called