Or like it skipped a beat? You may be experiencing heart palpitations, which can feel like your heart is beating too fast, pumping too hard, or fluttering. Usually lasting only a few seconds ...

Atrial flutter occurs when a “reentrant” circuit is present, causing a repeated loop of electrical activity to depolarize the atrium at a rate of about 250 to 350 beats per minute; the atrial ...

Heart palpitations are heartbeats that suddenly become more noticeable. Palpitations can feel like the heart skips a beat, or it is pounding, fluttering, or beating irregularly. A person may ...

Atrial flutter is similar to atrial fibrillation in that the rhythm originates in the atrium and causes a narrow complex tachycardia, which carries thromboembolic risk. Typical atrial flutter ...