extra beat

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extra beat

Etymology: L, extra, outside; AS, beatan
an extra heart contraction. It is indicated by a premature atrial, junctional, or ventricular complex on an electrocardiogram.


A pulsation or throb (e.g., as in contraction of the heart).

apex beat

The impulse of the heart felt by the hand when held over the fifth or sixth intercostal space in the left midclavicular line.

artificially paced beat

A heartbeat stimulated by an artificial pacemaker.

captured beat

A ventricular contraction directly stimulated by an electrical impulse either from the sinus node or from the pulse generator of a pacemaker.

complex ectopic beat

Any electrical activation of the heart that originates outside the sinoatrial node.

dropped beat

A single interruption in the regular pacing of the electrical and mechanical activity of the heart.

ectopic beat

An electrical impulse that begins at any place in the heart other than the sinoatrial node.

escape beat

A depolarization of the heart that occurs after a prolonged pause or after failure of the sinus node to generate an electric impulse. Most escape beats are generated in the ventricles.

extra beat


forced beat

Extrasystole brought on by artificial heart stimulation.

premature beat

An electrical impulse that arises from a site other than the sinus node in the heart, occurring before the expected sinus beat.
References in periodicals archive ?
One explanation for the findings in this study is that patients sense palpitations because of precursor rhythms that can evolve into AF, such as extra beats or short episodes of arrhythmias," he says.
Speaking about watching the show, Aranka said: "The whole night my heart was beating extra beats, my stomach was turning over, you just can't explain to any body what it's like".
The extra beats usually begin in the pulmonary veins that drain the blood into the top left side of the heart.
And no one, least of all a dying heart attack victim, is going to quibble over three extra beats.
Q: I have been having a feeling of skipped or extra beats and some pounding feelings for quite a while now.
But updating an opera focuses attention on the staging, and this one needed a few extra beats of planning to work out the kinks.
Another change that occurs during pregnancy is a rise of the resting heart rate, which can increase up to 15 extra beats per minute.
Extra beats from the upper chamber of the heart, as well as those from the lower chambers of the heart, can be very bothersome for patients.
Some extra beats that the pacemaker can sense electrically won't result in a pulse that you can feel.
The "pounding" feeling can be due to the heart contracting more forcefully, more quickly, or by having extra beats mixed in to the regular rhythm.
Three months later, in December 2003, Connor was back in the operating theatre, having part of his heart burned away to stop the electrical connection which was causing the extra beats.