ectopic beat

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Related to Ectopic beats: Ventricular Ectopic Beats, Atrial Ectopic Beats

beat

 [bēt]
a throb or pulsation, as of the heart or of an artery.
apex beat the beat felt over the apex of the heart in the point of maximal impulse.
atrial beat an ectopic beat originating in an atrium.
capture beat
1. a heartbeat resulting from the production of a ventricular complex by a supraventricular source following a period of atrioventricular dissociation.
2. in cardiac pacing terminology, the successful pacing of the heart by a pulse generator.
dropped beat absence of one ventricular contraction.
echo beat reciprocal beat.
ectopic beat a heartbeat originating at some point other than the sinus node.
escape beat (escaped beat) heartbeats that follow an abnormally long pause.
forced beat an extrasystole produced by artificial stimulation of the heart.
fusion beat in electrocardiography, a P or QRS complex that results from the concurrent activation of the atria or the ventricles by two stimuli in the same chambers. An atrial fusion beat results when the sinus beat coincides with an atrial ectopic beat, when two atrial ectopic beats coincide, or when an atrial or sinus beat coincides with retrograde conduction from a junctional focus. A ventricular fusion beat results when a ventricular beat coincides with a sinus beat, a ventricular ectopic beat, or a junctional beat.
junctional beat an ectopic beat originating at the atrioventricular junction; see also junctional rhythm.
premature beat a cardiac event resulting from discharge by an atrial, junctional, or ventricular focus before the next expected sinus beat and at an interval from the last sinus beat that is shorter than its own intrinsic rhythm.
reciprocal beat a heartbeat resulting from an atrial or ventricular complex caused by a return of an impulse to its chamber of origin; called also echo beat.
sinus beat a heartbeat with sinus rhythm.
ventricular beat an ectopic beat originating in a ventricle.

ec·top·ic beat

a cardiac beat originating elsewhere than at the sinuatrial node.

ectopic beat

Etymology: Gk, ek, out, topos, place; AS, beatan
an impulse that originates in the heart at a site other than the sinus node. Also called extrasystole.

ectopic beat

Spontaneous ectopic depolarization

ec·top·ic beat

(ek-top'ik bēt)
A cardiac beat originating elsewhere than at the sinuatrial node.

beat

a throb or pulsation, as of the heart or of an artery.

apex beat
the palpable shock caused by the apex of the heart beating against the chest wall with each systole and felt over the apex of the heart, normally in the fifth left intercostal space. May be replaced by a thrill.
Enlarge picture
Palpitation of the apex beat. By permission from Hinchcliff KW, Kaneps AJ, Equine Sports Medicine and Surgery, Saunders, 2004
capture b's
occasional ventricular responses to a sinus impulse that reaches the atrioventricular node in a nonrefractory phase.
ectopic beat
a heartbeat originating at some point other than the sinus node.
escaped b's
heartbeats that follow an abnormally long pause.
forced beat
an extrasystole produced by artificial stimulation of the heart.
fusion beat
in electrocardiography, the complex resulting when an ectopic ventricular beat coincides with normal conduction to the ventricle.
premature beat
an extrasystole.
References in periodicals archive ?
As shown in table 3 and 4, we found a significant difference in terms of the mean numbers of total extra systoles and isolated ectopic beats between pure lidocaine with lidocaine + epinephrine and prilocaine with octapressin were significant in the second hour following the injection.
Differences for the mean numbers of isolated ectopic beats Mean Rank Isolated ectopic beats 1.
Multiple ectopic beats may lead to a rapid uncoordinated heartbeat (ventricular fibrillation) that can cause death.
An ectopic beat occurs shortly after a normal beat and is followed by a longer than usual interval.
Although palpitations and ectopic beats can feel unpleasant, they're usually harmless and don't mean anything is wrong with your heart.
On admission, the patient showed a prolonged QT interval, ventricular ectopic beats, and runs of torsades de pointes tachycardia.
Recent clinical studies show that pulmonary veins (PVs) are an important source of ectopic beats, which could initiate paroxysmal tachyarrhythmias and AF, especially in the presence of certain cardioactive agents.