pacing

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pacing

 [pās´ing]
1. regulation of the rate of a physiologic process, such as by providing timed stimuli.
biventricular pacing that in which a lead is used to deliver current directly to the left ventricle, in addition to those used to deliver current to the right atrium and ventricle, so that the ventricles can be induced to pump in synchrony.
cardiac pacing regulation of cardiac rhythm (or the rate of contraction of the heart muscle) with electrical stimuli from a pulse generator or an artificial pacemaker.
diaphragm pacing (diaphragmatic pacing) electrophrenic respiration.
dual chamber pacing control of the heart rate by means of an artificial pacemaker that paces, senses, or does both in the atria and in the ventricles.
single chamber pacing control of the heart rate by an artificial pacemaker that paces and senses in either atria or ventricles, usually in the latter.
transthoracic pacing a system of single or dual chamber epicardial pacing in which the electrode wires are sewn directly onto the epicardium and brought out through an incision in the chest wall. See also epicardial pacemaker.
transvenous pacing a system of single or dual chamber endocardial pacing in which the electrode wires are passed through veins into the right atrium or ventricle. See also transvenous pacemaker.

pacing

Cardiology The timing of a physiologic event. See Burst pacing, Demand pacing, DDDR pacing, Dual-chamber pacing, Overdrive pacing, Physiologic pacing, Ramp pacing, Rate responsive pacing, Safety pacing, Transvenous pacing, Underdrive pacing.

pacing

Controlling the rate of an activity, especially the heart rate, usually by electronic devices, such as PACEMAKERS.
References in periodicals archive ?
In reference to mitral regurgitation (MR), which is closely tied to LVOT obstruction and symptoms in HCM, a study of 23 patients revealed that dual chamber pacing significantly reduces LVOT gradient and the regurgitant volume in the absence of organic mitral valve abnormalities (other than leaflet elongation) (29).
A comparison of dual chamber pacing and septal myectomy for patients with drug refractory symptoms was undertaken at the Mayo Clinic.
Dual chamber pacing in hypertrophic cardiomyopathy: long-term effects on diastolic function.
The importance of ventricular septal morphology in the effectiveness of dual chamber pacing in hypertrophic obstructive cardiomyopathy.
Dual chamber pacing in hypertrophic cardiomyopathy: influence of atrioventricular delay on left ventricular outflow tract obstruction.