pacemaker

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Related to pacemaking: fixed rate pacemaker, demand pacemaker

pacemaker

1. Anatomy a small area of specialized tissue within the wall of the right atrium of the heart whose spontaneous electrical activity initiates and controls the beat of the heart
2. Med an electronic device for use in certain cases of heart disease to assume the functions of the natural cardiac pacemaker

pacemaker

[′pās‚māk·ər]
(medicine)
A pulsed battery-operated oscillator implanted in the body to deliver electric impulses to the muscles of the lower heart, either at a fixed rate or in response to a sensor that detects when the patient's pulse rate slows or ceases. Also known as cardiac pacemaker; heart pacer.
References in periodicals archive ?
Knowing that traffic problems can upset all plans in a 1,200-metre sprint, Bouresly said jockey Mick Kinane could be forced to resort to pacemaking tactics to ensure his horse had the best chance.
His stablemate and 100-1 outsider, River Tiber, fulfilled his pacemaking duties up front but was ignored by the other runners and had skipped 10 lengths clear at the halfway stage.
55, Haile Gebrselassie will have almost perfect pacemaking to help him achieve that feat.
The Kenyan starts favourite to clock well under 13 minutes and, if the British trio assist each other with sensible pacemaking, they could all easily squeeze under the required Athens standard.
In the 1950s, when television was only in black and white, so were the rules: there must be no outside assistance, whether coaching advice from the sidelines, or - heaven forbid - pacemaking.
By installing the first Cray Research supercomputer in the eastern region of Germany, we provide a pacemaking effect on supercomputing and research here.
Besides running the world's largest pacemaking business with sales of more than $1 billion, he is is familiar with Medtronic's substantial semiconductor business dedicated to implantable devices.
Luca Cumani, trainer of Roseburg He's by no means a definite runner as we may yet need him for pacemaking duties for Postponed in the Prix Foy at Longchamp.
Those who made the trip were greeted with warm conditions and, with pacemaking spot on, lifetime bests were there for the taking.
Coosan Lad, an odds-on favourite, had his race won a long way from home and had 15 lengths to spare over the pacemaking Tachbury (Jo Buck) at the finish.
Gibbs, who like Hanmer, rides out for Tim Vaughan, took the first on Michael Bassett's Fresh's Fever, which won by eight lengths from the pacemaking Cousinade, and the second on No More Whispers which made all to win by 10 lengths from Little Thorp.
MOON DICE, trained by Paul Flynn and ridden by Tom Doyle, collared the pacemaking Fosters Cross to land the Guinness Galway Handicap Hurdle at 20-1.