pacemaker

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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 ?
Interesting: we are now seeing a merging of pacemaker therapy for this condition and defibrillator therapy for the conditions that patients are at risk for--namely, sudden death.
19 /PRNewswire/ -- For patients who need implantable cardioverter defibrillators (ICDs) to control abnormal heart rhythms, simple ventricular backup pacemaker therapy provides better outcomes than supporting the heart rhythm with more sophisticated stimulation of both the right atrium and right ventricle, according to research to be published Dec.
This novel miniaturization of the pacemaker changes the delivery of pacemaker therapy from a surgical procedure with a chest wall incision to a non-surgical percutaneous one.
The efficacy of pacemaker therapy was questioned after two recent trials (7, 8); which failed to prove the superiority of pacing over placebo in 'unselected' patients with positive tilt table testing (mostly without cardioinhibition).
Jude Medical is eager to explore the use of different stimulation modes to provide optimal pacemaker therapy for ablate and pace patients," said Daniel J.
The potential reduction of unnecessary right ventricular pacing (%VP) has been an important debate in today's cardiac pacemaker therapy as it is directly correlated with the incidence of comorbidities and associated risks.
patient follow-up and the total cost of pacemaker therapy.