pacemaker

(redirected from rate-responsive pacemaker)
Also found in: Dictionary, Thesaurus, Medical.

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 ?
The findings suggest that provision of anaesthesia and electroconvulsive therapy inpatients with cardiac pacemakers, including rate-responsive pacemakers, is a safe undertaking, with no extra precautions being needed except for routine ECG monitoring.
The Tempo(TM) DR shares the distinction of being the world's smallest dual- chamber, rate-responsive pacemaker with the recently released Pacesetter META DDDR device (Model 1256D).
The device works both as a defibrillator and rate-responsive pacemaker, and provides protection against sudden cardiac arrest (SCA), a condition that causes more than 225,000 deaths each year in the United States.