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 ?
Ismail MM, Badreldin AMA, Heldwein M, Hekmat K (2010) Third-generation mobile phones (UMTS) do not interfere with permanent implanted pacemakers.
Over 50% of implanted pacemakers are rate-adaptive--where the pacemaker matches the pacing to the activity level of the patient (Allen 2006).
S should stand out more clearly: is an implanted pacemaker a medical treatment that, once begun, can be withdrawn?
Recently, the use of the CHA2DS2-VASc score in predicting stroke and death has extended beyond AF patients [sup][4],[5],[6],[7] and was reported to show a significant association with stroke and death in patients with sick sinus syndrome (SSS) and implanted pacemakers from the DANPACE study.
Cardiac conduction disorder, associated with hypertension and diabetes in the elderly patients accounts for almost 40% of all permanently implanted pacemakers in the US2.
Soose and other researchers implanted pacemakers in 125 apnea patients, who were instructed to turn the devices on each night for a year.
Conditions treated by permanently implanted pacemakers and ICDs include bradycardia (a slow heartbeat of less than 60 beats per minute), ventricular tachycardia (rapid heartbeat), ventricular Fibrillation (irregular heartbeat), and heart failure.
Severe chronic pacemaker-pocket pain is a relatively infrequent late complication (<1 2]) of both subcutaneous and subpectorally implanted pacemakers.