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 ?
Hemostatic Dressings position these products for use within subcutaneous tissue which will impact how bleeding is controlled in procedures such as cosmetic plastic surgery, breast augmentation and reconstruction, dermatological procedures like Mohs micrographic surgery and punch biopsies, epicardial pacemaker placement, and burn and wound debridement.
In the first stage, following median sternotomy a pocket for the generator was prepared at the left pectoral area and a new permanent epicardial pacemaker (St Jude Medical Identity ADxSR SSIR 5180,REF:1084T-54CM) was implanted .