- fixed-rate pacemaker
- an artificial cardiac pacemaker set to pace at only a single rate.
Medical dictionary. 2011.
fixed-rate pacemaker
Look at other dictionaries:
Pacemaker — A system that sends electrical impulses to the heart in order to set the heart rhythm. The pacemaker can be the normal natural pacemaker of the heart or it can be an electronic device. The natural pacemaker of the heart is the sinus node, one of… … Medical dictionary
Pacemaker, artificial — A device that uses electrical impulses to regulate the heart rhythm or to reproduce that rhythm. An internal pacemaker is one in which the electrodes into the heart, the electronic circuitry and the power supply are implanted (internally) within… … Medical dictionary
Pacemaker, implantable — A device that uses electrical impulses to regulate the heart rhythm or to reproduce that rhythm. An internal pacemaker is one in which the electrodes into the heart, the electronic circuitry and the power supply are implanted (internally) within… … Medical dictionary
Pacemaker, internal — A device that uses electrical impulses to regulate the heart rhythm or to reproduce that rhythm. An internal pacemaker is one in which the electrodes into the heart, the electronic circuitry and the power supply are implanted (internally) within… … Medical dictionary
rate — 1. A record of the measurement of an event or process in terms of its relation to some fixed standard; measurement is expressed as the ratio of one quantity to another ( e.g., velocity, distance per unit … Medical dictionary
pacemaker — pacemaking, n. /pays may keuhr/, n. 1. pacesetter. 2. Med. an electronic device implanted beneath the skin for providing a normal heartbeat by electrical stimulation of the heart muscle, used in certain heart conditions. 3. Anat., Physiol. any… … Universalium
Artificial pacemaker — A device that uses electrical impulses to regulate the heart rhythm or to reproduce that rhythm. An internal pacemaker is one in which the electrodes into the heart, the electronic circuitry and the power supply are implanted (internally) within… … Medical dictionary
Implantable pacemaker — A device that uses electrical impulses to regulate the heart rhythm or to reproduce that rhythm. An internal pacemaker is one in which the electrodes into the heart, the electronic circuitry and the power supply are implanted (internally) within… … Medical dictionary
atrial demand triggered pacemaker — an artificial cardiac pacemaker that delivers stimuli to the atrium at a fixed rate in the absence of sensed atrial activity; spontaneous cardiac activity triggers pacemaker output, which falls ineffectively in the myocardial refractory period… … Medical dictionary
ventricular demand triggered pacemaker — an artificial cardiac pacemaker that delivers stimuli to the ventricle at a fixed rate in the absence of sensed ventricular activity; spontaneous cardiac activity triggers pacemaker output, which falls ineffectively in the myocardial refractory… … Medical dictionary
