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.
None had any indications for conventional pacemaker therapy.
Pacemaker therapy is not devoid of complications; therefore, in neurally mediated syncope, it seems prudent to limit pacemaker use to a few selected, recurrent, severely symptomatic patients with asystole who are particularly prone to injuries.
et al; Adverse Effect of Ventricular Pacing on Heart Failure and Atrial Fibrillation Among Patients with Normal Baseline QRS Duration in a Clinical Trial of Pacemaker Therapy for Sinus Node Dysfunction; Circulation (2003); 107: 2932 - 7.
With these approvals, physicians in Japan now have two sophisticated devices that treat the complexities of heart failure by combining pacemaker therapy, ICD (implantable cardioverter defibrillator) therapy and cardiac resynchronization therapy:
Accurate atrial sensing is especially important when using pacemaker therapy for patients with atrial tachyarrhythmia," said Dr.
fainting due to an abnormally slow heart rate) who may benefit from pacemaker therapy.
Vitatron first introduced digital technology for pacemakers with its C-series device in September 2003, and the follow-up introduction of the T-series expands Vitatron's commitment to advancing pacemaker therapy with digital signal processing.