Demand or fixed-rate pacemakers?
نویسندگان
چکیده
منابع مشابه
Experience with Devices implanted fixed-rate pacemakers.
The fate of 183 implants of Devices TF 2970 fixed-rate pacemakers is analysed. The incidence of clinical complications such as sepsis or skin necrosis, displacement of the electrode, and exit block, and the causes of the 19 deaths are discussed. In 28 of the 183 pacemakers pacing stopped for technical reasons, which are described; the commonest cause of failure was the batteries. The incidence ...
متن کاملUnusual response of demand pacemakers to magnets.
Most contemporary demand pacemakers contain a magnetic reed switch easily actuated by the application of an external magnet over the pulse generator. This report describes the unusual response of two implanted pulse generators to the testing magnet. The magnetic reed switch of one pulse generator was found to 'stick' in the open position making it impossible to revert the pulse generator to its...
متن کاملCLINICAL INVESTIGATIONS The Advantages of Demand Over Fixed-Rate Pacing*
Clinical experience with both fixed rate and demand pacing suggest5 that the laner mode should probably be utilized in patients with second degree or intermittent high grade A-V block. Instances of venlricular tachycardia and fibrillation foUowiog a propagated pacemaker beat, cnmpetition between sinus rhythm and fixed rate pacing, and rapid ventricular rates due to coupled venhicular premature ...
متن کاملTemporary inhibition of permanently implanted demand pacemakers.
Temporary inhibition of permanently implanted demand pacemakers has been previously described. Demand pacemakers may be inhibited by waving a magnet over the region of the pacemaker generator or by chest wall stimulation. The former may not inhibit most of the bipolar pacemakers, whereas the latter may be time consuming and may casue patient discomfort. Another method is described which utilize...
متن کاملSuppression of demand pacemakers by inactive pacemaker electrodes.
Ventricular inhibited cardiac pacemakers were suppressed by intimate contact of the tip of the active pacemaker electrode with that of the inactive pacemaker electrode in two patients. This contact apparently was sensed as myocardial electrical activity and resulted in variable suppression of pacemaker emission. There was no interference with R-wave sensing function. The threshold for stimulati...
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ژورنال
عنوان ژورنال: The Journal of Thoracic and Cardiovascular Surgery
سال: 1974
ISSN: 0022-5223
DOI: 10.1016/s0022-5223(19)39769-7