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Radiotherapy to patients with artificial cardiac pacemakers
Cancer Treatment Reviews, 2005The in vitro studies show that the modern cardiac pacemakers utilising the complementary metal-oxide semi-conductor (CMOS) circuitry can be adversely affected by therapeutic radiation. However, the published clinical data are sparse regarding the safety of radiotherapy delivery to patients with artificial pacemakers.
Sundar, S, Symonds, RP, Deehan, C
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Tachycardia and Death Due to an Artificial Pacemaker
Annals of Internal Medicine, 1965Excerpt Chronic complete heart block is compatible with life as long as a steady idioventricular rhythm continues and the beat remains above 40/min.
H. Mastroyannis +3 more
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Depression of artificial pacemakers by extraneous impulses
American Heart Journal, 1967Abstract Analysis of iatrogenic electrical arrhythmias serves to validate the assumptions postulated through the study of clinical electrocardiograms. Other disorders of rhythm, without clinical counterpart, have also become apparent. The recently introduced demand pacemaker functions as a pacemaker that is artificial and automatic, yet not ...
Agustin Castellanos +5 more
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The Artificial Pacemaker: A Historical Overview
2020Since the advent of electricity, it was postulated that control of the heartbeat could potentially save countless lives. But artificially pacing the heart remained a dream for most of human history. In this chapter, the author discusses the contributions of several pioneers in the field of cardiac pacing from the mid-twentieth century to today.
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Cardiac arrhythmias related to artificial pacemakers
Journal of Electrocardiology, 1971Summary Various cardiac arrhythmias related to artificial pacemakers are described in detail, and representative electrocardiographic illustrations are presented. The importance of recognizing malfunction of various pacemakers has been emphasized. An early manifestation of malfunction should be suspected even when the pre-set rate is altered by only ...
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Recognizing Digitalis Toxicity in Patients With Artificial Pacemakers
Postgraduate Medicine, 1973In a patient with ventricular rhythm induced by an artificial cardiac pacemaker, the clue to diagnosis of digitalis intoxication lies in electrocardiographic recognition of altered atrial mechanism, particularly the appearance of retrograde P waves. Recognition of ventricular premature contractions is also very important.
Edward K. Chung, Donald K. Chung
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Guide to the use of Artificial Pacemakers
Postgraduate Medicine, 1972In comparison with the fixed-rate pacemaker, the demand type of artificial pacemaker has the advantage of avoiding competition between natural and pacemaker rhythms. Demand pacemaker function can be tested with a special external device that temporarily speeds the rate.
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Accurate Electrocardiographic Measurement of the Rate of Artificial Pacemakers
Annals of Internal Medicine, 1973Abstract A new method accurately (2 msec, 0.2 beats/minute) measures the cycle length of artificial pacemakers with the conventional electrocardiograph and the 60-Hz AC interference artifact.
John B. Kostis, William Fearn
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The contribution of artificial pacemaking to understanding the pathogenesis of arrhythmias
The American Journal of Cardiology, 1971Abstract Right atrial or ventricular pacing was performed on 36 occasions in 26 patients in an attempt to terminate a variety of tachyarrhythmias. Of 16 episodes of atrial flutter, 13 were terminated successfully; in 9 of the 13, sinus rhythm or the patient's pre-flutter rhythm was restored immediately, whereas in 4 patients, intervening atrial ...
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