Pacemaker arrhythmias and electrocardiographic recognition of pacemakers

A. Castellanos, L. Lemberg

Research output: Contribution to journalArticlepeer-review


Adequate interpretation of pacemaker arrhythmias requires a thorough knowledge of the clinical situation in which they appear, the type of pacemaker, and modality of stimulation used, as well as knowledge of the corresponding electronic specifications. At times this information is essential to reach the correct diagnosis. The significant features of the various (atrial, ventricular, or sequential atrioventricular) pacemakers are stressed placing special emphasis on the most used pacing system, namely, the transvenous QRS inhibited (demand) ventricular pacemaker. Arrhythmias specific to the latter which could be seen during its normal or abnormal function included magnet induced vagaries and significant shortening of lengthening of automatic (spike to spike) and escape (natural to QRS) intervals. Obtaining the maximal efficiency from artificial pacemakers requires the cooperation of patient, manufacturer, cardiovascular surgeon, and clinical cardiologist. (Journal received: May, 1975)

Original languageEnglish (US)
Pages (from-to)197-206
Number of pages10
Volumevol. 40
StatePublished - Jan 1 1973

ASJC Scopus subject areas

  • Medicine(all)


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