Why the study?
Does intracardiac electrogram during electrode withdrawal improve the diagnosis of right ventricular perforation compared to standard ECG in patients with endocardial pacemakers?
Does intracardiac electrogram during electrode withdrawal improve the diagnosis of right ventricular perforation compared to standard ECG in patients with endocardial pacemakers?
Intracardiac electrograms during electrode withdrawal provide a diagnostic method for identifying right ventricular perforation by pacemaker electrodes when standard ECG is inconclusive.
Intracardiac electrogram during withdrawal may aid perforation diagnosis when ECG is inconclusive; hypothesis-generating and requires prospective validation.
The diagnosis of right ventricular perforation by an endocardial pacemaker electrode should be suspected when failure of pacing occurs without electrode displacement. Although a number of changes occur on the standard electrocardiogram (ECG), none of these are diagnostic. The intracardiac electrogram performed during electrode withdrawal is not only diagnostic of perforation but can also aid in electrode positioning. Two case reports highlight these changes in the intracardiac electrogram. The first case also illustrates that, with electrode perforation, the ability to sense the intrinsic intracardiac electrical activity may be retained.
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Mond et al. (1978) studied this question.
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