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Pacemaker Spike Alternans: An Artifact of Digital Signal Processing
Author(s) -
ENGLER ROBERT L.,
GOLDBERGER ARY L.,
BHARGAVA VALMIK,
KAPELUSZNIK DAVID
Publication year - 1982
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.1982.tb02312.x
Subject(s) - spike (software development) , medicine , artifact (error) , polarity (international relations) , signal (programming language) , generator (circuit theory) , cardiology , artificial intelligence , computer science , cell , physics , power (physics) , genetics , software engineering , quantum mechanics , biology , programming language
Marked variability in the amplitude or polarity of pacemaker artifacts may be a clue to generator malfunction or partial electrode fracture. We report a case where “pacemaker spike alternans” occurred factitiously as a result of a digital “roll‐over” effect. The widespread introducfion of digital electrocardiographs into clinical practice makes recognition of such artifacts important, (PACK, Vol. 5, September‐October, 1982)