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Electrograms from the Coronary Sinus in Acute Myocardial Infarction: Implications for Electrocardiographic Guidance of Pacing Catheters
Author(s) -
WALLACE WAYNE A.,
NAPODANO RUDOLPH J.,
MATHEW P.K.
Publication year - 1979
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.1540-8159.1979.tb05181.x
Subject(s) - medicine , cardiology , myocardial infarction , coronary sinus , sinus (botany) , botany , biology , genus
Intracardiac dectrocardiography has been reported to be the most reliable of the techniques used for guiding placement of transvenous pacing catheters. When a catheter electrode is in contact with the right ventricular apical endocardium, the intracordiac electrogram demonstrutes marked ST segment elevation and, usually, a very large S wave. The case presented indicates that both of these features of the intracardiac electrogram should be sought since ST segment elevation alone may represent epicardid recording of an acute myocardial infarction when the catheter electrode is in the coronary venous system.