title: Significance of ST-segment depression during supraventricular tachycardia. Clues offered by its return to normal at the end of the episode.
abstract: The finding of transient ST-segment depression during episodes of supraventricular tachycardia is common but its ischemic significance is usually uncertain. Several authors came to the conclusion that in the absence of positive myocardial scintigraphy these alterations are not associated with a coronary flow-limiting stenosis. Our report tends to confirm this view but we suggest to observe the evolution of ST-segment changes at the very end of the episodes; these mechanisms have not been adequately addressed in previous studies and could provide useful clues to the ischemic or non-ischemic origin of ST-segment abnormalities.
authors.affiliation: U.O. di Cardiologia Azienda Ospedaliera S. Maria della Misericordia Piazzale S. Maria della Misericordia, 15 33100 Udine. slavich@adriacom.it
authors.forename: Gianaugusto
authors.initials: G
authors.lastname: Slavich
authors.forename: Daisy
authors.initials: D
authors.lastname: Pavoni
authors.forename: Luigi
authors.initials: L
authors.lastname: Badano
authors.forename: Malgorzata
authors.initials: M
authors.lastname: Popiel
mesh_terms: D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013617:Tachycardia, Supraventricular / Q000503:physiopathology*