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Profound Hypotension Due to Slow Atrioventricular Nodal Pathway Conduction during Atrial Tachycardia
Author(s) -
NAZARIAN SAMAN,
DONG JUN,
TOMASELLI GORDON F.,
MARINE JOSEPH E.
Publication year - 2009
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.1540-8159.2008.02216.x
Subject(s) - medicine , cardiology , tachycardia , supraventricular tachycardia , hemodynamics , nodal , left bundle branch block , anesthesia , heart failure
Paroxysmal supraventricular tachycardia (SVT) may have a variety of hemodynamic effects depending on rate, patient volume status, and presence of structural heart disease or left bundle branch block. We report a case of a patient with atrial tachycardia and dual atrioventricular (AV) nodal physiology who developed profound hypotension during transition from fast to slow AV nodal pathway conduction, despite similar tachycardia cycle length. This case illustrates the potential importance of AV timing in determining the hemodynamic effect of SVT.