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Differentiation of Arrhythmias by Measurement of Intracardiac Pressures in Man
Author(s) -
BEAUREGARD LOUANNE M.,
VOLOSIN KENT J.,
WAXMAN HARVEY L.
Publication year - 1991
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.1540-8159.1991.tb05085.x
Subject(s) - medicine , cardiology , supraventricular tachycardia , intracardiac injection , ventricular tachycardia , ventricular pacing , supraventricular arrhythmia , hemodynamics , tachycardia , heart rate , anesthesia , blood pressure , heart failure , atrial fibrillation
Antitachycardia devices currency use sustained high rate, abrupt changes in cycle length, and probability density function to determine the onset of ventricular tachycardia. Hemodynamic changes occur with the onset of tachycardia and may provide a method of discriminating supraventricular from ventricular tachycardia. In this study, patients had atrial and ventricular pressures measured during rapid atrial and ventricular pacing. Right atrial pressure increased significantly with ventricular pacing but not with atrial pacing. Right ventricular pressures did not significantly differ with atrial or ventricular pacing. The change in atrial pressure compared to baseline was greater, with ventricular pacing compared to atria] pacing. Right ventricular pressure increased compared to baseline with atrial or ventricular pacing, but there was no significant difference between pacing modalities. Measurement of right atrial pressure might prove useful in discriminating supraventricular from ventricular tachycardia.