Transesophageal echocardiographic evidence of more pronounced left atrial stunning after chemical (propafenone) rather than electrical attempts at cardioversion from atrial fibrillation

We studied left atrial function in 55 patients undergoing electrical (n = 23) or chemical (intravenous administration of propafenone, n = 32) attempts at cardioversion from atrial fibrillation. Chemical attempts at cardioversion revealed a significant increase in spontaneous echo contrast and a sign...

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Bibliographic Details
Published in:The American journal of cardiology 1999-11, Vol.84 (9), p.1092-1096
Main Authors: Antonielli, Emanuele, Pizzuti, Alfredo, Bassignana, Antonia, Tanga, Mattia, Baralis, Giorgio, Rovere, Maria Elena, Di Leo, Margherita
Format: Article
Language:English
Subjects:
Adult
Aged
Anti-Arrhythmia Agents - administration & dosage
Anti-Arrhythmia Agents - adverse effects
Antiarythmic agents
Atrial Fibrillation - diagnostic imaging
Atrial Fibrillation - therapy
Biological and medical sciences
Blood Flow Velocity - drug effects
Cardiac arrhythmia
Cardiology
Cardiovascular system
Drug therapy
Echocardiography, Doppler
Echocardiography, Transesophageal
Electric Countershock
Female
Humans
Infusions, Intravenous
Male
Medical sciences
Middle Aged
Myocardial Stunning - chemically induced
Myocardial Stunning - diagnostic imaging
Pharmacology. Drug treatments
Propafenone - administration & dosage
Propafenone - adverse effects
Thrombosis - chemically induced
Thrombosis - diagnostic imaging
Ultrasonic imaging
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Description
Summary:We studied left atrial function in 55 patients undergoing electrical (n = 23) or chemical (intravenous administration of propafenone, n = 32) attempts at cardioversion from atrial fibrillation. Chemical attempts at cardioversion revealed a significant increase in spontaneous echo contrast and a significant decrease in left atrial appendage Doppler flow, even in patients who did not have successful conversion to sinus rhythm.
ISSN:0002-9149
1879-1913
DOI:10.1016/S0002-9149(99)00508-1