Cycle length-dependent repolarization changes during atrial fibrillation in the Brugada syndrome.
This is a case report of a patient with Brugada syndrome who developed paroxysmal atrial fibrillation. During the episode, beat-to-beat changes in ventricular repolarization were observed. These changes were a paradoxical ST-segment alteration after a short-coupled ventricular beat. These findings, not reported before, may be helpful for the diagnosis of this syndrome.
Márquez
Manlio F
MF
Department of Electrocardiography and Cardiac Electrophysiology, Instituto Nacional de Cardiología "Ignacio Chávez," Funsalud Mexico City, Mexico.
Medrano
Gustavo
G
Frank
Robert
R
Fontaine
Guy
G
Hermosillo
Antonio G
AG
Cárdenas
Manuel
M
D001281:Atrial Fibrillation / Q000209:etiology* / Q000503:physiopathology*; D002037:Bundle-Branch Block / Q000150:complications*; D004562:Electrocardiography; D006329:Heart Conduction System / Q000503:physiopathology; D006339:Heart Rate; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D013577:Syndrome; D013614:Tachycardia, Paroxysmal / Q000209:etiology* / Q000503:physiopathology*