Regular wide QRS complex tachycardia during atrial fibrillation in a patient with preexcitation syndrome: a case report.
We report an unusual case of a relatively regular wide QRS complex tachycardia alternating with periods of an irregular narrow QRS complex tachycardia during atrial fibrillation in a patient with Wolff-Parkinson-White syndrome. Both tachycardias resulted from atrial fibrillation, the wide QRS complex tachycardia being due to 2:1 AV conduction of a type I atrial fibrillation across a posteroseptal accessory AV connection.
Gatzoulis
K
K
Department of Medicine, University Hospitals of Cleveland, Ohio 44106, USA.
Carlson
M D
MD
Johnson
N J
NJ
Biblo
L A
LA
Waldo
A L
AL
D000368:Aged; D001281:Atrial Fibrillation / Q000503:physiopathology*; D002304:Cardiac Pacing, Artificial; D004562:Electrocardiography; D004594:Electrophysiology; D006801:Humans; D008297:Male; D011226:Pre-Excitation Syndromes / Q000503:physiopathology*; D013610:Tachycardia / Q000503:physiopathology*