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Unusual QRS Morphology on ECG: A Rare Condition and an Interesting Response to Pacing
Author(s) -
GULA LORNE J.,
ECKART ROBERT E.,
KLEIN GEORGE J.,
PERALTA ADELQUI
Publication year - 2005
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.1540-8159.2005.00177.x
Subject(s) - medicine , qrs complex , intracardiac injection , cardiology , electrocardiography , electrophysiology , electrophysiology study , cardiac pacing , atrial fibrillation , catheter ablation
We present the interesting case of a young man with borderline wide QRS complexes noted on electrocardiogram (ECG). The diagnosis of an unusual form of preexcitation was reached using observations from intracardiac tracings at electrophysiology study. Atrial pacing consistently resulted in further widening of the first conducted QRS complex, and the physiology underlying this unusual finding is explored.