title: [A case of intermittent ventricular pre-excitation syndrome with a Mahaim fiber].
abstract: A 61 year-old woman with intermittent ventricular pre-excitation syndrome using a Mahaim fiber was reported. The electrocardiogram showed QRS-complex with small delta wave (100 msec in QRS width) or without small delta wave (80 msec in QRS width). On electrophysiological study, during sinus rhythm, A-H interval was 100 msec. H-V intervals were 25 msec in QRS-complex with small delta wave and 45 msec in QRS-complex without small delta wave. From these findings, it was considered that the small delta wave was produced by a Mahaim fiber.
authors.forename: H
authors.initials: H
authors.lastname: Abe
authors.forename: Y
authors.initials: Y
authors.lastname: Nagamoto
authors.forename: T
authors.initials: T
authors.lastname: Hayakawa
authors.forename: M
authors.initials: M
authors.lastname: Fujita
authors.forename: Y
authors.initials: Y
authors.lastname: Inamoto
authors.forename: S
authors.initials: S
authors.lastname: Sakurai
authors.forename: K
authors.initials: K
authors.lastname: Ninomiya
authors.forename: H
authors.initials: H
authors.lastname: Nandate
authors.forename: A
authors.initials: A
authors.lastname: Kuroiwa
mesh_terms: D004562:Electrocardiography; D004594:Electrophysiology; D005260:Female; D006801:Humans; D008875:Middle Aged; D011226:Pre-Excitation Syndromes / Q000503:physiopathology*; D011227:Pre-Excitation, Mahaim-Type / Q000503:physiopathology*