title: Identifying the true origin of sustained monomorphic ventricular tachycardia associated with dilated-phase hypertrophic cardiomyopathy: A case of successful catheter ablation.
abstract: This case report describes sustained monomorphic ventricular tachycardia (VT) caused by a large epicardial scar, related to dilated-phase hypertrophic cardiomyopathy mimicking VT originating from the apical septum. VT resolved with epicardial catheter ablation. The exit of the VT circuit suggested that a 12-lead electrocardiogram can be remote with respect to the critical isthmus in this case. In patients with structural heart disease, it is difficult to identify the VT reentrant circuit by surface electrocardiography, which shows only the exit site. VT originating in the epicardium should be considered, even if the suspected origin is another ventricular site.
authors.affiliation: Division of Cardiology, Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime 791-0295, Japan.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Kawakami
authors.affiliation: Division of Cardiology, Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime 791-0295, Japan.
authors.forename: Takayuki
authors.initials: T
authors.lastname: Nagai
authors.affiliation: Division of Cardiology, Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime 791-0295, Japan.
authors.forename: Akira
authors.initials: A
authors.lastname: Fujii
authors.affiliation: Division of Cardiology, Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime 791-0295, Japan.
authors.forename: Teruyoshi
authors.initials: T
authors.lastname: Uetani
authors.affiliation: Division of Cardiology, Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime 791-0295, Japan.
authors.forename: Kazuhisa
authors.initials: K
authors.lastname: Nishimura
authors.affiliation: Division of Cardiology, Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime 791-0295, Japan.
authors.forename: Katsuji
authors.initials: K
authors.lastname: Inoue
authors.affiliation: Division of Cardiology, Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime 791-0295, Japan.
authors.forename: Jun
authors.initials: J
authors.lastname: Suzuki
authors.affiliation: Department of Cardiology, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan.
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Satomi
authors.affiliation: Division of Cardiology, Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime 791-0295, Japan.
authors.forename: Takafumi
authors.initials: T
authors.lastname: Okura
authors.affiliation: Division of Cardiology, Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime 791-0295, Japan.
authors.forename: Jitsuo
authors.initials: J
authors.lastname: Higaki
authors.affiliation: Division of Cardiology, Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime 791-0295, Japan.
authors.forename: Akiyoshi
authors.initials: A
authors.lastname: Ogimoto
keywords: Bipolar ablation; Dilated-phase hypertrophic cardiomyopathy; Epicardial ablation; Ventricular tachycardia