Mapping and ablation of trigger premature ventricular contractions in a case of electrical storm associated with ischemic cardiomyopathy

Taro Okada; Takumi Yamada; Yoshimasa Murakami; Naoki Yoshida; Yuuichi Ninomiya; Junji Toyama

doi:10.1111/j.1540-8159.2007.00689.x

Mapping and ablation of trigger premature ventricular contractions in a case of electrical storm associated with ischemic cardiomyopathy

Taro Okada, Takumi Yamada, Yoshimasa Murakami, Naoki Yoshida, Yuuichi Ninomiya, Junji Toyama

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Abstract

We report a case of polymorphic ventricular tachycardia and ventricular fibrillation (PVT/VF) storm associated with ischemic cardiomyopathy (ICM). The electrocardiogram (ECG) monitor revealed frequent premature ventricular contractions (PVCs) initiated PVT/VF. Electroanatomic mapping revealed the plausible origins of PVCs were located in the scar border zone at the posterior septum of the left ventricle. Purkinje-like potentials (PLPs) always preceded PVCs and a decremental property for the PLPs and infarcted myocardium junction was observed. Ablation at these sites eliminated both PVCs and PVT/VF.

Original language	English (US)
Pages (from-to)	440-443
Number of pages	4
Journal	PACE - Pacing and Clinical Electrophysiology
Volume	30
Issue number	3
DOIs	https://doi.org/10.1111/j.1540-8159.2007.00689.x
State	Published - Mar 2007
Externally published	Yes

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AU - Yoshida, Naoki

AU - Ninomiya, Yuuichi

AU - Toyama, Junji

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N2 - We report a case of polymorphic ventricular tachycardia and ventricular fibrillation (PVT/VF) storm associated with ischemic cardiomyopathy (ICM). The electrocardiogram (ECG) monitor revealed frequent premature ventricular contractions (PVCs) initiated PVT/VF. Electroanatomic mapping revealed the plausible origins of PVCs were located in the scar border zone at the posterior septum of the left ventricle. Purkinje-like potentials (PLPs) always preceded PVCs and a decremental property for the PLPs and infarcted myocardium junction was observed. Ablation at these sites eliminated both PVCs and PVT/VF.

AB - We report a case of polymorphic ventricular tachycardia and ventricular fibrillation (PVT/VF) storm associated with ischemic cardiomyopathy (ICM). The electrocardiogram (ECG) monitor revealed frequent premature ventricular contractions (PVCs) initiated PVT/VF. Electroanatomic mapping revealed the plausible origins of PVCs were located in the scar border zone at the posterior septum of the left ventricle. Purkinje-like potentials (PLPs) always preceded PVCs and a decremental property for the PLPs and infarcted myocardium junction was observed. Ablation at these sites eliminated both PVCs and PVT/VF.

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Mapping and ablation of trigger premature ventricular contractions in a case of electrical storm associated with ischemic cardiomyopathy

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