title: Idiopathic Premature Ventricular Contraction Conducting over a Ventricle Myocardial Extension from the Pulmonary Artery.
abstract: Ventricle myocardial extensions (VMEs) from the right ventricular outflow tract to the pulmonary artery (PA) serve as arrhythmogenic foci for idiopathic ventricular arrhythmias (VAs). Although an autopsy study revealed the heterogeneity of the VME, only the electrocardiographic features of PA-VAs arising from septal VMEs have been discussed. Here, we describe a case of idiopathic PA-VAs conducting over a VME accompanied by unique ventricle activation patterns, which contributed to the appearance of an S wave in the inferior limb leads despite an arrythmogenic focus in the outflow tract.
authors.affiliation: Department of Electrophysiology, Heart Center, Leipzig, Sachsen, Germany. hyamasaki@mail.goo.ne.jp.
authors.forename: Hiro
authors.initials: H
authors.lastname: Yamasaki
authors.affiliation: Department of Electrophysiology, Heart Center, Leipzig, Sachsen, Germany.
authors.forename: Livio
authors.initials: L
authors.lastname: Bertagnolli
authors.affiliation: Department of Electrophysiology, Heart Center, Leipzig, Sachsen, Germany.
authors.forename: Gerhard
authors.initials: G
authors.lastname: Hindricks
authors.affiliation: Department of Electrophysiology, Heart Center, Leipzig, Sachsen, Germany.
authors.forename: Arash
authors.initials: A
authors.lastname: Arya
mesh_terms: D001145:Arrhythmias, Cardiac / Q000503:physiopathology*; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008875:Middle Aged; D011651:Pulmonary Artery / Q000503:physiopathology*; D016278:Ventricular Function, Right / Q000502:physiology*
keywords: premature ventricular contraction; pulmonary artery; ventricular myocardial extension