title: J wave pattern in unexplained syncope.
abstract: J wave pattern (JWP), characterized by J-point elevation in the anterolateral or inferior leads of the 12-lead electrocardiogram, has been associated with increased risk for idiopathic ventricular fibrillation and mortality. However, its prevalence in syncope of different etiologies is unknown and was evaluated in this study. The study sample comprised 170 consecutive patients with vasovagal syncope or syncope that remained unexplained after complete work-up. JWP in inferior leads and with a horizontal/descending ST-segment is more frequently found in subjects with unexplained syncope than in subjects with vasovagal syncope. This finding may be linked with worse prognosis of unexplained syncope.
authors.affiliation: Department of Electrophysiology, Heart Center Leipzig, Leipzig, Germany. Electronic address: Susanneloebe@hotmail.com.
authors.forename: Susanne
authors.initials: S
authors.lastname: Löbe
authors.affiliation: Department of Electrophysiology, Heart Center Leipzig, Leipzig, Germany.
authors.forename: Jelena
authors.initials: J
authors.lastname: Kornej
authors.affiliation: Department of Electrophysiology, Heart Center Leipzig, Leipzig, Germany.
authors.forename: Arash
authors.initials: A
authors.lastname: Arya
authors.affiliation: Department of Electrophysiology, Heart Center Leipzig, Leipzig, Germany.
authors.forename: Gerhard
authors.initials: G
authors.lastname: Hindricks
authors.affiliation: Department of Electrophysiology, Heart Center Leipzig, Leipzig, Germany.
authors.forename: Andreas
authors.initials: A
authors.lastname: Bollmann
authors.affiliation: Department of Electrophysiology, Heart Center Leipzig, Leipzig, Germany.
authors.forename: Daniela
authors.initials: D
authors.lastname: Husser
mesh_terms: D000328:Adult; D000368:Aged; D003937:Diagnosis, Differential; D004562:Electrocardiography / Q000379:methods* / Q000706:statistics & numerical data*; D005260:Female; D005858:Germany / Q000453:epidemiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D015203:Reproducibility of Results; D018570:Risk Assessment; D012680:Sensitivity and Specificity; D013575:Syncope / Q000175:diagnosis* / Q000453:epidemiology*
keywords: Electrocardiogram; J wave pattern; Syncope