title: A case of vagally mediated idiopathic ventricular fibrillation.
abstract: BACKGROUND
  A 25-year-old woman experienced three episodes of syncope over the course of 2 years. The attacks all occurred just after she had sat down, and two were accompanied by convulsions. She had no obvious prodromes and no personal or family history of cardiovascular disease.
  
  
  METHODS
  Electrocardiography, chest radiography, echocardiography, cerebral and cardiac MRI, electroencephalography, 24 h Holter monitoring, electrophysiological study with drug provocation testing and heart-rate variability analysis.
  
  
  METHODS
  Vagally mediated ventricular fibrillation initiated by premature ventricular complexes arising from the right ventricular outflow tract.
  
  
  RESULTS
  Catheter ablation was performed at the right ventricular outflow tract and an implantable cardioverter-defibrillator was fitted.
authors.affiliation: Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan.
authors.forename: Masaharu
authors.initials: M
authors.lastname: Kataoka
authors.forename: Seiji
authors.initials: S
authors.lastname: Takatsuki
authors.forename: Kojiro
authors.initials: K
authors.lastname: Tanimoto
authors.forename: Makoto
authors.initials: M
authors.lastname: Akaishi
authors.forename: Satoshi
authors.initials: S
authors.lastname: Ogawa
authors.forename: Hideo
authors.initials: H
authors.lastname: Mitamura
mesh_terms: D000328:Adult; D017115:Catheter Ablation; D017147:Defibrillators, Implantable; D004452:Echocardiography; D004554:Electric Countershock / Q000295:instrumentation; D004562:Electrocardiography; D015716:Electrocardiography, Ambulatory; D022062:Electrophysiologic Techniques, Cardiac; D005260:Female; D006321:Heart / Q000294:innervation*; D006339:Heart Rate; D006801:Humans; D008279:Magnetic Resonance Imaging; D019462:Syncope, Vasovagal / Q000209:etiology* / Q000503:physiopathology / Q000628:therapy; D014630:Vagus Nerve / Q000503:physiopathology*; D014693:Ventricular Fibrillation / Q000150:complications / Q000209:etiology* / Q000503:physiopathology / Q000628:therapy; D018879:Ventricular Premature Complexes / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology / Q000628:therapy