title: Electroconvulsive therapy-induced Wolff-Parkinson-White syndrome: a case report.
abstract: OBJECTIVE
  Wolff-Parkinson-White (WPW) syndrome is characterized by premature ventricular excitation due to the presence of an abnormal accessory pathway. Electrocardiography (ECG) of patients with WPW syndrome portrays a short PR interval and a wide QRS interval with a delta wave.
  
  
  METHODS
  Herein, we report the case of a patient with schizophrenia who developed a wide QRS interval with a delta wave immediately following electroconvulsive therapy (ECT).
  
  
  RESULTS
  Initially, the delta wave disappeared within 2 days after ECT. However, the duration of the delta wave increased exponentially to 4 months when ECT was repeated.
  
  
  CONCLUSIONS
  Although the patient's cardiocirculatory dynamics remained normal, we continued to monitor her ECG until the delta wave disappeared because WPW syndrome can lead to serious arrhythmia.
authors.affiliation: Department of Psychiatry, National Defense Medical College, Saitama 3598513, Japan.
authors.forename: Shingo
authors.initials: S
authors.lastname: Enomoto
authors.forename: Aihide
authors.initials: A
authors.lastname: Yoshino
authors.forename: Bonpei
authors.initials: B
authors.lastname: Takase
authors.forename: Tatsuro
authors.initials: T
authors.lastname: Kuwahara
authors.forename: Yasutaka
authors.initials: Y
authors.lastname: Tatsuzawa
authors.forename: Soichiro
authors.initials: S
authors.lastname: Nomura
mesh_terms: D000328:Adult; D001921:Brain / Q000503:physiopathology; D004562:Electrocardiography; D004565:Electroconvulsive Therapy / Q000009:adverse effects*; D004569:Electroencephalography; D005260:Female; D006321:Heart / Q000503:physiopathology; D006801:Humans; D014927:Wolff-Parkinson-White Syndrome / Q000209:etiology* / Q000503:physiopathology
keywords: Arrhythmia; Autonomic nervous system; Electroconvulsive therapy; Schizophrenia; WPW syndrome