title: Lack of effect of ECT on Holter monitor recordings before and after treatment.
abstract: OBJECTIVE
  There has been concern about persisting cardiac effects of electroconvulsive therapy (ECT). Several studies have analyzed Holter monitor recordings before and after ECT, and generally have found no significant effects.
  
  
  METHODS
  As part of a study on heart rate variability changes in ECT, we performed 2-3 hour Holter monitoring before and at least 1 hour after courses of ECT in 11 depressed patients without cardiac illness.
  
  
  RESULTS
  There was no significant difference before and after Ect in heart rate, frequency ofventricular or supraventricular events, or in ST segments.
  
  
  CONCLUSIONS
  These date provide further evidnece of the general cardiac safety of ECT.
authors.affiliation: Department of Psychiatry and Psychology, Mayo Clinic, Rochester, Minnesota 55905, USA. rasmussen.keith@mayo.edu
authors.forename: Keith G
authors.initials: KG
authors.lastname: Rasmussen
authors.forename: Victor M
authors.initials: VM
authors.lastname: Karpyak
authors.forename: Stephen C
authors.initials: SC
authors.lastname: Hammill
mesh_terms: D000328:Adult; D000368:Aged; D003866:Depressive Disorder / Q000628:therapy; D015716:Electrocardiography, Ambulatory; D004565:Electroconvulsive Therapy / Q000009:adverse effects*; D005260:Female; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged