title: Does power matter with ECT?
abstract: BACKGROUND
  To assess the incidence of depressed inpatients requiring high output ECT and the response of this group compared with a group requiring standard output ECT.
  
  
  METHODS
  We reviewed the records of 59 consecutive inpatients that were treated with bilateral ECT between January 2001 and January 2004. Diagnosis of major depression was based on DSM IV criteria. Response and remission to ECT (respectively defined as a 50% reduction in score and a score of < or = 7 on the Hamilton Rating Scale for Depression; HRSD) of both groups were compared.
  
  
  RESULTS
  Of the 59 patients, 13 (22%) required high output ECT. These patients needed significantly more ECT treatments than patients in the standard dose group (16.4+/-7.1 versus 10.4+/-4.5; p=0.01). In total, 31 of 46 patients (67%) requiring standard output ECT and 11 of the 13 patients (85%) requiring high output ECT responded to ECT. This difference is not significant.
  
  
  CONCLUSIONS
  This study has a retrospective nature and a rather homogenous sample.
  
  
  CONCLUSIONS
  In this study 1 in 5 of the depressed inpatients needs a high dose energy of bilateral ECT to induce an adequate seizure. The efficacy of ECT in these patients is similar to that in the standard dose group. Considering these facts, high output ECT devices should be available for use in routine clinical practice.
authors.affiliation: Department of Psychiatry, Erasmus Medical Centre, PO Box 2040, 3000 CA Rotterdam, The Netherlands.
authors.forename: Michel R
authors.initials: MR
authors.lastname: Ju
authors.forename: Tom K
authors.initials: TK
authors.lastname: Birkenhäger
authors.forename: Walter W
authors.initials: WW
authors.lastname: van den Broek
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003865:Major Depressive Disorder / Q000175:diagnosis / Q000523:psychology / Q000628:therapy*; D004565:Electroconvulsive Therapy / Q000379:methods* / Q000592:standards; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D016896:Treatment Outcome