title: The acute effects of accelerated repetitive Transcranial Magnetic Stimulation on suicide risk in unipolar depression: preliminary results.
abstract: BACKGROUND
  Suicide is a major health concern. Effective acute interventions are lacking. Recent studies have suggested an acute decrease of suicidal ideations following repetitive Transcranial Magnetic Stimulation (rTMS). However, placebo effects could not be excluded. We aimed to evaluate the acute effect of accelerated intermittent theta burst stimulation (TBS) on suicide risk in depression.
  
  
  METHODS
  In 12 suicidal therapy-resistant depressed patients accelerated intermittent TBS was delivered on the left dorsolateral prefrontal cortex in a randomized, sham-controlled cross-over fashion. Patients received 20 sessions spread over 4 days. The change in severity of suicidal ideation was measured by the Beck Scale of Suicidal Ideation (SSI) before and after treatment.
  
  
  RESULTS
  We found a significant decrease of SSI score over time; unrelated to active or sham stimulation. Furthermore, the attenuation of suicidal thinking was not merely related to depression severity changes caused by TBS.
  
  
  CONCLUSIONS
  Accelerated TBS treatment in depressed suicidal patients was found to be safe and well tolerated and may have the potential to acutely decrease suicidal ideations. However, the efficacy compared to sham has not yet been proven and further sham-controlled research including longer follow-up is needed to substantiate these preliminary findings.
authors.affiliation: Institute for Neuroscience, Unit for Suicide Research, Ghent Experimental Psychiatry (GHEP) Lab, Department of Psychiatry, University Hospital Ghent, De Pintelaan 185, 9000 Ghent, Belgium, stefanie.desmyter@ugent.be.
authors.forename: Stefanie
authors.initials: S
authors.lastname: Desmyter
authors.forename: Romain
authors.initials: R
authors.lastname: Duprat
authors.forename: Chris
authors.initials: C
authors.lastname: Baeken
authors.forename: Stijn
authors.initials: S
authors.lastname: Bijttebier
authors.forename: Kees
authors.initials: K
authors.lastname: van Heeringen