Cognitive Effects of High-Frequency rTMS in Schizophrenia Patients With Predominant Negative Symptoms: Results From a Multicenter Randomized Sham-Controlled Trial

Cognitive impairments are one of the main contributors to disability and poor long-term outcome in schizophrenia. Proof-of-concept trials indicate that repetitive transcranial magnetic stimulation (rTMS) applied to the left dorsolateral prefrontal cortex (DLPFC) has the potential to improve cognitive functioning. We analyzed the effects of 10-Hz rTMS to the left DLPFC on cognitive deficits in schizophrenia in a large-scale and multicenter, sham-controlled study. A total of 156 schizophrenia patients with predominant negative symptoms were randomly assigned to a 3-week intervention (10-Hz rTMS, 15 sessions, 1000 stimuli per session) with either active or sham rTMS. The Rey Auditory Verbal Learning Test, Trail Making Test A and B, Wisconsin Card Sorting Test, Digit Span Test, and the Regensburg Word Fluency Test were administered before intervention and at day 21, 45, and 105 follow-up. From the test results, a neuropsychological composite score was computed. Both groups showed no differences in any of the outcome variables before and after intervention. Both groups improved markedly over time, but effect sizes indicate a numeric, but nonsignificant superiority of active rTMS in certain cognitive tests. Active 10-Hz rTMS applied to the left DLPFC for 3 weeks was not superior to sham rTMS in the improvement of various cognitive domains in schizophrenia patients with predominant negative symptoms. This is in contrast to previous preliminary proof-of-concept trials, but highlights the need for more multicenter randomized controlled trials in the field of noninvasive brain stimulation..

Medienart:

Artikel

Erscheinungsjahr:

2016

Erschienen:

2016

Enthalten in:

Zur Gesamtaufnahme - volume:42

Enthalten in:

Schizophrenia bulletin - 42(2016), 3, Seite 608

Sprache:

Englisch

Beteiligte Personen:

Hasan, Alkomiet [VerfasserIn]
Guse, Birgit [Sonstige Person]
Cordes, Joachim [Sonstige Person]
Wölwer, Wolfgang [Sonstige Person]
Winterer, Georg [Sonstige Person]
Gaebel, Wolfgang [Sonstige Person]
Langguth, Berthold [Sonstige Person]
Landgrebe, Michael [Sonstige Person]
Eichhammer, Peter [Sonstige Person]
Frank, Elmar [Sonstige Person]
Hajak, Göran [Sonstige Person]
Ohmann, Christian [Sonstige Person]
Verde, Pablo E [Sonstige Person]
Rietschel, Marcella [Sonstige Person]
Ahmed, Raees [Sonstige Person]
Honer, William G [Sonstige Person]
Malchow, Berend [Sonstige Person]
Karch, Susanne [Sonstige Person]
Schneider-Axmann, Thomas [Sonstige Person]
Falkai, Peter [Sonstige Person]
Wobrock, Thomas [Sonstige Person]

Links:

www.ncbi.nlm.nih.gov

BKL:

44.91

RVK:

RVK Klassifikation

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

OLC197478892X