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Predictive response factors of repetitive transcranial magnetic stimulation in treatment-resistant depression

Published online by Cambridge University Press:  23 March 2020

B. Calvet
Affiliation:
Esquirol Hospital Center, Department of Research and Neurostimulation, Limoges, France Inserm U1094, Tropical Neuroepidemiology, Limoges, France Esquirol Hospital Center, University Pole of Elderly Psychiatry, Limoges, France University of Limoges, UMR_S 1094, Tropical Neuroepidemiology, Institute of Neuroepidemiology and Tropical Neurology, CNRS FR 3503 GEIST, Limoges, France
O. Gardère
Affiliation:
Esquirol Hospital Center, Department of Research and Neurostimulation, Limoges, France
M. Girard
Affiliation:
Esquirol Hospital Center, Department of Research and Neurostimulation, Limoges, France
J.P. Clément
Affiliation:
Inserm U1094, Tropical Neuroepidemiology, Limoges, France Esquirol Hospital Center, University Pole of Elderly Psychiatry, Limoges, France University of Limoges, UMR_S 1094, Tropical Neuroepidemiology, Institute of Neuroepidemiology and Tropical Neurology, CNRS FR 3503 GEIST, Limoges, France

Abstract

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Introduction

Repetitive transcranial magnetic stimulation (rTMS) is a neurostimulation technique used in many indications, especially in psychiatry in the treatment of mood disorders. Although its efficacy in this treatment has been demonstrated, the study of predictive response factors currently remains a major challenge.

Method

We conducted a retrospective study from the cohort of treatment-resistant depressed patients that received rTMS treatment in Esquirol Hospital in Limoges in order to identify response predictors at three months. Of the 416 patients treated between January 2007 and November 2015, 107 subjects have been included. The clinical characteristics of responders and nonresponders at three months after treatment, but also at the end of treatment and after one month were compared. Predictors of clinical improvement objectified by the Hamilton Depression Rating Scale (HDRS) were identified using a logistic regression model.

Results

In our cohort, the response rates were 52% at the end of treatment, 61% at 1 month and 57% at 3 months. Psychiatric family history and the recurrence of thymic episodes were found to be negative predictors of response to rTMS treatment. Similarly, high subscore of depression core symptoms in HDRS could also predict a poorer response.

Conclusion

Our data from a naturalistic cohort tended to prove that a number of clinical features should be taken into account in determining the profile of the treatment-resistant depressed patients that could respond to rTMS treatment.

Disclosure of interest

The authors have not supplied their declaration of competing interest.

Type
e-Poster Walk: Psychosurgery & stimulation methods (ECT, TMS, VNS, DBS) and psychophysiology
Copyright
Copyright © European Psychiatric Association 2017
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