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Study M235

Study name

Pfleiderer B 2003

Title

Effective electroconvulsive therapy reverses glutamate/glutamine deficit in the left anterior cingulum of unipolar depressed patients

Overall design

The aim of this study was to assess the effect of successful electroconvulsive therapy (ECT) on glutamate/glutamine (Glx) levels in the anterior cingulum. The left anterior cingulum of severely depressed unipolar patients (depression group, n = 17) was measured by 1H STEAM spectroscopy before and after ECT, and the results were compared with those for age- and gender-matched controls (control group, n = 17). Patients required a mean of 12.5 +- 5.2 ECT treatments. Response was defined as a Montgomery-Asberg rating scale (MADRS) reduction > 60% of baseline scores. Ten patients were non-responders (non-responder group), and 7 patients were responders (responder group). Metabolite quantification was reported in institutional units.

Study Type

Type1;

Type2;

Data available

Unavailable

Organism

Human;

Categories of depression

Depressive disorder; Depression; Depression;

Criteria for depression

DSM-IV diagnosed MDD

Sample size

34

Tissue

Central; Brain; Anterior cingulate;

Platform

MRS; MRS: 1.5 T STEAM spectroscopy (Magnetom SP, Siemens, Erlangen, FRG);

PMID

12694892

DOI

10.1016/S0925-4927(03)00003-9

Citation

Pfleiderer B, Michael N, Erfurth A, et al. Effective electroconvulsive therapy reverses glutamate/glutamine deficit in the left anterior cingulum of unipolar depressed patients. Psychiatry Res 2003;122(3):185-92.

Metabolite

Glutamate and Glutamine;