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Deep Brain Stimulation for Clinical Study of Treatment-Resistant Depression, by Mayberg et al.

01/03/2005 (Aprox)


Functional, structural, and postmortem studies suggest that sgACC [subgenual anterior cingulate cortex] abnormalities are the most solid finding in connection with MDD. This was probably to be expected, given the role of sgACC as a crossroads in a network of structures involving the control of mood, memory, appetite, and sleep. These findings led Helen S. Mayberg, already introduced as a leading figure in depression neuroimaging, to try deep-brain stimulation (DBS) of sgACC as a treatment (the pioneer study was Mayberg et al. 2005; for recent reviews, see Anderson et al. 2012 and Schlaepfer et al. 2014).


The apparent discovery of a “depression switch” (Dobbs 2006) received glowing media coverage, with most journalists preferring to ignore Mayberg’s failure to disclose her financial ties to medical technology manufacturers (Bass 2010). The hype was dampened in 2013, when the U.S. Food and Drug Administration suspended a trial because it failed the “futility analysis,” which monitors whether an experimental treatment has reasonable chances of being shown to be significantly better than the control treatments (Horgan 2014).

Vidal, Fernando and Ortega, Francisco. Being Brains: Making the Cerebral Subject (Forms of Living)....

Helen Mayberg: Deep Brain Stimulation for Depression (skip to 62s)
Helen Mayberg: Deep Brain Stimulation
Deep Brain Stimulation for Depression CNN Presents Special with Dr. Sanjay Gupta

Abstract

Treatment-resistant depression is a severely disabling disorder with no proven treatment options once multiple medications, psychotherapy, and electroconvulsive therapy have failed. Based on our preliminary observation that the subgenual cingulate region (Brodmann area 25) is metabolically overactive in treatment-resistant depression, we studied whether the application of chronic deep brain stimulation to modulate BA25 could reduce this elevated activity and produce clinical benefit in six patients with refractory depression. Chronic stimulation of white matter tracts adjacent to the subgenual cingulate gyrus was associated with a striking and sustained remission of depression in four of six patients. Antidepressant effects were associated with a marked reduction in local cerebral blood flow as well as changes in downstream limbic and cortical sites, measured using positron emission tomography. These results suggest that disrupting focal pathological activity in limbic-cortical circuits using electrical stimulation of the subgenual cingulate white matter can effectively reverse symptoms in otherwise treatment-resistant depression.

Download the full PDF article below:

Mayberg, Helen, et al. 2005. “Deep Brain Stimulation for Clinical Study of Treatment-Resistant Depre...

And below you can find the two recent reviews of the study by Mayberg et al.:

Anderson, Rodney J., et al. 2012. “Deep Brain Stimulation for TreatmentResistant Depression: Efficac...

Schlaepfer, Thomas E., Bettina H. Bewernick, Sarah Kayser, et al. 2014. “Deep Brain Stimulation of t...
Image of the anterior cingulate cortex.

Image source

Learn more about the anterior cingulate cortex and its suspected role in mental health:
2-Minute Neuroscience: Limbic System
Cingulate Gyrus - Human Brain Series - Part 12
And here are some more videos about Deep Brain Stimulation and its alleged effects on MDD:
Deep Brain Stimulation - What is DBS?
Deep Brain Stimulation (DBS) for treatment-resistant depression
Deep Brain Stimulation: How It Works
Andres Lozano: Parkinson's, depression and the switch that might turn them off

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Published in 7/02/2019

Updated in 19/02/2021

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