Deep Brain Stimulation of Subcallosal Cingulate for Refractory Anorexia
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Solution Overview
Problem
Current methods for treating refractory anorexia nervosa and other eating disorders are ineffective in the long term as they do not adequately address underlying behavioral and neurological factors contributing to these conditions.
Innovation Solution
Deep brain stimulation (DBS) targeting the subcallosal cingulate area, specifically using electrical stimulation systems with implantable devices and electrodes to modulate neuronal activity, potentially combined with drug delivery, to treat eating disorders by addressing the underlying neurological causes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electrical stimulation is applied to the vagus nerve or trigeminal/glossopharyngeal nerve, then some treatment effect is achieved, but the treatment is not effective in the long term because underlying behavioral and neurological factors are not addressed
Solution Approach 1:
The patent uses the subcallosal cingulate area as an intermediary brain region that connects to and modulates multiple downstream neural circuits involved in eating behavior, mood regulation, and impulse control. By stimulating this hub region, the treatment indirectly addresses multiple underlying factors simultaneously, achieving both long-term effectiveness and comprehensive behavioral modification.
Solution Approach 2:
The subcallosal cingulate area serves multiple functions in regulating eating behavior, mood, and impulse control. Stimulating this single region produces multi-functional effects that address various underlying factors of eating disorders simultaneously, making the treatment both versatile and sustainably effective.
2Reliability
If stimulation is applied to the paraventricular nucleus, lateral hypothalamus or ventral medial hypothalamus, then some treatment effect is achieved, but underlying neurological causes creating and sustaining eating disorders are not adequately addressed
Solution Approach 1:
Rather than directly stimulating multiple separate brain regions involved in eating behavior, the patent uses the subcallosal cingulate area as a mediator that connects to and influences multiple downstream circuits. This single stimulation site can modulate multiple underlying neurological causes simultaneously, reducing treatment complexity while maintaining long-term effectiveness.
3Reliability
If stimulation is applied to the nucleus of the solitary tract, then prevention of eating disorders is achieved, but underlying behavioral factors and neurological causes are not addressed
Solution Approach 1:
The subcallosal cingulate area serves as a higher-level intermediary that integrates and modulates multiple neural circuits involved in both behavioral and neurological aspects of eating disorders. This allows the treatment to be both preventive and therapeutic, addressing multiple underlying factors simultaneously for sustained long-term effectiveness.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
DBS shows promise in improving mood, anxiety, and eating disorder symptoms, with significant weight gain and metabolic changes in patients with refractory anorexia nervosa, indicating a potential long-term benefit in managing these conditions.
Implementation Method 1
Deep brain stimulation (DBS) targeting the subcallosal cingulate area, specifically using electrical stimulation systems with implantable devices and electrodes to modulate neuronal activity
Data Source
AI summary
In one embodiment, a method of treating an eating disorder in a patient, comprises: diagnosing the eating disorder in the patient; and electrically stimulating a subgenual cingulate cortex site or a ventral medial prefrontal cortex site in the patient using electrodes of an implanted stimulation lead.