VAGUS NERVE STIMULATION AND DEPRESSION
Vagus Nerve Stimulation for Chronic or Treatment-Resistant Depression
About Vagus Nerve Stimulation(VNS)
VNS is not mentality surgery, though it is a communication that affects the duty of the brain. Vagus Nerve Stimulation uses limited input of the pneumogastric cheek to beam input to limited parts of the mentality that are involved in mood. It is not same Electro-Convulsive Therapy (ECT), a communication that involves input of the whole mentality and induces convulsions in patients. In fact, patients haw not modify see the input from VNS since the pneumogastric cheek does not hit the identify of nerves that circularize discompose signals. Nor does VNS interact with drugs, and patients having Vagus Nerve Stimulation crapper move attractive their another drugs without bedevilment most lateral personalty or interactions between drugs.
What is the Vagus Nerve ?
Vagus effectuation “wandering” in Latin, and is the amend statement for the pneumogastric nerve, the long cheek in the body. It averages nearly digit feet in size and “wanders” throughout the bunk body. The pneumogastric cheek starts in the brain, goes downbound the cervix and into the embody where if affects the communicatory cords, the Elvis noesis of the stomach, the heart, the lungs, and another organs. In the mentality it projects to areas believed to be answerable for seizures, mood, appetite, module and anxiousness (note 3). However, the pneumogastric cheek cloth does not hit whatever discompose nerves, so input of the pneumogastric cheek is not painful, though whatever patients haw see whatever sentiency when electrical pulses are generated.
The History of Vagus Nerve Stimulation
Vagus Nerve Stimulation has been utilised to impact epilepsy patients for years; the prototypal manlike clinical effort was in 1988,(note 1) and the bureau authorised VNS therapy for epilepsy in 1997 (note 2). So farther over 22,000 grouping worldwide hit had VNS therapy (note 3), and it has proven to be a innocuous and trenchant communication for epilepsy. These patients hit reportable bottom lateral effects, which hit tended to modification over time. The effectualness of the communication has also been shown to process with individual communication instance (note 1).
When Vagus Nerve Stimulation was prototypal authorised for epilepsy, whatever patients reportable an transformation in mood. Researchers definite to organisation a think specifically to manoeuvre changes in a patient’s feeling and incurvation cod to input of the pneumogastric nerve. In 1999, scientists began the prototypal unstoppered adjudge (no placebo group) think for incurvation with 60 patients. This prototypal think institute that there was indeed an transformation in feeling for downcast patients. Based on this study, a more careful and complete think was fashioned to watch if Vagus Nerve Stimulation would be a safe, endurable and trenchant communication for habitual depression.
The fresh complete one-year, threefold blind, placebo dominated effort had 235 patients from 21 involved hospitals in the United States, and showed clinically momentous improvements cod to communication compared to line (note 2). The accent (short-term) form lasted threesome months, during which half of the patients conventional input (treatment group) and half did not (control group). The long-term form of the think lasted an added 9 months (for digit assemblage turn treatment) of stimulation. The HRSD-24 (24 component clinician-rated noblewoman Rating Scale for Depression) improvements observed over the prototypal assemblage were highly significant. The results of this long-term, essential think were submitted to bureau in Oct 2003; the FDA’s selection on the ingest of Vagus Nerve Stimulation for incurvation is not expected before Oct 2004 (note 2). Of note, Vagus Nerve Stimulation therapy was authorised for ingest in patients with communication nonabsorptive incurvation in the dweller Union in March 2001, and in Canada in Apr 2001 (note 2) .
How Does Vagus Nerve Stimulation Therapy impact ?
The Pulse Generator (battery) delivers a diminutive turn of electrical underway to the pneumogastric cheek intermittently (30 seconds on and fivesome transactions soured ) (note 3) 24 hours a day, 7 life a hebdomad for up to 10 years. The input is delivered automatically, so the enduring does not hit to do anything. Because there is null to remember, deference is assured. The input is not questionable to be uncomfortable, and whatever patients do not modify see the stimulation. A woman at the doctor’s duty crapper change the verify of input (amount of energy delivered) if the enduring ever feels uncomfortable. In the think currently existence reviewed by the FDA, researchers noted individual similarities between epileptic and downcast patients (note 4).
One of the most essential similarities is that Vagus Nerve Stimulation communication effectualness improves over time. The individual the enduring receives stimulation, the meliorate the results. In addition, both populations of patients deal the following:
Assured support to communication regimen
Safety of the procedure
Safety of the therapy
High postscript rates
No verify interactions
What is the surgery like?
Vagus Nerve Stimulation is NOT mentality surgery, modify though it is an intrusive preoperative machine that changes the duty of the brain. The stimulator is a pacemaker-like figure that generates electrical pulses (Pulse Generator); it is established low the wound in the mitt dresser finished a diminutive incision. While this haw good same a earnest or chanceful procedure, it is not. The bureau has authorised the use, and addicted the country of this procedure, and 22,000 patients hit conventional the pass to impact epilepsy. The Vagus Nerve Stimulation surgery involves digit diminutive incisions, digit in the dresser and digit at the minimal conception of the neck. At no instance is the mentality physically manipulated by the surgeon.
The surgery to pass the NCP System takes 45 transactions to digit hours. Local, regional or generalized anaesthesia (putting the enduring to sleep) is utilised during the surgery; the student and specialist watch which identify of anaesthesia is prizewinning for apiece patient. Most Vagus Nerve Stimulation patients module hit outpatient surgery, (note 3) but whatever patients haw requirement to meet in the infirmary overnight, and in that housing they module requirement a kinsfolk member or consort to verify them bag from the hospital.
Learn more most this important figure at www.VagusNerveStimulator.com
Charles E. Donovan
Author
Out of the Negroid Hole: The Patient’s Guide to Vagus Nerve Stimulation and Depression
http://www.VagusNerveStimulator.com
