se evidencias nuevos estudios donde se soporta cada vez mas el apoyo de magnetoterapia en situaciones depresivas.

Magnetic Stimulation Could Be the New Antidepressant

Depressed patients who don’t respond to or tolerate antidepressant medications may benefit from a noninvasive treatment that stimulates the brain with a pulsing electromagnet, a study in the May issue of the Archives of General Psychiatry suggests. The industry-independent, multisite, randomized, controlled trial of repetitive transcranial magnetic stimulation (rTMS) found that it produced significant antidepressant effects in a subgroup of patients.
The treatment works by stimulating underactive mood-regulating circuitry to target the top left front part of the brain with an electromagnetic coil that emits 3000 pulses over a session lasting less than 1 hour. It can be safely administered in an outpatient setting with few side effects, unlike more invasive brain stimulation treatments like electroconvulsive therapy.
The study, funded by National Institute of Mental Health (part of the National Institutes of Health), involved 190 patients who had previously failed to respond to antidepressant medications. The 92 patients in the active group received at least 3 weeks of randomized, controlled magnetic stimulations with an rTMS magnet aimed at the brain's left prefrontal cortex. Those who showed improvement received up to an additional 3 weeks of such blinded treatment. The 98 patients in the simulation group received sham treatment that blocked the magnetic field but otherwise imitated the active treatment.
Thirteen patients (14%) who received the active treatment achieved remission compared to 5 (about 5%) of patients who received the sham treatment. Patients who received active rTMS were significantly more likely to reach remission, particularly if they had been moderately resistant to treatment. The remission rate climbed to nearly 30% in an open-label phase of this study during which there was no simulation control.
Since the rTMS treatment did not trigger any seizures or other notable side effects, the researchers propose that higher levels of magnetic stimulation may be used in future studies, as evidence suggests antidepressant effects of such stimulation are dose-dependent. They cautioned that although rTMS treatment may be effective in at least some treatment-resistant patients, it is not yet a replacement for more invasive therapies.

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