Researchers at the University of Pennsylvania School of Medicine have found that transcranial magnetic stimulation (TMS) is a safe and effective method of treating patients with major depression for whom other treatments have been unsuccessful.
TMS is a non-invasive technique that excited neurons in the brain via magnetic pulses that pass through the scalp. The non-drug treatment has minimal side effects and avoids normal side effects of standard antidepressant therapy such as weight gain, fatigue and sexual dysfunction.
"TMS provides a well-tolerated treatment option to patients whose depression is otherwise treatment resistant," says John P. O'Reardon, MD, Associate Professor of Psychiatry at Penn, and lead study author. "Since TMS is administered via the scalp and therefore goes directly to the brain, it allows the patient to avoid bodily side effects such as weight gain, sedation and/or sexual function."
The study was conducted at 23 sites in the U.S., Australia, and Canada, and involved 301 medication-free patients with major depression who had not benefited from prior treatment. The patients were randomized to active or sham TMS for 4-6 weeks. Response and remission rates with active TMS were approximately twice those of sham. Additionally, there were no unexpected, serious side effects, and less than 5% of patients discontinued their TMS due to side effects. This is about three times better tolerated and safer than standard medications, which have about a 15% discontinuation rate due to side effects.
Dr. O'Reardon further comments, "As indicated by recent large scale,
government-sponsored, studies of existing treatment options for major depression conducted by the National Institute of Health (the STAR-D reports), there is a great need to develop new, effective treatments for patients, especially those not benefiting from first line interventions. The results of this study indicate that TMS offers new hope to patients in this regard."
[Source: PRNewsWire]
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