Migraine Headache – New Electrical Stimulator Held Against Head Relieves
Symptoms – Magnetic Pulse May Prevent Headaches
June 23rd, 2006
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Researchers from
the Ohio State University Medical Center say that a new experimental
device that delivers a strong electrical current creating an intense
magnetic field for about one millisecond against the patients head,
could be an effective treatment for migraines. The device appears to be
effective in eliminating nausea and vomiting when administered during
the onset of the migraine.
The device, called
TMS, interrupts the aura phase of the migraine, often described as
electrical storms in the brain, before they lead to headaches.
According to the researchers, these Auras are neural disturbances that
signal the onset of migraine headaches.
Yousef Mohammad
says “Perhaps the most significant effect of using the TMS device was on
the two-hour symptom assessment, with 84 percent of the episodes in
patients using the TMS occurring without noise sensitivity. Work
functioning also improved, and there were no side effects reported."
Mohammad is the principal investigator of the study and a neurologist at
OSU Medical Center.
People who suffer
from migraines report “seeing" showers of shooting stars, zigzagging
lines, flashing lights, and in some cases loss of vision, weakness,
tingling and confusion. Many times these symptoms will lead to intense
throbbing head pain, nausea and vomiting.
The researchers
believe the stimulator interrupts the aura before it results in a
throbbing headache. "The device's pulses are painless. The patients
have felt a little pressure, but that's all," said Mohammad.
"In our study
sample, 69 percent of the TMS-related headaches reported to have either
no or mild pain at the two-hour post-treatment point compared to 48
percent of the placebo group. In addition, 42 percent of the TMS-treated
patients graded their headache response, without symptoms, as very good
or excellent compared to 26 percent for the placebo group. These are
very encouraging results."
Researchers used
to believe that migraines were caused by vascular constrictions which
caused the aura, and then lead to vascular dilation that caused the
throbbing headache. In the late 90’s research suggested that neuronal
electrical hyper excitability resulted in the throbbing headache. It
was this research prompted the development of the TMS device.
Dan Wilson
Best Syndication
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