More threads by Retired

Retired

Member
What is Migraine?
The pain of a migraine headache is often described as an intense pulsing or throbbing pain in one area of the head. It is often accompanied by extreme sensitivity to light and sound, nausea, and vomiting. Migraine is three times more common in women than in men. Some individuals can predict the onset of a migraine because it is preceded by an "aura," visual disturbances that appear as flashing lights, zig-zag lines or a temporary loss of vision. People with migraine tend to have recurring attacks triggered by a lack of food or sleep, exposure to light, or hormonal irregularities (only in women). Anxiety, stress, or relaxation after stress can also be triggers. For many years, scientists believed that migraines were linked to the dilation and constriction of blood vessels in the head. Investigators now believe that migraine is caused by inherited abnormalities in genes that control the activities of certain cell populations in the brain.

Is there any treatment?

There are two ways to approach the treatment of migraine headache with drugs: prevent the attacks, or relieve the symptoms during the attacks. Many people with migraine use both approaches by taking medications originally developed for epilepsy and depression to prevent future attacks, and treating attacks when they happen with drugs called triptans that relieve pain and restore function. Hormone therapy may help some women whose migraines seem to be linked to their menstrual cycle. Stress management strategies, such as exercise, relaxation, biofeedback, and other therapies designed to help limit discomfort, may also reduce the occurrence and severity of migraine attacks.

What is the prognosis?

Taking a combination of drugs to prevent and treat migraine attacks when they happen helps most people with migraine to limit the disabling effects of these headaches. Women whose migraine attacks occur in association with their menstrual cycle are likely to have fewer attacks and milder symptoms after menopause.

What research is being done?

Researchers believe that migraine is the result of fundamental neurological abnormalities caused by genetic mutations at work in the brain. Investigations of the more rare, familial subtypes of migraine are yielding information about specific genes and what they do, or don't do, to cause the pain of migraine headache. Understanding the cascade of biological events that happen in the brain to cause a migraine, and the mechanisms that underlie these events, will give researchers opportunities to develop and test drugs that could prevent or interrupt a migraine attack.

For more on migraines, visit the National Institute of Neurological Disorders and Stroke., source for this article.
 

megk

Member
This is an interesting treatment option...

Portable Device Effective In Zapping Away Migraine Pain

ScienceDaily (June 27, 2008) ? A novel electronic device designed to "zap" away migraine pain before it starts has proven to be the next form of relief for those suffering from the debilitating disease, according to a study conducted at The Ohio State University Medical Center.

Results of the study, to be presented Friday (6/27) at the annual American Headache Society meeting in Boston, found that the experimental device is safe and effective in eliminating headaches when administered during the onset of the migraine.

With one in eight Americans suffering from chronic migraines, Dr. Yousef Mohammad, a neurologist and principal investigator of the study at Ohio State's Medical Center, says the study's results are promising given that only 50 to 60 percent of migraine patients respond to traditional migraine drug treatments.

The noninvasive transcranial magnetic stimulator (TMS) device interrupts the aura phase of the migraine, often described as electrical storms in the brain, before they lead to headaches. Migraine sufferers often describe "seeing" showers of shooting stars, zigzagging lines and flashing lights, and experiencing loss of vision, weakness, tingling or confusion, followed by intense throbbing head pain, nausea and vomiting.

Previous studies, conducted at Ohio State, using a heavy and bulky TMS device, reduced headache pain. To expedite treatment at home, a portable hand-held device was developed and tested.

"Stimulation with magnetic pulses from the portable TMS device proved effective for the migraine patients," said Mohammad. "Because of the lack of adverse events in this trial and the established safety of the TMS device, this is a promising treatment for migraines with aura. This sets the stage for future studies in migraines without aura."

The TMS device sends a strong electric current through a metal coil, which creates an intense magnetic field for about one millisecond. This magnetic pulse, when held against a person's head, creates an electric current in the neurons of the brain, interrupting the aura before it results in a throbbing headache.

"The device's pulses are painless and safe," Mohammad said. "Since almost all migraine drugs have some side effects, and patients are prone to addiction from narcotics, or developing headaches from frequent use of over-the-counter medication, the TMS device holds great promise for migraine sufferers."

Of the 164 patients involved in the multi-center, randomized clinical trial receiving TMS treatment, 39 percent were pain free at the two-hour post-treatment point, compared to 22 percent in the group receiving "sham" pulses. There were no differences reported related to adverse reactions between the two groups.

It was previously believed that migraine headaches start with vascular constriction, which results in an aura, followed by vascular dilation that will lead to a throbbing headache. However, in the late 1990's it was suggested that neuronal electrical hyperexcitablility resulted in a throbbing headache. This new understanding of the migraine mechanism assisted in the development of the TMS device.

NeuraLieve, manufacturer of the device located in Sunnyvale, Ca., provided the funding and equipment for the study. Mohammad serves on the company's board of directors.

sciencedaily . com/releases/2008/06/080626075513 . htm
 
Replying is not possible. This forum is only available as an archive.
Top