PRAZOSIN CAN PREVENT POSTTRAUMATIC HEADACHES.

-

 

PRAZOSIN CAN PREVENT POSTTRAUMATIC HEADACHES.




A study led by VA Puget Sound Health Care System researchers has shown that prazosin, a drug used to treat high blood pressure, can prevent posttraumatic headaches.

Senior study author Dr. Murray Raskind, director of the VA Northwest Mental Illness Research, Education and Clinical Center in Seattle, Washington, explained that few treatment options exist for this type of headache.

"Persistent posttraumatic headaches are the most common long-term consequence of mild traumatic brain injuries (concussions) in Veterans and active-duty service members, causing substantial distress and disability at home and work. Although these headaches usually resemble migraine headaches symptomatically, they often fail to respond to the prevention treatments useful for migraines," said Raskind.

The FDA approved prazosin to treat hypertension in 1976. It has been widely used "off-label" to treat conditions such as PTSD-associated nightmares and enlarged prostate. An earlier study by research group members suggested that prazosin could reduce the frequency and severity of headaches caused by traumatic brain injury (TBI).

To test this effect, the researchers conducted a pilot study with 48 Veterans and service members with headaches caused by mild TBI, also known as a concussion. Participants took gradually increasing doses of prazosin for five weeks before receiving the maximum amount for 12 weeks. The study showed the drug was well-tolerated, and researchers reported that morning drowsiness was the only adverse effect.

Before the trial began, study participants had an average of 18 headache days each month. By the end of the 12 weeks, those taking prazosin only had headaches for an average of six days a month. Participants receiving a placebo reported some reduced headaches but still had headaches about 12 days a month. Significantly more participants in the prazosin group had at least 50% fewer headaches during the 12 weeks of taking a total dose of medication.

Participants taking prazosin also saw significant decreases in how much headaches impacted their quality of life. By the end of the trial, those taking prazosin reported that headaches had "some impact" on their daily ability to function, while participants who were given a placebo continued to say "severe impact" of headaches.

According to the researchers, more extensive clinical trials are needed to confirm the extent of these promising results. Still, these initial findings offer a potential relief for a common ailment many Veterans face.

"This study is the only clinical trial of an oral medication to demonstrate efficacy for posttraumatic headache. Because prazosin is widely used across VA and the Department of Defense to treat PTSD trauma nightmares and sleep disruption, many VA and DOD prescribers are familiar with prescribing this generically available, inexpensive medication," said Raskind. "Prazosin now offers an evidence-based approach to alleviate the suffering of Veterans and service members who have struggled for years with frequent posttraumatic headaches."

TBI has been called the "signature injury" of the recent wars in Iraq and Afghanistan. Since 2000, more than 460,000 service members have sustained a TBI, most of which were mild TBIs. Headaches are common following a mild TBI, and they often become chronic and cause substantial disability and distress.

Comments

Post a Comment

Popular posts from this blog

PEOPLE WITH OBESITY BURN LESS CALORIES DURING THE DAY

-
Image
  PEOPLE WITH OBESITY BURN LESS CALORIES DURING THE DAY Building on prior studies with healthy-weight participants, the new research includes different body sizes.         New research indicates that weight influences how and when bodies burn energy. An Oregon Health & Science University study published in the journal  Obesity  found people who have a healthy weight use more energy during the day, when most people are active and eat, while those who are obese spend more energy during the night when most people sleep. The study also found that during the day, those with obesity have higher levels of the hormone insulin -- a sign that the body is working harder to use glucose, an energy-packed sugar. "It was surprising to learn how dramatically the timing of when our bodies burn energy differed in those with obesity," said the study's first author, Andrew McHill, Ph.D., an assistant professor at the OHSU School of Nursing and the Oregon Institute of Occupational Health
Read more

WHAT CAUSES ITCHING, AND WHAT STOPS IT?

-
Image
  WHAT CAUSES ITCHING, AND WHAT STOPS IT?         It can be a relief to scratch the occasional itch, but when itch gets out of control, it can become a severe health problem. How does the body know when to stop? Scientists at UC San Francisco are getting close to an answer. In a breakthrough that could transform how doctors treat conditions from eczema to allergies, they have discovered a feedback loop centered on a single immune protein called IL-31 that causes the urge to itch and dials back nearby inflammation. The findings, published on October 13th in  Science Immunology , lay the groundwork for a new generation of drugs that interact more intelligently with the body's innate self-regulating ability. Previous approaches suggested that IL-31 signals itch and promotes skin inflammation. However, the UCSF team discovered that nerve cells, or neurons, that respond to IL-31, triggering a scratch, also prevent immune cells from overreacting and causing more widespread irritation. &q
Read more

A VEGAN DIET IMPROVES CARDIOVASCULAR HEALTH, ACCORDING TO A NEW STUDY

-
Image
  A VEGAN DIET IMPROVES CARDIOVASCULAR HEALTH, ACCORDING TO A NEW STUDY         In a study with 22 pairs of identical twins, Stanford Medicine researchers and their colleagues have found that a vegan diet improves cardiovascular health in as little as eight weeks. Although it's well-known that eating less meat improves cardiovascular health, diet studies often need to be enhanced by genetic differences, upbringing, and lifestyle choices. By studying identical twins, however, the researchers were able to control for genetics and limit the other factors, as the twins grew up in the same households and reported similar lifestyles. "Not only did this study provide a groundbreaking way to assert that a vegan diet is healthier than the conventional omnivore diet, but the twins were also a riot to work with," said Christopher Gardner, Ph.D., the Rehnborg Farquhar Professor and a professor of medicine. "They dressed the same, they talked the same, and they had a banter betwe
Read more