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Mechanical tissue resuscitation technology shows promise
Date:4/16/2012

WINSTON-SALEM, N.C., April 16, 2012 Wake Forest Baptist Medical Center researchers seeking a successful treatment for traumatic brain injury have found that the size and extent of damaged tissue can be reduced by using a new device to prevent cell death.

The research, the focus of a three-year, $1.5 million study funded by the Department of Defense, was recently published in the journal Neurosurgery. The technology, tested in rats, is called mechanical tissue resuscitation (MTR) and uses negative pressure to create an environment that fosters cell survival.

Louis C. Argenta, M.D., and Michael Morykwas, Ph.D., professors in the Department of Plastic Surgery and Reconstructive Surgery, and a multidisciplinary team of colleagues at Wake Forest Baptist, have more than 15 years of experience working with negative pressure devices to successfully treat wounds and burns. In this study, the team used MTR to remove fluid and other toxins that cause cell death from an injury site deep in the brain.

When the brain is injured by blunt force, explosion or other trauma, the cells at the impact site are irreversibly damaged and die. In the area surrounding the wound, injured cells release toxic substances that cause the brain to swell and restrict blood flow and oxygen levels. This process results in more extensive cell death which affects brain function. Argenta and his team targeted these injured brain cells to determine if removing the fluid and toxic substances that lead to cell death could help improve survival of the damaged cells.

In the study, a bioengineered material matrix was placed directly on the injured area in the brain and attached to a flexible tube connected to a microcomputer vacuum pump. The pump delivered a carefully controlled vacuum to the injured brain for 72 hours drawing fluid from the injury site.

The brain injuries treated with the device showed a significant decrease in brain swelling and rele
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Contact: Paula Faria
pfaria@wakehealth.edu
336-716-1279
Wake Forest Baptist Medical Center
Source:Eurekalert

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