Specially Processed Donor Lungs

by Sheela Philomena on  September 12, 2011 at 1:57 PM Organ Donation News
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Surgeons from the University of Maryland Medical Center have transplanted the first lungs treated with an experimental repair process before transplantation. This experimental procedure is carried out to repair the donor lungs that otherwise would have been rejected for transplant.

The procedure is part of a five-center national clinical research trial to evaluate the efficacy of repairing, before transplant, lungs that might otherwise have been passed over as unsuitable for organ donation. The results of this study, if successful, could significantly expand the number of transplantable lungs available to patients awaiting transplants.

Currently, only 15-20 percent of donor lungs are transplantable; most do not meet transplant criteria. The research focuses on an external perfusion technique using a fluid called STEEN SolutionTM .

More than 1,700 people are on the lung transplant waiting list in the U.S., including nearly 30 in Maryland, according to the United Network for Organ Sharing.

We are excited about the prospect of what this ex vivo, out-of-the-body perfusion technique could mean for our many transplant candidates who often spend years waiting for lungs to become available, says the principal investigator, Bartley P. Griffith, M.D., professor of surgery at the University of Maryland School of Medicine and chief of cardiothoracic surgery at the University of Maryland Medical Center. This research is part of our ongoing goal to develop innovative procedures and rapidly improve our patients’ quality of life.

Lungs in this clinical trial are recovered using current donor lung retrieval techniques. Once brought to the study transplant center, the lungs are re-assessed by the transplant team. The lungs are then physiologically assessed during ex vivo perfusion with STEEN SolutionTM over a period of three to four hours. During this time, the transplant team evaluates abnormalities inside the lungs, oxygenation levels and overall health of the lungs. At the end of the process, the transplant team determines if the lungs meet the high standards necessary for transplantation.

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