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A Door Opens in the World of Kidney Transplants

Alan Goody had all but given up. For seven years he'd hoped for a kidney transplant, his name on three separate lists. And yet, because he himself is a nephrologist, he understood all too well why his chances of receiving a new kidney were next to nil. Two transplants he'd undergone years before almost certainly would make his body reject another organ the minute it was implanted.

Goody's first donated kidney served him for 13 years. But when it failed in 1995, his second organ, which came from his mother, lasted less than a week. During the transplant, his immune system became highly sensitized to proteins on his mother's kidney, and his antibodies immediately set out to destroy the donated organ. Within a week, the kidney had to be removed. Now, at age 30, with no working kidney, he was looking at a lifetime on dialysis.

But Goody was lucky. A protocol developed at Hopkins under the leadership of transplant surgeon Robert A. Montgomery has just made it possible for patients who are highly sensitized to donor tissue to have a kidney transplant. The technique, in fact, works so well it even allows patients to receive an organ from a donor whose blood type is incompatible with their own. The key is to cleanse the recipient's blood of all the antibodies (blood proteins) that cause rejection.

Plasmapheresis is what does the job. The procedure relies on a spinning device, known as a cell separator, to remove the antibody-containing plasma from the blood cells of the person to receive the kidney. The blood cells then are returned to the patient, while the plasma is replaced with other fluids.

Patients typically go through three or four plasmapheresis treatments starting about 10 days before the transplant and three more after the surgery. An intravenous drip of medication prevents them from developing new antibodies.

Because Goody's antibody levels were so high, he required no fewer than 13 plasmapheresis treatments before surgery. But they did the job. On July 27, he received a new kidney from his father. Today, the organ is working away in his body.

"This new technique opened a lot of doors for me," Goody says.


— Gary Logan
Hopkins Medical News, Fall 2002

    

 

 

 

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