Kidney patients' cells used to grow blood vessels in lab Part 3 The shunts have been tested in 10 high-risk kidney patients in Buenos Aires and Katowice, Poland, Todd McAllister of Cytograft (reported) in Lancet. Three of the patients suffered a failure during the first three months of the (trial) -- a not-unexpected result considering the patients' risk factors, McAllister said. Another (withdrew) from the study and a fifth died of unrelated causes. The rest of the grafts have functioned for (as long as) 20 months. The chief drawback of the new vessels is likely to be cost, Mironov said. They are expected to cost $15,000 to $20,000, (compared) with about $3,000 for the plastic tube.

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