Abstract
Summary Plasma leakage in polytetrafluoroethylene grafts arises through complex interactions between the prosthetic physical/chemical microstructure and patient environment. While many of the precipitating factors can be avoided by careful graft-handling and meticulous surgical technique, this unpredictable complication still contributes significant morbidity to shunt procedures. Protein sealing of the graft offers a possible solution to the problem.

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