Efficacy and Safety of Aprotinin on Transfusion Requirements in Patients Undergoing Radical or Total Cystectomy

Subjects will be randomized to receive an infusion of aprotinin (a test dose followed by a loading dose of 2 million KIU before skin incision followed by 500,000 KIU/hour until the end of surgery) or matching placebo. The maximal dose of aprotinin, that can be administered is 7,000,000 KIU, regardless of the duration of the operation. When a total of 7 million has been reached the administration of aprotinin must be discontinued.

Placebo is used according to the description of Arm 1