[Value of computer tomography in percutaneous kidney biopsies and attempts at preventing postpuncture bleeding]

Kidney biopsy was performed on 20 patients under computertomographic control. In all cases sufficient kidney tissue could be removed. All patients were checked for subcapsular or perirenal bleeding immediately after punction and 24 and 48 hours later. In only 7 patients was no bleeding found. In the other patients bleeding varied between 2 and 64 ml immediately after punction and between 1 and 41 ml after 48 hours.