Renal Pseudoaneurysm after Percutaneous Nephrolithotomy / 대한비뇨기과학회지

ABSTRACT

Renal hemorrhage is a most distressing complication of percutaneous renal surgery. Two cases of renal pseudoaneurysm that occurred as a complication of percutaneous nephrolithotomy (PNL) for staghorn calculi are presented. Two male patients were admitted to our hospital for treatment of staghorn calculi. Laboratory data on admission revealed no significant abnormality. They underwent PNL, and most of the calculi were removed. Two nephrostomys were placed in the middle and lower calyces, and were removed at two and three days postoperatively, respectively. Significant bleeding, uncontrolled by the usual measures, developed for six and eight days following the removal of the nephrostomy tubes. Renal angiography was performed and demonstrated pseudoaneurysms. At the same time the pseudoaneurysms were treated by superselective embolization with a coil. We keep in mind the late hemorrhage after PNL, even when there was no hemorrhage from nephrostomy removal.