The efficacy of superselective renal artery embolization for iatrogenic renal hemorrhage

Abstract

Objective To evaluate the efficacy of superselective renal artery embolization in the treatment of iatrogenic renal hemorrhage. Methods The clinical data of 31 iatrogenic renal hemorrhage patients who had underwent superselective renal artery embolization were retrospectively analyzed. Results All patients were found to have bleeding site by contrast examination, including pseudoaneurysm in 21 cases, renal arteriovenous fistula in 3 cases, extravasation of contrast media in 4 cases, and pseudoaneurysm and renal arteriovenous fistula in 3 cases. Microcoil embolization was used in 20 patients, and microcoil embolization combined with gelatin sponge was used in 12 patients. Thirty patients got successful embolization once, and success rate was 96.8% (30/31). One patient got successful embolization in the second time. There were no serious complications and no recurrence of renal hemorrhage. Conclusions Superselective renal artery embolization in the treatment of iatrogenic renal hemorrhage has the advantages of exact hemostasis, less trauma and fewer complication, and can retain the normal renal tissue maximumly. Key words: Hemorrhage; Iatrogenic disease; Kidney; Embolization, therapeutic; Retrospective studies