To evaluate the clinical effect of transcatheter arterial embolization in treating acute bladder hemorrhage of malignant tumor patients.

Clinical data of transarterial embolization in 42 malignant tumor patients with bladder hemorrhage were analyzed retrospectively. Post-embolization angiography findings including bleeding control and complications were assessed.

The technical success rate was 100% (50/50). Hematuria was controlled after the first procedure (1 day to 6 days after embolization) in 35 of 42 patients, the recent successful rate was 83.33% (35/42). The late clinical success rate was 76.10% (32/42) since late bleeding recurrence was reported in 10 patients during the follow-up. No major complications related to embolization occurred, such as buttock or perineal pain, bladder necrosis, renal function damage etc.

Selective transcatheter arterial embolization is an effective and safe method to control acute bladder bleeding in malignant tumor patients. It can be used as priority selection.