Characteristics of emergency renal arteriography and embolization strategies for renal hemorrhage / 中国介入影像与治疗学

ABSTRACT

Objective: To investigate the emergency renal arteriographic characteristics and embolization strategies of renal hemorrhage. Methods: Data of 63 renal hemorrhage patients who underwent emergency renal arteriography were retrospectively analyzed, including 43 cases of iatrogenic operation bleeding (iatrogenic group) and 20 cases of non-iatrogenic operation bleeding (non-iatrogenic group). The angiographic manifestations, embolic materials and hemostatic effects were compared between 2 groups. Results: Positive findings were noticed in 45 cases, while 18 cases were angiographically negative, the positive angiography rate in iatrogenic group (79.07% [34/43]) was higher than in non-iatrogenic group (55.00% [11/20], P=0.049). There were statistical differences of angiographic positive findings between 2 groups (P=0.001). In iatrogenic group, pseudoaneurysm was the most common positive finding. No significant difference of embolic material used was found between 2 groups (P=0.090). Among 45 cases with positive findings, bleeding stopped in 41 cases after single embolization, (91.11%, 41/45), while in 2 cases stopped after the secondary embolization, and the embolization success rate was 95.56% (43/45). Conclusion: Renal hemorrhage caused by iatrogenic operations are the main source of emergency renal arteriography with high positive rate mainly presenting as pseudoaneurysm. Selective renal artery embolization is the main and effective method for treatment of renal hemorrhage.