Emergency embolization therapy for renal hemorrhage after percutaneous nephrolithotomy / 实用放射学杂志

ABSTRACT

Objective To identify various arteriographic manifestations and the curative effects of emergency embolization of renal hemorrhage after percutaneous nephrolithotomy.Methods Emergency arteriography was performed in 21 patients of renal hemor-rhage after percutaneous nephrolithotomy.Emergency embolotherapy was conducted by using different embolic agents such as gelat-in sponge,polyvinyl alcohol (PVA)particles and coils after bleeding arteries were identified.The arteriographic manifestations and the curative effects of the treatment for renal hemorrhage were retrospectively analyzed.Results Contrast extravasations were con-firmed in 21 patients,among them,4 contrast extravasations with arteriovenous fistulas(AVF)of renal artery;3 pseudoaneurysms of renal artery.The hemorrhage completely stopped after emergent embolotherapy in 21 cases.During follow-up,no rebleedings and severe complications occurred.Conclusion Emergency arterial embolization for renal hemorrhage after percutaneous nephrolithotomy is a safe and effective treatment.The key to successful treatment is to select embolization agent reasonably and embolize the bleeding arteries thoroughly and completely.