Clinical Application of Preoperative Intra Arterial Embolism for Nasopharyngeal Fibroangioma

［Abstract］Objective　To discuss preoperative digital subtract angiography and the clinical value of intra arterial embolization in the nosepharyngerl fibroangioma before surgical treatment．Methods　Seldinger technology was used to conduct the bilateral internal and external carotid artery and vertebral artery angiography in the femoral artery．The blood supply artery of nosepharyngerl fibroangioma from external carotid artery was embolized by suerselective embolization，and the fibroangioma was removed 7 days after embolization．Results　The tumor blood from the same lateral internal axillary artery was found in 7 patients，from the bilateral internal axillary artery was in 2 patients，from the same lateral internal axillary and pharyngeal artery was in 1 patient，and from the same lateral axillary artery and the branches of the internal carotid artery was in 1 patient．All patients whose branches of external carotid artery were given superselective embolization and had no serious complications．The 11 patients were given the operation after embolization and the bleeding from the tumor was sgnificantly reduced in the operation and the mean bood loss was 300 mL．Conclusion　Digital subtract angiography and intrabascular emblolization is a safe and effective method in treatment of nosepharyngerl fibroangioma before surgical treatment.