目的：探讨超声血栓消融、球囊扩张联合动静脉瘘治疗下肢深静脉血栓形成的临床疗效。
Objective: to discuss the effect of Acolysis thrombectomy with balloon dilation and arteriovenous fistula on the lower extremity deep vein thrombosis (DVT).
其中2例正常，2例颈静脉血栓，1例颈静脉癌栓，1例颈静脉扩张，2例动静脉瘘。
There were 2 normal jugular veins, 2 jugular vein thrombus, 1 jugular vein cancer embolism, 1 jugular vein dilation, 2 arteriovenous fistulas.
结果 18例先天性动静脉瘘查见纡曲扩张的血管网，无法辨认瘘口；
Results Deformed vascular net was observed, and the localization of arteriovenous fistulas was not observed directly in 18 congenital AVF patients.
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