Methods In 80 hemodialysis patients, there are 9 snuff-box arteriovenous fistulas and 71 brachiocephalic fistulas.

• 方法 选取我院透析患者80例，鼻烟窝内瘘9例，左、右前臂内瘘71例，其中在同侧行二次手术为16例；