血管成形术在治疗血液透析动静脉内瘘狭窄中的作用

目的 观察血管成形术治疗血液透析动静脉内瘘狭窄中的作用.方法 选择21例血液透析动静脉内瘘狭窄患者进行血管成形术治疗,比较血管成形术治疗前后的血管造影表现、透析血流量及静脉压变化.结果 血管成形术后造影显示狭窄血管扩张.术后透析血流量由扩张前(135.41±20.89)mL/min增至(265.37±12.28 )mL/min,在血流量为250 mL/min时,静脉压由扩张前的(189.58±12.32) mmHg降至扩张后(100.62±13.76)mmHg;术中未出现血管破裂、出血及血栓形成等并发症.结论 血管成形术是治疗血液透析动静脉内瘘狭窄的有效方法,对血液透析动静脉内瘘的维持有重要价值.

Role of Percutaneous Transluminal Angioplasty in the Treatment of Hemodialysis Patients with Arteriovenous Fistula Stenosis

Objective To observate the role of percutaneous transluminal angioplasty(PTA)in the treatment of hemodialysis patients with arteriovenous fistula stenosis.Methods Percutaneous transluminal angioplasty was performed in 21 hemodialysis patients with arteriovnous fistula stenosis.The preoperative and postoperative angiographic demonstration,the volume of blood flow,and the level of venous pressure during hemodialysis were compared.Results The constricted segment was dilated to 80% after the PTA.During the hemodilysis,the volume of blood flow increased from preoperative(135.41±20.89)mL/min to postoperative(265.37±12.28)mL/min,and the level of venous pressure decreased from preoperative(189.58±12.32)mmHg to postoperative(100.62±13.67)mmHg when the blood flow was at a rate of 250 mL/min.No complications such as vascular perforation,hemorrhage and thrombosis were observed.Conclusion PTA is an effective treatment for arteriovnous fistula stenosis and has important clinical application value in maintenance hemodialysis.