Wong V, Ward R, Taylor J, Selvakumar S, How T V, Bakran A
Renal Transplant Unit, Royal Liverpool Hospital, U.K.
Eur J Vasc Endovasc Surg. 1996 Aug;12(2):207-13. doi: 10.1016/s1078-5884(96)80108-0.
The radiocephalic arteriovenous fistula remains the method of choice for haemodialysis access. In order to assess their suitability for fistula formation, the radial arteries and cephalic veins were examined preoperatively by ultrasound colour flow scanner in conjunction with a pulse-generated run-off system. Intraoperative blood flow was measured after construction of the fistulae. Post-operative follow-up was performed at various intervals to monitor the development of the fistulae. Radial artery and cephalic vein diameter less than 1.6 mm was associated with early fistula failure. The intraoperative fistula blood flow did not correlate with the outcome of the operation probably due to vessel spasm from manipulation. However, blood flow velocities measured non-invasively 1 day after the operation were significantly lower in fistulae that failed early compared with those that were adequate for haemodialysis. Most of the increase in fistula diameter and blood flow occur within the first 2 weeks of surgery.
桡动脉-头静脉动静脉内瘘仍然是血液透析通路的首选方式。为了评估它们形成内瘘的适用性，术前通过超声彩色血流扫描仪结合脉冲血流描记系统对桡动脉和头静脉进行检查。在内瘘构建完成后测量术中血流量。术后在不同时间间隔进行随访以监测内瘘的发展情况。桡动脉和头静脉直径小于1.6毫米与早期内瘘失败相关。术中内瘘血流量与手术结果无关，这可能是由于操作引起的血管痉挛所致。然而，术后1天无创测量的血流量速度在早期失败的内瘘中明显低于那些适合血液透析的内瘘。内瘘直径和血流量的增加大多发生在术后的前2周内。
