Vascular Access In Patients Research Articles

Surgical technique for creation of an arteriovenous fistula using a looped bovine graft.

We have used bovine grafts in a looped configuration in the forearn in 150 patients for chronic hemodialysis and have evolved a simple technique for their successful implantation. The critical technical points include: 1) use of large-diameter long grafts (7.0-8.0 mm diameter; 34-40 cm in length); maintenance of the heterograft in a distended and pulsating state throughout the procedure to prevent distortion and twisting; 3) creation of a wide smooth-looped tunnel with Bakes dilators; and 4) anastomosis to the largest avialable antecubital vein. Thirteen cases of late graft occlusion (3-36) months) have been found to be produced by a localized obstructive lesion just distal to the venous anastomosis. These grafts were easily restored to a functional status by thrombectomy and patch graft angioplasty of the stenotic segment. The looped graft technique is not applicable to all patients requiring hemodialysis but it is especially helpful when distal vessels have been obliterated by previous procedures or when home-dialysis is planned. This surgical technique should be among the alternatives considered by surgeons concerned with problems of vascular access in patients with chronic renal failure.

Application of Non-thermal Commscope Irradiation in Preventing Com- plications of Hemodialysis Fistula

Abstract: Objective: To ensure that the patient’s treatment and control of the patient’s blood in the course of long-term dialysis, in order to ensure the blood flow rate at the rate of hemodialysis in the blood vessel of hemodialysis patients, mortality rate. Methods: In many Western countries, it has been found from the experience of long-term accumulation, arteriovenous fistula (AVF) is the first choice for long-term dialysis blood patients, which has a lot of a little bit, not only from the infection rate and blood flow, which has a lot of advantages.But its existence is also a lot of complications, non-thermal Commscope irradiation is a very effective way. Results: The method was compared with the method, and it was found that P <0.05, which was statistically significant. Conclusion: AVF is the preferred method of vascular access in patients with persistent dialysis, which is very easy to be punctured and has a very long time for maintenance. It is very important to carry out the treatment, treatment and surveillance of AVF complications and the use of means.