More may be less: increasing extracorporeal blood flow in an axillary arterio-arterial access decreases effective clearance

被引：2

作者：

Krisper, Peter ^{[2
]}

Martinelli, Elisabeth ^{[1
]}

Zierler, Edda ^{[1
]}

Schilcher, Gernot ^{[2
]}

Tiesenhausen, Kurt ^{[3
]}

Schneditz, Daniel ^{[1
]}

机构：

[1] Med Univ Graz, Inst Physiol, Ctr Physiol Med, Graz, Austria

[2] Med Univ Graz, Dept Internal Med, Div Nephrol, Graz, Austria

[3] Med Univ Graz, Dept Surg, Div Vasc Surg, Graz, Austria

来源：

NEPHROLOGY DIALYSIS TRANSPLANTATION | 2011年 / 26卷 / 07期

关键词：

arterio-arterial access; clearance; haemodialysis; recirculation; VASCULAR ACCESS; DIALYSIS;

D O I：

10.1093/ndt/gfr225

中图分类号：

R3 [基础医学]; R4 [临床医学];

学科分类号：

1001 ; 1002 ; 100602 ;

摘要：

Axillary arterio-arterial graft interposition has been described as a reasonable haemodialysis access in selected patients. In a patient with this unusual access, we measured and calculated effective clearance at different extracorporeal blood flows (Q(b)). Effective clearance increased with increasing blood flow and reached a maximum at a Q(b) of similar to 200 mL/min but then decreased when Q(b) was increased further. As this type of access typically provides low access flow, one has to be aware that local recirculation will easily occur. Therefore, a Q(b) above access flow has to be avoided since any increase beyond that threshold reduces effective clearance.

引用

页码：2401 / 2403

页数：3