• 作者：A. Martí ; nez Izquierdo ; ^{amizqui@hotmail.com} ; G. Moñ ; ux Ducaju ; I. Martí ; nez Ló ; pez ; L. S&#225 ; nchez Hervas ; F.J. Serrano Hernando
• 关键词：Autó ; loga ; F&iacute ; stula ; Flujometr&iacute ; a ; Hemodiá ; lisis ; Intraoperatoria ; Permeabilidad
• 刊名：Angiolog铆a
• 出版年：2010
• 期刊代码：pca50_00033170
• 类别：med
• 出版时间：May-June 2010
• 卷：62
• 期：3
• 页码：97-102
• 文件大小：170 K

Background

Autogenous arteriovenous fistula (AVF) are the best vascular access for haemodialysis due to its durability and low complication rates.

Objective

The purpose of this study is to determine the usefulness of intra-operative blood flow measurement as a prognostic value with respect to pre-haemodialysis patency of the AVF.

Patients and methods

Intra-operative blood flow (IOF) was measured by ultrasonic transit time flowmetry (Medi-Stim mod. Butterfly Flowmeter, Norway) in 204 AVFs, 106 radiocephalic (RCAVFs) (52%) and 98 brachiocephalic (BCAVFs) (48%). Demographic variables such as sex, age, presence of diabetes or arterial hypertension were analysed. The functionality of the AVF during the first month was evaluated, considering as patent those having an audible bruit and/or palpable thrill.

Results

Early patency AVFs 94.1%(192), RCAVFs 90.6%(96) and BCAVFs 98%(96). ROC analysis of the diastolic IOF of RCAVF: area under the curve 73.1%(95%confidence interval: 0.58鈥?.89). For a value of 60 ml/min: sensitivity 81%, specificity 60%.

Conclusions

Diastolic intra-operative blood flow measurement shows a good correlation with the initial outcome of AVF.