Pakistan Journal of Medical Sciences

Published by : PROFESSIONAL MEDICAL PUBLICATIONS

ISSN 1681-715X

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ORIGINAL ARTICLE

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Volume 22

July - September 2006

Number 3


 

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Use of Distal Venous Limb as a Conduit for
Intra Operative Confirmation of Arteriovenous Fistula Flow

Abdol Hassan Talaiezadeh

Abstract

Background: Thrombosis due to low blood flow in Arterio Venous Fistulas (AVF) created in extremities of Chronic Renal Failure (CRF) patients is a common cause of primary failure of AVF. Thrombosis commonly occurs primarily in inflow arterial limb or outflow venous limb during anastomosis caused by proximal and distal vessels control. Spasm of the supplying artery can accelerate this phenomenon.

Objective: In this clinical trial, we used distal venous limb as a conduit for revision and reconfirmation of blood flow in AVF at the end of operation.

Setting: University Hospitals of Imam Khomeini and Sina during 1994 to 2002.

Methods: Three hundred seventy eight CRF patients were operated on the upper extremities by this technique. We revived AVF blood flow by washing with a catheter and proximal arterial limb dilatation through distal venous conduit.

Results: Two hundred sixty (68.8%) out of 378 patients had inadequate blood flow in AVF at the end of operation. Using distal venous conduit we could successfully reestablish acceptable blood flow with good thrill in 242(93%) of them.

Conclusion: Use of distal venous limb as an intraoperative conduit for revision and reconfirmation of blood flow of AVF can prevent primary thrombosis and failure of AVFs.

Key words: AVF, Vascular access, Hemodialysis.

Pak J Med Sci July - September 2006 Vol. 22 No. 3 308-309


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