PREDECTORS OF FAILURE OF ARTERIO-VENOUS FISTULAE FOR MAINTENANCE HEAMODIALYSIS

Abstract

Long term hemodialysis remains the most important support for patients with chronic renal failure, and reliable vascular access is an essential component of this management plan. Unfortunately vascular access carries a high morbidity and complications.

In this study, the most commonly used types of A-V fistulae were evaluated with stress on factors affecting success and complications of these conduits.

The sixty patients (55% males and 45% females, with mean age of 47.50 ±11.10 years) were classified into two equal group that were assigned as group I and group II. The two groups were studied as regards . the patients demographics (age - sex), history of Primary illness leading to CRF (if known), Duration of CRF, history of previous angioaccess. procedure, history of ipsilateral subclavian catheter insertion, history of .

diabetes mellitus, hypotension, hypertension, smoking, state of the heart,

' ' and history of fever. L_l

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Physical examination was done for each patient, included general . examination (Presence or absence of fever, Blood pressure, Peripheral pulses), and local examination (Scars of previous angioacess procedures, I size of the vein, distension of the vein on proximal compression, sites of recent punctures, and any sites of fibrosis and/or thr<?mbosis).

Intra-operative data were evaluated including quality of vein, quality of artery and fistulous opening. Postoperative study and follow up ' included palpable thrill and or audible bruit, and postoperative

complications that included early or late thrombosis, infection, venous

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