Duplex Scanning of Stenosis in Vascular Access for Hemodialysis
Abstract
Duplex scanning of vascular access was performed in 550 patients undergoing hemodialysis. Stenosis was detected in 48 (8,7 %) patients, 26 (54,2 %) of them had significant stenosis. Outflow vein stenosis was more common (35 people — 72,9 %) than inflow artery stenosis (7 people — 14,6 %) and stenosis of the anastomotic zone (5 people — 10,4 %), ipsilateral subclavian vein stenosis was detected in 1 (2,1 %) case. Stenosis presence did not depend on patient’s gender, age or the disease that caused chronic renal failure. Stenosis was more common in patients with radiocephalic fistula (р < 0,05). All patients with the inflow artery stenosis and stenosis of the proximal anastomotic zone had concomitant diseases of the peripheral arteries. A correlation was found between the significant stenosis presence and the thrombosis development (p = 0,02). Duplex scanning is the useful tool for diagnosing vascular access stenosis as it allows for timely surgical correction and increases the hemodialysis effectiveness.
About the Author
V. S. Koen
Mechnikov North-West State Medical University, Ministry of Healthcare Russia
Russian Federation
Russian Federation
Postgraduate Student of Radiology Department,
41, ul. Kirochnaya, Saint Petersburg, 191015
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Review
For citations:
Koen V.S. Duplex Scanning of Stenosis in Vascular Access for Hemodialysis. Radiology - Practice. 2021;(1):23-33. (In Russ.)
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