Document Detail

Hemodialysis access stenosis: early detection with color Doppler US.
MedLine Citation:
PMID:  9530312     Owner:  NLM     Status:  MEDLINE    
PURPOSE: To evaluate color Doppler ultrasound (US) in detection of subclinical stenosis of hemodialysis access grafts and fistulas. MATERIALS AND METHODS: Doppler US was performed in 40 consecutive patients with no clinical or laboratory findings of hemodialysis access dysfunction. To assess the presence and percentage of stenosis, the maximum systolic blood velocity and velocity ratios were measured and the US images were assessed visually. Fistulography was recommended in patients who demonstrated stenosis greater than 50% at US. RESULTS: At US, 32 of the 40 patients had evidence of stenosis greater than 50%. In 23 of the 32 patients, a follow-up fistulogram was obtained. Hemodynamically significant stenosis was confirmed in 19 of the 23 patients at fistulography. Percutaneous transluminal angioplasty was then performed in 18 of the 19 patients and was successful. CONCLUSION: Color Doppler US is more sensitive than clinical or laboratory methods for detection of hemodialysis access stenosis. Screening with US appears to enable earlier detection and therapy.
R A Older; T A Gizienski; M J Wilkowski; J F Angle; D A Cote
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Radiology     Volume:  207     ISSN:  0033-8419     ISO Abbreviation:  Radiology     Publication Date:  1998 Apr 
Date Detail:
Created Date:  1998-04-16     Completed Date:  1998-04-16     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0401260     Medline TA:  Radiology     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  161-4     Citation Subset:  AIM; IM    
Department of Radiology, University of Virginia Health Sciences Center, Charlottesville 22908, USA.
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MeSH Terms
Arteriovenous Shunt, Surgical*
Graft Occlusion, Vascular / radiography,  ultrasonography*
Renal Dialysis*
Ultrasonography, Doppler, Color*

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