Observational studyThe journal of vascular access2024
Doppler ultrasound assessment of calcified radial arteries prior to radio-cephalic arterio-venous fistula placement: an observational study.
Observational study in The journal of vascular access, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 7 citations in OpenAlex.
- Detailed ultrasonographic assessment of calcified arteries before arterio-venous fistula construction and fistula outcomes - a prospective observational study.BMC nephrology · 2025Observational
- The Role of Guideline's Threshold Vascular Diameters in Long-Term Radio-Cephalic Arteriovenous Fistula Failure.Journal of clinical medicine · 2025Article
- Arterio-Venous Fistula Calcifications-Risk Factors and Clinical Relevance.Biomedicines · 2024Article
- The Role of Ultrasound Examination in the Assessment of Suitability of Calcified Arteries for Vascular Access Creation-Mini Review.Diagnostics (Basel, Switzerland) · 2023Review
- The feasibility and efficiency for constructing arteriovenous fistula with <2 mm vein-a systematic review and meta-analysis.Frontiers in cardiovascular medicine · 2023Review
- Documented arteriovenous fistula thrill category and Doppler hemodynamics in mature radiocephalic fistulas: A single-center retrospective study.Science progressObservational
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Authors and funding
1 author at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIn elderly and diabetic patients, arterial calcifications are prevalent and result in worse outcomes of arterio-venous fistulas (AVFs). Optimal ultrasound criteria for assessment of calcified arteries are unknown. We report our experience with ultrasound assessment of calcified arteries prior to placement of radio-cephalic (RC) AVFs. MATERIAL AND
methodsWe included 85 patients in whom a RC-AVF placement was planned. Patients were divided according to the presence of radial artery calcifications into a calcified group (moderate/severe calcifications,
resultsIn the calcified group mean patients' age was 72 ± 11 years, 72% were diabetics, mean resistance index (RI) during RH was 0.78 ± 0.09 (range 0.63-0.90). In 14 (78%) patients an AVF was successfully placed and in 12 it matured (67% maturation rate). A lower RI at rest was observed in the primary failure sub-group with high area under the ROC curve (0.89) and a cut-off value of 0.90 for RI. There was no difference in RI at RH between failed and matured AVFs. 1-year secondary patency was 66% and in eight patients with follow-up ultrasound available, blood flow was 350-1300 ml/min. For comparison, in the control group a radio-cephalic AVF was placed in all patients, primary failure rate was 6%, maturation rate 85% and 1-year secondary patency was 77%.
conclusionsOur very limited experience suggests that successful RC-AVF placement and maturation with good 1-year patency rates is possible in patients with moderately/severely calcified arteries and RI during RH of up to 0.90.
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