Physiologic variability of vascular access blood flow for hemodialysis
Language English Country Switzerland Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
18810229
DOI
10.1159/000157324
PII: 000157324
Knihovny.cz E-resources
- MeSH
- Arteriovenous Fistula physiopathology therapy MeSH
- Renal Dialysis * MeSH
- Middle Aged MeSH
- Humans MeSH
- Follow-Up Studies MeSH
- Retrospective Studies MeSH
- Blood Flow Velocity * MeSH
- Aged MeSH
- Check Tag
- Middle Aged MeSH
- Humans MeSH
- Male MeSH
- Aged MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
AIM: To assess the variability of blood flow (QVA) through a native arteriovenous fistula (AVF) in the long-term and to determine the QVA reduction at which an intervention is appropriate. PATIENTS AND METHODS: The study was performed in a group of 34 chronic hemodialysis patients with no history of a AVF intervention. QVA was measured using the thermodilution method (Blood Thermodilution Monitor, Fresenius). Median follow-up was 41 months and the median number of QVA measurements in each patient was 15. The coefficient of variation (CV) of QVA was calculated for each patient. RESULTS: Mean QVA was 904 +/- 334 ml/min. The mean CV was 23.3 +/- 11.2%. CONCLUSION: QVA may fluctuate during a long-term follow-up period. The detection of QVA decrease by 20-25% could be still within physiological limits. Based on the results we recommend to first repeat the measurement at a shorter interval and to refer the patient to a radiologist only when the decreasing trend is confirmed.
References provided by Crossref.org
Classifications of haemodialysis vascular access stenosis: a scoping review
Arteriovenous Hemodialysis Access Stenosis Diagnosed by Duplex Doppler Ultrasonography: A Review
The role of Doppler ultrasonography in vascular access surveillance-controversies continue
