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NCT04978155
Usefulness of Doppler Ultrasound Carried Out by the Vascular Surgeon After Loco-regional Anesthesia for Preferred Access
trial testing Duplex ultrasound performed by the surgeon after locoregional anesthesia in Arterio-venous Fistula in 193 participants. Completed in 1 July 2021.
1 February 2021
Quick facts
| Lead sponsor | University Paul Sabatier of Toulouse |
|---|---|
| Status | Completed |
| Study type | OBSERVATIONAL |
| Enrollment | 193 |
| Start date | 1 January 2020 |
| Primary completion | 1 February 2021 |
| Estimated completion | 1 July 2021 |
| Sites | 1 location across France |
Drugs / interventions tested
- Duplex ultrasound performed by the surgeon after locoregional anesthesia
Conditions studied
- Arterio-venous Fistula — all drugs for Arterio-venous Fistula →
Sponsor
University Paul Sabatier of Toulouse
Who can join
18 and older, any sex, with Arterio-venous Fistula. Patients with the condition only — healthy volunteers not accepted.
Sponsor's own description
Preoperative vascular mapping with echo-Doppler is acknowledged as indispensable to create an arteriovenous fistula for haemodialysis (AVF). The conditions for performing this examination are not always ideal (venous vasospasm in cool temperatures, variability of the volume status in the dialysis patient). On the other hand, the use of a loco-regional anaesthesia (LRA) results in the vasodilation of the limb thus rendering it possible to use the veins which were initially considered too small. The aim of this study is to assess the functionality of our AVF when ultrasound identification was used by the surgeon after the LRA. These results have been compared with those of the preceding year during which this identification was not implemented.
Publications & conference data
1 peer-reviewed publication reference this trial (live from Europe PMC):
-
Assessment of Duplex Ultrasound Carried Out by the Vascular Surgeon After Locoregional Anesthesia for Preferred Arteriovenous Fistula Access.
Hostalrich A, Boisroux T, Segal J, Lebas B, et al · · 2022 · cited 3× · PMID 34942337 · DOI 10.1016/j.avsg.2021.11.014
Verify or expand the search:
- PubMed search for NCT04978155
- Europe PMC full search
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Verify against primary sources
- ClinicalTrials.gov — authoritative US registry record
- WHO ICTRP — international registry index
- EU Clinical Trials Register
- Sponsor press releases (Google)
- Trial protocol + status: ClinicalTrials.gov NCT04978155 (US National Library of Medicine, public domain)
- Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
- Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
- Sponsor: as reported to ClinicalTrials.gov by University Paul Sabatier of Toulouse
- Last refreshed: 27 July 2021
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT04978155.
Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing