Usefulness of Doppler Ultrasound Carried Out by the Vascular Surgeon After Loco-regional Anesthesia for Preferred Access

NCT04978155 | Completed

• 1 other identifier: ECHO FAV
• Study Type: observational
• Target: 193
• Locations: 1 country
• Sites: 1

Brief Summary

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.

Conditions

Arterio-venous Fistula

Keywords

Arterio-veinous fistula access; preoperative Doppler ultrasound; maturation access

Outcome Measures

Primary Outcomes (1)

• Functionality of the AVF at the time of the postoperative

  An AVF is defined as functional if all the criteria of the good development of the haemodialysis access (based on the National Kidney Foundation's criteria) are present : Blood flow\>600ml, diameter over 6mm and lower depth of 6mm

  6 weeks

Secondary Outcomes (2)

• The rate of planning change between the surgical project at the time of the consultation and the AVF that is finally placed

  During the surgery

• Primary, assisted primary and secondary permeability of our accesses

  12 months

Study Arms (2)

Echo group

All the patients (n=90) who had an AVF creation with preoperative venous identification by the surgeon at CHU de TOULOUSE (echo group).

Diagnostic Test: Duplex ultrasound performed by the surgeon after locoregional anesthesia

Control

All the patients (n=93) who had a native AVF placed during the year 2019 without having received immediate preoperative ultrasound and therefore there was no alteration in the surgical project in relation to that planned at the time of the consultation

Interventions

Duplex ultrasound performed by the surgeon after locoregional anesthesia DIAGNOSTIC_TEST

Just after locoregional anesthesia, the surgeon perform a duplex ultrasound to determinate if the target vessel chosen to create the arterio-venous fistulae match with the pre-operative duplex performed during the consultation. So the plan can be changed such as more distal, more proximal creation, changing vein or artery target.

Echo group

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

All the patients who had an AVF creation with preoperative venous identification by the surgeon at CHU de TOULOUSE during the year 2020.

You may qualify if:

• Native AVF access
• During the year 2020
• Preoperative mapping during the consultation
• Loco-regional anesthesia

You may not qualify if:

• Redo surgery

Sponsors & Collaborators

• University Paul Sabatier of Toulouse: lead

Study Sites (1)

aurelien Hostalrich

Toulouse, 31059, France

Location

Related Publications (1)

• Hostalrich A, Boisroux T, Segal J, Lebas B, Ricco JB, Chaufour X. Assessment of Duplex Ultrasound Carried Out by the Vascular Surgeon After Locoregional Anesthesia for Preferred Arteriovenous Fistula Access. Ann Vasc Surg. 2022 Jul;83:117-123. doi: 10.1016/j.avsg.2021.11.014. Epub 2021 Dec 20.

  PMID: 34942337 DERIVED

MeSH Terms

Conditions

Arteriovenous Fistula

Condition Hierarchy (Ancestors)

Arteriovenous Malformations; Vascular Malformations; Cardiovascular Abnormalities; Cardiovascular Diseases; Vascular Fistula; Vascular Diseases; Congenital Abnormalities; Congenital, Hereditary, and Neonatal Diseases and Abnormalities; Fistula; Pathological Conditions, Anatomical; Pathological Conditions, Signs and Symptoms

Study Design

• Study Type: observational
• Observational Model: CASE CONTROL
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Vascular Surgeon,MD, Principal investigator

Study Record Dates

• First Submitted: July 9, 2021
• First Posted: July 27, 2021
• Study Start: January 1, 2020
• Primary Completion: February 1, 2021
• Study Completion: July 1, 2021
• Last Updated: July 27, 2021

Record last verified: 2021-07

Locations

FR (1)