- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04991636
Analysis of Respiration-induced Deformations in Visceral and Renal Arteries Before and After Stenting During Branched Stent Treatment. (BEVAR)
July 28, 2021 updated by: Centre Chirurgical Marie Lannelongue
Aneurysm of the abdominal aorta is defined by a loss of parallelism of the arterial wall.
The main risk of this pathology is the rupture of the aneurysm which is life threatening and this risk increases with the size of the aneurysm.
Connected stents allow the management of complex thoracoabdominal aneurysms in patients at high surgical risk and/or contraindicated for open surgery.
These endovascular techniques have demonstrated their safety and efficacy, however, long-term CT follow-up remains essential to detect complications such as endo-leaks and restenosis/thrombosis of visceral and renal stents.
The prognostic factors of these complications remain poorly elucidated.
The type of stent to be used could be an explanation, however, no stent has been proven to be superior in this application to date.
Data from the literature suggest an influence of stents on the aortic geometry and the arterial axes of the digestive tract during respiratory movements.
The work of the Stanford vascular surgery team shows that the deformations and modifications of the geometry of these stents induced by the respiratory cycle could have a negative impact by migration, stenosis and thrombosis.
Study Overview
Study Type
Interventional
Enrollment (Anticipated)
15
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: Justine Mougin
- Phone Number: 01.40.94.82.04
- Email: j.mougin@ghpsj.fr
Study Contact Backup
- Name: Stephan HAULON, PR
- Phone Number: 01.40.94.22.97
- Email: s.haulon@ghpsj.fr
Study Locations
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Le Plessis-Robinson, France, 92350
- Recruiting
- Hopital Marie Lannelongue
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Contact:
- Stephan HAULON, Pr
- Phone Number: +33140942297
- Email: s.haulon@hml.fr
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- no contre indication for coroscanner
Exclusion Criteria:
- pregnant woman
- allergy to iodinated contrast media
- vulnerable people
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Protocol
Each patient agreeing to participate in the study will be distributed in the protocol group and will receive an angioscan according to the protocol in pre-operative and at the usual post-operative check-up within 3 months after the operation.
The usual procedure, foresees an angioscanner with injection of contrast product and the measurement of the images is performed during a deep breath.
In order to obtain a complete respiratory cycle, the study procedure foresees in addition to the usual procedure, an image measurement during a deep exhalation.
|
La procédure d'étude prévoit de prendre des images pendant une inspiration profonde ainsi que pendant une expiration profonde.
Cette deuxième mesure ne nécessite pas l'administration d'une quantité supplémentaire de produit de contraste.
Cependant, le temps d'exposition aux rayonnements ionisants est doublé.
L'examen utilise une acquisition hélicoïdale en mode rapide.
La durée de l'hélice est de l'ordre de 2 secondes en phase d'inspiration, puis il y a un délai de 5 secondes de machine (" demi-tour ") et à nouveau 2 secondes d'exposition en phase d'expiration, soit 4 secondes d'exposition effective aux rayonnements ionisants, le temps de la prise d'image et 9 secondes le temps total de l'examen.
l'image et 9 secondes la durée totale de l'examen.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Geometry of the visceral and renal branches
Time Frame: 1 day
|
An angioscanner will be performed with injection in inspiration and expiration (breathing cycle) before and after stent placement for a fenestrated aortic endografts After reconstruction of a 3D volume of the aorta and extraction of the central lines of the different target arteries, the angle of the different visceral and renal branches will be measured during the respiratory cycle (inspiration; expiration) and compared before and after stenting.
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1 day
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
July 7, 2021
Primary Completion (Anticipated)
July 7, 2023
Study Completion (Anticipated)
September 7, 2023
Study Registration Dates
First Submitted
July 28, 2021
First Submitted That Met QC Criteria
July 28, 2021
First Posted (Actual)
August 5, 2021
Study Record Updates
Last Update Posted (Actual)
August 5, 2021
Last Update Submitted That Met QC Criteria
July 28, 2021
Last Verified
July 1, 2021
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 2021-A00911-40
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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