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Aneurysm, Abdominal AorticUltra_EvarNCT04196543

Interest of a Post-operative Ultrasound With Systematic Use of Ultrasonic Contrast in the Follow-up of Aortic Endoprosthesis: Prospective Study at the University Hospital of Nice

A study testing écho-doppler with ultrasonar Sonovue® injection in people with Aneurysm, Abdominal Aortic, run by Centre Hospitalier Universitaire de Nice at 1 site in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a prospective study conducted on a population with an aortic endoprosthesis in the context of an abdominal aortic aneurysm. The study's objective is to standardize the ultrasound methodology in the monitoring of aortic endoprosthesis in immediate post-operative care by comparing the results with CT-scan (gold… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Aneurysm, Abdominal Aortic
What is being tested?
écho-doppler with ultrasonar Sonovue® injection
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
1 siteFrance
Study dates
28 Feb 2020to 10 Dec 2022
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients over 18 years of age.
  • Abdominal aortic aneurysm treated with aortic stent.
  • Signature of informed consent.
  • Person affiliated or beneficiary of a social security scheme

Who cannot join

  • Hypersensitivity to sulphur hexafluoride or to these excipients (Macrogol 4000, Distearoylphosphatidylcholine, Dipalmitoylphosphatidylglycerol sodé, Palmitic acid).
  • Right-left shunt patient
  • Patient with severe pulmonary hypertension (pulmonary blood pressure > 90 mm Hg),
  • Patient with uncontrolled systemic hypertension
  • Adult patients with respiratory distress syndrome.
  • Dobutamine patient in patients with a pathology suggesting cardiac instability
Show all 12Show fewer
  • Hypercoagulation, recent thromboembolic accident
  • Fenestrated aortic stent
  • Pregnant or nursing woman.
  • Severe heart failure.
  • Person deprived of liberty by judicial or administrative decision.
  • Person subject to legal protection.

Trial locations and contacts

1 site in 1 country.

France1 site
  • University Hospital of Nice

    Nice, 06000

Other trials in France

About this study

This is a prospective study conducted on a population with an aortic endoprosthesis in the context of an abdominal aortic aneurysm. The study's objective is to standardize the ultrasound methodology in the monitoring of aortic endoprosthesis in immediate post-operative care by comparing the results with CT-scan (gold standard). To improve ultrasound methodology, the investigators propose to use the VESMA protocol for ultrasound diameter measurement at four incidences. In addition, the use of ultrasonic contrast agents increases the accuracy of vascular structures, the quality of the ultrasound blood flow image and the duration of signal enhancement. This makes it possible to visualize small gauge vessels and those with slow flows. In this way, the investigators could improve the ultrasound technique for measuring aneurysm bag diameters and endoleak detection. Moreover, the toxicity of iodinated contrast agents is the third cause of acute renal failure in hospitalized patients and is all the more frequent when the investigators increase injections. Improving the quality of ultrasound investigations for the monitoring of aortic endoprosthesis would therefore allow us to reduce the number of CT-scan performed in this population and thus reduce irradiation and the injection of nephrotoxic products. Thereby, the investigators would like to integrate the technique into the systematic follow-up of patients who have benefited from the placement of an aortic endoprosthesis by replacing the CT-scan.

Being tested
écho-doppler with ultrasonar Sonovue® injection
Medical subject headings
Aortic Aneurysm, Abdominal

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • écho-doppler with ultrasonar Sonovue® injectionOther

    During this unique visit they will benefit from 2 imaging exams performed by two different operators:

    • Echo-doppler without "standard method" contrast injection (common practice)
    • An echo-doppler with Sonovue® ultrasound injection "Ultra_evar method" (2.5 ml bolus 2-3 seconds) During this examination, the endoprosthesis and the aneurysm sac will be scanned according to the 4 incidences described above in order to objective whether or not there is a endoleak.

    The patient then performs the control CT-scan prior to discharge from hospital.

    The results of the medical imaging exams will be communicated to them before the hospital discharge, once the CT-scan has been performed.

    A cross-review of the studies will be performed later.

Study groups in NCT04196543
Study groupRoleWhat they receive
écho-doppler with ultrasonar Sonovue® injectionExperimentalNot described
Receives: Other: écho-doppler with ultrasonar Sonovue® injection

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. measurement of anterior-posterior diameters according to 4 aortic endoprosthesis incidences after PCUS injection in immediate post-operative

    Measured: 1 day

  2. detection of endoleaks after PCUS injection in immediate post-operative

    Measured: 1 day

  3. measurement of anterior-posterior diameters of endoleaks after PCUS injection in immediate post-operative

    Measured: 1 day

Secondary outcomes (4)
  1. Description of endoleaks after PCUS injection in immediate post-operative

    Measured: 1 day

  2. Description of exit doors of heart after PCUS injection in immediate post-operative

    Measured: 1 day

  3. Description of their flows after PCUS injection in immediate post-operative

    Measured: 1 day

  4. Description of maximum circulatory speeds after PCUS injection in immediate post-operative

    Measured: 1 day

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 Dec 2019
  2. Study start28 Feb 2020
  3. Primary completion10 Dec 2021
  4. Study completion10 Dec 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Other
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04196543
Sponsor's protocol ID
19-AOI-05
Acronym
Ultra_Evar
Status last verified
Mar 2026
First submitted
13 Nov 2019
Last updated
24 Mar 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Johnston KW, Rutherford RB, Tilson MD, Shah DM, Hollier L, Stanley JC. Suggested standards for reporting on arterial aneurysms. Subcommittee on Reporting Standards for Arterial Aneurysms, Ad Hoc Committee on Reporting Standards, Society for Vascular Surgery and North American Chapter, International Society for Cardiovascular Surgery. J Vasc Surg. 1991 Mar;13(3):452-8. doi: 10.1067/mva.1991.26737.

    PubMed 1999868
  • Manning BJ, Kristmundsson T, Sonesson B, Resch T. Abdominal aortic aneurysm diameter: a comparison of ultrasound measurements with those from standard and three-dimensional computed tomography reconstruction. J Vasc Surg. 2009 Aug;50(2):263-8. doi: 10.1016/j.jvs.2009.02.243.

    PubMed 19631858
  • Bredahl KK. Response to commentary on "Re: Contrast Enhanced Ultrasound can Replace Computed Tomography Angiography for Surveillance After Endovascular Aortic Aneurysm Repair". Eur J Vasc Endovasc Surg. 2017 Mar;53(3):446-447. doi: 10.1016/j.ejvs.2016.12.029. Epub 2017 Jan 26. No abstract available.

    PubMed 28131537
  • Amrani S, Eveilleau K, Fassbender V, Obeid H, Abi-Nasr I, Giordana P, Hallab M, Leftheriotis G. Assessment of the systolic rise time by photoplethysmography in peripheral arterial diseases: a comparative study with ultrasound Doppler. Eur Heart J Open. 2022 Apr 28;2(3):oeac032. doi: 10.1093/ehjopen/oeac032. eCollection 2022 May.

    PubMed 35919340

Questions about this trial

What is this clinical trial studying?

A study testing écho-doppler with ultrasonar Sonovue® injection in people with Aneurysm, Abdominal Aortic, run by Centre Hospitalier Universitaire de Nice at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 24 Mar 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

measurement of anterior-posterior diameters according to 4 aortic endoprosthesis incidences after PCUS injection in immediate post-operative (time frame: 1 day). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04196543, which also lists 4 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Mar 2026.

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