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Aortic Arch AneurysmNCT04489277

Silent Brain Infarction After Endovascular Arch Procedures

An observational study of Aortic Arch Aneurysm, run by Medical University of Vienna at 2 sites in 2 countries.

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 the largest study to evaluate incidence and distribution of silent cerebral infarction (SBI) following endovascular repair for disease of the aortic arch. Also, it is the first cohort to include total endovascular arch repair and devices flushed with carbon dioxide (CO2) to prevent gaseous cerebral… Read more about this study

Who is it for?
Ages 18 to 100 years
Conditions the study is for
Aortic Arch Aneurysm
What is being tested?
Endovascular Arch Procedures
Type of treatment
Medical device
How many people
91 participants
Where
2 sitesin 2 countries
Study dates
1 Sep 2018to 31 Jan 2020
How long will I take part?
17 Months
Phase
Observational
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 to 100 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Consecutive patients, who received routine postoperative DW-MRI within 7 days after endovascular aortic arch repair between September 2018 and January 2020 at the University Hospital Hamburg-Eppendorf (Hamburg, Germany) and Marie Lannelongue Hospital (Paris, France) were identified.

Who may be able to join

  • Included patients underwent a proximal endograft deployment in Ishimaru zone 0 to 3

Who cannot join

  • Missing preoperative computed tomography angiography (CTA) scan of the chest and any circumstances that precluded the DW-MRI to be performed in the appropriate time window, such as a medical condition or an MRI contraindication

Trial locations and contacts

2 sites in 2 countries.

2 sites in 2 countries

France1 site
  • Marie Lannelongue Hospital (Paris, France)

    Paris

Other trials in France

Germany1 site
  • University Hospital Hamburg-Eppendorf (Hamburg, Germany)

    Hamburg

Other trials in Germany

About this study

Official title: Silent Brain Infarction After Endovascular Arch Procedures: Preliminary Results From the STEP Registry

This is the largest study to evaluate incidence and distribution of silent cerebral infarction (SBI) following endovascular repair for disease of the aortic arch. Also, it is the first cohort to include total endovascular arch repair and devices flushed with carbon dioxide (CO2) to prevent gaseous cerebral embolization.

Read the detailed description

Introduction. Poor data exist concerning the rate of silent cerebral ischemic events following endovascular treatment of the aortic arch. The objective of this work was to quantify these lesions using the STEP registry.

Methods. This multicentre retrospective cohort study included consecutive patients treated with an aortic endoprosthesis deployed in Ishimaru zone 0 to 3 and brain diffusion-weighted magnetic resonance imaging (DW-MRI) within 7 days after the procedure. DW-MRI was performed to identify the location and number of new silent brain infarctions (SBI), microbleeds ans general outcome of the patients.

Being tested
Endovascular Arch Procedures
Keywords
Thoracic endovascular aortic repair, Silent cerebral infarction, Stroke, Magnetic resonance imaging, DW-MRI, Aortic arch disease
Medical subject headings
Aneurysm, Aortic Arch, Stroke

What participants receive

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

  • Endovascular Arch ProceduresDevice

    Endovascular Arch Procedures (TEVAR, Branch endografts, Fenestrated endografts)

Study groups in NCT04489277
Study groupRoleWhat they receive
Patients with Silent Brain Infarctiontreated with an aortic endoprosthesis deployed in Ishimaru zone 0 to 3 and brain diffusion-weighted magnetic resonance imaging (DW-MRI) within 7 days after the procedure with silent brain infarction
Receives: Device: Endovascular Arch Procedures
Patients without Silent Brain Infarctiontreated with an aortic endoprosthesis deployed in Ishimaru zone 0 to 3 and brain diffusion-weighted magnetic resonance imaging (DW-MRI) within 7 days after the procedure without silent brain infarction
Receives: Device: Endovascular Arch Procedures

What is being measured

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

  1. frequency of silent cerebral infarcts on DW-MRI

    Primary outcomes were the frequency of silent cerebral infarcts on DW-MRI after endovascular arch procedures, and to identify the number, the distribution, and predictors of these lesions.

    Measured: 7 days

Secondary outcomes (1)
  1. perioperative ischemic stroke

    Secondary outcomes were perioperative ischemic stroke defined as a brain infarction of ischemic etiology which occurs during surgery or within 30 days after surgery, TIA, hemorrhagic stroke, 30-day mortality, spinal cord ischemia, length of stay and discharge disposition.

    Measured: 30 days

Timeline

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

  1. First posted28 Jul 2020
  2. Study start1 Sep 2018
  3. Primary completion31 Jan 2020
  4. Study completion31 Jan 2020

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Other
Enrolment
91 participants (actual)
Target duration
17 Months
IDs, dates and publications
ClinicalTrials.gov ID
NCT04489277
Sponsor's protocol ID
INSERM UMR_S 999
Status last verified
Aug 2020
First submitted
23 Jul 2020
Last updated
6 Aug 2020
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Charbonneau P, Kolbel T, Rohlffs F, Eilenberg W, Planche O, Bechstein M, Ristl R, Greenhalgh R, Haulon S; STEP collaborators. Silent Brain Infarction After Endovascular Arch Procedures: Preliminary Results from the STEP Registry. Eur J Vasc Endovasc Surg. 2021 Feb;61(2):239-245. doi: 10.1016/j.ejvs.2020.11.021. Epub 2020 Dec 22.

    PubMed 33358103

Questions about this trial

What is this clinical trial studying?

An observational study of Aortic Arch Aneurysm, run by Medical University of Vienna at 2 sites in 2 countries.

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 1 inclusion and 1 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 6 Aug 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in France, Germany. 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?

frequency of silent cerebral infarcts on DW-MRI (time frame: 7 days). 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 NCT04489277, which also lists 1 linked publication.

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 6 Aug 2020.

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