The Effect of the CytoSorb® Filter to Remove Anticoagulants From the Circulation During Emergency Surgery for Aortic Dissection

NCT ID: NCT05235178

Last Updated: 2025-05-14

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

11 participants

Study Classification

OBSERVATIONAL

Study Start Date

2021-04-18

Study Completion Date

2024-11-05

Brief Summary

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The direct oral anticoagulants (DOACs) and particularly the FXa inhibitors are a concern in patients presenting with type A aortic dissection as this may contribute to severe bleeding complications. The antidote andexanet alfa (Ondexxya®) can interact with the heparin- anti-thrombin III (ATIII) complex which may neutralize the anticoagulant effect of heparin and the use of andexanet alfa before surgery necessitating heparin-anticoagulation has been reported to cause unresponsiveness to heparin. The investigators have preliminary in-vitro data demonstrating the ability to remove apixaban from reconstituted blod by hemadsorption and are now analyzing if aFXa inhibitor levels may be reduced by hemadsorption in the clinical setting analyzing this in patients using FXa inhibitors being operated acutely for type A aortic dissection.

Detailed Description

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Conditions

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Aortic Dissection Factor X Inhibition

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Study group

Due to catastrophic bleeding events in patients who are anticoagulated with FXa inhibitors undergoing emergency surgery on the proximal aorta and lack of antidote (not available in Norway and most likely not compatible with heparin), the department has decided to use hemadsorber in these cases.

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Indication for urgent surgery for proximal aortic disease
* Treatment with FXa inhibitor for more than 2 weeks
* Measured concentration of FXa inhibitor in therapeutic range (\>50 ng/mL) at the time of admission.
* Intraoperative use of Cytosorb® hemadsorber.

Exclusion Criteria

• Low FXa inhibitor concentration (\<50 ng/mL) at the time of admission
Minimum Eligible Age

18 Years

Maximum Eligible Age

100 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Oslo

OTHER

Sponsor Role collaborator

Oslo University Hospital

OTHER

Sponsor Role lead

Responsible Party

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Johannes Lagethon Bjørnstad

Consultant Surgeon and Associate Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Oslo University Hospital

Oslo, Oslo County, Norway

Site Status

Countries

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Norway

Other Identifiers

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20/27731

Identifier Type: -

Identifier Source: org_study_id

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