Status:

UNKNOWN

Platelet-activation and Optimal Inhibition in Patients With Atrial Fibrillation Undergoing Left Atrial Appendage Occlusion

Lead Sponsor:

R&D Cardiologie

Conditions:

Atrial Fibrillation

Eligibility:

All Genders

18+ years

Brief Summary

The POPULAR-LAAO registry is an open-label observational prospective registry to investigate hemostatic processes following left atrial appendage occlusion.

Detailed Description

This is an open-label observational prospective registry. The aim is to develop a better understanding of coagulation, platelet reactivity and prothrombotic factors in the first months after left atri...

Eligibility Criteria

Inclusion

  • The subject is aged 18 years or older
  • The subject is accepted/scheduled for left atrial appendage occlusion
  • The subject has a CHA₂DS₂-VASc Score ≥2 (male) or ≥3 (female)
  • The subject or legal representative is able to understand and is willing to provide written informed consent to participate in the trial.

Exclusion

  • Unable or unwilling to return for required follow-up visits and examinations
  • Mechanical heart valves or valvular disease requiring surgery or interventional procedure
  • Ongoing major bleeding or complicated or recent (\<72hours) major surgery
  • Known large oesophageal varices or decompensated liver disease (unless a documented positive opinion of a gastro-enterologist)
  • Severe thrombocytopenia (\<50,000/ml)
  • High likelihood of being unavailable for follow-up or psycho-social condition making study participation impractical.
  • Woman with child bearing potential who do not use an efficient method of contraception.
  • Positive serum or urine pregnancy test for woman with child bearing potential
  • Pregnancy or within 48 hours post-partum
  • unsuitable LAA anatomy for occlusion or thrombus in the LAA at the time of procedure
  • contraindications or unfavourable conditions to perform cardiac catheterization or transesophageal echocardiography (TEE)
  • atrial septal malformations, atrial septal defect or a high-risk patent foramen ovale that may cause thrombo-embolic events
  • atrial septal defect repair or closure device or a patent foramen ovale repair or any other anatomical condition as this may preclude an LAAO procedure
  • Mitral valve regurgitation grade 3 or more
  • Aortic valve stenosis (AVA\<1.0 cm2 or Pmax\>50 mmHg) or regurgitation grade 3 or more
  • Planned carotid endarterectomy (CEA) for significant carotid artery disease
  • Life expectancy of less than 1 year

Key Trial Info

Start Date :

February 24 2021

Trial Type :

OBSERVATIONAL

Allocation :

ESTIMATED

End Date :

December 1 2024

Estimated Enrollment :

120 Patients enrolled

Trial Details

Trial ID

NCT04705688

Start Date

February 24 2021

End Date

December 1 2024

Last Update

March 12 2021

Active Locations (1)

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1

St. Antonius Ziekenhuis

Nieuwegein, Utrecht, Netherlands, 3430 EM