Behavior of Valve Leaflets


About this study

This is a prospective, interventional, multi-center trial to report the overall incidence of reduced leaflet motion identified by CT imaging in patients receiving a commercially approved LivaNova bioprosthetic aortic heart valve up to 1 year post implant.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:

  1. The subject has been successfully implanted with a commercially approved LivaNova bioprosthetic valve according to the instructions for use (IFU)
  2. The subject has signed the informed consent.
  3. The subject is at least 18 years of age at the time of implant and consent signature
  4. The subject will be available for post-operative follow-up through one year

Exclusion Criteria:

  1. The subject has a planned concomitant cardiac procedure other than coronary artery bypass graft (CABG) and septal myectomy, including MAZE procedures, atrial fibrillation surgery, and left atrial appendage exclusion or resection, or has a prosthetic heart valve or annuloplasty ring in any position
  2. The subject has any medical condition requiring long term (> 6 months) anticoagulation or dual antiplatelet therapy
  3. The subject has any clinical condition precluding the use of CT imaging with contrast
  4. The subject had a stroke or myocardial infarction (STEMI and NSTEMI) within 30 days of the planned valve implant surgery
  5. The subject has active endocarditis, myocarditis, or sepsis
  6. The subject is in cardiogenic shock manifested by low cardiac output and needing hemodynamic support
  7. The subject is already included in another clinical trial that could confound the results of this clinical investigation

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status

Rochester, Minn.

Mayo Clinic principal investigator

John Stulak, M.D.

Closed for enrollment

More information


  • The purpose of this study was to evaluate the safety and performance of the Freedom Solo valve in aortic valve replacement by clinical and hemodynamic outcomes. Read More on PubMed
  • The Freedom SOLO™ valve (Sorin Group, Italy) is a stentless aortic bioprosthesis designed for simplified implantation. The present multicentre study is the largest prospective evaluation of this prosthesis. Herein, we report on outcomes at 3-year follow-up. Read More on PubMed
  • A finding of reduced aortic-valve leaflet motion was noted on computed tomography (CT) in a patient who had a stroke after transcatheter aortic-valve replacement (TAVR) during an ongoing clinical trial. This finding raised a concern about possible subclinical leaflet thrombosis and prompted further investigation. Read More on PubMed
  • The German Aortic Valve Registry (GARY) seeks to provide information on a real-world, all-comers basis for patients undergoing aortic valve interventions. This registry comprises patients undergoing the complete spectrum of transcutaneous and conventional surgical aortic valve interventions. The aim of this study was to use the GARY registry to evaluate conventional and catheter-based aortic valve interventions in several risk groups. Read More on PubMed
  • The use of transcatheter aortic-valve replacement has been shown to reduce mortality among high-risk patients with aortic stenosis who are not candidates for surgical replacement. However, the two procedures have not been compared in a randomized trial involving high-risk patients who are still candidates for surgical replacement. Read More on PubMed
  • Many patients with severe aortic stenosis and coexisting conditions are not candidates for surgical replacement of the aortic valve. Recently, transcatheter aortic-valve implantation (TAVI) has been suggested as a less invasive treatment for high-risk patients with aortic stenosis. Read More on PubMed
  • The study aim was to investigate the early results, hemodynamics and left ventricular remodeling after aortic valve replacement (AVR) with the Freedom SOLO valve, a bovine pericardial valve bioprosthesis, using a single running suture line in a supra-annular position. Read More on PubMed

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