ALLIANCE AVIV: Safety and Effectiveness of the SAPIEN X4 Transcatheter Heart Valve in Failing Aortic Bioprosthetic Valves

Hoag Memorial Hospital Presbyterian, Newport Beach, California, United States

Bay Area Structural Heart at Sutter Health, San Francisco, California, United States

Kaiser San Francisco, San Francisco, California, United States

Stanford University Medical Center, Stanford, California, United States

UC Health Medical Center of the Rockies, Loveland, Colorado, United States

Naples Community Hospital Healthcare System, Naples, Florida, United States

Emory University Atlanta, Atlanta, Georgia, United States

Piedmont Heart Institute, Atlanta, Georgia, United States

Northwestern University Chicago, Evanston, Illinois, United States

Alexian Brothers Hospital Network, Lisle, Illinois, United States

Cardiovascular Research Institute of Kansas, Wichita, Kansas, United States

MedStar Union Memorial Hospital, Baltimore, Maryland, United States

Brigham and Women's Hospital, Boston, Massachusetts, United States

Henry Ford Hospital Detroit, Detroit, Michigan, United States

Mayo Clinic, Rochester, Minnesota, United States

Atlantic Health System Morristown, Morristown, New Jersey, United States

Robert Wood Johnson University Hospital, New Brunswick, New Jersey, United States

The Valley Hospital, Ridgewood, New Jersey, United States

University of Buffalo, Buffalo, New York, United States

Cornelll University New York, New York, New York, United States

Columbia University Medical Center / NYPH, New York, New York, United States

Rochester General Hospital, Rochester, New York, United States

Carolinas Health System, Charlotte, North Carolina, United States

Novant Health and Vascular Institute, Charlotte, North Carolina, United States

The Christ Hospital, Cincinnati, Ohio, United States

The Cleveland Clinic Foundation, Cleveland, Ohio, United States

Oklahoma Heart Institute, Tulsa, Oklahoma, United States

Allegheny General Hospital, Pittsburgh, Pennsylvania, United States

Saint Thomas Health, Nashville, Tennessee, United States

University of Texas Memorial Hermann, Houston, Texas, United States

The Heart Hospital Baylor Plano, Plano, Texas, United States

University of Washington Seattle, Seattle, Washington, United States

St. Paul's Hospital Vancouver, Vancouver, British Columbia, Canada

Hamilton Health Sciences, Hamilton, Ontario, Canada

Institut Universitaire de Cardiologie et de Pneumologie de Québec- Universite Laval, Québec, Canada