Transcatheter Mitral Valve-in-Ring for Progressive Mitral Stenosis after Prior Repair with Annuloplasty: A Novel Balloon Sizing Technique
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Michael Sola1, Thomas G. Caranasos3, Michael Yeung2, Cassandra J. Ramm2, Kristen Sell3, John P. Vavalle2 1School of Medicine, 2Division of Cardiology, 3Division of Cardiothoracic Surgery, The University of North Carolina at Chapel Hill, North Carolina, USA |
Video 1: Angiographic video displaying mitral valve-in-ring balloon sizing technique. The 25 mm compliant balloon was inflated within a stenotic mitral ring to determine which prosthetic transcatheter valve size was appropriate. As shown, this technique yielded no ‘waist’ and no resistance to movement, suggesting that a 29 mm valve was necessary.
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