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  • Title: Novel use of perfusion balloon inflation to avoid outflow tract obstruction during transcatheter mitral valve-in-valve replacement.
    Author: Herrmann HC, Szeto WY, Litt H, Vernick W.
    Journal: Catheter Cardiovasc Interv; 2018 Sep 01; 92(3):601-606. PubMed ID: 28417602.
    Abstract:
    Left ventricular outflow tract (LVOT) obstruction is a recognized complication of transcatheter mitral valve-in-valve replacement in previous surgical prostheses. We describe a patient who was high risk for repeat open surgery in whom the LVOT was compromised by a surgical strut and the potential for LVOT obstruction. A novel approach to avoiding this complication was utilized. A perfusion balloon was inflated in the outflow tract to provide an opposing force during mitral valve deployment resulting in less flaring of the strut into the outflow tract thereby improving the neo-LVOT area. No outflow tract obstruction occurred. The advantages of this approach as well as other alternative solutions to this problem are discussed. © 2017 Wiley Periodicals, Inc.
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