TY - BOOK AU - Ben-Dor, Itsik AU - Case, Brian C AU - Medranda, Giorgio AU - Medvedofsky, Diego AU - Rogers, Toby AU - Satler, Lowell AU - Waksman, Ron AU - Weissman, Gaby TI - A Word of Caution Before Treating Aortic Stenosis in Patients With Concomitant LVOT Obstruction SN - 2666-0849 PY - 2022/// KW - IN PROCESS -- NOT YET INDEXED KW - MedStar Heart & Vascular Institute KW - MedStar Washington Hospital Center KW - Interventional Cardiology Fellowship KW - Case Reports N2 - Patients with aortic stenosis and concomitant left ventricular outflow tract obstruction undergoing transcatheter aortic valve replacement are at risk of hemodynamic collapse after the procedure due to worsening left ventricular outflow tract obstruction. We present 3 cases highlighting the important interplay between these 2 disease states and associated diagnostic and treatment challenges. (Level of Difficulty: Advanced.). Copyright © 2022 The Authors UR - https://dx.doi.org/10.1016/j.jaccas.2022.01.025 ER -