Right ventricular outflow tract (RVOT) obstruction after single lung transplantation. Deep transgastric RVOT views at 55° during (A, B) positive-pressure expiration and (C, D) inspiration show extrinsic RVOT collapse from positive-pressure ventilation. (See Video 7, view video online.) LV, left ventricle; PE, pericardial effusion; RV, right ventricle. Reproduced with permission of Taylor and Francis Group, LLC, a division of Informa plc. from Denault et al.251 © 2018 Taylor and Francis Group.