With and without LAMPOON (IMAGE) NIH/National Heart, Lung and Blood Institute Caption CAPTION: (Left) Illustration shows how, without LAMPOON, a transcatheter mitral valve implantation displaces the native anterior mitral valve leaflet causing LVOT obstruction. (Right) After LAMPOON, LVOT obstruction is reduced. DESCRIPTION: Illustration showing a transcatheter mitral valve implantation with and without LAMPOON. Credit Dr. Jaffar M. Khan and the Laboratory of Cardiovascular Intervention, led by Dr. Robert J. Lederman Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.