Endomyocardial biopsy is a common procedure for monitoring cardiac allograft rejection; several techniques have been described so far, throughout different access sites and under echocardiographic or X-ray control. If you like this video, please visit http://mmcts.org/tutorial/104 to see the full tutorial. The Multimedia Manual of Cardio-Thoracic Surgery (MMCTS) is produced by The European Association for Cardio-Thoracic Surgery (EACTS). MMCTS is the world’s premier video-based educational resource for cardiovascular and thoracic surgeons; freely accessible - and essential - for all. © The Author. Published by MMCTS on behalf of the European Association for Cardio-Thoracic Surgery. All rights reserved.