Electrophysiological Evaluation of the Continuity and Transmurality of Surgical Ablation Lesions in Ex Vivo Perfused Porcine Hearts by Unipolar High-Resolution Mapping

Introduction: Currently, there is no method available for intra-operative evaluation of the completeness (transmurality and continuity) of surgical ablation lesions. This study aimed to investigate the changes in electrogram characteristics and activation patterns caused by different (non)transmural and (dis)continuous ablation lesions in ex...

Cardiac mapping on ex vivo perfused porcine slaughterhouse hearts: A Langendorff perfusion protocol for epicardial mapping on isolated beating hearts

Cardiac mapping techniques, in which an electrode-array is placed directly on the surface of the heart, were developed to gain a better insight in the underlying electropathology of cardiac arrhythmias. This procedure is performed in patients undergoing cardiac surgery, but here not all relevant cardiac structures and conduction inquiries can be...