Real-life data on heart failure before and after implantation of resynchronization and/or defibrillation devices – The Síncrone study Daniel Bonhorst, Sara Guerreiro, Cândida Fonseca, Nuno Cardim, Filipe Macedo, Pedro Adragão

Implantation of a cardiac resynchronization therapy defibrillator through a persistent left superior vena cava Miguel Nobre Menezes, Ana Bernardes, João de Sousa, Pedro Marques

Failure to deliver a shock in a dual-chamber implantable cardioverter-defibrillator: A case report Pedro A. Sousa, Rui Candeias, Ilídio Jesus