A 45-year-old male patient with no significant past medical history is admitted to the Intensive Care Unit for an episode of aborted sudden cardiac death that had occurred during a physical effort (football match), 45 min before his admittance to the hospital. After being resuscitated by the Mobile Emergency Team, he was intubated; he received iv adrenaline and noradrenaline and was taken to the Catheterization Laboratory. An urgent coronary angiography was performed which demonstrated acute occlusion of the left anterior descending coronary artery. He was treated with PTCA and stent implantation. In the ICU, his first echocardiography showed an LVEF of 20%. An ECG was recorded and is presented in Fig. 1.