On the basis of the previous results, The Recupero dall'Infarto miocardico con G-CSF E Nuovi Esempi di Rigenerazione Avanzata (RIGENERA 2.0) trial will specifically test the efficacy of the combined effect of subcutaneous Granulocyte - Colony Stimulating Factor and sulphur hexafluoride on post-infarction left ventricular function.