Beside the cumulative dose risk factor, other unfavourable features such as advanced age, female sex, and the combination of anthracyclines and trastuzumab should be evaluated. In most cases, the late toxicity occurs within the first year following completion of chemotherapy but nevertheless the clinical manifestations can occur even after 10-20 years. This fact suggests that in women treated in (neo)adjuvant setting is strongly necessary an echocardiographic monitoring even after a longer time.