[1]Cardiology Unit,Cardiothoracic Department,University Hospital Policlinico Consorziale of Bari,70124 Bari,Italy;
[2]Department of Emergency and Organ Transplantation,University of Bari,70124 Bari,Italy;
[2]Department of Emergency and Organ Transplantation,University of Bari,70124 Bari,Italy;
[2]Department of Emergency and Organ Transplantation,University of Bari,70124 Bari,Italy;
Heart failure; Biomarkers; Doppler; Renal resistance index; Chronic kidney disease;