[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;