Inclusion Criteria:  Patients > 18 years old who undergo heart transplant during the recruiting period  Exclusion Criteria:  Patients with moderate or severe Primary Graft Dysfunction Patients on invasive mechanical ventilation 15 days after heart transplant Patients on renal replacement therapy, continuous or periodic, 15 days after heart transplant Heart Transplant due to a cardiomyopathy that could potentially recur on the graft (cardiac amyloidosis, Chagas disease or sarcoidosis, amongst others) Multiorgan transplant