Data are summarized in Table 1. Median in-hospital length of stay was 24 days (IQR 12–26). Three patients were discharged home and 2 patients died. Median oxygen saturation at admission was 85% (IQR 81–94), the worst level during hospitalization was 75% (IQR 70–88). All hospitalized patients had signs of pneumonia on radiographs. Troponin at admission fell consistently within the limits for all patients. Two patients needed time in the intensive care unit and invasive ventilation; both of them were then admitted to a ward; in 1 a tracheostomy was performed to wean the patient from ventilatory support. Pronation therapy was performed in 2 patients. One patient needed 3 days of continuous veno-venous hemofiltration therapy. One patient received inotropic drugs with noradrenaline at maximum doses of 0.1 mcg/kg/min for 3 days. Extracorporeal life support was never used. During the in-hospital stay echocardiographic monitoring was used to evaluate graft function. With the exception of a mild reduction in the left ventricular ejection fraction in an older patient with a heart transplant that was more than 20 years old, no patients showed any changes in cardiac function. One patient had an ischaemic stroke and a sputum culture that was positive for Pseudomonas; he required targeted antibiotics treatment; unfortunately he developed sepsis and then he died. The other patient developed acute respiratory distress syndrome and died of respiratory failure.