Liver transplant candidates and SARS-CoV-2 infection: Results from an Italian multicenter cohort

ABSTRACT

Background: Despite the dominance of respiratory disease, acute-on-chronic liver failure (ACLF) and acute decompensation (AD) have been reported in patients with COVID-19 and preexisting liver disease, in particular cirrhosis. Moreover, COVID-19 has been associated with increased mortality in patients with end-stage liver disease (ESLD). Aim our study is to evaluate the impact of SARS-CoV-2 infection in patients with ESLD listed for liver transplant (LT). Methods: Data from adults listed for LT with laboratory-confirmed SARS-CoV-2 infection were collected from 7 LT centers across Italy. Results: From March 1st to October 31st 2020, 29 patients listed for LT were tested positive for SARS-CoV-2 infection. Twenty-one patients (72%) were male, median age was 59 years (20-71). The most common indication (70%) for LT was ESLD. The mean MELD score was 18 (8-32). At diagnosis, twenty patients (69%) presented at least one symptom 38% fever, 28% dry cough, and 31% respiratory distress. Notably, 25% of patients presented hepatic encephalopathy as first presenting symptom. The remaining 9 patients (31%) were completely asymptomatic nasopharyngeal swab was performed according to surveillance protocols. Twenty-one patients (70%) required hospitalization for the management of COVID-19. Respiratory support was necessary in 13 patients (45%) 5 (17%) required O2-supply, 4 (14%) non-invasive ventilation and 4 (14%) mechanical ventilation. Only five patients (17%) received at least one drug for infection treatment (see table). Heparin was administrated in 7 patients (28%). No bleeding episodes were reported. Eight (%) patients died after a median time of 6 days (2-29) from Covid-19 diagnosis, with a 30-day-mortality rate of 30%. Three patients died of liver failure, while the remaining of multiple organ failures. In the univariate analysis, factors associated with 30-days mortality were respectively presence of comorbidities (0.07), severity of liver disease according to MELD score (0.05) and severity of respiratory failure (0.011). In the cox-regression analysis, only the severity of respiratory failure was significantly associated with the mortality (HR 3.13, IC 1.53-6.3). Conclusions: COVID-19 is associated with elevated mortality in LT candidates, listed for ESLD.