Patients with chronic liver disease may suffer hepatic complications as a result of severe COVID-19. A study conducted by a research team led by Lukas Hartl, Thomas Reiberger and Michael Trauner from the Division of Gastroenterology and Hepatology of MedUni Vienna and University Hospital Vienna found that a rise in cholestasis parameters and subsequent damage to the bile ducts, so-called secondary sclerosing cholangitis (SSC), develops with striking frequency in patients with pre-existing liver disease. SSC occurs significantly more frequently after COVID-19 than after other serious illnesses. The study was published in Hepatology.