https://www.selleckchem.com/products/cevidoplenib-dimesylate.html We present the case of a 73-year-old female patient with acute esophageal necrosis, or black esophagus, and consecutive distal esophageal perforation. Additionally, the patient had the rare coincidence of duodenal necrosis or black duodenum. Black esophagus is usually diagnosed endoscopically and is characterized by a circular necrosis of the esophagus with abrupt normalization at the gastroesophageal junction. Black esophagus is a rare cause of symptoms of upper gastrointestinal bleeding with a mortality rate of up to 30 %. Complications include esophageal perforation and esophageal stricture formation. No causal therapy is available.We performed "Papillary muscle heads focalization" for three patients with severe functional mitral regurgitation with severe leaflet tethering (coaptation distance ≥1 cm and/or posterior leaflet angle ≥45 degrees). All separated papillary muscle heads were sutured together and both the anterolateral and posteromedial papillary muscles were reconstructed as single head papillary muscles. The stitches are positioned to adjust the levels of mitral leaflet tips, concerning the length of the marginal chordae connected to each head. A downsized annuloplasty is performed concomitantly. At discharge, no patient showed moderate/severe mitral regurgitation. Their coaptation lengths were 7.1, 8.5, and 8.3 mm.  High levels of D-dimer and low platelet counts are associated with poor outcome in coronavirus disease 2019 (COVID-19). As anticoagulation appeared to improve survival, hospital-wide recommendations regarding higher doses of anticoagulation were implemented on April 9, 2020.  To investigate if trends in D-dimer levels and platelet counts were associated with death, thrombosis, and the shift in anticoagulation.  Retrospective cohort study of 429 patients with COVID-19 at Karolinska University Hospital. Information on D-dimer levels and platelet counts was obtained from labora