email article The possibility of COVID-19 long-haulers experiencing symptoms suggestive of postural orthostatic tachycardia syndrome (POTS) was strengthened by a small case series from Sweden. Three young patients who were suspected of having COVID-19 in the spring of 2020 were diagnosed with POTS more than 3 months later on the grounds of orthostatic tachycardia and chronic symptoms of orthostatic intolerance after exclusion of competing etiologies, reported a group led by Madeleine Johansson, MD, PhD, of Lund University and Skåne University Hospital in Malmö, Sweden, in a paper published online in "Much remains unknown about the specific mechanisms responsible for the POTS-like symptoms in post-COVID-19 patients or how long these symptoms will last, but chronic symptoms are expected in a subset of patients based on this initial clinical experience," Johansson's team said.