Major clinical centres in Sweden have witnessed an inflow of patients with chronic symptoms following initial outpatient care for coronavirus infection, suggestive of postural orthostatic tachycardia syndrome. This report presents the first case series of 3 Swedish patients diagnosed with postural orthostatic tachycardia syndrome more than 3 months after the primary COVID-2019 infections.
Postural orthostatic tachycardia syndrome (POTS) is the most prevalent chronic cardiovascular dysautonomia among young and middle-age individuals, predominantly women. It is characterized by chronic orthostatic intolerance, abnormal heart rate (HR) increase on standing, and deconditioning. The syndrome has been postulated to have post-viral autoimmune activation as a possible etiology.