text: Post COVID 19 Tachycardia Syndrome A Distinct Phenotype of Post Acute COVID 19 Syndrome In this paper we highlight the presence of tachycardia in post acute COVID 19 syndrome by introducing a new label for this phenomenon post COVID 19 tachycardia syndrome and argue that this constitutes a phenotype or sub syndrome in post acute COVID 19 syndrome We also discuss epidemiology putative mechanisms treatment options and future research directions in this novel clinical syndrome 