LAUSR

SARS COV-2 infection has become a global threat, cardiovascular manifestations associated with Covid-19 has been noted in several publications, and bradycardia related to Covid-19 is a complication which is commonly reported. We reported six serial cases of bradycardia attributable to Covid-19. Four among them developed a complete atrioventricular block. These patients experienced clinical symptoms related to bradycardia initially required a permanent pacemaker implantation. One patient later however did not require permanent pacing due to spontaneous conversion to sinus rhythm. In comparison, the other two patients who developed transient sinus bradycardia experienced a self-limiting condition during their hospitalization period without requiring any cardiac pacing device nor medication to increase heart rate. Complete atrioventricular block and transient sinus bradycardia in these patients despite not having any history of bradycardia might be due to complex processes in the systemic inflammatory response in covid-19. Cardiac monitoring, hemodynamic evaluation, and strategy for permanent pacemaker in these patients should be treated as a case-by-case basis.