Transient Atrioventricular Block due to Complicated Dengue: Case Report

Dengue's cardiological manifestations are diverse; the virus is able to enter the myocardium and cause acute myocarditis that sometimes may go unnoticed and be asymptomatic, with benign outcomes; while in others, it may produce electro-cardiographic rhythm and conduction disturbances or signs of ventricular dysfunction that could lead to severe heart failure. We present the case of a 21-year-old man, a student, previously healthy, who was admitted to the Department of Cardiology with a diagnosis of dengue confirmed by serology and complicated with conduction disorders (2:1 advanced atrioventricular block) related to acute myocarditis due to dengue. This problem can be seen in areas where dengue is an emerging problem. Therefore it is critical to be aware of it in order to design strategies for prevention and treatment of complications.