A rare case of dengue fever in patient with dual inlet left ventricle

Dengue viral infection is one of the differential diagnoses in patients having fever with thrombocytopenia. Early diagnosis and timely supportive treatment form the basis for the successful management of these patients. Dengue infection associated with cyanotic congenital cardiac disease makes management more difficult and is associated with a fatal outcome. We report a case in which the patient presented with fever and thrombocytopenia diagnosed to be a case of dengue infection (NS-1 antigen-positive) and associated cyanotic congenital heart disease (double inlet left ventricle/univentricular heart). The patient was successfully managed with fluids and platelet transfusion. This case report mainly emphasizes the difficulties faced in hemodynamic monitoring and supportive management during the acute course of the disease.