A young male admitted for dengue fever and systemic involvement developed ECG abnormalities on third day, in the form of prolonged QT interval and deep and symmetrical inversion of T wave. Echocardiography revealed akinesia of mid and apical segments and well contracting basal segments, typical of Takotsubo cardiomyopathy or stress cardiomyopathy. These changes were transient and echocardiography findings reverted to normal kinesis of left ventricle without any treatment or without any residual left ventricle dysfunction.