In bronchial asthma, recurrent exposure to hypoxemia leads to sustained pulmonary vasoconstriction and narrowing of the pulmonary vasculature. Consequently, pulmonary hypertension develops leading to right heart enlargement with ventricular hypertrophy, and impaired cardiac function. Diastolic dysfunction of the right ventricle is the earliest hemodynamic change in bronchial asthma. Echocardiography is the most commonly used tool to assess cardiac function. Tissue Doppler Imaging (TDI) is an emerging ultrasound technology that measures cardiac function without the invasive and painful elements of cardiac catheterization and biopsy