<prompt> Answer this question truthfullyWhat is the role of echocardiography and ultrasound in diagnosing palpitations?  <response>: <reason> An echocardiography is a second line investigation that is employed in the diagnosis of patients presenting with palpitations when there is an increased suspicion of structural heart disease. These include conditions such as: Mitral Valve Prolapse Severe aortic regurgitation Severe mitral regurgitation Congenital heart diseases Mechanical prosthetic valves Hypertrophic cardiomyopathyHyperdynamic left ventricle, mildly dilated LVIDd 61 mm, stroke volume 50 mL. Large vegetation on the ventricle side of the aortic cusp 30 × 15 mm. Severe aortic regurgitation. Dense continuous-wave Doppler signal with a steep slope pressure half time 150 ms indicating severe aortic regurgitation. Moderate mitral regurgitation.ev:youtube7f-eZqbay9Y 