Aortic stenosis in dogs and cats: past, present and future

Video 1: Subaortic stenosis in a dog. Subaortic fibrous hyperechogenic tissue (arrow) protruding into the LVOT is seen in the right parasternal or left parasternal long-axis views

Video 2: Subaortic stenosis in a cat. Subaortic fibrous hyperechogenic tissue (arrow) protruding into the LVOT is seen in the right parasternal or left parasternal long-axis views

Video 3: Subvalvular (arrow) and valvular aortic stenosis in a dog. (left apical view)

Video 4: Subvalvular lesion (arrow) is obstructing aortic outflow in a dog with subaortic stenosis, causing turbulent flow in aorta