Auscultation in Primary Care Aortic Stenosis (Diamond Shaped Systolic Murmur) Lesson Waveform Anatomy play pause Table of Contents 1First and Second Heart Sounds - Normal and Unsplit 2First and Second Heart Sounds - Reduced Intensity 3Second Heart Sound - Splitting 4Third Heart Sound Gallop 5Fourth Heart Sound Gallop 6Third and Fourth Heart Sound Gallop 7Summation Gallop at 120 beats per minute 8Second Heart Sound - Fixed Splitting 9Mid-Systolic Click 10Mitral Valve Leaflet Prolapse 11Aortic Stenosis (Diamond Shaped Systolic Murmur) 12Aortic Regurgitation (Decrescendo Diastolic Murmur) 13Mitral Regurgitation (pansystolic Murmur) 14Mitral Stenosis (Diastolic Murmur) Practice Quiz This video is an animation of Aortic Stenosis (Diamond Shaped Systolic Murmur) A#31 (lesson# 11) within course number 11. This is an auscultation example of a diamond shaped systolic murmur associated with aortic stenosis.The first and second heart sounds are normal. The murmur starts shortly after the first heart sound and ends before the second heart sound.The murmur is mid to high pitched.The anatomy tab shows a markedly thickened left ventricle. The aortic valve leaflets are thickened and immobile. The murmur is caused by turbulent flow across the stenotic aortic valve.