Systolic Murmurs Aortic Stenosis -Mild Lesson Waveform Anatomy play pause Table of Contents 1Innocent Murmur 2Aortic Sclerosis (Musical Murmur) 3Aortic Stenosis -Mild 4Aortic Stenosis - Severe 2 5Mitral Regurgitation 6Mitral Valve Prolapse (Click with Late Systolic Murmur) 7Hypertrophic Cardiomyopathy Practice Quiz This video is an animation of Aortic Stenosis -Mild A#26 (lesson# 3) within course number 3. In early systole there is an aortic ejection click followed by a diamond shaped systolic murmur which ends mid-way through systole. It is a mid-frequency murmur. As the condition worsens the murmur frequency increases.The first heart sound is normal. The second heart sound is physiologically split. The aortic component of the second heart sound is louder than normal.The Anatomy tab shows thickened aortic valve leaflets with decreased movement. The left ventricle wall thickness is increased.