Table of Contents
left button        right button
torso with stethoscope chestpiece
chestpiece

This video is an animation of Opening Snap and Second Heart Sound A#24 (lesson# 8) within course number 8.


An opening snap occurring early in diastole along with a single second heart sound can mimic a split second heart sound.

An opening snap is caused by thickened valve leaflets. When they open it produces a snapping sound.

The more severe the thickening the earlier in diastole the opening snap occurs. In this example you are hearing an opening snap which occurs 75 milliseconds after the start of the second heart sound.


This website is only for medical professional education. Contact a healthcare provider for medical care. Copyright 2017 © MedEdu LLC. All Rights Reserved. About | Privacy Policy | Email