Please Sign-in or Sign-up

Please signin or create an account using the 'Join' link in the upper right corner of this page.

First Heart Sound plus Aortic Ejection Click case includes text, aud

A single first heart sound (S1) followed by an aortic ejection click (AEC) can also mimic a split first heart sound. An AEC follows S1 by 50 milliseconds. An aortic ejection click is caused by thickened aortic valve leaflets. This is commonly seen in a bicuspid aortic valve, a congenital abnormality where someone is born with two aortic valve leaflets instead of the normal three. Listen carefully to the second sound of the pair. If it is an AEC it will have a shorter duration and a higher pitch than the first sound of the pair (S1). The AEC is best heard at the Aortic valve area where splitting of S1 is not heard.

Listen

patient torso with stethoscope chestpiece
patient position during auscultation
The patient's position should be sitting.

static waveform for 19

Visualize

static waveform for 19


Observe

An aortic ejection click is caused by thickened aortic valve leaflets. This is commonly seen in a bicuspid aortic valve, a congenital abnormality where someone is born with two aortic valve leaflets instead of the normal three.


t: First Heart Sound plus Aortic Ejection Click case


An error has occurred. This application may no longer respond until reloaded. Reload 🗙