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Second Heart Sound: Fixed Splitting, Decreased Aortic Intensity

Second Heart Sound: Fixed Splitting, Decreased Aortic Intensity

This example shows a second heart sound (S2) with fixed splitting and an aortic component with decreased intensity. Once again, we are using fixed splitting to help you hear the difference in intensity between the aortic and pulmonic components of S2. This pattern is seen in the presence of long-standing severe pulmonary hypertension where the pressure in the pulmonary artery is markedly increased. Note the increased thickness of the right ventricular free wall.


Auscultation Sounds

auscultation sound from lesson
waveform





Position

Patient position
The patient's position should be sitting.

Listening Tips

S2:Fixed splitting, reduced intensity of aortic component


Waveform (Phonocardiogram)

Observe

//embedding heart animation

Authors

These authors contributed the audio recordings and text found in this reference guide: Jon Keroes, MD,Diane Wrigley, PA, and David Lieberman.
Medically reviewed by Dr. Barbara Erickson, PhD, RN, CCRN.



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