Second Heart Sound: Fixed Splitting, Decreased Aortic Intensity Auscultation Reference

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heart lung sounds waveform synthetic

Lesson

For heart sounds listen to the synthetic sound while reviewing this lesson.

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.

As you listen to this sound, observe the waveform. This is a graph of sound amplitude (loudness) on the vertical axis vs time on the horizontal axis.


Additional Listening Tips

S2: Fixed splitting, reduced intensity of aortic component.

Auscultation Method

maneuver
The recommended patient position is sitting
torso
For this sound, use stethoscope's diaphragm The recommended auscultation position for the stethoscope is pulmonic



Relevant Courses

If you wish to review a complete mobile concerning Second Heart Sound: Fixed Splitting, Decreased Aortic Intensity Auscultation Reference and related heart sounds, the modules(s) listed below may be useful. Each lesson includes text that explains the auscultatory sound and its clinical significance. The lesson also includes an audio track for playback. A waveform provides a great way to visualize the sounds. Finally, we also include an animation video. For heart sounds, the video illustrates heart muscle and valve movements along with blood flow. For lung sounds, the primary source of the sounds can be seen. Each module also includes a quiz.

Second Heart Sound: Fixed Splitting, Decreased Aortic Intensity Auscultation Reference