Auscultation Location

Coarctation of the Aorta Auscultation Reference

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Lesson

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

This is an example of coarctation of the aorta, a congenital abnormality.

This first heart sound is normal. The second heart sound is intensified.

There is diamond shaped murmur occupying most of systole and a high-pitched decrescendo murmur in the first half of diastole.

In the anatomy tab you can see a constriction in the descending aorta which is responsible for the systolic murmur.

There is regurgitant flow from the aorta into the left ventricle which causes the diastolic murmur.

The left ventricle wall thickness is increased due to aortic pressure elevation caused by the aortic coarctation.

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

Systole: Diamond-shaped murmur, possible early systolic ejection sounds.
S2: Increased intensity.
Diastole: High pitched, decrescendo, early murmur.

Auscultation Method

The recommended patient position is sitting leaning forward

For this sound, use stethoscope's diaphragm The recommended auscultation position for the stethoscope is aortic

Relevant Courses

If you wish to review a complete mobile concerning Coarctation of the Aorta 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.

Congenital Abnormalities	29
Introduction to Clinical Electrophysiology and the ECG	311

Coarctation of the Aorta Auscultation Reference