Ejection Sound in Pulmonary Hypertension

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1. Why is an ejection sound heard in pulmonary hypertension?

ANS: The high pressure in the pulmonary artery may dilate the pulmonary artery root, and the valve ring will be stretched. The tautened cusps, opening at a very rapid rate, probably produce the sound or click.

p

E J sound

E J sound

This high-frequency phonocardiogram and simultaneous carotid tracing is from a patient with severe pulmonary hypertension secondary to a VSD (Eisenmenger syndrome). Note that the pulmonary ejection (E J) sound does not diminish with inspiration.

This high-frequency phonocardiogram and simultaneous carotid tracing is from a patient with severe pulmonary hypertension secondary to a VSD (Eisenmenger syndrome). Note that the pulmonary ejection (E J) sound does not diminish with inspiration.

2. How does an ejection sound heard in pulmonary hypertension differ from one heard in PS?

ANS: In pulmonary hypertension the ejection sound is a. Often heard better lower down on the chest.

b. Rarely changed by respiration.

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