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Article
April 14, 1906

THE PULMONIC SECOND SOUND, IN HEALTH AND DISEASE.

Author Affiliations

BALTIMORE.

JAMA. 1906;XLVI(15):1111. doi:10.1001/jama.1906.62510420041005a

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Abstract

While due attention has been given to the difference existing between the pulmonic and systemic circulations, as a result of pulmonary consolidation, there seems to be a scarcity of comment regarding a comparative lessening of intra-aortic blood pressure.

By experiment and observation I have found in healthy individuals what appeared to be an accentuated pulmonic second sound which would disappear on having the patient walk briskly for a few minutes.

The point I wish to make is that healthy people who are inactive, engaged in sedentary occupations, have an apparent accentuated pulmonic second when in reality it is only a relative one, due to lessened intra-aortic pressure, the result of deficient exercise. Use is made of exercise to bring out signs of disease of the valve segments, but I have seen no literature bearing on this subject. What theory one may have, the fact remains, or at least is constant

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