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Updated: June 1, 2025
In the year 1816 a French physician, Réné Théophile Hyacinthe Laennec, achieved undying fame by publishing to the world an account of his labors in the application of mediate auscultation and of percussion to the diagnosis of the diseases of the chest.
Dodd entered on the beaten ground of her daughter's symptoms. The noble surgeon stopped her civilly but promptly. "Auscultation will give us the clue," said he, and drew his stethoscope.
Auscultation is several times mentioned and described by the Hippocratic physicians, who used the direct method of listening and not the mediate method devised by Laennec. There are, however, certain cases in which the modern physician still finds the older non-instrumental Hippocratic method superior.
She inspects the Linnet from end to end; with her front tarsi she fumbles at the breast and belly. It is a sort of auscultation by sense of touch. The insect becomes aware of what is under the feathers by the manner in which these react. If scent lends its assistance, it can only be very slightly, for the game is not yet high. The wound is soon found.
Besides the instruments of precision referred to above, more careful percussion, more careful auscultation, more careful measurements, roentgenoscopy and fluoroscopic examination of the heart, and a study of the circulation with the patient standing, sitting, lying and after exercise make the determination of circulatory ability a specialty, and the physician who becomes an expert a specialist.
Lately cocaine has been found to benumb the sensibility of the more delicate membranes, as those of the eye and the throat. In auscultation, or the ascertaining of the state of the internal organs by listening to their sound, a very valuable instrument is the stethoscope.
Then there was one who ventured to come forward and, in his turn subject the patient to auscultation. But instead of declaring himself, he continued reflecting, shaking his head anxiously. At last he stammered that in his opinion one must await further developments. Another doctor, however, at once took his place, and this one expressed a decided opinion.
Few of his generation became so accomplished as he in the arts of direct exploration; coming straight from the Parisian experts, I have examined many patients with him, and have had frequent opportunities of observing his skill in percussion and auscultation. One element in his success, a trivial one compared with others, but not to be despised, was his punctuality.
Auenbrugger's "Inventum novum" of percussion, recognized by Corvisart, extended the field; but the discovery of auscultation by Laennec, and the publication of his work "De l'Auscultation Mediate," 1819, marked an era in the study of medicine. The clinical recognition of individual diseases had made really very little progress; with the stethoscope begins the day of physical diagnosis.
All three of them agreed in stating that the case was one of advanced phthisis, complicated by nervous incidents which invested it with a peculiar character. Doctor Bonamy wagged his head as though to say that such an ensemble of testimony could leave no room for doubt. Forthwith, he subjected the patient to a prolonged auscultation. And he murmured: "I hear nothing I hear nothing."
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