The American College of Chest Physicians has adopted as its emblem the thinking figure of Laennec. By so doing, it pays homage to the savant who permitted the birth of pneumology and it proclaims the action of the genius who made possible the clinical study of diseases of the heart and lungs. On the occasion of the reunion in Mexico City of a group of distinguished members of the American College of Chest Physicians, I want to offer in their honour, a brief outline of the man who symbolizes their College. I want to show them, in a few strokes, the brilliant work of the most illustrious of their predecessors in the science they cultivate, something like a historic medallion of Ren#{233} Th#{233}ophile Hyacinthe La#{235}nnec. When he began his studies in the old Faculty of Medicine of Paris on the 6 Frimario of the IXth year of the Revolution, that is, on the 27th of November of 1801, clinical medicine was only in its beginnings. Despite the 25 centuries elapsed in the midst of oft painful efforts, the clinical study of a patient was something more of an intuition than of an observation; more of a guesswork than a study. The clinical history was lacking sound basis since the symptoms had no correct semiological interpretation. Physical examination was limited to palpation, which rendered meager information and percussion was just starting as advocated by Auenbrugger and Corvisart. It was practised tapping directly on the chest with four fingers, which made it quite imperfect in its beginnings. Yet it was capable of rendering the first positive information such as the concept of fullness and emptiness, the dimensions of the precordial area, the presence of fluid within the pleural cavity and the congestive state of the lung. Auscultation did not exist. Nobody had made of it an exploratory method until one day of the year 1816, in one blow of brilliant intuition, it was invented by Laennec. Before his time, surely, there were some who listened to the chest of their patients, and they might even have obtained isolated data. Before him many had, no doubt, listened, but had not learned to listen. That is why Laennec is one of those rare cases in science: that of the discoverer without precursors. Only the old father of medicine, Hippocrates in his book “An Account of the Diseases,” speaks of sucusion, which indicates the presence of hydropneumothorax. “You will know by this-he saidthat the chest has water and not pus; and applying the ear over the side of the chest, you will hear a noise similar to that of boiling vinegar.” This assertion is false, as pointed out by Laennec, but the proof is beyond doubt that Hippocrates evidently used direct auscultation. Hippocrates also
Read full abstract