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Congress of Internal Medicine
At the annual session of the Deutsche Gesellschaft für innere Medizin, held in Wiesbaden, April 12-15 (The Journal, May 29 and June 5, pp. 1710 and 1782), the principal paper on the third topic, the pathology and therapy of asthma, was presented by Professor Klewitz, chief physician at the Medizinische Universitäts-Klinik in Königsberg.We do not know for a certainty how an attack of asthma is brought about. It is probable that the cause is a spasm in the muscle layers of the bronchi, which may be produced in animals by the same substances which in man may bring on an attack. The spasm contracts the lumen of the bronchi, and the effect is still further increased by viscous secretions and congestion of the mucous membranes. The expiration period is lengthened, and the rhythm of breathing undergoes disturbances. We must distinguish two groups of patients. By
BERLIN. JAMA. 1926;86(24):1851. doi:10.1001/jama.1926.02670500039019
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