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The very unsatisfactory condition of our knowledge, as presented in our text-books, regarding the causation and significance of those physical signs grouped under the general head of "interrupted respiration," has led me to study these signs with considerable care for some years, and I present today some of the results of this study.
It is apparent at the outset that, by different writers, several totally different signs are considered under the general terms, "interrupted, cogwheel and wavy respiration," including irregular inspiration from weakness of the respiratory muscles; irregular action on account of painful affections, as pleurisy, pleurodynia and intercostal neuralgia; cardio-respiratory murmur; irregular inspiration from excitement, affecting either the respiratory mechanism itself or the heart, producing a systolic interruption in the latter case, covering the whole chest in certain cases; interruption from the presence of swelling of the mucous membrane of the bronchi; from the presence of gelatinous mucus in
HALL JN. INTERRUPTED RESPIRATION; A STUDY OF CERTAIN PHYSICAL SIGNS OF DISEASES OF THE CHEST.. JAMA. 1897;XXIX(3):115-116. doi:10.1001/jama.1897.02440290021001i