The Medical Standard Volume 34, No. 4

The Medical Standard Volume 34, No. 4

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1911 edition. Excerpt: ...The periods of dyspnoea are all composed of about the same number of respirations and show regularly a progressive waxing and waning in the force of the respirations. The characteristic feature of Biot's type on the other hand, is its complete lack of any sort of rhythm. The periods of apnooa vary in length and occur at irregular intervals and there is constant irregularity in both the rate and the force of the individual respirations. Such essentiadly different types of breathing must, it seems to me, have a different cause and pathogenesis. Among the cases here reported well-marked Cheyne-Stokes breathing was observed only once. In this case it replaced Biot's type during the last two or three days of life. In two other eases a slight suggestion of the Cheyne-Stokes rhythm was observed in the tracings on two or three occasions during the intervals when the breathing was, in other respects, normal. The fact that CheyneStokes respiration is occasionally seen in patients who, at other times, show Biot's type only means that in such patients the intracranial conditions of--let us say--pressure or irritation are changing. Pathogenesis. Concerning the pathogenesis of Biot's meningitic type of breathing there is little to say, since almost nothing is known. The only suggestion of an explanation is that ventured by G. A. Gibson in his comprehensive historical and critical study of Cheyne-Stokes respiration. Accepting the conclusions of Marckwald that periodic breathing can only occur 'when some of the higher brain tracts have ceased to exert their influence upon the automatic centre in the medulla, he suggests that true CheyneStokes breathing may require the total abolition of such 'higher brain influences and that the meningitic or cerebral...show more

Product details

  • Paperback | 40 pages
  • 189 x 246 x 2mm | 91g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236933826
  • 9781236933829