Vicious circles in disease / by Jamieson B. Hurry.

  • Jamieson Boyd Hurry
Date:
1913
Catalogue details

Licence: Public Domain Mark

Credit: Vicious circles in disease / by Jamieson B. Hurry. Source: Wellcome Collection.

    178/306 (page 158)
    Obstruction is frequently caused by adenoids, which tend to enlarge as the result of a Circle : <c The steps in the production of the disease are simple. Whenever an infant or young child “ catches cold,” the swelling of the adenoid tissue is a necessary accompaniment of the swelling of the nasal mucous membrane. Repeated attacks of this description .... leave the lymphatic tissue in a state of chronic inflammation. A Vicious Circle is set up, the child takes cold more readily than ever, and eventually the adenoid growths may become of sufficient size to cause the characteristic symptoms of obstruction.” 1 Waggett regards the Circle associated with adenoids as dependent on “ the permanent catarrhal condition of the nose induced by the actual presence of obstructing adenoids and the infected clefts between their folds.” 2 Another cause for adenoid growth is to be found in the diminished barometric pressure accompanying the act of inspiration in cases of nasal obstruction. Every such act diminishes the pressure behind the obstruction, leads to hyperaemia and hyperplasia and so aggravates the obstruction. Risley draws attention to the “ Vicious Circle of events,” 3 which occurs when, owing to deformities of the scroll bones of the nostrils and to deviations of the septum or vomer, the nasal chamber is so 1 Crowley, The Hygiene of School Life, p. 38. 2 Diseases of the Nose, p. 85. 3 British Med. J.} 1906, Vol. II., p. 1869.