CROUP

n. Krup. Lat., angina laryngea (seu tracheal is). Fr., c. Ger., C., hdutige Brdune. It.,c. Sp.,crwp. 1. A term (said to be of Scottish origin) formerly applied to an acute inflammation of the mucous membrane of the larynx or the larynx and trachea, characterized by the formation of a fibrinous exudation on the surface of the membrane which encroaches on the calibre of the larynx or trachea, and thus gives rise to a hoacse, ringing cough and sonorous, labored, and seriously or even fatally obstructed breathing. It occurs mostly in young children, and is distinguished from spasmodic and oedematous obstruction of the larynx by its gradual onset, by the fact that both inspiration and expiration are impeded, and by the continuance of the obstruction by day as well as by night. Those who use the word in this sense regard the disease as of rare occurrence, as purely a local inflammation, not specific and not infectious. 2. As now more and more accepted, a diseased state having the same symptoms, but constituting a laryngeal or laryngeal and tracheal manifestation of diphtheria; therefore characterized by an exudation into the substance of the mucous membrane instead of on its surface, giving rise to swelling and necrosis of the superjacent portion. 3. A popular term for any acute laryngeal affection accompanied by obstructed breathing or a hoarse, ringing cough, especially catarrh of the larynx, with oedema or spasm, or both. Absteigender C. (Ger.). See Descending c. Ascendant c., Ascending c. Ger., aufsteiqender C. C. beginning in the bronchi or the trachea, and ascending to the larynx [B. Fraenkel (A, 319).] Bronchial c. See Croupous BRONCHITIS. Catarrhal c. See C. (3d def.). Cerebral c.. Cerebral spasmodic c. Of Clarke and other English writers, a form of c. which was supposed to be due to cerebral disorder. "Vogel says that autopsies did not reveal any brain lesion, and he considers the trouble as identical with spasm of the glottis. [D, 29.] Chronic c. See Croupous BRONCHITIS. C'athmen (Ger.). Crpupy breathing.- C. d'emblee (Fr.). A form of c. in which there is laryngeal obstruction from the first. [D, 72.] C'husten (Ger.). A croupy cough. C.-kettle. A kettle provided with an alcohol lamp for boiling water, and with a long spout for carrying the steam to the patient's mouth. [E.] C.-membrane. The plastic deposit or exudation which occurs in c. [D.] C. membraneux (Fr.). See C. (1st and 2d defs). Descendant c., Descending c. Ger., absteigender C. C. beginning in the throat and descending to the trachea and bronchi. [B. Fraenkel (A, 319).] Diphtheritic c., Endemic c., Epidemic c. See C. (2d def.). False c. See C. (3d def.). Fibrinonecrotisirender C. [B Fraenkel] (Ger.). See C. (2d def.). Fibrinous c. See C. (1st def.). Idiopathic c. See C. (1st def.). Laryngeal c. C. confined to the larynx. [L. 20.] Membranous c. See C. (1st and 2d def's). Muco-purulent c. C. in which the exudation is muco-purulent. [D.] Palpebral c. See Diphtheritic CONJUNCTIVITIS. Pharyngeal c. C. of the pharynx. [a, 25.] Primary c. See C. (1st def.). Pseudo-c. See C. (3d def.). Pseudo-membranous c. See C. (1st and 2d def's). Secondary c. Ger., secunddrer C. Laryngeal stenosis in consequence of some other disease, of an extension of a morbid proce from the parts above the glottis to the larynx, or as a manifestation of some general or other laryngeal disease. [B. Fraenkel (A, 319).] Spasmodic c. See C. (3d def.). Spurious c. See C. (3d def.). Symptomatic c. See Secondary c. True c. Fr., vrai c. See C. (1st and 2d def's). Uterine c. See Croupous KNDOMKTRITIS. [s. 452]