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顽固的中耳渗出仍然是儿童时期最常见的耳科疾病。尽管不断进行大量研究且文献报导有增无已,但其病因和疗法仍不明确。通常认为中耳腔的通气障碍对中耳渗出液的形成和积存有关,但咽鼓管功能与二者任何之一的联系都还远未能证实。很多研究试图指出咽鼓管的功能障碍是致病原因,但这种意图或由于从非生理学角度进行实验性研究而失败,或者是从以后疾病发展推论而来,两者都不能有力地说明其病因。但传统的观点仍然成立。通过健康居民调查证明儿童时期对中耳渗出有特殊倾向性,儿童在适应压力变化、保持中耳腔平衡能力方面比成人差。Plester和Cantekin等的研究指出,此乃由于幼年时期咽鼓管的解剖和生理功能失常所致。
Stubborn middle ear exudation is still the most common ear disease in childhood. Despite numerous ongoing studies and reports of an increase in the literature, the etiology and treatment remain unclear. It is generally believed that the obstruction of the middle ear cavity is associated with the formation and accumulation of middle ear exudate, but the eustachian tube function and either of the two are far from confirmed. Numerous studies have attempted to point out that eustachian tube dysfunction is the causative agent but that this inten- tion, either because of failure from experimental studies non-physiologically, or inferred from subsequent disease development, does not provide a powerful explanation Etiology. But the traditional view is still there. Surveys by healthy residents prove that childhood has a special tendency to exudate the middle ear. Children are inferior to adults in adapting to pressure changes and maintaining middle ear cavity balance ability. Studies by Plester and Cantekin et al. Show that this is due to the anatomical and physiological dysfunction of the eustachian tube in infancy.