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  • Title: Effect of middle ear infection upon the pneumatization of the mastoid: an experimental study in pigs.
    Author: Aoki K, Esaki S, Honda Y.
    Journal: Laryngoscope; 1986 Apr; 96(4):430-7. PubMed ID: 3959703.
    Abstract:
    The suppression of the temporal bone's pneumatized cavities is commonly observed in chronic middle ear inflammatory disease, but this fact has not been explained in respect to its etiology, i.e., whether the poorly pneumatized cavity induces chronic middle ear infection or middle ear inflammatory condition suppresses the pneumatization of cellulae. We studied the effect of middle ear infection and eustachian tubal dysfunction in the early stage of life upon the development of pneumatization of the mastoid using 13 pigs, whose mastoid is comparable to that of man. We used two methods, the eustachian tube stenosis test and the tympanic membrane paraffin infusion test. The present study indicated that in six pigs infection of the middle ear in the early stage of life suppressed the normal development of pneumatization of the mastoid bone in pigs.
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