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Mirko Tos, MD; Sven Holm-Jensen, MD; Christian Hjort Sørensen, MD; Christian Mogensen, MD

Arch Otolaryngol. 1982;108(1):4-10.

Abstract
• Five repetitive tympanometric screenings performed during one year in 288 randomized, otherwise healthy 4-year-old children showed that 50% of ears changed tympanogram type between each trial. The total frequency of secretory otitis was high; thus, 32% of all 576 ears had type B at least once and 73% had either type B or C₂, indicating a middle ear pressure of –200 mm H₂O or lower. At three trials during at least six months, 8% had type B and 24% either type B or C₂. spontaneous improvement of secretory otitis was high, and type B improved in 78% to 88% of ears, although in some ears the type again deteriorated. Severe changes of the tympanic membrane were found in 0.5% of ears, and it is therefore advised to postpone surgical treatment of secretory otitis for three to six months.

(Arch Otolaryngol 1982;108:4-10)

Author Affiliations
From the Ear, Nose, and Throat University Clinic, The Gentofte Hospital, Copenhagen.

Footnotes
Accepted for publication May 27, 1981.

Reprint requests to the Ear, Nose, and Throat University Clinic, The Gentofte Hospital, Copenhagen, Denmark (Dr Tos).

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