小児滲出性中耳炎に対する中耳内チューブ留置法の成績

RESULTS OF TYMPANOSTONIY TUBE FOR CHILDREN WITH SECRETORY OTITIS MEDIA

　I．はじめに

　近年，滲出性中耳炎は幼小児に急増し，私どもの臨床において，種々の治療に抵抗を示し，難治性の疾患の一つとして知られている。

　その一治療法として，1954年にArmstrong^9）は経鼓膜的ポリエチレン管挿入法を発表し，以来特に欧米において多くの臨床医により挿入管の材質，形状，その臨床効果について研究され，現在その有用性は広く認められている。

　This study was to evaluate the tympanostomy tube used for 56 children (87 ears) with chronic secretory otitis media which resisted to medical therapy. Children between the ages of 5 and 6 years were the majority of the total population.

　Air-bone gap and occlusion effects (BCP, Bone Conduction Pinea modified by Onchi) in addition to puretone hearing threshold were used as objective criteria to evaluate the efficacy of the tympan ostomy tube treatment.

　A battery of the audiological tests was administered prior to the treatment, and this was repeated twice, 1 to 7 days and I to 3 months, following the tube insertion.

　Hearing loss was extremely improved in almost of every ear having air conduction threshold of around 15 dB in the speech frequency range, and having the dramatic and sustained improvements of conductive function.