Haugeto O K, Elverland H H, Schrøder K E, Mair I W
Acta Otolaryngol Suppl. 1979;360:192-4. doi: 10.3109/00016487809123514.
212 of 242 patients (88%) treated for chronic secretory otitis media in 1972 were re-examined 5 years later. A total of 668 otological procedures has been performed, 99 patients being treated only once, while one patient received 12 procedures. The pure tone threshold was 20 dB or less in 88% of the ears in 1977, whilst only 57% had a type A tympanogram. Normal otoscopy was found in 40.5% of the ears, persisting secretory otitis in 11%, atelectasis in 2.8% and chronic suppurative otitis in 2.6%; the remaining 42.9% showed varying degrees of scarring and myringosclerosis.
1972年接受慢性分泌性中耳炎治疗的242例患者中有212例（88%）在5年后接受了复查。总共进行了668例耳科手术，99例患者仅接受过一次治疗，而有1例患者接受了12次手术。1977年，88%的耳纯音阈值为20分贝或更低，而只有57%的耳有A型鼓室图。40.5%的耳耳镜检查正常，11%持续存在分泌性中耳炎，2.8%为肺不张，2.6%为慢性化脓性中耳炎；其余42.9%表现出不同程度的瘢痕形成和鼓膜硬化。
