Leth N, Tos M
ORL J Otorhinolaryngol Relat Spec. 1977;39(5):274-84.
The investigation includes 43 children (82 ears) with acute otitis media who were treated with paracentesis and antibiotics. The middle ear pressure was measured 7 days, 14 days, 1 month, and 2 months after the otitis. A follow-up examination was performed 4-12 months after the otitis. The normalization process was extremely slow: 3 months after the otitis only 37% of the ears had a pressure between 0 and -50 mm H2O, and 24% had flat curves and chronic secretory otitis. 3-12 months after, 49% of the ears had a normal pressure. A discussion on whether the middle ear ventilation had been reduced before the present otitis, or whether the slow normalization process is due to the changes in the mucous membrane is presented. The first assumption seems to be more probable. The significance of poor ventilation in the occurrence of recurrency is emphasized. Tympanometry is recommended 1-3 months after otitis, especially in recurrent otitis media.
该研究纳入了43例接受穿刺抽液和抗生素治疗的急性中耳炎患儿（82耳）。在中耳炎发病后7天、14天、1个月和2个月测量中耳压力。在中耳炎发病后4 - 12个月进行随访检查。中耳压力恢复正常的过程极其缓慢：中耳炎发病3个月后，仅有37%的耳朵压力在0至 - 50 mm H₂O之间，24%的耳朵呈平坦曲线且患有慢性分泌性中耳炎。3至12个月后，49%的耳朵压力恢复正常。文中讨论了本次中耳炎发作前中耳通气是否已经降低，或者恢复正常过程缓慢是否归因于黏膜变化。第一种假设似乎更有可能。强调了通气不良在复发发生中的重要性。建议在中耳炎发病后1 - 3个月进行鼓室图检查，尤其是复发性中耳炎。
