Young Y H, Hsieh T
Department of Otolaryngology, National Taiwan University Hospital, Taipei.
Eur Arch Otorhinolaryngol. 1992;249(4):206-8. doi: 10.1007/BF00178470.
Eustachian tube function tests were performed in 34 patients with nasopharyngeal carcinoma before and after irradiation. Tubal dysfunction prior to irradiation in these patients was due to functional impairment. However, tubal dysfunction after irradiation was due to both organic obstruction and functional impairment. Organic obstruction of the tube was found to be severe with higher dosages of irradiation (to 80 Gy) resulting in subsequent otitis media. In our experience, higher doses of irradiation should be avoided if possible, but insertion of a ventilation tube should be done if a high dose of irradiation is planned.
对34例鼻咽癌患者在放疗前后进行了咽鼓管功能测试。这些患者放疗前的咽鼓管功能障碍是由于功能受损。然而，放疗后的咽鼓管功能障碍是由于器质性阻塞和功能受损共同导致的。发现随着放疗剂量增加至80 Gy，咽鼓管的器质性阻塞会加重，进而导致中耳炎。根据我们的经验，应尽可能避免高剂量放疗，但如果计划进行高剂量放疗，则应插入通气管。
