Sato H, Nakamura H, Honjo I, Hayashi M
Department of Otolaryngology, Faculty of Medicine, Kyoto University, Japan.
Acta Otolaryngol Suppl. 1990;471:9-12. doi: 10.3109/00016489009124803.
Prognostic value of preoperative Eustachian tube function was examined in 77 ears subjected to type 1 tympanoplasty. Eustachian tube function was evaluated by positive and negative pressure equalization tests, and clearance test. Based on the results of these three tests, the ears were classified into four grades. The outcome of the ear surgery was judged by postoperative hearing, presence of otorrhea, atelectasis and perforation of the eardrum. Results of the positive pressure equalization and clearance tests of the tube were correlated with the outcome of ear surgery, although the negative pressure equalization test had no correlation with it. The percentage of unsuccessful outcomes increased with the grade of tubal dysfunction, indicating that tubal function is closely associated with the outcome of ear surgery. Thus, it was revealed that the preoperative tubal function test including positive pressure test and clearance test are useful for predicting the prognosis of ear surgery.
对77例行1型鼓室成形术的耳朵进行了术前咽鼓管功能的预后价值研究。通过正压和负压平衡试验以及清除试验评估咽鼓管功能。根据这三项试验的结果，将耳朵分为四个等级。通过术后听力、耳漏、鼓膜萎缩和穿孔情况判断耳部手术的结果。咽鼓管正压平衡试验和清除试验的结果与耳部手术结果相关，而负压平衡试验与之无关。手术失败结果的百分比随咽鼓管功能障碍等级的增加而升高，表明咽鼓管功能与耳部手术结果密切相关。因此，揭示了包括正压试验和清除试验在内的术前咽鼓管功能试验对预测耳部手术的预后是有用的。
