Ojala K, Sorri M, Sipilä P, Vainio-Matila J
Arch Otorhinolaryngol. 1981;233(3):251-60. doi: 10.1007/BF00454389.
The long-term hearing results are presented for 135 ears operated on radically. In 59 of the ears temporary paraffin filling of the tympanic cavity was employed after the removal of the tympanic mucosa ot operation. The filling material was removed, and the ossiculoplasty was performed about 6 months later. In 76 ears a one-stage operation with tympanoplasty and Silastic sheeting was employed. There were no statistical differences between the groups of ears mentioned according to hearing results early (1 year) or late (5-15 years) postoperatively or in the deterioration of the air-bone gaps after the first postoperative year (P greater than 0.05). The late change in the air-bone gap was significant in both groups (paraffin group: 6.1 dB; Silastic sheeting group: 5.7 dB; P less than 0.05). The total improvement of hearing late after surgery (as compared to the preoperative hearing) was significantly better in the paraffin group than in ears with Silastic sheeting (P less than 0.05). Paraffinplasty seems to be a suitable way to avoid tympanic adhesions.
本文呈现了135例接受根治性手术的耳的长期听力结果。其中59耳在手术切除鼓室黏膜后采用了鼓室暂时性石蜡填充。约6个月后取出填充材料并进行听骨成形术。76耳采用了鼓室成形术联合硅橡胶片的一期手术。根据术后早期（1年）或晚期（5 - 15年）的听力结果，以及术后第一年之后气骨导差的恶化情况，上述两组耳之间无统计学差异（P＞0.05）。两组的气骨导差晚期变化均有统计学意义（石蜡组：6.1 dB；硅橡胶片组：5.7 dB；P＜0.05）。与术前听力相比，术后晚期听力的总体改善在石蜡组显著优于使用硅橡胶片的耳（P＜0.05）。石蜡成形术似乎是避免鼓膜粘连的一种合适方法。
