Sheehy J L, Nelson R A, House H P
Am J Otol. 1979 Jul;1(1):22-6.
We reviewed the records of 498 primary stapedectomy cases in regard to duration of disease, age at surgery, oval window pathology, hearing results, dizziness, and tinnitus. Ninety percent of the cases in which a tissue graft had been used as an oval window covering obtained a postoperative hearing level within 10 dB of the preoperative bone conduction. Postoperative sensorineural hearing impairment occurred infrequently and was two to three times more common in cases in which Gelfoam had been used as an oval window covering as compared to tissue grafts. Postoperative dizziness of one degree or another persisted at four months in 2 percent of the cases and was a problem for the patient in two cases (0.4%). This dizziness was likewise more common in Gelfoam cases. We concluded that tissue grafts are a better covering for the oval window than Gelfoam both in regard to hearing improvement and lack of postoperative complications.
我们回顾了498例原发性镫骨切除术病例的相关记录，内容包括疾病持续时间、手术年龄、卵圆窗病理情况、听力结果、头晕和耳鸣。90% 使用组织移植物覆盖卵圆窗的病例术后听力水平与术前骨导听力相差在10分贝以内。术后感音神经性听力损失发生率较低，与使用组织移植物相比，使用明胶海绵覆盖卵圆窗的病例中该情况的发生率要高出两到三倍。2% 的病例在术后四个月仍存在不同程度的头晕，有两例患者（0.4%）受此困扰。这种头晕在使用明胶海绵的病例中同样更为常见。我们得出结论，就听力改善和术后无并发症而言，组织移植物是比明胶海绵更好的卵圆窗覆盖物。
