ENT Department, Università Cattolica del Sacro Cuore, Rome, Italy.
Otol Neurotol. 2010 Dec;31(9):1376-80. doi: 10.1097/MAO.0b013e3181cdd8e3.
Auditory testing is not routinely performed within 4 to 6 weeks after stapedotomy because hearing acuity is thought to be transiently depressed. The early postoperative effects of the 1-shot carbon dioxide (CO2) laser have never been reported. The purpose of this study is to present data for auditory thresholds measured within 2 days of laser stapedotomy and at the last follow-up.
The study was prospective and unblinded.
The study was conducted at the "A. Gemelli" University Hospital.
From January to December 2008, 58 subjects underwent "1-shot" CO2 laser stapedotomies for otosclerosis. Pure-tonal audiometric test was performed preoperatively 2 days after surgery and at least 1 month after surgery during the follow-up.
The closure of air-bone gap began in the early postoperative period and continued to improve through the late postoperative period. Bone-conduction hearing thresholds were stable even in the early postoperative follow-up and remained stable trough all the course of the study.
Our data, supported by the literature, suggest that 1-shot CO2 laser stapedotomy is an effective and safe procedure for the treatment of otosclerosis.
镫骨切开术后 4 至 6 周内通常不进行听觉测试，因为听力敏度被认为是短暂下降的。单次二氧化碳（CO2）激光的早期术后影响从未被报道过。本研究的目的是提供激光镫骨切开术后 2 天内和最后随访时测量的听阈数据。
前瞻性、非盲法研究。
研究在“Gemelli”大学医院进行。
2008 年 1 月至 12 月，58 例耳硬化症患者接受了“单次”CO2 激光镫骨切开术。术前、术后 2 天和术后至少 1 个月的随访期间进行纯音测听测试。
气骨导差的闭合在术后早期开始，并在术后晚期继续改善。骨导听力阈值在早期术后随访时保持稳定，在整个研究过程中保持稳定。
我们的数据以及文献支持表明，单次 CO2 激光镫骨切开术是治疗耳硬化症的一种有效且安全的方法。
