迷路瘘管患者骨导听力水平的长期恶化
Long-term deterioration of bone-conduction hearing level in patients with labyrinthine fistula.
作者信息
Katsura Hirokazu, Mishiro Yasuo, Adachi Osamu, Ogino Koichi, Daimon Tadashi, Sakagami Masafumi
机构信息
Department of Otolaryngology, Hyogo College of Medicine, Nishinomiya-City, Hyogo, Japan.
Department of Otolaryngology, Hyogo College of Medicine, Nishinomiya-City, Hyogo, Japan.
出版信息
Auris Nasus Larynx. 2014 Feb;41(1):6-9. doi: 10.1016/j.anl.2013.03.001. Epub 2013 May 25.
OBJECTIVE
Although many reports describe the short-term hearing outcomes of surgically managed labyrinthine fistulae, the long-term results remain unknown. We reviewed the long-term postoperative hearing outcomes of 14 ears of patients with cholesteatoma and labyrinthine fistulae.
METHODS
Between 1996 and 2010, 84 patients with cholesteatoma and labyrinthine fistula underwent tympanoplasty at Hyogo College of Medicine Hospital. Fistulae were located in the lateral semicircular canal in all patients and in the superior semicircular canal in one. Fourteen patients were followed up for more than 5 years.
RESULTS
The postoperative air-bone gap was ≤10dB in one patient, between 11 and 20dB in seven, between 21 and 30dB in four, and ≥31dB in two. Mean bone-conduction hearing levels on the operated side had deteriorated by 3, -1 and -2dB at 1, 2 and 4kHz, respectively at 1 year postoperatively, and by 8, 6 and 2dB at 1, 2 and 4kHz, at 5 years postoperatively. Bone-conduction hearing levels at 1 and 2kHz were significantly deteriorated at 5 years postoperatively, compared with baseline and 1 year (P<0.05).
目的
尽管许多报告描述了手术治疗迷路瘘管的短期听力结果，但长期结果仍不清楚。我们回顾了14例胆脂瘤合并迷路瘘管患者术后的长期听力结果。
方法
1996年至2010年间，84例胆脂瘤合并迷路瘘管患者在兵库医科大学医院接受了鼓室成形术。所有患者的瘘管均位于外半规管，1例位于上半规管。14例患者接受了超过5年的随访。
结果
术后气骨导差≤10dB的患者有1例，11至20dB的有7例，21至30dB的有4例，≥31dB的有2例。术后1年，患侧1、2和4kHz处的平均骨导听力水平分别下降了3dB、1dB和2dB；术后5年，1、2和4kHz处分别下降了8dB、6dB和2dB。与基线和术后1年相比，术后5年1和2kHz处的骨导听力水平显著下降（P<0.05）。
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