纯音平均听阈（PTA）作为砧骨侵蚀预测指标的相关性
Relevance of Pure Tone Average (PTA) as a Predictor for Incus Erosion.
作者信息
Mohanty Sanjeev, Gopinath M, Subramanian Mukundan, Vijayan Nisha
机构信息
Department of ENT, Sri Ramachandra University, Porur, Chennai, 600116 India.
出版信息
Indian J Otolaryngol Head Neck Surg. 2012 Dec;64(4):374-6. doi: 10.1007/s12070-011-0392-6. Epub 2011 Dec 7.
Abstract
Between 40 and 90% of tympanoplasty require middle ear ossicular chain reconstruction. Ossicular discontinuity usually cannot be determined unless an operation is performed. The main objective was to determine the predictive value of pre-operative audiological factors in diagnosing incudal necrosis in patients with tubotympanic chronic suppurative otitis media. A retrospective clinical study of 20 patients who underwent ossicular reconstruction with autologous incus over a period of two years was performed. The mean pre-operative pure tone average was 49.18 dB HL.The minimum value being 45 dB HL and the maximum value being 64 dB HL.
摘要
40%至90%的鼓室成形术需要进行中耳听骨链重建。除非进行手术，通常无法确定听骨连续性中断情况。主要目的是确定术前听力学因素对诊断咽鼓管鼓室型慢性化脓性中耳炎患者砧骨坏死的预测价值。对20例在两年内接受自体砧骨听骨重建的患者进行了一项回顾性临床研究。术前平均纯音听阈为49.18 dB HL，最小值为45 dB HL，最大值为64 dB HL。
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