Gopalan P, Kumar M, Gupta D, Phillipps J J
Department of Otolaryngology, Singleton Hospital, Swansea, UK.
J Laryngol Otol. 2005 Mar;119(3):189-92. doi: 10.1258/0022215053561657.
This is a prospective study that looks into the prevalence of chorda tympani nerve (CTN) injury and related symptoms following varying degrees of trauma to the nerve during three common types of middle-ear operation: myringoplasty, tympanotomy and mastoidectomy. The number of patients with CTN-related symptoms varied widely between the three groups. Increased occurrence of the nerve related symptoms and a prolonged recovery time were observed in the tympanotomy group. Stretching of the nerve produced more symptomatic cases than cutting it in the myringoplasty and mastoidectomy groups. Recovery was complete in 92 percent of the symptomatic patients by 12 months. It is important to inform patients about the possibility of CTN injury during middle-ear operations, and it should also be emphasized that symptoms related to CTN injury can occur irrespective of the type of damage to the nerve.
这是一项前瞻性研究，旨在调查在三种常见的中耳手术（鼓膜成形术、鼓室切开术和乳突切除术）中，不同程度的鼓索神经（CTN）损伤后该神经损伤及相关症状的发生率。三组中出现CTN相关症状的患者数量差异很大。鼓室切开术组中神经相关症状的发生率增加，恢复时间延长。在鼓膜成形术和乳突切除术组中，神经拉伸比切断产生更多有症状的病例。到12个月时，92%有症状的患者恢复完全。告知患者中耳手术期间CTN损伤的可能性很重要，还应强调与CTN损伤相关的症状无论神经损伤类型如何都可能出现。
