Department of Sensory Organs, Sapienza University of Rome, Rome, Italy.
Am J Otolaryngol. 2013 Nov-Dec;34(6):759-61. doi: 10.1016/j.amjoto.2013.06.002. Epub 2013 Aug 12.
The aim of this study is to present a patient who developed a pneumolabyrinth following intratympanic steroid injection performed one year after stapes surgery. The patient started a medical treatment but since no improvement of his symptoms occurred, 10 days after the intratympanic injection a surgical treatment was proposed. An exploratory tympanotomy showed a displacement of the stapes prosthesis from the platinotomy, a dislocation of the incus long process, a fracture of the footplate and a depression into the vestibule. The fragment of the broken footplate was removed, a new prosthesis was located. Nausea, vertigo and nystagmus resolved immediately following surgery with a hearing threshold unchanged. In the present case report, the pathogenesis of pneumolabyrinth may be connected to an IT steroid injection proposed to the patient for the onset of sudden sensorineural hearing loss. To our knowledge, no case of a pneumolabyrinth provoked by intratympanic steroid injection has been previously described.
本研究旨在介绍一位患者，他在镫骨手术后一年接受鼓室内类固醇注射后出现气压性迷路。患者开始接受药物治疗，但由于症状没有改善，在鼓室内注射后 10 天，提出了手术治疗。探查性鼓室切开术显示镫骨假体从镫骨切开术移位，砧骨长突脱位，镫骨板骨折和凹陷进入前庭。移除了破碎的镫骨板碎片，重新定位了一个新的假体。手术后，恶心、眩晕和眼球震颤立即得到缓解，听力阈值没有改变。在本病例报告中，气压性迷路的发病机制可能与患者因突发性感觉神经性听力损失而接受的 IT 类固醇注射有关。据我们所知，以前没有报道过因鼓室内类固醇注射引起的气压性迷路。
