Tsunoda A
Department of Otolaryngology, Tokyo Medical and Dental University, Tokyo, Japan.
J Laryngol Otol. 2000 Nov;114(11):867-9. doi: 10.1258/0022215001904194.
A 15-year-old female presented with sensorineural hearing loss related to a high jugular bulb. She noticed temporary worsening of her right hearing with mild dizziness when her neck was compressed whereas she noticed no change in her left hearing. An audiogram showed temporary worsening of low tone bone-conduction on such occasions. A large jugular bulb covering the right round window was observed through the perforation. Computed tomography (CT) revealed a large jugular bulb obliterating the round window niche. Deterioration of bone conduction during neck compression was thought to be caused by the protrusion of the jugular bulb into the inner ear via the round window. This case suggested the possibility of sensorineural hearing loss due to the jugular bulb. As in the present case, jugular bulb or vein-related ear disorders should be examined by neck compression.
一名15岁女性因高位颈静脉球出现感音神经性听力损失。她注意到当颈部受压时，右耳听力会暂时恶化并伴有轻度头晕，而左耳听力则无变化。听力图显示在这种情况下低音调骨传导会暂时恶化。通过穿孔观察到一个大的颈静脉球覆盖了右圆窗。计算机断层扫描（CT）显示一个大的颈静脉球使圆窗龛闭塞。颈部受压时骨传导恶化被认为是由于颈静脉球经圆窗突入内耳所致。该病例提示了颈静脉球导致感音神经性听力损失的可能性。与本病例一样，颈静脉球或静脉相关的耳部疾病应通过颈部压迫进行检查。
