Tarabichi Muaaz, Najmi Murtaza
Department of Otolaryngology, American Hospital Dubai, Dubai, United Arab Emirates.
Laryngoscope. 2015 Nov;125(11):2572-5. doi: 10.1002/lary.25330. Epub 2015 May 9.
Assess the patency of the proximal and distal segments of the Eustachian tube in patients undergoing surgery for chronic ear disease.
Case study with control group.
All consecutive patients presenting for surgery for chronic ear disease in our practice over 14 months underwent preoperative Valsalva computed tomography (CT), and an attempt was made intraoperatively using angled rigid scopes to evaluate obstruction of the protympanic segment of the Eustachian tube. Endoscopic examination of the same segment in 19 cadaver ears served as a control group.
Preoperative Valsalva CT showed patency of the distal one-third of the Eustachian tube in 51 of 53 ears. Intraoperative endoscopy allowed visualization of the protympanic opening of the Eustachian tube in 31 of 53 ears; 21 of 31 ears showed obstruction of the protympanic opening of the Eustachian tube.
A clear obstruction was more likely to be present in the protympanic opening of the Eustachian tube in the patient population undergoing surgery for chronic ear disease than in the cadaver control group, and was equally likely to be present in the distal cartilaginous tube in patients as in the control population.
评估慢性耳部疾病手术患者咽鼓管近端和远端的通畅情况。
有对照组的病例研究。
在14个月期间，我们诊所所有连续接受慢性耳部疾病手术的患者均接受了术前瓦尔萨尔瓦计算机断层扫描（CT），并在术中尝试使用成角硬性内镜评估咽鼓管鼓室段的阻塞情况。对19只尸体耳朵的同一节段进行内镜检查作为对照组。
术前瓦尔萨尔瓦CT显示，53只耳朵中有51只耳朵的咽鼓管远端三分之一通畅。术中内镜检查发现，53只耳朵中有31只耳朵的咽鼓管鼓室口可见；31只耳朵中有21只耳朵的咽鼓管鼓室口存在阻塞。
与尸体对照组相比，接受慢性耳部疾病手术的患者人群中，咽鼓管鼓室口更有可能出现明显阻塞，并且患者远端软骨段出现阻塞的可能性与对照组相同。
4级。
