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Extended Epitympanotomy for Facial Nerve Decompression as a Minimally Invasive Approach

Journal of Audiology & Otology 2019년 23권 4호 p.204 ~ 209
 ( Chao Janet Ren ) - Yale School of Medicine Department of Surgery

 ( Chang Ji-Won ) - Hallym University College of Medicine Department of Otorhinolaryngology-Head and Neck Surgery
 ( Lee Jun-Ho ) - Hallym University College of Medicine Department of Otorhinolaryngology-Head and Neck Surgery

Abstract


For a minimally invasive approach to access the facial nerve, we designed an extended epitympanotomy via a transmastoid approach that has proven useful in cases of traumatic facial nerve palsy and pre-cholesteatoma. To evaluate the surgical exposure through an extended epitympanotomy, six patients with traumatic facial nerve palsy were enrolled in this study. The same surgical technique was used in all patients. Patients were assessed and the degree of facial nerve paralysis was determined prior to surgery, 1-week post-operatively, and 6-months post-operatively using the House-Brackmann grading system. In all cases, surgical exposure was adequate. All patients with traumatic facial nerve palsy were male and the age range was 13 to 83 years. In all cases, the location of the facial nerve damage was limited to the area between the first and second genu. Symptoms of all the patients improved by 6 months post-operation (p=0.024). There were no complications in any of the patients. Extended epitympanotomy is useful for safe, rapid surgical exposure of the attic area, sparing the patient post-operative dimpling, skin incision complications, and lengthy exposure to anesthesia. We suggest that surgery for patients with facial nerve palsy secondary to trauma be performed using this described technique.

키워드

Middle ear; Mastoid; Middle ear ventilation; Minimally invasive surgical procedures
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