Delayed Facial Nerve Palsy after Endolymphatic Sac Surgery

作者：Kamakura Takefumi^*; Kitahara Tadashi; Horii Arata; Inohara Hidenori

来源：Journal of International Advanced Otology, 2011, 7(1): 130-133.

Objective: Delayed facial nerve palsy (DFP) after otological and neurotological surgeries is always observed ipsilateral to the operated side, while it is rare in other types of ENT surgery including head and neck, suggesting that DFP may result from procedures selective to temporal bone surgery. Herein, we present a rare case of DFP after endolymphatic sac surgery, and review the pathogenesis and prevention of DFP after otological and neurotological surgeries.
Materials and Methods: The incidence of DFP after endolymphatic sac surgery from 1998 to 2008 at our hospital was 0.67% (1 out of 150 cases). A 44-year-old male with complaints of repeated vertigo attacks and cochlear symptoms such as persistent tinnitus and fluctuating hearing loss of the right ear. The patient received endolymphatic sac surgery on the right ear for treatment of intractable Meniere's disease, resulting in the onset of DFP.
Results: DFP onset occurred at post-operative day 8, with the House-Brackmann grade III. HSV and VZV serum tests were negative.
Conclusion: The later onset DFP observed in the present case after endolymphatic sac surgery might relate to the reactivation of a virus other than HSV and VZV in the geniculate ganglion induced by surgery.

• 出版日期2011