Delayed facial palsy after tympanomastoid surgery: A report of 15 cases.

Am J Otolaryngol

Department of Otolaryngology, Cangzhou Central Hospital, Cangzhou, Hebei Province, People's Republic of China. Electronic address:

Published: August 2016

AI Article Synopsis

  • This study analyzed 15 cases of delayed facial palsy (DFP) following tympanomastoid surgery out of 1,582 surgeries performed.
  • The findings indicated that 60% of those with DFP had fallopian canal dehiscence and facial nerve exposure, significantly higher than 20.6% in patients without DFP.
  • All patients with DFP recovered fully within two months, suggesting that while certain factors increase risk, the overall outcomes are very positive.

Article Abstract

Objective: To analyze potential etiology and outcomes of delayed facial palsy (DFP) after tympanomastoid surgery.

Methods: Fifteen cases of DFP out of 1582 cases after tympanomastoid surgery were reviewed, and the potential causes and outcomes were analyzed.

Results: 9 out of 15 patients (60%) had fallopian canal dehiscence and facial nerve exposure in contrast to 323 of 1567 patients (20.6%) without DFP, with significant difference (P<0.01). Chorda tympani was cut or overstretched in 4 cases. There were two cases with herpes labialis and IgM antibody against varicella-zoster virus. All patients fully recovered within two months.

Conclusion: Fallopian canal dehiscence and facial nerve exposure was a risk factor of DFP after tympanomastoid surgery, and chorda tympani injury and viral reactivation may be triggering factors of DFP. The outcomes DFP after tympanomastoid surgery were excellent.

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Source
http://dx.doi.org/10.1016/j.amjoto.2015.07.004DOI Listing

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