Systematic facial nerve monitoring in middle ear and mastoid surgeries: “Surgical dehiscence” and “electrical dehiscence”

Choung, Yun‐Hoon; Park, Keehyun; Cho, Min Jung; Choung, Pill‐Hoon; Shin, You Ree; Kahng, Hison

doi:10.1016/j.otohns.2006.04.008

Cited by 25 publications

(10 citation statements)

References 18 publications

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“…We can argue that the 2 dehiscences found in Group 2 could be related to the technical limitation of the radiologic study or spontaneous dehiscence of the FC described in many articles (20Y23). This is consistent with the findings of Choung et al (24); they recommended the value of 0.7 mA for the first screening of ''electrical dehiscence,'' and they concluded that this parameter is safer than surgical dehiscence. Silverstein et al (25) also found that the value of 1 mA stimulation corresponded approximately at 1 mm of the remaining bone over the FN.…”

Section: Discussionsupporting

confidence: 90%

Continuous Facial Nerve Stimulating Burr for Otologic Surgeries

Bernardeschi

Meskine²,

Otaibi³

et al. 2011

Otology &Amp; Neurotology

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Section: Discussionsupporting

confidence: 90%

Continuous Facial Nerve Stimulating Burr for Otologic Surgeries

Bernardeschi

Meskine²,

Otaibi³

et al. 2011

Otology &Amp; Neurotology

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“…However, dehiscence at the vestibular surface of the facial canal is usually out of the surgeon's point of view and may be open to an accidental injury. Choung et al have demonstrated that surgical dehiscence of the facial canal presented in 43% of cases while 73% of those responded to electrical stimulation which indicated an increased vulnerability to trauma and termed this condition as “electrical dehiscence” [21]. Routine monitorization of the facial nerve during surgery of chronic otitis media has been found to be effective and necessary [16, 21].…”

Section: Discussionmentioning

confidence: 99%

The Dehiscent Facial Nerve Canal

Yetışer

2012

International Journal of Otolaryngology

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Accidental injury to the facial nerve where the bony canal defects are present may result with facial nerve dysfunction during otological surgery. Therefore, it is critical to know the incidence and the type of facial nerve dehiscences in the presence of normal development of the facial canal. The aim of this study is to review the site and the type of such bony defects in 144 patients operated for facial paralysis, myringoplasty, stapedotomy, middle ear exploration for sudden hearing loss, and so forth, other than chronic suppurative otitis media with or without cholesteatoma, middle ear tumors, and anomaly. Correlation of intraoperative findings with preoperative computerized tomography was also analyzed in 35 patients. Conclusively, one out of every 10 surgical cases may have dehiscence of the facial canal which has to be always borne in mind during surgical manipulation of the middle ear. Computerized tomography has some limitations to evaluate the dehiscent facial canal due to high false negative and positive rates.

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“…More recently, Choung et al also evaluated surgical dehiscence versus electrical dehiscence in 100 patients, prospectively 4. In 43% of cases, surgical dehiscence was noted.…”

Section: Literature Reviewmentioning

confidence: 99%