Prevalence of facial canal dehiscence and of persistent stapedial artery in the human middle ear: A report of 1000 temporal bones

Moreano, Edwin H.; Paparella, Michael M.; Zelterman, Daniel; Goycoolea, Marcos V.

doi:10.1288/00005537-199403000-00012

Cited by 143 publications

(87 citation statements)

References 28 publications

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“…In cadaver and temporal bone studies, dehiscence rates of between 10 and 74 per cent have been reported. [16][17][18][19] Computed tomography detection of facial canal dehiscence has a sensitivity of 66-66.6 per cent and a specificity of 84-98 per cent. 20,21 Hence, it could be hypothesised that our second and third cases did actually have microdehiscences of the fallopian canal on the side of the development of their palsy, which were not obvious on their CT scans.…”

Section: Discussionmentioning

confidence: 99%

Facial paralysis during air travel: case series and literature review

et al. 2012

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Objective: We report three cases of recurrent, unilateral facial palsy associated with air travel.Method: The three cases are presented, along with a brief literature review concerning barotrauma and its association with air travel and facial palsy.Results: All three patients experienced unilateral facial paralysis during air travel, accompanied by additional symptoms which varied between cases. Symptoms resolved spontaneously in all cases. Two patients received ventilation tube insertion to prevent further recurrence. Computed tomography scanning revealed no bony defect in two patients, while the third exhibited dehiscence of the facial canal which may have contributed to the condition.Conclusion: Available evidence suggests that eustachian tube dysfunction can contribute to increased pressure within the middle ear, leading to neuropraxia of the facial nerve. Cases of facial paralysis associated with air travel are underreported. Since there is no evidence-based management protocol for this condition, further investigation of its pathology is encouraged in order to improve our understanding.

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Section: Discussionmentioning

confidence: 99%

Facial paralysis during air travel: case series and literature review

et al. 2012

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“…5 Moreano et al examined 1000 temporal bones and found unilateral dehiscence of facial canal in 56% and bilateral dehiscence in 76.3% of temporal bones. 6 Temporal bone specimen of newborns revealed much higher incidence of multiple dehiscence along the facial canal.…”

Section: Discussionmentioning

confidence: 97%

Anomalous Facial Nerve: An Unusual Cause of Obstruction of Middle Ear Ventilation

Das

Tuli

2015

Kathmandu Univ. Med. J.

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Numerous anomalies and variations of facial nerve anatomy leading to iatrogenic injury are described. However, there are no reports of facial nerve dehiscence near its second genu causing a hump and obstructing middle ear ventilation pathway, as found in our case.This particular anomaly of facial nerve is being reported to highlight its uniqueness and that a dehiscent facial nerve may be a rare but dangerous cause of obstruction of the attic ventilation. One has to be aware of this unusual anomaly to prevent inadvertent damage to the facial nerve while clearing aditus block in persistent otitis media. KEY WORDSFacial nerve, facial nerve anomaly, facial nerve dehiscence.

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“…Chemical cauterization of a posterior perforation renders the facial nerve at a high risk of burn from the dripping silver nitrate solution because the tympanic segment dehiscence can be present in up to 56% of ears [7,8] . In addition, the trickling of silver nitrate into the retrotympanum may lead to its absorption through the round window membrane into the inner ear causing its damage.…”

Section: Discussionmentioning

confidence: 99%