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An intact bony tympanic facial canal does not protect from secondary facial paresis in adult acute otitis media

Published online by Cambridge University Press:  19 May 2020

C Meerwein Open the ORCID record for C Meerwein [Opens in a new window] ,
S Pazahr ,
T M Stadler ,
N Nierobisch ,
A Dalbert ,
A Huber  and
C Röösli
C Meerwein*
Affiliation:
Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Zurich, University of Zurich, Switzerland
S Pazahr
Affiliation:
Department of Neuroradiology, University Hospital Zurich, University of Zurich, Switzerland
T M Stadler
Affiliation:
Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Zurich, University of Zurich, Switzerland
N Nierobisch
Affiliation:
Department of Neuroradiology, University Hospital Zurich, University of Zurich, Switzerland
A Dalbert
Affiliation:
Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Zurich, University of Zurich, Switzerland
A Huber
Affiliation:
Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Zurich, University of Zurich, Switzerland
C Röösli
Affiliation:
Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Zurich, University of Zurich, Switzerland
*
Author for correspondence: Dr Christian M Meerwein, Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Zurich, Frauenklinikstrasse 24, 8091Zurich, Switzerland E-mail: [email protected] Fax: + 41 44 255 45 56
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Abstract

Objective

To investigate the prevalence of bony dehiscence in the tympanic facial canal in patients with acute otitis media with facial paresis compared to those without facial paresis.

Method

A retrospective case–control study was conducted on acute otitis media patients with facial paresis undergoing high-resolution temporal bone computed tomography.

Results

Forty-eight patients were included (24 per group). Definitive determination of the presence of a bony dehiscence was possible in 44 out of 48 patients (91.7 per cent). Prevalence of bony dehiscence in acute otitis media patients with facial paresis was not different from that in acute otitis media patients without facial paresis (p = 0.21). Presence of a bony dehiscence was associated with a positive predictive value of 66.7 per cent in regard to development of facial paresis. However, an intact bony tympanic facial canal did not prevent facial paresis in 44.8 per cent of cases (95 per cent confidence interval = 34.6–55.6).

Conclusion

Prevalence of bony dehiscence in acute otitis media patients with facial paresis did not differ from that in acute otitis media patients without facial paresis. An intact tympanic bony facial canal does not protect from facial paresis development.

Keywords

Otitis MediaFacial ParalysisRetrospective StudiesComputed TomographyX-RayTemporal Bone
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 134 , Issue 5 , May 2020 , pp. 409 - 414
Copyright
Copyright © JLO (1984) Limited, 2020

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Footnotes

Dr C M Meerwein takes responsibility for the integrity of the content of the paper

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