Preoperative Imaging in Otosclerosis: What Role?
Article Type: Review Article

Peixoto MC*, Caiado R, Moura JE, Bastos J

Department of Otorhinolaryngology, Centro Hospitalar e Universitário de Coimbra, EPE, Coimbra, Portugal.

Corresponding Author:

Dr. Peixoto MC

Department of Otorhinolaryngology

Centro Hospitalar e Universitário de Coimbra

EPE, Coimbra


Received: 2016-01-12 ; Accepted: 2016-02-22 ; Published: 2016-02-29
Citation: Peixoto MC, Caiado R, Moura JE, Bastos J (2016) Preoperative Imaging in Otosclerosis: What Role? Joto 2:10451.
Copyright: © 2016 Peixoto MC et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution and reproduction in any medium, provided the original author and source are credited.
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Objective: To evaluate the role of preoperative imaging in otosclerosis concerning its effective need for diagnosis and management or its role as a medical legal defender.

Data Sources: A review of English medical literature via Medline using the terms imaging, preoperative imaging, CT scan/computed tomography, MRI/magnetic resonance plus otosclerosis was performed.

Review Methods: Abstracts were reviewed independently by two authors and relevant articles were then evaluated. Exclusion criteria included non-English language, articles published prior to 1990, and editorials, comments, and letters. A list of questions related to otosclerosis/stapes surgery (concerning diagnosis and surgical difficulties) were asked for each article considered relevant.  

Results: 42 studies were included in the study, the majority of them related to computed tomography (CT). Sensitivity of CT scan in diagnosing otosclerosis varies widely between the studies, ranging from 46% to 100%. CT densitometry seems to correlate with audiological findings and work as a risk factor for complications. Few references address ossicles’ integrity, congenital anomalies, and facial nerve abnormalities. 

Conclusion: This systematic review indicates that imaging has a useful role in both the diagnosis and management of otosclerosis. This is supported predominantly by Level III/IV evidence and, as such, requires further investigation.

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