Surgeon oriented preoperative radiologic evaluation in cochlear implantation - our experience with a proposed checklist
Int. arch. otorhinolaryngol. (Impr.)
; 23(2): 137-141, 2019. ilus, tab, graf
Article
in English
| LILACS
| ID: biblio-1010196
Responsible library:
BR66.1
ABSTRACT
Introduction:
Preoperative temporal bone imaging studies have been routinely performed prior to cochlear implantation. Radiologists need to report these examinations with special focus on the surgeon's expectations.Objectives:
To provide a basic structured format, in the form of a checklist, for reporting preoperative computed tomography (CT) and to its clinical impact on operative findings.Methods:
The preoperative temporal bone CT scans of 47 patients were analyzed and reported according to the proposed checklist. Intraoperative assessment of mastoidectomy, posterior tympanotomy and round window access was done by the surgeon in a blinded fashion and were correlated with the radiological findings to assess its significance.Results:
The proposed radiological checklist was reliable in assessing operative difficulty during cochlear implantation. Contracted mastoid and lower tegmen position were associated with a greater difficulty of the cortical mastoidectomy. Presence of an air cell around the facial nerve (FN) was predictive of easier facial recess access exposure. Facial nerve location and posterior external auditory canal (EAC) wall inclination were predictive of difficult round window (RW) accessibility.Conclusion:
Certain parameters on the preoperative temporal bone CT scan may be useful in predicting potential difficulties encountered during the key steps involved in cochlear implant surgery (AU)
Full text:
Available
Collection:
International databases
Database:
LILACS
Main subject:
Temporal Bone
/
Preoperative Care
/
Cochlear Implantation
Type of study:
Etiology study
/
Incidence study
/
Observational study
/
Prognostic study
/
Risk factors
Limits:
Adult
/
Child
/
Child, preschool
/
Infant
Language:
English
Journal:
Int. arch. otorhinolaryngol. (Impr.)
Journal subject:
Otolaryngology
Year:
2019
Document type:
Article
Affiliation country:
Egypt
Institution/Affiliation country:
Department of ORL-HNS, Kafrelsheikh University/EG
/
Department of ORL-HNS, Tanta University Faculty of Medicine/EG