The Journal of International
Advanced Otology
Original Article

Correlation of Preoperative Computerized Tomography Scoring System and the Surgical Encounters in Cochlear Implantation


Department of ENT, Kafrelsheikh University, Egypt


Department of ENT, Tanta University, Egypt


Department of Radiology, Tanta University, Egypt


Department of ENT, Al-Azhar University, Egypt

J Int Adv Otol 2021; 17: 200-206
DOI: 10.5152/iao.2021.9138
Read: 940 Downloads: 454 Published: 01 May 2021

OBJECTIVE: To propose a numerical radiological scoring system of the pre-operative high-resolution computed tomography scan aiming to predict the surgical difficulty during cochlear implantation.

METHODS: This was a retrospective study of 272 pediatric patients who underwent cochlear implantation in 3 tertiary referral centers from April 2017 to August 2019. The correlation was attempted between our proposed scoring system (consisting of 8 radiological features) and the intraoperative surgical difficulty both objectively and subjectively.

RESULTS: our proposed scoring system showed a statistically significant correlation with surgical difficulty and also the duration of surgery. Scoring 5 or more predicted the surgical difficulty with a sensitivity of 80.85% and a specificity of 92.13%. The absence of air cells around the facial recess was the most independent predictor of difficulty (P value = .002).

CONCLUSION: This proposed radiological scoring system is a simple reliable method to predict the difficulty which we may encounter during CI surgery. Scoring of 5 or more would predict intraoperative difficulty as opposed to less scoring which would predict a straightforward surgery.

Cite this article as: Elzayat S, Mandour M, Elfarargy H, Lotfy R, Soltan I, Mahrous A. Correlation of preoperative computerized tomography scoring system and the surgical encounters in cochlear implantation. J Int Adv Otol. 2021;17(3):200-206.

EISSN 2148-3817