Related Experiment Video
Updated: Aug 20, 2025
Electrically Evoked Stapedius Reflex Measurements in Cochlear Implantation and Its Application in the Postoperative Fitting Process
Published on: June 21, 2024
A modified form of the St Thomas' Hospital (STH) classification to improve cochlear implantation outcomes
Haytham Elafandi1, Mohamed Adel Khalifa1, Ahmed Elnaggar1
1Tanta University Faculty of Medicine, Tanta, Egypt.
Objectives:
re-evaluation and modification of the St Thomas' Hospital (STH) classification to improve cochlear implantation outcomes. STUDY DEIGN: a prospective cohort study.
Patients:
children (n = 20) between 2 to 8 years old who received a unilateral cochlear implant, all had difficult round window visibility and/or accessibility for electrode insertion. 10 had a round window insertion through the endoscopic assisted cochlear implantation and the remaining 10 had the same insertion using the retro-facial approach. THE SURGERY: two alternative techniques were used to overcome the difficult cases of round window electrode insertion: 1Endoscopic assisted cochlear implantation 2Transmastoid retro-facial approach RESULTS: both techniques proved to be effective and practical to overcome cases with difficult round window visibility and/or accessibility for electrode insertion.
Conclusion:
Round window insertion is associated with superior cochlear implantation outcomes, so we recommend a new modification to the STH classification to bypass the cochleostomy insertion.
