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Published on: March 8, 2022
Perilymph Gusher in Cochlear Implantation Surgery: An Algorithm for Management
Ahmed Abdelmoneim Teaima1, Lobna El Fiky1, Badr Eldin Mostafa1
1Otorhinolaryngology Department, Faculty of Medicine Ain Shams University Cairo Egypt.
Insights
A new algorithm effectively manages perilymph leaks during cochlear implantation (CI) surgery, reducing complications. This systematic approach ensures safer CI procedures and better patient outcomes.
Area of Science:
- Otolaryngology
- Neurosurgery
- Medical Device Technology
Background:
- Perilymph leak is a significant complication of cochlear implantation (CI).
- It can lead to surgical challenges and postoperative issues.
- Effective management strategies are crucial for patient safety.
Purpose of the Study:
- To develop and evaluate an algorithm for managing perilymph leaks during CI surgery.
- To improve surgical outcomes and reduce morbidities associated with CI.
Main Methods:
- Retrospective study of pediatric CI patients with perilymph leak (2017-2023).
- Analysis of clinical data, imaging, surgical details, and management outcomes.
- Application of a novel algorithm involving head elevation, hyperventilation, medications, and surgical techniques.
Main Results:
- 11.1% incidence of perilymph leak (114/1035 cases).
- Algorithm successfully managed all cases, including severe gushers.
- Only two cases had persistent leaks, managed conservatively without revision surgery.
Conclusions:
- A systematic algorithm is vital for predicting, diagnosing, and managing CI-related perilymph leaks.
- The proposed algorithm facilitates safer cochlear implantation with improved outcomes.
- Both non-surgical and surgical interventions are key components of effective leak management.
Objective:
Perilymph leak is considered a major complication of cochlear implantation (CI) surgery and can lead to surgical difficulties and postoperative morbidities. This study is aimed to formulate an algorithm for better management of perilymph leak in cases of CI.
Methods:
This is a retrospective study conducted in our tertiary institute on pediatric patients with perilymph leak during CI surgery from January 2017 to January 2023. Standard facial recess approach and round window cochleostomy were used in all cases. The clinical data, imaging, details of surgery, management of perilymph leak, and outcome were revised.
Results:
One hundred and fourteen cases of perilymph leak out of 1035 cases of CI surgery (11.1%) were collected. In 108 cases, an oozer was encountered, while in 6 cases a severe gusher occurred. Their ages ranged between 2 and 15 years, with 74 male patients. Our algorithm for control of the leak during surgery included elevation of the head, hyperventilation, mannitol, steroids, and wait until the flow of the gusher decreases. Widening of the cochleostomy, use of an electrode with cork, and muscle packing were also helpful in control of the leak. In severe cases, subtotal petrosectomy was adopted with fat obliteration. All cases were managed properly with our algorithm. Only two cases had persistent leak postoperatively and were managed conservatively without need for revision surgery nor lumbar drain.
Conclusion:
In CI surgery, proper prediction, diagnosis, and systematic management of perilymph leak including nonsurgical and surgical methods are crucial for better and safe outcomes.
Level Of Evidence:
Level III.
