Cochleostomy. Long term results.

Area of Science:

• Otolaryngology
• Neurosurgery
• Surgical Innovation

Background:

• Cochleostomy is a surgical procedure involving the cochlea.
• Traditional cochleostomy carries risks, including iatrogenic anacusis (hearing loss).
• A conservative approach is needed to mitigate surgical risks.

Purpose of the Study:

• To describe an original, conservative cochleostomy technique.
• To evaluate the long-term efficacy and safety of this novel surgical approach.
• To compare the outcomes with existing endolymphatic sac surgery.

Main Methods:

• The described technique involves creating an "ostomy" in the cochlear promontory bone.
• This procedure joins the spiral ligament and middle ear mucosa without opening the cochlea.
• A follow-up study of 178 cases with over 10 years post-surgery was conducted.

Main Results:

• The conservative cochleostomy technique demonstrated no risk of iatrogenic anacusis.
• Surgical outcomes were significantly better compared to endolymphatic sac surgery.
• Long-term follow-up confirmed the safety and effectiveness of the procedure.

Conclusions:

• The described cochleostomy technique represents a safe and conservative surgical option.
• This method offers superior results compared to endolymphatic sac surgery for cochlear procedures.
• The technique minimizes the risk of hearing loss while achieving positive surgical outcomes.