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Robot-Assisted Transcanal Endoscopic Ear Surgery for Congenital Cholesteatoma
Published on: December 15, 2023
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Bilateral Congenital Cholesteatoma
Chang Ho Lee1, Mi Kyung Kim, Hyoung-Mi Kim
1Department of Otorhinolaryngology-Head and Neck Surgery, CHA University College of Medicine, Seongnam, Republic of Korea.
Summary
Congenital cholesteatoma (CC) is rare, but bilateral cases require high suspicion and early exploration. Bilateral CC, though similar in demographics to unilateral, presents unique challenges in diagnosis and treatment, often requiring more reoperations.
Area of Science:
- Otolaryngology
- Pediatric Surgery
- Medical Genetics
Background:
- Congenital cholesteatoma (CC) is an extremely rare condition.
- Bilateral congenital cholesteatoma (BCC) is even rarer, with limited large-scale data.
- Understanding the characteristics and management of BCC is crucial for optimal patient outcomes.
Purpose of the Study:
- To present the first large case series of bilateral congenital cholesteatoma (BCC).
- To compare the clinical features and outcomes of BCC with unilateral CC.
- To evaluate surgical strategies and hearing outcomes in children with BCC.
Main Methods:
- Retrospective cohort study of 604 children with surgically confirmed CC.
- Comparison of demographic data, invasiveness, and location between bilateral and unilateral CC.
- Analysis of surgical techniques, including laser myringotomy and endaural laser-assisted surgery.
- Assessment of hearing outcomes and reoperation rates.
Main Results:
- The incidence of BCC was 3.6% per case (11/604 children).
- BCC did not differ from unilateral CC in demographics or overall invasiveness.
- However, advanced BCC showed higher invasiveness per child (45.4%) and a predilection for the anterior type (71.4%).
- Anterior BCC was associated with significant hearing loss (>20 dB HL).
- Reoperation rates were significantly higher for BCC (40%) compared to unilateral CC.
Conclusions:
- Bilateral congenital cholesteatoma necessitates a high index of suspicion, aided by temporal bone CT scans.
- Early bilateral exploration is essential for timely diagnosis and management.
- Surgical approaches should be tailored to CC location and stage, with a focus on preserving hearing and minimizing residual disease.
