Related Experiment Video
Updated: Nov 10, 2025
Robot-Assisted Transcanal Endoscopic Ear Surgery for Congenital Cholesteatoma
Published on: December 15, 2023
Middle ear risk index (MERI) as a prognostic factor for tympanoplasty success in children
de la Torre Carlos1, Vasquez Carolina1, Villamor Perla2
1Department of Pediatric Otolaryngology. Hospital Infantil de México, Federico Gómez, Mexico City, Mexico.
Insights
The Middle Ear Risk Index (MERI) score can predict the success of pediatric tympanoplasty. Mild MERI indicates better outcomes, while severe MERI is a risk factor for surgical failure in children.
Area of Science:
- Otolaryngology
- Pediatric Surgery
- Medical Informatics
Background:
- Tympanoplasty in children has historically faced challenges due to unclear prognostic factors for surgical success.
- Identifying reliable predictors is crucial for optimizing surgical outcomes in pediatric patients.
Purpose of the Study:
- To investigate the impact of the Middle Ear Risk Index (MERI) score on the success rates of tympanoplasty in pediatric patients.
- To determine if presurgical MERI can guide treatment decisions and patient selection for tympanoplasty.
Main Methods:
- Retrospective case-control study involving pediatric patients (<18 years) with tympanic membrane perforation.
- Analysis of surgical and clinical records from a tertiary pediatric referral center (January 2012 - March 2018).
- Evaluation of the Middle Ear Risk Index (MERI) as a prognostic factor for tympanoplasty success.
Main Results:
- A mild presurgical Middle Ear Risk Index (MERI) score was identified as a protective factor against surgical failure (Odds Ratio: 0.24, p=0.002).
- A severe MERI score was significantly associated with unsuccessful tympanoplasty, acting as a risk factor (Odds Ratio: 5.87, p=0.003).
Conclusions:
- The presurgical Middle Ear Risk Index (MERI) score is a valuable tool for predicting tympanoplasty outcomes in children.
- MERI scores can inform decisions regarding surgical candidacy, the need for aggressive interventions, or prior medical management.
- Informing families about potential tympanoplasty failure based on high MERI scores is recommended.
Abstract:
Tympanoplasty performed in childhood has been controversial over the years because there is no clarity in determining what prognostic factors lead to surgical success. The objective of this study was to evaluate the effect of the Middle Ear Risk Index (MERI) score on the success of pediatric tympanoplasty. A retrospective case-control study was performed at a tertiary pediatric referral center. A database was created with surgical and clinical records of pediatric patients (<18 years of age) with tympanic membrane perforation, assessed and surgically managed by the same surgical team from January 2012 through March 2018. Mild MERI before tympanoplasty was found to be a protective factor against surgical failure, with an odds ratio of 0.24 (p: 0.002). The odds ratio for severe MERI in unsuccessful tympanoplasty was 5.87, with a p: 0.003, standing out as a risk factor for surgical failure. Presurgical MERI in children may be a useful tool to determine if patients are candidates for tympanoplasty, more aggressive interventions, or if medical treatment before tympanoplasty is necessary to improve prognosis. When facing a high MERI score, parents and family should be advised before surgery about the possibility of tympanoplasty failure.
