(0936) Functional and Anatomic Outcomes of Endoscopic Tympanoplasty

Introduction: Endoscopic tympanoplasty is a minimally invasive approach for repairing tympanic membrane perforations. This study aims to assess the effectiveness of this technique, focusing on anatomic as well as functional outcomes.

Methods: This was a single institution retrospective study including 199 subjects that underwent endoscopic tympanoplasty at Our Lady of the Lake Regional Medical Center from 2017 through 2023. Chart review was performed to determine both anatomic and functional outcomes of endoscopic tympanoplasty. Functional outcomes were measured by calculating the difference between preoperative and postoperative Pure Tone Averages (PTAs). Each patient underwent a preoperative audiogram and postoperative audiogram(s). Patients were further analyzed based on age, gender, and based on either size and/or location of the perforation. The study utilized paired t-tests for within-group comparisons, ANOVA for between-group comparisons, and Tukey’s HSD for post-hoc analysis.

Results: Anatomic outcomes showed a 193/199 (97%) healing success rate and a 3% revision rate. This study observed significant audiometric improvements postoperatively with an average improvement of 7.12 dB. In the pediatric group ( < 18 years old), there was an 8.41 dB mean improvement in the postoperative PTA. In the adult group (> 18 years old), there was a 6.20 dB mean improvement in the postoperative PTA. There was no statistically significant difference between age, gender, or perforation site.

Conclusions: Endoscopic tympanoplasty at our institution has proven effective in achieving high rates of tympanic membrane healing with significant auditory improvements, reflected in the decreased necessity for revision surgeries. The technique showed consistent effectiveness across various patient demographics, including age and gender, with no significant differences in outcomes based on these factors. This study supports the utility of endoscopic tympanoplasty as a reliable and versatile approach in otologic surgery, offering benefits in both anatomic restoration and functional auditory gains.