Association of Residual Low-frequency Hearing Loss in Children and Type of Ventilation Tube Placed During Myringotomy With Tympanostomy Tube Placement

Abstract

Objective: Assess whether titanium Tytan tympanostomy tubes result in a larger air-bone gap (ABG) at lower frequencies compared to Armstrong and Paparella tubes. Study Design: Retrospective cohort study. Setting: Pediatric otolaryngology department of a 1000-bed academic center. Patients: A cohort of 110 children, aged 4–16 years, who had no sensorineural hearing loss or congenital syndromes and underwent tympanostomy tube placement between August 2018 and February 2021. Interventions: Tympanostomy procedures using Tytan, Armstrong, or Paparella tubes. Main Outcome Measure: Evaluation of pure tone average (PTA) and ABG at frequencies of 500 and 250 Hz. Results: Tytan tubes enhanced PTA and ABGs across studied frequencies. Nonetheless, post-Tytan tube placement exhibited significantly worse PTA and 500 Hz ABG compared to Armstrong and Paparella tubes (P < 0.05; P < 0.0001). Additionally, 250 Hz ABG post-Tytan was inferior to post-Armstrong (P < 0.0001). Relative risks of persistent ABG ≥ 15 dB with Tytan versus Armstrong tubes were 2.36 (1.62–3.44) at 500 Hz and 1.49 (1.09–1.99) at 250 Hz. Against Paparella tubes, these were 2.11 (1.28–3.72) at 500 Hz and 1.12 (0.81–1.67) at 250 Hz, the latter being not significant. Conclusion: While Tytan tubes optimize PTA, they are linked to enduring ABG ≥ 15 dB at lower frequencies. Notably, they perform less favorably in terms of 500 Hz PTA and ABG compared to both Armstrong and Paparella and demonstrate poorer 250 Hz ABG when juxtaposed with Armstrong tubes.