The Role of Eustachian Tube Dysfunction in Recurrent Chronic Otitis Media: A Cross-Sectional Study of Anatomical and Functional Variations
Abstract
Background/Objectives: Recurrent chronic otitis media (rCOM) is a major cause of hearing impairment, often linked to Eustachian tube (ET) dysfunction. Anatomical abnormalities, such as ET narrowing and obstructions, and functional impairments, including poor pressure regulation, play significant roles in rCOM recurrence. This study aimed to (1) identify anatomical variations of the ET in patients with rCOM using high-resolution imaging; (2) evaluate ET functional status using tympanometry, tubomanometry, and ET function tests; and (3) assess the correlation between anatomical variations and functional impairments in predicting rCOM recurrence. Methods: A cross-sectional study was conducted on 212 patients with rCOM and 212 controls. High-resolution CT and MRI were used to assess ET anatomy, while functional status was evaluated using tympanometry, tubomanometry, and Valsalva maneuver tests. Statistical analyses, including t-tests, Pearson correlation, and Cox proportional hazards models, were applied to examine the relationship between anatomical and functional impairments and rCOM recurrence. Results: Significant anatomical differences were observed in the rCOM group, including ET narrowing (24.53% vs. 11.32%, p = 0.014) and curvature (32.08% vs. 14.15%, p < 0.001). Functional impairments were also more prominent in rCOM patients, with higher ET opening pressure (120.56 ± 14.34 dPa vs. 85.78 ± 12.98 dPa, p < 0.001) and lower Valsalva maneuver success rates (62.32% vs.…
How strong is the evidence?
Evidence Hub reads this as a cross-sectional. Its evidence level is 4 of 5 (Low · observational). Observational designs can show an association but not prove cause. Reported size: 212 participants or records.
Read the paper
Related studies
- Improving sleep quality leads to better mental health: A meta-analysis of randomised controlled trials
- Tocilizumab in patients with severe COVID-19: a retrospective cohort study
- A new aging measure captures morbidity and mortality risk across diverse subpopulations from NHANES IV: A cohort study
- Fruit, vegetable, and legume intake, and cardiovascular disease and deaths in 18 countries (PURE): a prospective cohort study
- Are noise and air pollution related to the incidence of dementia? A cohort study in London, England
- Long COVID symptoms and duration in SARS-CoV-2 positive children — a nationwide cohort study
Go deeper in Evidence Hub
Evidence Hub adds a study data sheet (design, sample size, evidence level, key numbers), an AI summary and a chat grounded in the paper's text.