<p>Eustachian tube dysfunction (ETD) significantly influences the pathophysiology of chronic otitis media (COM), yet its association with the location of tympanic membrane (TM) perforations in the inactive mucosal subtype is poorly understood, prompting this investigation of correlations between ETF and perforation sites to enhance early diagnosis and surgical planning. A prospective observational study of 53 patients with inactive mucosal COM was conducted over 18 months, with otoendoscopy used to classify perforations by location and ETF assessed using dual methodology comprising Toynbee impedance audiometry (ventilatory function) and saccharin test (mucociliary clearance). Among 62 TM examined, 95.45% (21/22) of anterior perforations maintained normal ETF, while 100% (4/4) of posterosuperior perforations demonstrated ETD, subtotal perforations showed 48% normal ETF, and dual-test concordance was 86%. These findings demonstrate that posterior perforation location strongly correlates with underlying ETD, enabling immediate clinical suspicion during initial consultation and facilitating proactive ETD management before surgical intervention, potentially improving outcomes through targeted early interventions based on this anatomical-functional relationship. </p>

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Relationship Between Eustachian Tube Function and Location of the Perforation in Chronic Otitis Media

  • M Mohan Raj,
  • Ashwin Ashok Jaiswal,
  • Prachi Mene,
  • Neeta Sharma

摘要

Eustachian tube dysfunction (ETD) significantly influences the pathophysiology of chronic otitis media (COM), yet its association with the location of tympanic membrane (TM) perforations in the inactive mucosal subtype is poorly understood, prompting this investigation of correlations between ETF and perforation sites to enhance early diagnosis and surgical planning. A prospective observational study of 53 patients with inactive mucosal COM was conducted over 18 months, with otoendoscopy used to classify perforations by location and ETF assessed using dual methodology comprising Toynbee impedance audiometry (ventilatory function) and saccharin test (mucociliary clearance). Among 62 TM examined, 95.45% (21/22) of anterior perforations maintained normal ETF, while 100% (4/4) of posterosuperior perforations demonstrated ETD, subtotal perforations showed 48% normal ETF, and dual-test concordance was 86%. These findings demonstrate that posterior perforation location strongly correlates with underlying ETD, enabling immediate clinical suspicion during initial consultation and facilitating proactive ETD management before surgical intervention, potentially improving outcomes through targeted early interventions based on this anatomical-functional relationship.