ArticleLaryngoscope investigative otolaryngology2026
Sinonasal Inflammatory Burden on Computed Tomography in Adults With Obstructive Eustachian Tube Dysfunction: A Case-Control Study.
Article in Laryngoscope investigative otolaryngology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction: Chronic rhinosinusitis (CRS) and Eustachian tube dysfunction (ETD) frequently coexist, yet objective data quantifying their relationship remain scarce. Because both conditions can reflect shared mucosal inflammation, we investigated whether adults with objectively verified ETD harbor a larger paranasal sinus inflammatory burden on computed tomography (CT) than controls, and whether this burden varies by drainage pathway or ear laterality. Methods: This single-center, retrospective CT case-control study compared 140 adults who underwent balloon tuboplasty for obstructive ETD (January 2017-April 2025) with 312 vestibular schwannoma controls without inflammatory middle-ear disease. Sinonasal opacification was graded using the Lund-Mackay (LM) scoring system with an LM score ≥ 5 used as a CRS-related radiologic threshold. Anterior and posterior compartment scores were analyzed separately. Ear-level analysis distinguished ipsilateral and contralateral sinonasal cavities. Group differences were assessed using the Mann-Whitney Results: The total LM score was more than twice as high in the obstructive ETD group as in controls (1.77 ± 2.94 vs. 0.80 ± 1.51; Conclusions: Adults evaluated for obstructive ETD had a higher bilateral sinonasal inflammatory burden on CT than controls, involving both anterior and posterior drainage pathways. These findings support awareness of coexisting sinonasal inflammation in obstructive ETD and warrant prospective studies on integrated sinonasal and otologic management. Level of Evidence: 3.
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