Anosmia and Chronic Sinus Disease

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Abstract
Chronic sinus disease associated with progressive mucosal disease is often a cause for anosmia. Despite aggressive allergic, medical, and surgical intervention, long-term relief of anosmia has been difficult to document. Fifty patients sought treatment for subjective anosmia and symptoms of progressive sinusitis and underwent endoscopic sinus surgery. After surgery 52% maintained significant improvement in smell by subjective measures that correlated with objective olfactory University of Pennsylvania Small Identification test (‘UPSIT’) results. Of the remaining patients, some had intermittent improvement, but most remained hyposmic or anosmic despite clinically well-healed ethmoid surgical beds. Of the preoperative and postoperative historical, clinical, and radiological data analyzed, severity of the presenting sinus disease (defined as stage II in the Kennedy staging criteria or disease extending beyond the ethmoids on preoperative computed tomography scan) and persistent mucosal disease in the surgical bed are associated with persistent anosmia (p = 0.005).