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  1. Aug 8, 2023 · Sinusitis is inflammation of the sinus or nasal passage. Chronic sinusitis is chronic inflammation of the sinus or nasal passages occurring for more than 12 weeks at a time. Recurrent sinusitis is defined as greater than four episodes of sinusitis within a one-year period. The evaluation and management of acute and chronic sinusitis are similar. Chronic sinusitis may present as (1) chronic ...

  2. This updated and expanded edition is divided into sections addressing, separately, the pathogenesis, clinical presentation, medical and surgical management of acute and chronic rhinosinusitis. Special entities such as autoimmune-related sinusitis, allergy and sinusitis, and aspirin-exacerbated respiratory disease are discussed in separate chapters.

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  4. Apr 1, 2015 · Sinusitis affects about 1 in 8 adults in the United States, resulting in over 30 million annual diagnoses. 3,4 The direct cost of managing acute and chronic sinusitis exceeds $11 billion per year, 4,5 with additional expense from lost productivity, reduced job effectiveness, and impaired quality of life. 6-8 More than 1 in 5 antibiotics ...

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