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Chronic rhinosinusitis possibly associated with decreased lung function in chronic cough patients.

OBJECTIVES: The purpose of this study is to investigate the lung function in Chronic Rhinosinusitis (CRS) patients with Chronic Cough (CC).

METHODS: A total of 1413 CC patients were retrospectively screened and 109 CRS patients with CC were enrolled. Lung function, Lund-Mackay Computed Tomography (CT) score, smoking status, peripheral blood eosinophil count, and immunoglobulin E concentration in serum samples, and Sino-Nasal Outcome Test were examined. Normal control subjects are also recruited.

RESULTS: The Forced Expiratory Volume in 1 second (FEV1.0 ), Percent Predicted FEV1.0 , and FEV1.0 /Forced Vital Capacity (FVC) ratio in the patients were significantly low as compared with the control subjects. The FEV1.0 /FVC ratio was negatively correlated with the Lund-Mackay CT scores of the patients with a high CT score.

CONCLUSIONS: The CRS patients with CC should be investigated with lung function. In addition, the multidisciplinary evaluation including a pulmonologist is needed to manage the CRS patients with CC.

LEVEL OF EVIDENCE: Level 4.

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