Abstract:Background No established biomarkers are available to guide the treatment of chronic interstitial lung diseases (ILDs). Nitric oxide reflects the inflammation in the airway, and fractional exhaled nitric oxide (FeNO) is a non-invasive and reproducible biomarker in lung-disease diagnosis and treatment. Whether FeNO can help manage ILDs remains uncertain. This study aimed to determine the role of FeNO in ILDs and the association between FeNO and ILD subtype. Methods 53 patients with ILDs were retrospectively rec… Show more
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