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Original Article
Fractional exhaled nitric oxide and forced expiratory flow between 25% and 75% of vital capacity in children with controlled asthma
Ji-Yong Yoon, Sung-Il Woo, Heon Kim, Yong-Han Sun, Youn-Soo Hahn
Clin Exp Pediatr. 2012;55(9):330-336.   Published online September 14, 2012
Purpose

Fractional exhaled nitric oxide (FeNO) and forced expiratory flow between 25% and 75% of vital capacity (FEF25-75) are not included in routine monitoring of asthma control. We observed changes in FeNO level and FEF25-75 after FeNO-based treatment with inhaled corticosteroid (ICS) in children with controlled asthma (CA).

Methods

We recruited 148 children with asthma (age, 8 to 16 years) who had maintained...