DIFFERENCES IN FRACTION OF EXHALED NITRIC OXIDE VALUES MEASURED BY TWO HAND-HELDED ANALYZERS (NObreath(®) AND NIOX Vero(®))

Arerugī = [Allergy]
Takahiro TsuburaiMasami Taniguchi

Abstract

The fraction of exhaled nitric oxide (FENO) is a useful marker of asthma control. The FENO measurement with two hand-helded analyzers (NObreath(®) and NIOX Vero(®)) may be more affordable, no studies have examined the differences in FENO values measured with those methods in adult. The study population comprised 44 subjects at our outpatient clinic. FeNO values (FENOb and FENOv) were measured by two methods (NObreath(®) and NIOX Vero(®)). FENOb values were significantly correlated with FENOv (r = 0.911, p < 0.001). However, FENOv values were high compared with FENOb (FENOv = 1.40 × FENOb). Differences exist in the values of FENO measured by two hand-helded analyzers: conversion equations are needed to compare the FENO values between these methods.

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