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Fractional exhaled nitric oxide measurement: Comparison between the Sunvou-CA2122 analyzer and the NIOX VERO analyzer
- Source :
- Journal of Asthma. 58:52-59
- Publication Year :
- 2019
- Publisher :
- Informa UK Limited, 2019.
-
Abstract
- Fractional exhaled nitric oxide (FeNO) has been developed as a useful marker for eosinophilic airway inflammation and is widely used in clinical practice due to its convenience and noninvasiveness. There are two NO analyzers commonly used in China: the Sunvou-CA2122 Analyzer (NOS) and the NIOX VERO Analyzer (NOV). However, the relationships between the two devices have not yet been reported. The aim of our study was to determine the correlation and differences in the FeNO levels measured by the two devices. FeNO levels were measured by both NOS and NOV in 107 adult patients with asthma. The asthma control test (ACT) score and lung function were also evaluated. This study was registered in the Chinese Clinical Trial Registry (http://www.chictr.org.cn). NOS yielded generally higher FeNO values than NOV [median (range): 87.0 (16 ∼ 276) vs 58.0 (9 ∼ 228); p rs = 0.878, p NOS and logFeNONOV (95% CI: –0.45 ∼ 0.14). The conversion equation was calculated as follows: logFeNONOS= 0.027 + 0.904× logFeNONOV. This was the first report to compare FeNO levels measured by NOS and NOV, showing a strongly positive correlation and a low degree of consistency between the two devices. Further prospective studies are required to verify our conclusions and determine the validity of the equation.
- Subjects :
- Adult
Male
Pulmonary and Respiratory Medicine
Spectrum analyzer
Nitric Oxide
Eosinophilic
medicine
Humans
Immunology and Allergy
Prospective Studies
Correlation of Data
Asthma
business.industry
Airway inflammation
Middle Aged
respiratory system
medicine.disease
respiratory tract diseases
Clinical Practice
Cross-Sectional Studies
Breath Tests
Pediatrics, Perinatology and Child Health
Immunology
Exhaled nitric oxide
Female
business
Subjects
Details
- ISSN :
- 15324303 and 02770903
- Volume :
- 58
- Database :
- OpenAIRE
- Journal :
- Journal of Asthma
- Accession number :
- edsair.doi.dedup.....c3a822da043e34e1ca04bb97a6c118b4