The purpose of this study is to determine Fractional exhaled Nitric-Oxide (FeNO)levels and blood cytokines during acute bronchiolitis, and to seek for correlation between these markers and future development of asthma.
Study Type
OBSERVATIONAL
Enrollment
400
Sourasky Medical Center
Tel Aviv, Israel
RECRUITINGPhysician diagnosed asthma
Modification of The International Study of Asthma and Allergies in Childhood (ISAAC) questionnaires
Time frame: At the age of 4 years
Fractional exhaled Nitric Oxide (FENO) level
FeNO level measured by a rapid-response chemiluminescence analyzer (Eco Physics CLD88 NO analyzer, EcoMedics AG,Switzerland).
Time frame: During acute bronchiolitis, after 2 and 6 months
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