Acute Bronchiolitis
Conditions
Keywords
Bronchiolitis, FeNO, Asthma, wheezing, RSV
Brief summary
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.
Interventions
None listed
Sponsors
Tel-Aviv Sourasky Medical Center
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
2 Weeks to 2 Years
Healthy volunteers
Yes
Inclusion criteria
* First episode of shortness of breath * Children in ages 2 weeks to 2 years
Exclusion criteria
* Any chronic disease * Congenital anomalies
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Physician diagnosed asthma | At the age of 4 years | Modification of The International Study of Asthma and Allergies in Childhood (ISAAC) questionnaires |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Fractional exhaled Nitric Oxide (FENO) level | During acute bronchiolitis, after 2 and 6 months | FeNO level measured by a rapid-response chemiluminescence analyzer (Eco Physics CLD88 NO analyzer, EcoMedics AG,Switzerland). |
Other
| Measure | Time frame | Description |
|---|---|---|
| Wheezing episode | From recruitment time till the age 4. | — |
| PCR for respiratory viruses | At recruitment | Polymerase chain reaction (PCR) analysis of nasal secretion for: RSV, Influenza A, Influenza B, Pandemic H1N1, Adenovirus, human metapneumovirus (hMPV), Parainfluenza 1-3, Enterovirus, Bocavirus, Rhinovirus, Corona virus-229E, Corona-OC43, Corona-HKU1 and Corona-NL63. |
Countries
Israel
Contacts
Primary ContactYakov Sivan, Professor
Outcome results
None listed