In recent years the understanding about the mechanism of development of wheezing in children has
improved and various management strategies were tried by different researchers. A search was made
in PubMed by putting search term ‘Recurrent Wheezing in Children Diagnosis and Management’ and
‘Recurrent Wheezing in Children’.
The respiratory syncytial virus induced bronchiolitis and rhinovirus infection in preschool children
may lead to recurrent wheezing in preschool children. In infant immune system is immature and
depends mainly on TLR ligation and maternal derived antibodies. Anti-inflammatory cytokines such
as IL-10 and TGF beta are more common. RSV NS1 and NS2 proteins target RLR and TLR 3
dependent signaling and suppress the cellular response to RSV replication .This can lead to Th2 like
response leading to asthma and allergy. CDHR3 acts as receptor in rhinovirus C infection. RV
infection causes increase in IL 25 and IL 33 both induce Th2 type of immunity by increasing IL5 and
IL 13
Daily Inhaled Corticosteroids (ICS) have been found useful in preventing exacerbations. Evidence is
inconclusive about intermittent inhaled corticosteroids, intermittent montelukast and daily
montelukast in recurrent wheezing. Azithromycin started early may decrease duration of wheezing
episode. About intravenous magnesium sulfate and hypertonic saline evidence is inconclusive.
Vitamin D supplementation in preterm babies for 6 months and avoidance of cow’s milk for first three
days of life may be useful in prevention of recurrent wheezing in preschool children.
Author(s): Suhas Kulkarni*, Anil Kurane
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