We believe that a critical issue has been missed in the articles of Hartling et al1 and Christakis and Lehmann2 about epinephrine and the treatment of bronchiolitis. Both articles considered studies involving children younger than 2 years, which meets the North American definition of bronchiolitis; however, bronchiolitis morbidity and finding an effective treatment concern mainly infants (younger than 1 year).
Barbi E, Neri E, Ventura A. Nomina Sunt Consequentia Rerum: Time for a Change in the Definition of Bronchiolitis?. Arch Pediatr Adolesc Med. 2004;158(4):403. doi:10.1001/archpedi.158.4.403-a