Variations in Pediatric Asthma Hospitalization Rates and Costs Between and Within Nordic Countries

Allergic Rhinitis and Its Impact on Bronchial Asthma

“…However, the presence of rhinitis appears to be associated with more severe asthma. In a study of hospital admissions in 2961 children from Norway, even when correcting for severity of asthma, children with AR had a higher risk of hospital readmission and more hospital days per year when compared to asthmatic patients without rhinitis [Kocevar, 2004]. Similar findings have been noted in the United Kingdom.…”

Infantile respiratory syncytial virus and human rhinovirus infections: respective role in inception and persistence of wheezing

“…RSV is ubiquitous and nearly all children are infected by 2 years of age or following two RSV seasons, and LRTIs due to RSV are a leading cause of hospitalisation during the first year of life [7,[22][23][24]. However, only a subset of the infected children develops severe disease [8,[23][24][25][26][27].…”

“…Current studies suggest that both genetic characteristics and epigenetic mechanisms may underlie the complex associations between exposure to environmental factors in early childhood and wheezing and asthma in later life [2,3]. There is little doubt that respiratory viral infections constitute major environmental risk factors for the development of obstructive respiratory disease in children [2][3][4][5], disorders that are characterised by a sequence of injury, inflammation and, ultimately, airway obstruction [6,7]. The most common viruses identified during early-life wheezing illnesses are respiratory syncytial virus (RSV) and human rhinovirus (HRV) [8].…”

Comorbidities of asthma and the unified airway

“…13 Nasal symptoms have been associated with asthma. Patients with nasal complaints (congestion, itching, and rhinorrhea), should be carefully evaluated for asthma.…”