A retrospective analysis of adenoidal size in children with allergic rhinitis and nonallergic idiopathic rhinitis.

Background: Increased incidence of adenoidal tissue enlargement in children with allergic rhinitis (AR) when compared to non-atopic children had been reported. However, data with respect to the comparison of adenoidal size in children with AR and non-allergic idiopathic rhinitis (IR) is still lacking in the literature.

Objective: We aimed to compare the size of the adenoid in children with AR and with nonallergic IR.

Aminophylline for treating asthma and chronic obstructive pulmonary disease.

Aminophylline is a complex of theophylline and ethylenediamine. Its main pharmacological action is relaxation of bronchial smooth muscle. Two meta-analyses examining the efficacy of aminophylline in acute asthma attacks in children and in adults have been reported by the Cochrane Collaboration.

The role of IL-18 in Th1/Th2 balance in children.

Interleukin (IL)-18 has been identified as a mediator inducing interferon gamma release from type 1 helper (Th1) cells, CD8+ T cells, and natural killer cells, synergizing with IL-12. Several studies report differential roles of IL-18; but little is known about the role of IL-18 in Th1/Th2 balance in children. The aim of this study was to evaluate the role of IL-18 in Th1- and Th2-mediated diseases of children.

Does recurrent sinusitis lead to a sinusitis remodeling of the upper airways in asthmatic children with chronic rhinitis?

Background: There is a growing recognition that some patients with long-standing asthma may possess a component of irreversible airflow obstruction due to airway remodeling. The underlying chronic inflammation has been implicated as the cause of this process. In the upper airways, the inflammation presents itself with symptoms of chronic rhinitis, leading to recurrent sinusitis, in some patients.

Effects of passive smoking on lung function in children.

Background: Passive smoking can have significant effects on lung function with reductions in forced vital capacity (FVC), forced expiratory volume in one second (FEV1) and forced mid-expiratory flow rate (FEF25-75%) of between 5 and 10%.

Methods: Fifty non-smoking children aged 6-15 years, who had no history of asthma or atopy and no parental history of atopy, were assessed with respect to their lung functions (FEV1, FEV1/FVC, FEF25-75%).

Results: Thirty-three of these children were being exposed to environmental tobacco smoke inside their homes, while 17 children were not exposed.