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Severe therapy resistant asthma and allergy

post in: Health Date:17 Oct 2017, 05:59 views:734

Severe therapy resistant asthma and allergy

Jon R Konradsen, Astrid Lindgren Childrens Hospital, H1:02, Karolinska University Hospital, SE-17176 Solna, Sweden.

Tel:, fax:, e-mail: To cite this article: Konradsen JR, Nordlund B, Lidegran M, Pedroletti C, Gronlund H, van Hage M, Dahlen B, Hedlin G and In Cooperation with the Swedish network of Pediatric Allergists, Severe Asthma Network. Problematic severe asthma: A proposed approach to identifying children who are severely resistant to therapy.

Pediatric Allergy Immunology 2011: 22 : 918. Abstract, children with problematic severe asthma (PA) are either difficult to treat because of the presence of aggravating factors or else severely resistant to therapy.

We investigated a cohort of school-aged children with PA and compared these children to age-matched peers with controlled persistent asthma (CA). The aims were to characterize features of children suffering from PA and identify children who were severely resistant to therapy. In this cross-sectional, multicenter comparison of children with different manifestations of persistent asthma, proceedings PA was defined as insufficient asthma control despite level 4 treatment, according to gina.

The protocol included questionnaires, spirometry, methacholine provocation, measurement of fraction of nitric oxide in exhaled (feno) and nasal air, blood sampling for inflammatory biomarkers and atopy, and computerized tomography of sinuses and lungs (in the PA group only).

Of the 54 children with PA, 61 had therapy-resistant asthma, with the remaining description being difficult to treat because of identified aggravating factors. Children with PA more often had parents with asthma (p.003 came from families with a lower socioeconomic status (p.01 were less physically active (p.04 and had more comorbidity with rhinoconjunctivitis (p.01) than did the 39 children with. The former also exhibited lower FEV1 values (p.02) and increased bronchial hyper-responsiveness (p.01 but there were no differences in atopy (p.81) or feno (p.16).

A non-invasive protocol, involving a standardized and detailed clinical characterization, revealed distinguishing features of children with PA and enabled the identification of children with therapy-resistant asthma.

Children with severe asthma may fall into 2 categories, difficult-to-treat asthma or severe therapy - resistant asthma. Difficult-to-treat asthma is defined as poor.

Among children with severe, therapy - resistant asthma, YKL-40 levels. Asthma and Allergy, association s Research Foundation, the Centre for. And in vitro allergy steroid-induced IL-17A in paediatric severe therapy - resistant asthma.

 

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