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A Component-resolved Diagnostic Approach for a Study on Grass Pollen Allergens in Chinese Southerners with Allergic Rhinitis and/or Asthma
Published on: June 4, 2017
The relationship of aeroallergen sensitization phenotypes to asthma control in primarily Hispanic asthmatic children
T Morphew1, Kenny Y C Kwong, B Yang
1Morphew Consulting, LLC , Manhattan Beach, CA , USA .
Insights
Aeroallergen sensitization phenotypes can predict asthma control in children. Pollen sensitization may worsen asthma control in intermittent cases, while dander sensitization may protect persistent cases.
Area of Science:
- Pediatric Allergy and Immunology
- Respiratory Medicine
- Environmental Health
Background:
- Asthma affects millions of children globally.
- Aeroallergen sensitization is a known risk factor for asthma development and exacerbations.
- Predicting asthma control is crucial for effective management.
Purpose of the Study:
- To investigate if aeroallergen sensitization phenotypes predict the maintenance of well-controlled asthma in children.
- To explore the differential impact of indoor and outdoor aeroallergen sensitization on asthma control based on severity.
Main Methods:
- Retrospective analysis of 1627 asthmatic children (age 2-18) from the CHOC Children's Breathmobile™ program.
- Skin testing to indoor and outdoor aeroallergens.
- Asthma severity and control assessed using NHLBI EPR-3 Guidelines criteria.
Main Results:
- Children with persistent asthma showed higher sensitization rates to all aeroallergens compared to those with intermittent asthma.
- Intermittent asthma patients sensitized to pollen were less likely to maintain asthma control.
- Dander sensitization was protective for persistent asthma control but not for intermittent asthma.
Conclusions:
- Aeroallergen sensitization assessment is recommended for all children with asthma, irrespective of baseline severity.
- Understanding specific aeroallergen sensitization patterns can aid in personalized asthma management strategies.
Objective:
The purpose of this study was to determine whether aeroallergen sensitization phenotypes could predict maintenance of well-controlled asthma.
Methods:
Asthmatic children age 2-18 years who enrolled in the CHOC Children's Breathmobile™ program from April 2002 to December 2011 were included in this retrospective analysis if they had been skin tested to a panel of indoor and outdoor aeroallergens and had returned for follow-up care within 6 months of their baseline visit. The study observation period encompassed all year one visits. Asthma severity and control were defined by NHLBI EPR-3 Guidelines criteria.
Results:
In the 1627 primarily Hispanic children evaluated, those with persistent asthma were more likely than those with intermittent disease to be sensitized to each aeroallergen tested and to have more total sensitizations. Children with intermittent, but not persistent, asthma at baseline who were sensitized to pollen2 (trees or weeds) were less likely to maintain well-controlled asthma at follow-up visits. Whereas, sensitization to dander (cat, dog or feather) showed a protective effect to maintenance of well-controlled asthma in patients with persistent, but not intermittent, baseline disease severity.
Conclusions:
Our data suggest that both indoor and outdoor aeroallergens should be assessed regardless of baseline asthma severity, including those with intermittent asthma.
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