Study of Some Factors Associated with High-Risk Asthma in Children

Inass M. Taha; Sahar M. Ali; Ahmad Abdelsadek Mohammad; Nany M. S. Nawar

doi:10.12816/0000848

Article Details

Study of Some Factors Associated with High-Risk Asthma in Children

Authors:

Inass M. Taha | Sahar M. Ali | Ahmad Abdelsadek Mohammad | Nany M. S. Nawar

Publisher:

Pan Arab League of Continuous Medical Education

Main Topics:

Medicine

Journal:

The Egyptian Journal of Hospital Medicine 2013 vol.51, pp.317-325

Document Type:

Article

Publication Date:

4/2013

Document Language:

English

Document ID (Org No.):

35623

Frequency:

Quarterly

eISSN:

20907125

pISSN:

16872002

DOI:

10.12816/0000848

Descriptors:

Keywords:

Abstract:

 Background: Bronchial asthma is characterized by lower respiratory tract inflammation associated with bronchial hyper responsiveness with variable and reversible airflow obstruction. The majority of asthmatics are sensitized to at least one common allergen.
Aim of the study: 
The aim of this study is to determine the association of high-risk asthma with allergy-related parameters (total serum IgE levels, serum levels of allergen- specific IgE, eosinophil count, eosinophil percentage ) and pulmonary functions in children.
Subjects and methods: 50 Children aged 8-15 years diagnosed with atopic asthma were enrolled in the study. Pulmonary function tests, total leukocyte count (TLC), eosinophil count, and eosinophil percentage were estimated. Total serum immunoglobulin E (IgE) levels and serum IgE levels specific to antigens from 1 to 9 allergens with class 1 or higher, namely, Dermatophagoides pteronyssinus (D. pteronyssinus) , Dermatophagoides farina (D. farina ), cat dander , dog dander, cockroach, egg white, milk, Aspergillus fumigatus, and fish, were measured using UniCAP fluoroenzyme immunoassay (FEIA).

Results: This study includes 50 participants, 20 (40%) belonged to the high-risk and 30 (60%) to the low-risk groups. This study revealed no significant association in peak expiratory flow rate (PEFR, ％) values between high-risk and low-risk asthma groups (p ˃ 0.05). There was no significant association in forced expiratory volume in first second [ FEV1 (L)] values between high-risk and low-risk asthma groups ( p ˃ 0.05), whereas there was significant association in FEF 25-75% (forced expiratory flow 25-75%) values between high-risk and low-risk asthma groups ( p ˂ 0.05). There was a significant association between total serum IgE level and high-risk asthma, but TLC, eosinophil count, and eosinophil percentage showed non significant association with high-risk asthma. Serum levels of IgE specific to D. pteronyssinus, D. farina, cat dander, and dog dander were significantly associated with high-risk asthma. The high-risk group had higher serum levels of IgE specific to D. pteronyssinus ( p < 0.0001), D. farina ( p < 0.0001), cat dander ( p < 0.0001), and dog dander antigens ( p < 0.0001) compared with those in the low-risk group. There was no significant association between high-risk asthma and the serum levels of IgE specific to antigens from other allergens (including cockroach, egg white, and milk). Serum levels of IgE specific to Aspergillus fumigatus and fish were both negative (class level < 1) in both the high-risk group and the low-risk group.

Conclusion
Children with higher serum levels of IgE specific to D.pteronyssinus, D. farina, cat dander and dog dander antigens, and total serum IgE levels, and lower FEF25-75% values belong to the high-risk asthma group. The characterization of risk factors has enabled us to identify high-risk asthma in children , leading to better treatment options.
Key words: HIGH-RISK ASTHMA,CHILDREN.

Article Details

Study of Some Factors Associated with High-Risk Asthma in Children

Authors:

Inass M. Taha | Sahar M. Ali | Ahmad Abdelsadek Mohammad | Nany M. S. Nawar

Publisher:

Pan Arab League of Continuous Medical Education

Main Topics:

Medicine

Journal:

The Egyptian Journal of Hospital Medicine 2013 vol.51, pp.317-325

Document Type:

Article

Publication Date:

4/2013

Document Language:

English

Document ID (Org No.):

35623

Frequency:

Quarterly

eISSN:

20907125

pISSN:

16872002

DOI:

10.12816/0000848

Descriptors:

RESPIRATORY DISEASES

ASTHMA

SENSITIVITY

PATHOGENS

CHILDREN

DIAGNOSIS

PATIENTS

HIGH

RISK ASTHMA

CHILDREN

Issues

Article Details

Authors: Inass M. Taha | Sahar M. Ali | Ahmad Abdelsadek Mohammad | Nany M. S. Nawar

Publisher: Pan Arab League of Continuous Medical Education

Main Topics: Medicine

Journal: The Egyptian Journal of Hospital Medicine 2013 vol.51, pp.317-325

Document Type: Article

Publication Date: 4/2013

Document Language: English

Document ID (Org No.): 35623

Frequency: Quarterly

eISSN: 20907125

pISSN: 16872002

DOI: 10.12816/0000848

Descriptors:

Issues

Authors:

Inass M. Taha | Sahar M. Ali | Ahmad Abdelsadek Mohammad | Nany M. S. Nawar

Publisher:

Pan Arab League of Continuous Medical Education

Main Topics:

Medicine

Journal:

The Egyptian Journal of Hospital Medicine 2013 vol.51, pp.317-325

Document Type:

Article

Publication Date:

4/2013

Document Language:

English

Document ID (Org No.):

35623

Frequency:

Quarterly

eISSN:

20907125

pISSN:

16872002

DOI:

10.12816/0000848