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Published on: November 5, 2010
Maturational delay and temporal growth retardation in asthmatic boys
Insights
Asthmatic boys experience delayed growth and sexual maturation. This study found growth retardation during childhood and adolescence, with a delayed adolescent growth spurt, suggesting factors related to asthma impact development.
Area of Science:
- Pediatric Endocrinology
- Respiratory Medicine
- Human Growth and Development
Background:
- Asthma is a common chronic respiratory disease in children.
- Growth and pubertal development can be affected by chronic illnesses.
- Understanding these effects in asthmatic boys is crucial for clinical management.
Purpose of the Study:
- To analyze growth patterns in height, bone age, and sexual maturation in asthmatic boys.
- To identify specific age periods of growth retardation and pubertal delay.
- To investigate the relationship between asthma and developmental delays.
Main Methods:
- Mixed-longitudinal analysis of height measurements in 531 asthmatic boys (ages 2-20).
- Mixed-longitudinal analysis of bone age in 370 asthmatic boys.
- Cross-sectional analysis of pubic hair development in 91 asthmatic boys.
Main Results:
- Height growth showed no infancy retardation, slight childhood retardation, and pronounced adolescent delay.
- The adolescent growth spurt was delayed by approximately 1.3 years.
- Bone age was slightly retarded between ages 6-13, and pubic hair development was significantly delayed.
- Factors secondary to asthma appear to cause growth and developmental retardation.
Conclusions:
- Asthmatic boys exhibit a characteristic pattern of delayed growth and sexual maturation.
- These delays are linked to physiological maturation issues secondary to the asthmatic condition.
- Further research is needed to elucidate the specific mechanisms and optimize interventions.
Abstract:
Growth in height, bone age, and sexual maturation have been studied in asthmatic boys 2 to 20 yr of age. The mean pattern of growth in height has been analyzed mixed-longitudinally in 531 patients (1,754 measures) and seemed to be determined by a delay in physiologic maturation. The asthmatic boys' growth in height showed no retardation during infancy, a small but consistent retardation during childhood, a more pronounced delay at adolescence, and a catch-up growth toward adulthood. The mean adolescent growth spurt is delayed by about 1.3 yr. Bone age has been analyzed mixed-longitudinally in a subsample of 370 patients (660 observations) and showed a slight retardation at all ages between 6 and 13 yr. Development of pubic hair of 91 subjects analyzed cross-sectionally was definitely retarded when compared to adequate reference data. Evidence was given that factors secondary to the asthmatic syndrome are involved in the retardation of growth and development.
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