Vascular function in asthmatic children and adolescents.
Leonardo Silva Augusto1, Grazielle Caroline Silva2, José Felippe Pinho1
1Faculdade Ciências Médicas-Minas Gerais, Pós-Graduação em Ciências da Saúde, 30130-110 Alameda Ezequiel Dias 275-Centro, Belo Horizonte, MG, Brazil.
Respiratory Research
|January 19, 2017
Summary
Children with asthma show increased arterial stiffness, a potential early marker for cardiovascular events, even without endothelial dysfunction. Further research is needed to understand the link between asthma and vascular health.
Area of Science:
- Cardiovascular Health
- Pediatric Pulmonology
- Vascular Physiology
Background:
- Asthma is linked to increased cardiovascular events, but its impact on vascular function in children is unclear.
- This study investigated endothelial function and arterial stiffness in pediatric asthma patients.
- Male adolescents with asthma were compared to a healthy control group.
Discussion:
- Asthmatic children exhibited higher augmentation index (AIx@75%), indicating increased arterial stiffness.
- Endothelial function, measured by the natural logarithm of the reactive hyperemia index (LnRHI), was similar between groups.
- The lack of correlation between LnRHI and clinical variables in asthmatics suggests distinct pathophysiological pathways.
Key Insights:
- Increased arterial stiffness (AIx@75%) in pediatric asthma may precede endothelial dysfunction.
- Vascular impairment could be an early indicator of cardiovascular risk in asthmatic children.
- Asthma's association with cardiovascular events may involve mechanisms beyond endothelial dysfunction.
Outlook:
- Prospective, randomized controlled trials are necessary to elucidate the physiopathological mechanisms linking asthma and arterial stiffness.
- Further research should explore the long-term cardiovascular implications of early vascular changes in pediatric asthma.
- Investigating the role of different contributing factors to cardiovascular events in this population is crucial.
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