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[Problems with current hypertension definition in children]
Insights
Defining childhood hypertension needs improvement. Current methods lack end-organ damage assessment and don't account for factors like white coat hypertension, necessitating better blood pressure measurement standards.
Area of Science:
- Pediatrics
- Cardiology
- Hypertension Research
Context:
- Current definitions of arterial hypertension in children rely on height-related percentiles of healthy populations.
- This definition is problematic as it does not directly assess end-organ damage.
- Existing criteria overlook demographic variations, population evolution, and transient blood pressure changes like white coat hypertension.
Purpose:
- To highlight the limitations of current pediatric hypertension definitions.
- To propose incorporating end-organ damage markers and ambulatory blood pressure monitoring for improved diagnostic accuracy.
- To emphasize the need for updated, reliable definitions in pediatric hypertension management.
Summary:
- The current definition of hypertension in children is based on blood pressure percentiles, not end-organ damage, posing significant limitations.
- Integrating markers of hypertensive sequelae (e.g., carotid intimal-medial thickness, left ventricle mass index) and ambulatory blood pressure monitoring could enhance diagnostic reliability.
- Addressing ethnic differences and the transient nature of blood pressure elevations is crucial for accurate diagnosis and clinical decision-making.
Impact:
- Improved diagnostic accuracy for childhood hypertension.
- More effective clinical decision-making and treatment strategies.
- Enhanced understanding of pediatric cardiovascular health and long-term outcomes.
Abstract:
The Task Force data have added immeasurably to our understanding of the normal distribution of blood pressure in children. However, the manner in which arterial hypertension is defined in children is not without problems. The main problem is that the current definition of hypertension in children is not based on the end-organ damage assessment, but on the blood pressure height-related percentile distribution of healthy reference population. This could be overcome by introducing the relationship of blood pressure values with sensitive markers of hypertensive sequelae (such as carotid intimal-medial thickness, left ventricle mass index, retinal arteriolar narrowing and arteriovenous nicking as well as microalbumin urinary excretion) to define better the specific blood pressure values with outcomes. Furthermore, the current definition of hypertension based on the demographic and clinical characteristics of the reference population does not consider the normal evolution of reference population, as well as its ethnic differences. In addition, being based on the single occasion measurement in quite position it does not account for the possibility of transient, stress induced elevations in blood pressure known as white coat hypertension. Therefore, incorporation ambulatory 24 h blood pressure data into the definition of arterial hypertension in children may increase the definition reliability for clinical decision - making, although for such reliability the paediatric normative ambulatory blood pressure data should be improved.
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