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Evidence Gaps in the Identification and Treatment of Hypertension in Children
1Division of Nephrology, Department of Pediatrics, University of British Columbia, BC Children's Hospital, Vancouver, British Columbia, Canada.
Insights
Recognizing and treating childhood hypertension prevents organ damage and reduces adult cardiovascular disease risk. Evidence gaps remain in diagnosis, management, and optimal treatment strategies for pediatric hypertension.
Area of Science:
- Pediatric Medicine
- Cardiovascular Health
- Hypertension Research
Background:
- Childhood hypertension recognition and treatment aim to prevent organ damage and reduce adult cardiovascular disease.
- Evidence guiding pediatric blood pressure management is less robust than in adult medicine.
- Current guidelines and diagnostic methods for pediatric hypertension require further refinement.
Purpose of the Study:
- To summarize current evidence and identify knowledge gaps in pediatric hypertension diagnosis, investigation, management, and outcomes.
- To highlight the need for improved diagnostic accuracy and treatment strategies for childhood hypertension.
- To underscore the importance of early intervention for long-term cardiovascular health.
Main Methods:
- Review of existing literature on pediatric hypertension diagnosis and management.
- Analysis of current clinical practice recommendations and guidelines.
- Identification of areas with insufficient evidence or ongoing research.
Main Results:
- Oscillometric blood pressure devices yield different readings than manual methods, necessitating careful interpretation.
- Optimal protocols for diagnosing hypertension in children, including the number and timing of readings, are still under investigation.
- Recent guidelines offer revised normative data and risk thresholds, but optimal thresholds remain undetermined.
- Lifestyle modifications are crucial, yet specific effective dietary and physical activity interventions are not well-defined.
- While various antihypertensive drug classes are used, only a few have been systematically studied in children.
- Childhood blood pressure levels and their rate of change appear predictive of adulthood cardiovascular disease.
Conclusions:
- Significant evidence gaps persist in the diagnosis and management of pediatric hypertension.
- Further research is essential to establish optimal diagnostic criteria, treatment protocols, and long-term outcomes.
- Early identification and management of childhood hypertension are critical for preventing future cardiovascular complications.
Abstract:
The ultimate goal of recognizing and treating hypertension in childhood is to prevent target-organ damage during childhood and to reduce the risk of adulthood cardiovascular disease. The quality of evidence to guide blood pressure management in children is lower than in adult medicine, yet some common findings support clinical practice recommendations. Oscillometric devices are increasingly replacing manual blood pressure measurements, but evidence shows that readings are not equivalent between the 2 methods. In addition, multiple blood pressure readings are needed before diagnosing a child with hypertension, but the optimal number and timing are still being determined. The recent American Academy of Pediatrics blood pressure guideline has revised the normative data tables and included threshold blood pressure limits which seem to identify children with higher cardiovascular risks. Threshold limits vary between guidelines, and the most accurate threshold has yet to be determined. Lifestyle modifications are a cornerstone of hypertension management, but the optimal diet and physical activity changes for beneficial effect are not known. When pharmacotherapy is needed, physicians have used drugs from all antihypertensive classes in children, yet only a few classes have been systematically studied. The long-term cardiovascular consequences of elevated blood pressure during childhood are under investigation and it seems that the lower the childhood blood pressure the better and that the rate of change during childhood is predictive of adulthood disease. With much still to learn, this article summarizes the evidence and the evidence gaps for the diagnosis, investigation, management, and outcomes of pediatric hypertension.
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