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Secondary Hypertension in Children-Identifying and Investigating at Risk Children
Fang Chao Linda Ding1, Blake J Sandery2
1Section of Nephrology, Department of Pediatrics, Alberta Children's Hospital, University of Calgary, Calgary, Alberta, Canada. Linda.Ding@albertahealthservices.ca.
Insights
Children under 6, with prematurity history, or low BMI may have secondary hypertension. A structured diagnostic approach can help identify these cases and reduce unnecessary tests.
Area of Science:
- Pediatric Nephrology
- Cardiology
- Clinical Medicine
Background:
- Secondary hypertension is a significant concern in pediatric patients.
- Identifying underlying causes is crucial for effective management and preventing long-term complications.
Purpose of the Study:
- To review recent literature on demographic factors and diagnostic workup for secondary hypertension in children.
- To provide a framework for healthcare providers to identify pediatric patients requiring further investigation for secondary hypertension.
- To minimize unnecessary diagnostic testing burdens by highlighting the utility of various investigations.
Main Methods:
- Literature review of recent studies on pediatric secondary hypertension.
- Analysis of demographic features associated with increased risk.
- Evaluation of diagnostic investigations for identifying secondary causes.
Main Results:
- Children younger than 6 years, with a history of prematurity, family history of secondary hypertension, or low body mass index (BMI < 10th percentile) are at increased risk.
- A testing schema stratified by age and BMI is suggested.
- Renal ultrasound may be a useful initial investigation for asymptomatic children.
- Lipid profiles in overweight/obese children and echocardiograms for end-organ damage may yield significant findings.
Conclusions:
- A risk-stratified approach to diagnostic workup is recommended for pediatric hypertension.
- Further research is needed to establish definitive diagnostic utility of various tests for secondary hypertension in children.
- Optimizing diagnostic strategies can improve patient outcomes and reduce healthcare costs.
Purpose Of Review:
We aim to review the most recent literature on demographic features and diagnostic workup of children with secondary hypertension, in order to provide a framework for health providers to determine which hypertensive pediatric patients warrant further investigation for secondary causes. By highlighting the utility of various diagnostic investigations, we aim to minimize unnecessary testing burden.
Recent Findings:
A recent meta-analysis revealed that hypertensive children and adolescents with any of the following features were at increased risk of secondary hypertension: < 6 years of age, history of prematurity, family history of secondary hypertension, body mass index (BMI) < 10th percentile. Based on available evidence, we suggest a testing schema that is stratified by both age and BMI. Limited evidence suggest renal ultrasound may be one of the most useful initial investigations for secondary causes in asymptomatic hypertensive children. Lipid profile in overweight/obese children, and echocardiogram for end organ involvement may have high yield of abnormal results. Further studies on the diagnostic utility of tests for secondary hypertension are required, as the current body of evidence is limited.
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