Hypertension in children

The organising idea of this topic is that childhood hypertension is a diagnosis of confirmation, stratification and trigger, not of a single cuff reading. The American Academy of Pediatrics 2017 guideline reframed the field: it dropped the term prehypertension, introduced an elevated category, lowered the drug-treatment threshold, and made ambulatory monitoring the standard for confirmation. [1] Every step of the clinical pathway flows from that framework — measure, confirm, search for a cause, look for target-organ damage, and treat to a target. [7]

This page covers the measurement technique, percentile-based classification, primary-versus-secondary split, work-up for target-organ damage, the lifestyle and pharmacological management, and the regional differences between the AAP and European Society of Hypertension approaches. It links to coarctation and chronic kidney disease leaves for the curable secondary causes that every candidate must be able to name. [3] [8]

Overview & Definition

Blood pressure in children is a continuous variable that rises with age, body size and pubertal maturation, so a reading that is normal for a tall sixteen-year-old is hypertensive for a small six-year-old. The definition is therefore percentile-based, anchored to normative data from healthy children. The 2017 AAP clinical practice guideline defines normal blood pressure as below the 90th percentile for age, sex and height (or below 120/80 mmHg for adolescents aged 13 years and older), elevated blood pressure as the 90th to below the 95th percentile (or 120/80 to below the blood-pressure-based threshold for adolescents), stage 1 hypertension as the 95th percentile to below the 95th percentile plus 12 mmHg, and stage 2 hypertension as at or above the 95th percentile plus 12 mmHg. [1]

The practical corollary is that no child is labelled hypertensive on the basis of one reading. The diagnosis of office hypertension requires elevated or stage 1 readings on three separate occasions, or confirmation by 24-hour ambulatory blood pressure monitoring. A child with stage 2 readings is referred promptly and evaluated rather than watched. This rule protects children from the consequences of mislabelling — anxiety, restricted activity, insurance and employment effects — while ensuring that genuine disease is not missed. [1] [9]

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1. [1]Flynn JT; Kaelber DC; Baker-Smith CM; et al Clinical Practice Guideline for Screening and Management of High Blood Pressure in Children and Adolescents. Pediatrics, 2017.PMID 28827377
2. [2]National High Blood Pressure Education Program Working Group on High Blood Pressure in Children and Adolescents The fourth report on the diagnosis, evaluation, and treatment of high blood pressure in children and adolescents. Pediatrics, 2004.PMID 15286277
3. [3]Lurbe E; Agabiti-Rosei E; Cruickshank JK; et al 2016 European Society of Hypertension guidelines for the management of high blood pressure in children and adolescents. J Hypertens, 2016.PMID 27467768
4. [4]Hansen ML; Gunn PW; Kaelber DC Underdiagnosis of hypertension in children and adolescents. JAMA, 2007.PMID 17712071
5. [5]Kollias A; Dafni M; Poulidakis E; et al Out-of-office blood pressure and target organ damage in children and adolescents: a systematic review and meta-analysis. J Hypertens, 2014.PMID 25304469
6. [6]Mitsnefes MM; Laskin BL; Dahhou M; et al Mortality risk among children initially treated with dialysis for end-stage kidney disease, 1990-2010. JAMA, 2013.PMID 23645144
7. [7]Lurbe E; Litwin M; Pall D; et al Insights and implications of new blood pressure guidelines in children and adolescents. J Hypertens, 2018.PMID 29677052
8. [8]Flynn JT; Kruger R; Brady TM; et al Practical approach to evaluate and manage hypertension in youth: an International Society of Hypertension position paper. J Hypertens, 2026.PMID 41674374
9. [9]Lurbe E; Mancia G; Calpe J; et al Joint statement for assessing and managing high blood pressure in children and adolescents: Chapter 1. How to correctly measure blood pressure in children and adolescents. Front Pediatr, 2023.PMID 37138561
10. [10]Hooper SR; Johnson RJ; Gerson AC; et al Overview of the findings and advances in the neurocognitive and psychosocial functioning of mild to moderate pediatric CKD: perspectives from the Chronic Kidney Disease in Children (CKiD) cohort study. Pediatr Nephrol, 2022.PMID 34110493
11. [11]Miyashita Y; Peterson D; Rees JM; et al Isradipine for treatment of acute hypertension in hospitalized children and adolescents. J Clin Hypertens (Greenwich), 2010.PMID 21054771
12. [12]Flynn JT Neonatal hypertension. J Med Liban, 2010.PMID 21462844