PE22.6 | Pediatric Hypertension — Summary & Reflection

KEY TAKEAWAYS

Paediatric hypertension is defined as average BP ≥95th percentile for age, sex, and height on three separate occasions. Classification distinguishes elevated BP (90th–<95th percentile), Stage 1 (95th–99th + 5 mmHg), and Stage 2 (>99th + 5 mmHg). Correct cuff size (bladder width ≥40%, length 80–100% of arm circumference) is essential for accurate measurement. Secondary hypertension predominates in young children, with renal parenchymal disease as the most common cause; primary hypertension becomes more common in overweight adolescents. Investigation begins with urine, renal function, electrolytes, and renal ultrasound, with targeted endocrine and vascular workup guided by findings. Management starts with lifestyle modification for elevated BP and Stage 1 without complications; pharmacotherapy (ACEi/ARB, CCB, beta-blocker, or diuretic at weight-based dosing) is added for Stage 2, symptomatic cases, or target-organ damage. Hypertensive emergencies require controlled BP reduction — no more than 25% of MAP in the first 8 hours — using IV labetalol or nitroprusside.

REFLECT

Think about the clinical encounter you just read in the hook: a 9-year-old with headaches, elevated BP, and proteinuria whose mother attributed his symptoms to screen time. How would your management have differed if you had not measured his blood pressure during that visit? Now consider: how will you ensure that blood pressure measurement becomes a routine part of every paediatric consultation you conduct, even when the presenting complaint seems unrelated to cardiovascular disease? What system-level changes in a clinical setting — for instance, a busy outpatient department — might help make routine paediatric BP screening the norm rather than the exception?