High Cholesterol in Children: Causes, Risks & Management

Pediatric dyslipidemia is increasingly common (7–10% of US children) and tracks into adulthood, accelerating atherosclerosis.

Screening Guidelines (AAP/NHLBI)

• Universal: Once at ages 9–11 and 17–21
• Selective (high risk): Age 2+ if family history premature CVD, parental hypercholesterolemia, obesity, diabetes, hypertension, smoking
• Fasting lipid panel preferred; non-fasting acceptable for screening

Causes

• Genetic: Familial hypercholesterolemia (FH) – 1:250 (heterozygous); LDL >160–190 mg/dL
• Diet: High saturated/trans fat, added sugars, low fiber
• Obesity/insulin resistance: ↑ triglycerides, ↓ HDL, small dense LDL
• Sedentary lifestyle
• Secondary: Hypothyroidism, nephrotic syndrome, medications (antipsychotics, isotretinoin)

Management

1. Lifestyle (first-line, all ages): DASH/Mediterranean diet, 60 min/day activity, screen time limits, weight management
2. Pharmacotherapy (age ≥10, usually ≥8 for FH): Statins (atorvastatin, rosuvastatin, pravastatin approved), ezetimibe, bile acid sequestrants. Target LDL <130 (or <100 with risk factors)
3. Family-based approach: Parents model behaviors; household dietary change

Long-Term Impact

Childhood LDL levels correlate with carotid intima-media thickness in adulthood. Early intervention reduces lifetime CVD burden.