Which statin is given to an 8 years old child with heterozygous familial hypercholesterolemia?
**Core Concept**
In heterozygous familial hypercholesterolemia (HeFH), the LDL receptor is partially functional, leading to increased LDL cholesterol levels in the blood. Statins are HMG-CoA reductase inhibitors that reduce cholesterol synthesis in the liver, thereby lowering LDL cholesterol levels.
**Why the Correct Answer is Right**
Rosuvastatin is the preferred statin for children with HeFH due to its high potency and low risk of liver toxicity. It is a potent inhibitor of HMG-CoA reductase, which is the rate-limiting enzyme in cholesterol synthesis. By inhibiting this enzyme, rosuvastatin reduces the production of LDL cholesterol in the liver.
**Why Each Wrong Option is Incorrect**
**Option A:** Atorvastatin is also a potent statin, but it is not the preferred choice for children with HeFH. Its higher risk of liver toxicity compared to rosuvastatin makes it a less favorable option.
**Option B:** Simvastatin is an older statin with a higher risk of muscle toxicity, making it less suitable for pediatric patients.
**Option C:** Lovastatin is another older statin with a higher risk of liver toxicity and muscle toxicity, making it an unfavorable choice for children with HeFH.
**Clinical Pearl / High-Yield Fact**
In pediatric patients with HeFH, the goal of statin therapy is to reduce LDL cholesterol levels by 20-30% to prevent cardiovascular disease. Rosuvastatin is often the preferred choice due to its high potency and favorable safety profile.
**Correct Answer:** C. Lovastatin.