[Atorvastatin-induced anemia accompanied by elevated serum LDH levels]

Area of Science:

• Internal Medicine
• Pharmacology

Background:

• Statins are commonly prescribed for hyperlipidemia.
• Their use is expanding, including in patients undergoing tyrosine kinase inhibitor therapy.

Observation:

• A patient presented with anemia and markedly elevated lactate dehydrogenase (LDH) levels.
• Initial screenings did not reveal an underlying disease.
• The patient was taking atorvastatin despite having low cholesterol levels.

Findings:

• Discontinuation of atorvastatin led to the resolution of the patient's symptoms.
• Similar cases were observed with other statins like rosuvastatin and pravastatin, suggesting a class effect.
• Drug-induced hyperlipidemia and subsequent anemia/elevated LDH are potential adverse effects.

Implications:

• Clinicians should carefully monitor cholesterol levels in patients prescribed statins.
• Discontinuation of statins may be necessary when cholesterol levels are not elevated or when unexplained anemia and elevated LDH occur.
• This highlights the importance of judicious statin use and vigilant patient monitoring.