Atorvastatin-Induced Refractory Thrombocytopenia

Area of Science:

• Pharmacology
• Hematology
• Internal Medicine

Background:

• Drug-induced thrombocytopenia (DIT) is a rare but serious adverse drug reaction.
• Statins are widely prescribed for cardiovascular disease prevention.
• Thrombocytopenia associated with statins is exceptionally uncommon.

Observation:

• A 69-year-old woman presented with refractory thrombocytopenia.
• The patient developed severe thrombocytopenia after initiating atorvastatin therapy.
• Platelet counts remained critically low despite standard treatments.

Findings:

• This case represents the fourth reported instance of atorvastatin-induced thrombocytopenia.
• It is the first documented case of atorvastatin-induced refractory thrombocytopenia.
• A comprehensive literature review of statin-induced thrombocytopenia cases was conducted.

Implications:

• This case underscores the potential for rare but severe hematologic adverse events with statin use.
• Clinicians should consider drug-induced thrombocytopenia in patients on statins presenting with unexplained low platelet counts.
• Further investigation into the mechanisms of statin-induced immune thrombocytopenia may be warranted.