ST segment elevation myocardial infarction as a presenting feature of thrombotic thrombocytopenic purpura

Auras R Atreya1, Sonali Arora, Senthil K Sivalingam

  • 1Department of Internal Medicine, Baystate Medical Center/Tufts University School of Medicine, Massachusetts, USA.

Insights

ST-elevation myocardial infarction (STEMI) can rarely be the first sign of thrombotic thrombocytopenic purpura (TTP). Early diagnosis and treatment of TTP are crucial for full recovery, even with initial cardiac symptoms.

Area of Science:

  • Cardiology
  • Hematology
  • Internal Medicine

Background:

  • ST-segment elevation myocardial infarction (STEMI) is a common emergency room presentation.
  • Thrombotic thrombocytopenic purpura (TTP) rarely presents initially with myocardial injury or necrosis.

Observation:

  • A 48-year-old woman presented with STEMI, but her presentation was atypical.
  • She exhibited symptoms of microangiopathic hemolytic anemia, thrombocytopenia, acute kidney injury, and fluctuating mental status.

Findings:

  • Diagnosis of TTP was confirmed by low ADAMTS-13 activity.
  • Treatment with plasmapheresis and intravenous steroids led to a full recovery.

Implications:

  • This case highlights the importance of considering rare etiologies, like TTP, in atypical STEMI presentations.
  • Rapid, comprehensive evaluation integrating all clinical data is essential for identifying unusual disease entities and ensuring optimal patient outcomes.

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