Abstract
Patient: Male, 80-year-oldFinal Diagnosis: Thrombotic thrombocyopenic purpura Symptoms: Altered mental status center dot dysarthria center dot GI bleeding center dot hypotensionMedication: -Clinical Procedure: Echocardiography center dot plasma exchange center dot renal replacement therapySpecialty: Cardiology center dot HematologyObjective: Rare diseaseBackground: Thrombotic thrombocytopenic purpura (TTP) is associated with widespread microvascular thrombosis, low platelet count, and hemolysis. Ticagrelor is a relatively new agent which functions as a reversible inhibitor of the P2Y12 receptor working to prevent platelet aggregation and is used with or without aspirin in patients with acute coronary syndrome to reduce the risk of myocardial infarction and stroke. We describe the case of an 80-year-old man with ischemic heart disease who developed this rare and potentially fatal adverse reac-tion known as TTP following treatment with ticagrelorCase Report: We report the case of an 80-year-old man who presented with an acute change in mental status 4 months after initiating ticagrelor following percutaneous coronary intervention. Laboratory testing on presentation revealed evidence of microangiopathic hemolytic anemia, thrombocytopenia, and elevated creatinine levels, suggestive of acute renal failure. The combination of his clinical symptoms and laboratory findings were concerning for TTP, likely secondary to ticagrelor use. The patient was treated with therapeutic plasma exchange, systemic steroids, and hemodialysis, which led to resolution of the hemolysis and recovery of renal function.Conclusions: Although the association between ticagrelor and TTP is rare, early recognition of this life-threatening compli-cation is essential to decrease morbidity and mortality associated with TTP. Since ticagrelor is now more com-monly used, it is important that clinicians be aware of this complication.