Left Ventricular Thrombus With Silent Myocardial Infarction in a Patient With Factor V Leiden Mutation and High Factor VIII Levels: A Case Report.

Silent myocardial infarction (SMI) is a type of myocardial infarction that occurs in the absence of, or with, minimal symptoms, often leading to a delay in medical treatment. There is a lack of data regarding the incidence and/or prevalence of a left ventricular (LV) thrombus in those who have had an SMI, due to the rarity of such cases. We describe a case of an SMI with LV thrombus in an otherwise healthy young man, whose first presentation was with stroke-type symptoms and who was also later found to have a Factor V Leiden (FVL) mutation and raised factor VIII levels. Further research is needed to investigate the relationship between these haematological conditions and the risk of arterial thrombosis including stroke, SMI, and LV thrombus.