Öz Purpose: Ischemic stroke is a serious health condition in patients with young adults. This study aims to determine thrombophilia polymorphisms in young patients with ischemic stroke and associations with other risk factors. Materials and Methods: We evaluated 64 patients with ischemic stroke under 50 years old. Computerized Tomography Angiography, Holter Electrocardiography, Transthoracic Echocardiography, thrombophilia status, and Modifying Rankin Scale (MRS) in baseline and first month

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... ings were recorded. We analysed the association between thrombophilia status and short-term outcome in young adults with ischemic stroke. Results: 64 patients (38 male, 59.4%) were included in our study. The mean age of the patients were 42.486.73. The thrombophilia status showed that the most frequent polymorphism was MTHFRA1298T mutation (18.8% homozygous, 43.7% heterozygous). The second was MTHFRC677T and the third polymorphism was Factor 5 Leiden mutation, of 21.8% was homozygous and 34.4% was heterozygous mutation. 7.8% of the patients have atrial fibrillation, 17.2% of them have patent foramen ovale, and 7.8% have elevated pulmonary artery pressure (>30 mmHg). Thrombophilia status and PFO were not associated with IS in young adults. Conclusion: Young patients with ischemic stroke have several thrombophilial polymorphism; however, we did not detect any association with IS. Young patients with ischemic stroke have also many classic risk factors which should be treated appropriately. Patent foramen ovale is another remarkable pathology and more researches are needed to realize its relation with ischemic stroke in young adults.