In Potential Stroke Patients on Warfarin, the International Normalized Ratio Predicts Ischemia

Conclusions: Sub-therapeutic INR and atrial fibrillation are strongly associated with ischemia in patients on warfarin presenting with acute neurologic symptoms. Ischemia is far less likely in patients with an INR of ≥2 and rare in those with an INR ≥3.6. This study shows that the INR value of a patient on warfarin can help stratify patients’ risk for acute ischemic stroke and guide further neurologic imaging and workup.Cerebrovasc Dis Extra 2017;7:111 –119
Source: Cerebrovascular Diseases Extra - Category: Neurology Source Type: research