International Normalized Ratio (INR) Targets: Ischemic Stroke
The international normalized ratio (INR) recommendations below are per guidelines from the American College of Chest Physicians (2008). [1, 2]
Cerebrovascular event
For cerebrovascular event, the recommendations are as follows:
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INR target (range)
Atrial fibrillation (AF) plus ischemic stroke or transient ischemic attack (TIA): 2.5 (2.0-3.0) [3, 4, 5, 6, 7]
Venous sinus thrombosis: 2.5 (2.0-3.0)
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Duration of therapy: Long-term
AF plus ischemic stroke or TIA: Long-term
Venous sinus thrombosis: 12 months
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