The international normalized ratio (INR) recommendations below are per guidelines from the American College of Chest Physicians (2008).[1, 2]
For cerebrovascular event, the recommendations are as follows:
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)
Duration of therapy: Long-term
AF plus ischemic stroke or TIA: Long-term
Venous sinus thrombosis: 12 months