PosterBACKGROUND: Anticoagulation is effective to prevent cardioembolism in patients with atrial fibrillation (AF) and prosthetic heart valves, but carries risk of potentially life-threatening intracerebral haemorrhage (ICH). The ideal international normalised ratio (INR) for Chinese patients on warfarin treatment is uncertain. We aimed to study the clinical and radiological characteristics of Chinese patients who developed acute ICH while on warfarin …published_or_final_versio