A Novel Risk Stratification System for Ischemic Stroke in Japanese Patients With Non-Valvular Atrial Fibrillation
Ken Okumura, Hirofumi Tomita, Michikazu Nakai, Eitaro Kodani, Masaharu Akao, Shinya Suzuki, Kenshi Hayashi, Mitsuaki Sawano, Masahiko Goya, Takeshi Yamashita, Keiichi Fukuda, Hisashi Ogawa, Toyonobu Tsuda, Mitsuaki Isobe, Ḱazunori Toyoda, Yoshihiro Miyamoto, Hiroaki Miyata, Tomonori Okamura, Yusuke Sasahara
Abstract
BACKGROUND: Recently, identification of independent risk factors for ischemic stroke in Japanese non-valvular atrial fibrillation (NVAF) patients was made by analyzing the 5 major Japanese registries: J-RHYTHM Registry, Fushimi AF Registry, Shinken Database, Keio interhospital Cardiovascular Studies, and the Hokuriku-Plus AF Registry. METHODS AND RESULTS: -VASc scores (0.641; 95% CI=0.608-0.673, P=0.008). CONCLUSIONS: score may be useful for identifying Japanese NVAF patients at risk of ischemic stroke.