In this study, the investigators examine whether aspirin or warfarin is useful for atrial fibrillation patients with chronic kidney disease.
randomised open labelled prospective study
We enroll patients with CHADS2 score 1 non-valvular AF with chronic kidney disease, and analyze all thromboembolic event or major bleeding event during follow-up period. Warfarin group take dose adjusted warfarin (target INR 2.0-3.0) and aspirin group take aspirin 100mg daly.
Thromboembolic events: Ischemic stroke or systemic arterial occlusion Major bleeding: gastrointestinal bleeding or intracranial bleeding (code 430, code 431, code 432 by ICD-9-CM codes)
-> Only the first event of each case will be used for the analysis
- Warfarin (Coumadin®)Drug
Other Names: Coumadin ARM 1: Kind: Experimental Label: warfarin
- Aspirin Drug
ARM 1: Kind: Experimental Label: aspirin
- Allocation: Randomized
- Masking: Open Label
- Purpose: Prevention
- Endpoint: Safety/Efficacy Study
- Intervention: Parallel Assignment
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