General population8
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A risk factor approach to stroke risk assessment recommended, using the CHA2DS2VASc score to initially identify people at “low stroke risk” (score = 0 in men or 1 in women) who should not be offered OAC
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OAC is recommended for stroke prevention in people with AF with CHA2DS2VASc ≥2 in men or ≥3 in women
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In people who are eligible for OAC, DOACs are recommended in preference to VKAs (excluding people with mechanical heart valves or mitral stenosis)
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A structured risk-score-based bleeding risk assessment (such as the HAS-BLED) is recommended to identify nonmodifiable and address modifiable bleeding risk factors
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Stroke and bleeding risk reassessment is recommended at periodic intervals to inform treatment decisions and address potentially modifiable bleeding risk factors
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Clinical pattern of AF (ie, first detected, paroxysmal, persistent, or permanent) should not condition the indication to OAC use
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Advanced CKD (15-29 mL/min/1.73 m2) |
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Commonly used stroke and bleeding risk assessment scores did not include people with advanced CKD in validation cohorts, and predictive performance is poor10
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There is little randomized data on DOAC use in advanced CKD, and treatment decisions in people with declining kidney function is challenging
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Apixaban may be used down to a CrCl of 25 mL/min based on the inclusion criteria of the ARISTOTLE trial and subgroup analysis50
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Observational cohort data suggests rivaroxaban may efficacious and safe when used in CrCl <30 mL/min compared with VKA use51
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Kidney failure (eGFR <15 mL/min/1.73 m2) |
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Stroke and bleeding risk are both disproportionately high in kidney failure
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The Dialysis Risk Score13 may be used to identify people with kidney failure who may derive net clinical benefit from OAC
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VKAs should only be used in select people who may derive substantial benefit without significant bleeding risk. Meta-analyses of observational data report increased major bleeding risk without significant reduction in ischemic stroke or mortality risk.2
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Apixaban and rivaroxaban may be used in kidney failure based on limited data suggesting equivocal or reduced bleeding risk compared with VKAs.3,4 Due to underpowered trial data, efficacy data for stroke risk reduction remains outstanding.
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