Abstract

Liver disease is associated with increased bleeding risk. The efficacy and safety of direct oral anticoagulants (DOACs) is a subject of contention in atrial fibrillation (AF) patients with liver disease. Electronic databases (PubMed, Embase, and Cochrane Library) were searched to retrieve studies on the efficacy and safety of DOACs versus warfarin in AF patients with liver disease from January 1980 to April 2020. A meta-analysis was conducted using a random-effects model. Six studies involving 41,859 patients were included. Compared with warfarin, DOACs demonstrated significant reduction in ischemic stroke (HR, 0.68; 95% CI (0.54-0.86)), major bleeding (0.74 (0.59-0.92)), and intracranial hemorrhage (ICH) (0.48 (0.40-0.58)), with no significant effect on gastrointestinal bleeding (P = 0.893) in AF patients with liver disease. Similar results were observed in regular-dose, reduced-dose, and active liver disease subgroups, albeit Asian patients had a slight reduction in major bleeding (P = 0.055). Furthermore, the pooled estimates of individual DOAC subgroups indicated that dabigatran and apixaban led to greater safety in major bleeding (P < 0.001), ICH (P < 0.001), and gastrointestinal bleeding (P < 0.005) in these patients. The same trends were observed in AF patients with cirrhosis. Our findings suggest that DOACs significantly reduce the risk of ischemic stroke, major bleeding, and ICH, with no significant effect on the risk of gastrointestinal bleeding in AF patients with liver disease compared with warfarin.

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