Continuing Warfarin Protective After Diagnosis of Dementia

Share this content:
Continuing Warfarin Protective After Diagnosis of Dementia
Continuing Warfarin Protective After Diagnosis of Dementia

FRIDAY, Jan. 6, 2017 (HealthDay News) -- For veterans receiving warfarin for nonvalvular atrial fibrillation, continuing warfarin after a diagnosis of dementia is associated with a protective effect in prevention of stroke and mortality, according to a study published online Dec. 30 in the Journal of the American Geriatrics Society.

Ariela R. Orkaby, M.D., from the Veterans Affairs Boston Healthcare System, and colleagues conducted a retrospective cohort study involving 2,572 veterans aged 65 years and older who had been receiving warfarin for nonvalvular atrial fibrillation for six months or more and were newly diagnosed with dementia. Participants were followed for up to four years.

The researchers found that 405 individuals (16 percent) persisted on warfarin therapy after a diagnosis of dementia. Warfarin had a significant protective effect in prevention of ischemic stroke, major bleeding, and all-cause mortality (hazard ratios [HRs], 0.64 [95 percent confidence interval (CI), 0.46 to 0.89; P = 0.008], 0.72 [95 percent CI, 0.55 to 0.94; P = 0.02], and 0.66 [95 percent CI, 0.55 to 0.79; P < 0.001], respectively). The protective effect of continuing warfarin persisted in prevention of stroke and mortality in propensity-matched analyses (HRs, 0.74 [95 percent CI, 0.54 to 0.996; P = 0.047] and 0.72 [95 percent CI, 0.60 to 0.87; P < 0.001], respectively); there was no statistically significant decrease in the risk of major bleeding (HR, 0.78 [95 percent CI, 0.61 to 1.01; P = 0.06]).

"Discontinuing warfarin after a diagnosis of dementia is associated with a significant increase in stroke and mortality," the authors write.

Full Text (subscription or payment may be required)

Share this content:

is free, fast, and customized just for you!

Already a member?

Sign In Now »


Sign up for myCME e-newsletters


Drug Lookup

Browse drugs by: BrandGenericDisease

Trending Activities

All Professions

More in Home

FDA Approves Kinase Inhibitor for Treatment of AML

FDA Approves Kinase Inhibitor for Treatment of AML

Midostaurin, in combination with chemotherapy, treats acute myeloid leukemia in adults

Enzyme Replacement Drug OK'd for Form of Batten Disease

Enzyme Replacement Drug OK'd for Form of Batten ...

Brineura will be used to treat children with late infantile neuronal ceroid lipofuscinosis type 2 Batten

is free, fast, and customized just for you!

Already a member?

Sign In Now »