George Ntaios

George Ntaios

A conversation with George Ntaios, MD, MSc (ESO Stroke Medicine), PhD, Assistant Professor of Internal Medicine, Department of Medicine, University of Thessaly

Interviewed by Stephen Makin, PhD, Clinical Lecturer at Glasgow University

They will be discussing the paper, “Real-World Setting Comparison of Nonvitamin-K Antagonist Oral Anticoagulants Versus Vitamin-K Antagonists for Stroke Prevention in Atrial Fibrillation: A Systematic Review and Meta-Analysis,” being published in the September 2017 issue of Stroke.

Dr. Makin: Thank you for taking the time to talk to us.

Prof. Ntaios: Thank you for the invitation to discuss our study.

Dr. Makin: Could I begin by asking you to summarize your study and its findings?

Prof. Ntaios: We aimed to summarize all available evidence from high-quality real-world observational studies about the efficacy and safety of non-vitamin-K-oral-anticoagulants (NOACs) compared to vitamin-K-antagonists (VKAs) in patients with atrial fibrillation (AF). Based on 28 identified studies, we found that dabigatran, rivaroxaban and apixaban, as compared to VKAs, are associated with lower risk of intracranial haemorrhage and similar risk of ischemic stroke and ischemic stroke or systemic embolism; apixaban and dabigatran with lower risk of mortality; apixaban with fewer gastrointestinal and major haemorrhages; dabigatran and rivaroxaban with higher risk of gastrointestinal haemorrhage; and dabigatran and rivaroxaban with a similar rate of myocardial infarction.