First join author Marc Dweck and Associate Editor Victoria Delgado as they discuss the article "Effect of Denosumab or Alendronic Acid on the Progression of Aortic Stenosis: A Double-Blind Randomized Controlled Trial." Then, join authors Torbjørn Omland and Geeta Gulati as they discuss the article "Prevention of Cardiac Dysfunction During Adjuvant Breast Cancer Therapy (PRADA) Extended Follow-Up of a 2×2 Factorial, Randomized, Placebo-Controlled, Double-Blind Clinical Trial of Candesartan and Metoprolol." Dr. Carolyn Lam: Welcome to Circulation On The Run. Your weekly podcast summary and backstage pass to the journal and its editors. We're your co-hosts. I'm Dr. Carolyn Lam Associate Editor from the National Heart Center and Duke National University of Singapore. Dr. Greg Hundley: I'm Dr. Greg Hundley, Associate Editor, Director of the Pauley Heart Center, VCU Health in Richmond, Virginia. Dr. Carolyn Lam: Hooray, it's another double feature week! And guess what, these two papers are two randomized control trials. One looking at progression of aortic stenosis and the other, looking at a prevention of cardiac dysfunction following adjuvant breast cancer therapies. Dr. Carolyn Lam: So, very interesting two papers coming right up. But Greg, why don't you start by highlighting some of your favorite papers from today's issue. Dr. Greg Hundley: You bet Carolyn. Dr. Greg Hundley: So my first study was conducted by Dr. Gabriela Trifan and colleagues from University of Illinois who performed a meta analysis of major studies that compare the efficacy and safety of dual anti-platelet therapy versus monotherapy for secondary prevention of recurrent stroke or transient ischemic attack in those previously experiencing minor non cardioembolic stroke. And their primary outcomes were stroke and the composite of stroke, TIA, acute coronary syndrome and death of all cause. And the safety outcome was major hemorrhage. Dr. Carolyn Lam: Oh, okay. Very important study. What did they find? Dr. Greg Hundley: Right Carolyn. So the analysis included 27,358 patients. And compared with monotherapy, dual anti-platelet therapy reduced the risk of recurrent stroke and the composite outcome, but increased the risk of major bleeding. And in subgroup analysis at less than or equal to 30 days, dual anti-platelet therapy increased the risk of hemorrhage relative to monotherapy. In sensitivity analyses, the risk for hemorrhage with less than or equal to 30 days of dual anti-platelet therapy, after excluding the combination of aspirin plus Ticagrelor, was comparable to monotherapy. However, the risk of stroke recurrence and composite outcomes in the subgroup and sensitivity analyses remained decreased compared to monotherapy. Dr. Greg Hundley: And so Carolyn, the take-home message from this paper is that dual anti-platelet therapy decreases the risk of recurrent stroke and composite events compared with monotherapy. But, dual anti-platelet therapy increases the risk of major hemorrhage, except if the treatment is limited to 30 days and does not include the combination of aspirin plus Ticagrelor. Dr. Carolyn Lam: Ah, thanks for that last take home message. Thank you. Dr. Carolyn Lam: Well, the paper I'm going to tell you about is the first to examine the role of epicardial fat derived extracellular vesicles in the pathogenesis of atrial fibrillation. And this comes from Dr. Leor from Sheba Medical Center, Tel Aviv University in Israel and his colleagues who collected epicardial fat specimens from patients with and without atrial fibrillation during elective heart surgery. Dr. Carolyn Lam: Epicardial fat samples were grown as organ cultures and the culture medium was collected every two days. And the authors then isolated and purify these epicardial fat extracellular vesicles from the culture medium. Dr. Carolyn Lam: They found that epicardial fat extracellular vesicles of patients with atrial fibrillation had unique pro-inflammatory, profibrotic and proarrhythmic pr