Publications by authors named "Bahit M"

Aims: In the EMPACT-MI trial, empagliflozin reduced heart failure (HF) hospitalizations but not mortality in acute myocardial infarction (MI). Contemporary reports of clinical event rates with and without type 2 diabetes mellitus (T2DM) in acute MI trials are sparse. The treatment effect of empagliflozin in those with and without T2DM in acute MI is unknown.

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Background: Secondary stroke prevention in patients with atrial fibrillation (AF) is one of the fastest growing areas in the field of cerebrovascular diseases. This Scientific statement from the World Stroke Organization Brain & Heart Task Force provides a critical analysis of the strength of current evidence this topic, highlights areas of current controversy, identifies knowledge gaps, and proposes priorities for future research.

Methods: We select topics with the highest clinical relevance and perform a systematic search to answer specific practical questions.

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Aims: Intravenous (IV) therapies have transformed the management of various cardiovascular conditions in ambulatory patients. However, uptake of these therapies in ambulatory care settings has several barriers. In this systematic scoping review, we aimed to identify the barriers and facilitators that influence the implementation of current IV therapies in ambulatory settings.

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Background: Following an acute myocardial infarction (AMI), patients remain at risk for subsequent cardiovascular (CV) events. In the AEGIS-II trial, CSL112, a human apolipoprotein A-I derived from plasma that enhances cholesterol efflux, did not significantly reduce the first occurrence of CV death, myocardial infarction (MI), or stroke through 90 days compared with placebo. However, an analysis involving only the first event may not capture the totality of the clinical impact of an intervention because patients may experience multiple events.

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Background And Aims: In the AEGIS-II trial (NCT03473223), CSL112, a human apolipoprotein A1 derived from plasma that increases cholesterol efflux capacity, did not significantly reduce the risk of the primary endpoint through 90 days vs. placebo after acute myocardial infarction (MI). Nevertheless, given the well-established relationship between higher low-density lipoprotein cholesterol (LDL-C) and plaque burden, as well as greater risk reductions seen with PCSK9 inhibitors in patients with baseline LDL-C ≥ 100 mg/dL on statin therapy, the efficacy of CSL112 may be influenced by baseline LDL-C.

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Chronic Chagas cardiomyopathy (CCC) has unique pathogenic and clinical features with worse prognosis than other causes of heart failure (HF), despite the fact that patients with CCC are often younger and have fewer comorbidities. Patients with CCC were not adequately represented in any of the landmark HF studies that support current treatment guidelines. PARACHUTE-HF (Prevention And Reduction of Adverse outcomes in Chagasic Heart failUre Trial Evaluation) is an active-controlled, randomized, phase IV trial designed to evaluate the effect of sacubitril/valsartan 200 mg twice daily vs enalapril 10 mg twice daily added to standard of care treatment for HF.

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Aims: Reverse ventricular remodelling, defined as a decrease in left ventricular end-systolic volume indexed to body surface area (LVESVI) or an increase in left ventricular ejection fraction (LVEF), is associated with improved clinical outcomes in patients with heart failure with reduced ejection fraction (HFrEF). However, the underlying pathophysiological mechanisms remain unclear.

Methods And Results: We evaluated paired core-lab assessed echocardiograms and measurements of 92 biomarkers at baseline and 8 months thereafter in 419 participants with HFrEF.

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Cardiovascular diseases (CVDs) are responsible for approximately 35% of all deaths in women. In 2019, the global age-standardized CVD prevalence and mortality of women were 6,403 per 100,000 and 204 per 100,000, respectively. Although the age- and population-adjusted prevalence has decreased globally, opposite trends are evident in regions of socioeconomic deprivation.

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Article Synopsis
  • * The study involved over 18,000 patients who were randomly assigned to receive either CSL112 or a placebo, showing that CSL112 resulted in a numerical decrease in rates of cardiovascular death and recurrent MIs over 1 year.
  • * While CSL112 did not significantly meet the primary endpoint goals, the results suggest it may help reduce the risk of heart-related complications, indicating a potential benefit of apoA-I in managing cholesterol and plaque stability in at-risk patients.
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  • Empagliflozin, a medication tested in the EMPACT-MI trial, showed promise in reducing heart failure (HF) hospitalizations but did not impact overall mortality when administered within two weeks post-acute myocardial infarction (AMI).
  • In the study of over 6,500 patients, worsening left ventricular ejection fraction (LVEF) and congestion significantly increased the risk of death and HF hospitalizations.
  • The drug effectively lowered the risk for HF hospitalizations regardless of the patients' LVEF status or congestion, and its safety profile remained consistent across different patient groups.
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Background: Cardiovascular events frequently recur after acute myocardial infarction, and low cholesterol efflux - a process mediated by apolipoprotein A1, which is the main protein in high-density lipoprotein - has been associated with an increased risk of cardiovascular events. CSL112 is human apolipoprotein A1 derived from plasma that increases cholesterol efflux capacity. Whether infusions of CSL112 can reduce the risk of recurrent cardiovascular events after acute myocardial infarction is unclear.

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Article Synopsis
  • Empagliflozin is known to improve cardiovascular outcomes in various patient groups, but its safety and effectiveness in those who have experienced an acute myocardial infarction were previously unclear.
  • In a study involving 6522 patients at risk for heart failure after a heart attack, participants were given either empagliflozin or a placebo, with their health monitored over about 18 months.
  • The results showed that empagliflozin did not significantly reduce the risk of hospitalization for heart failure or death compared to placebo, though it did show some potential benefits regarding hospitalizations specifically for heart failure.
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Article Synopsis
  • * In the EMPACT-MI trial, 6,522 patients were randomly assigned to receive either empagliflozin or placebo, with the results showing a significant difference in HF events after a median follow-up of 17.9 months.
  • * The study also noted that patients taking empagliflozin required fewer additional heart failure medications after discharge, indicating a broader benefit in managing heart failure risks.
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The mechanism underlying thrombus formation in acute coronary syndrome (ACS) involves both platelets and thrombin. While both pathways are targeted in acute care, platelet inhibition has been predominantly administered in the chronic phase, yet thrombin plays a key role in platelet activation and fibrin formation. Among ACS patients, there is also a persistent chronic increase in thrombin generation, which is associated with a higher rate of adverse events.

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Article Synopsis
  • Adherence to long-term medical therapy is crucial for improving outcomes in patients after acute coronary syndrome (ACS), with studies indicating that adherence is often moderate to low, particularly declining within the first year post-discharge.* -
  • Research identified 58 studies revealing that nearly 30% of patients stopped one or more medications within 90 days of an ACS event, with factors influencing adherence divided into patient-related, healthcare system-related, and disease-related categories.* -
  • Enhanced patient education and early follow-up by healthcare providers can improve medication adherence, which in turn is associated with lower rates of major adverse cardiovascular events.*
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Rate control is fundamental in the treatment of patients with atrial fibrillation (AF). The independent association of heart rate with outcomes and range of heart rate associated with best outcomes remains uncertain. We assessed the relationship between heart rate and clinical outcomes in patients with persistent or permanent AF enrolled in the randomized, double-blind ARISTOTLE trial.

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Article Synopsis
  • - The World Stroke Organization launched the BEAT initiative to enhance collaboration between cardiologists and stroke physicians at major healthcare facilities, focusing on atrial fibrillation (AF) and poststroke cardiovascular complications.
  • - The pilot program included 10 sites across 8 countries and aimed to establish clinical pathways, regular meetings, and integrative roles within stroke teams, successfully achieving objectives in 9 out of 10 sites.
  • - Challenges included limited access to certain medications and diagnostic tools, but the initiative led to a more consistent approach in diagnosis and treatment, indicating potential for future programs to improve stroke care.
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Aim: Vericiguat significantly reduced the primary composite outcome of heart failure (HF) hospitalization or cardiovascular death in the VICTORIA trial. It is unknown if these outcome benefits are related to reverse left ventricular (LV) remodelling with vericiguat in patients with HF with reduced ejection fraction (HFrEF). The aim of this study was to compare the effects of vericiguat versus placebo on LV structure and function after 8 months of therapy in patients with HFrEF.

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Importance: Data are limited regarding the risk of cerebrovascular ischemic events and major bleeding in patients with atrial fibrillation (AF) and recent acute coronary syndrome (ACS) and/or percutaneous coronary intervention (PCI).

Objective: Determine the efficacy and safety of apixaban or vitamin K antagonists (VKA) and aspirin or placebo according to prior stroke, transient ischemic attack (TIA), or thromboembolism (TE).

Design, Setting, And Participants: In this prospective, multicenter, 2-by-2 factorial, randomized clinical trial, post hoc parallel analyses were performed to compare randomized treatment regimens according to presence or absence of prior stroke/TIA/TE using Cox proportional hazards models.

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Background: A proportion of patients with embolic stroke of undetermined source have silent atrial fibrillation (AF) or develop AF after the initial evaluation. Better understanding of the risk for development of AF is critical to implement optimal monitoring strategies with the goal of preventing recurrent stroke attributable to underlying AF. The RE-SPECT ESUS trial (Randomized, Double-Blind Evaluation in Secondary Stroke Prevention Comparing the Efficacy and Safety of the Oral Thrombin Inhibitor Dabigatran Etexilate Versus Acetylsalicylic Acid in Patients With Embolic Stroke of Undetermined Source) provides an opportunity to assess predictors for developing AF and associated recurrent stroke.

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Aims: We evaluated the relation between baseline and new-onset atrial fibrillation (AF) and outcomes, and assessed whether vericiguat modified the likelihood of new-onset AF in patients with worsening heart failure (HF) with reduced ejection fraction in VICTORIA.

Methods And Results: Of 5050 patients randomized, 5010 with recorded AF status at baseline were analysed. Patients were classified into three groups: no known AF (n = 2661, 53%), history of AF alone (n = 992, 20%), and AF on randomization electrocardiogram (n = 1357, 27%).

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Objectives: Growth differentiation factor 15 (GDF-15) is a biomarker independently associated with bleeding and death in anticoagulated patients with atrial fibrillation (AF). GDF-15 is also used as one component in the more precise biomarker-based ABC (age, biomarkers, clinical history)-AF-bleeding and ABC-AF-death risk scores. Data from large trials indicate a geographic variability in regard to overall outcomes, including bleeding and mortality risk.

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Background: In the AUGUSTUS trial (An Open-Label, 2×2 Factorial, Randomized Controlled, Clinical Trial to Evaluate the Safety of Apixaban Versus Vitamin K Antagonist and Aspirin Versus Aspirin Placebo in Patients With Atrial Fibrillation and Acute Coronary Syndrome or Percutaneous Coronary Intervention), apixaban resulted in less bleeding and fewer hospitalizations than vitamin K antagonists, and aspirin caused more bleeding than placebo in patients with atrial fibrillation and acute coronary syndrome or percutaneous coronary intervention treated with a P2Y inhibitor. We evaluated the risk-benefit balance of antithrombotic therapy according to kidney function.

Methods: In 4456 patients, the CKD-EPI (Chronic Kidney Disease Epidemiology Collaboration) formula was used to calculate baseline estimated glomerular filtration rate (eGFR).

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