Publications by authors named "Brian Olshansky"

Aims: Congestive heart failure (CHF) is often coexisting in patients with atrial fibrillation (AF), but the clinical epidemiology of this association is still uncertain. We aimed to analyse characteristics, management, and outcomes of patients with and without CHF, in a real-world cohort of patients with AF.

Methods And Results: From the GLORIA-AF Registry Phase III, which enrolled adults with a recent diagnosis of AF and a CHA2DS2-VASc ≥ 1, we analysed factors associated with CHF at baseline, the association of CHF with use of oral anticoagulants (OAC) and other treatments, and the risk of adverse outcomes during a 3-year follow-up.

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Falls pose concerns for the management and prognosis of patients with atrial fibrillation (AF). Epidemiological data on patients with AF who fall are limited. From the prospective global GLORIA-AF Registry Phase III study, we evaluated patients with a recent diagnosis of AF and CHADS-VASc score ≥ 1 according to previous history of falling at baseline.

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Background: Discontinuation of oral anticoagulants (OACs) in patients with atrial fibrillation (AF) at high risk of bleeding is commonly seen.

Objective: This study aimed to explore risk factors leading to OAC discontinuation and the impact on clinical events in patients with AF at high bleeding risk.

Methods: From the prospective, multicenter Global Registry on Long-Term Antithrombotic Treatment in Patients With Atrial Fibrillation study, we analyzed, by OAC discontinuation, all-cause death, cardiovascular (CV) death, major adverse CV events (MACEs), thromboembolism (TE), major bleeding, stroke, and myocardial infarction during follow-up.

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Background: Older age increases the risk of thromboembolism (TE) and major bleeding in atrial fibrillation (AF) patients, but limited evidence exists regarding the older population (age ≥ 80) especially from different global regions. Data on benefits of oral anticoagulants in these very old individuals are also limited.

Methods: From the prospective, multicenter Global Registry on Long-Term Antithrombotic Treatment in Patients with Atrial Fibrillation registry, we analysed by age all-cause death, cardiovascular death, major adverse cardiovascular events (MACE), TE, major bleeding, stroke, and myocardial infarction (MI) over 3-years follow-up.

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Aims: Whether the adoption of CHA2DS2-VA score, the sex-independent version of the CHA2DS2-VASc score is beneficial for stratifying risk of stroke in patients with atrial fibrillation (AF) remains controversial.

Methods And Results: Utilizing the data from the global, multicentre and prospective GLORIA-AF Registry Phase III, we compared the performances of CHA2DS2-VA and CHA2DS2-VASc scores in stratifying the risk of ischaemic stroke and thromboembolism (TE), and compared the risk of ischaemic stroke and TE, and the use of oral anticoagulants in male and female patients with AF. A total of 21 260 AF patients with available data were included in the analysis (mean age 70.

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Introduction: Despite oral anticoagulation (AC), male patients with atrial fibrillation (AF) have worse inpatient outcomes versus females. This disparity is not well studied in Black Americans. Our objective was to evaluate in-patient outcomes of Black males hospitalized with AF versus Black females for whom AC was utilized.

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Background: Hypertrophic cardiomyopathy (HCM) predisposes patients to cardiac arrest (CA). While established major risk factors may warrant the need for primary prevention by implantable cardioverter-defibrillator (ICD), it is unknown if specific electrocardiographic predictors are associated with CA. Our objective was to determine the risk of CA in patients with HCM based on the presence of identified electrocardiographic arrhythmias and conduction disorders.

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Renal function, assessed by creatinine clearance (CrCl), affects the efficacy and safety of oral anticoagulant (OAC) therapy in patients with atrial fibrillation (AF). To investigate the association between CrCl and the risk of clinical adverse events and compare the safety profiles of vitamin K antagonists (VKA) and non-vitamin K antagonist oral anticoagulants (NOAC). Patients with newly diagnosed AF (< 3 months before baseline visit) were collected from the prospective Global Registry on Long-Term Oral Anti-Thrombotic Treatment in Patients with Atrial Fibrillation (GLORIA-AF) registry Phase III.

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Background: Polypharmacy (i.e., treatment with ≥ 5 drugs) is common in patients with atrial fibrillation (AF) and has been associated with suboptimal management and worse outcomes.

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Background: Patients with atrial fibrillation (AF) who suffered a previous stroke are at increased risk of recurrent thromboembolic events and other major outcomes. The impact of the number of stroke episodes on the natural history of patients with AF is still unclear.

Methods And Results: Using data from the international, multicenter, and prospective GLORIA-AF (Global Registry on Long-Term Oral Antithrombotic Treatment in Patients With Atrial Fibrillation) Registry Phase III, we categorized patients with a recent diagnosis of non-valvular AF according to the number of previous strokes (either 0, 1, or ≥2 episodes).

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Background: Anticoagulation therapy in patients with atrial fibrillation (AF) and concomitant cancer can be challenging due to the significantly increased risk of both embolism and bleeding. Moreover, the benefits and risks of vitamin K antagonists (VKA, eg. warfarin) versus non-vitamin K antagonist oral anticoagulants (NOACs) in such patients are less well understood.

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Aims: Recent evidence supports non-class cardioprotective effects of metoprolol against neutrophil-mediated ischemia-reperfusion injury during exacerbated inflammation. Whether metoprolol exerts direct anti-inflammatory effect on cardiomyocytes is unknown. Accordingly, we aimed to investigate the direct anti-inflammatory effects of metoprolol in a cellular model of human induced pluripotent stem cell-derived cardiomyocytes (hiCMs) and to explore the role of β-arrestin2 (β-ARR2) biased agonism signaling pathway.

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Cardiac arrhythmias are commonly noted in patients during infections with and recovery from COVID-19. Arrhythmic manifestations span the spectrum of innocuous and benign to life-threatening and deadly. Various pathophysiological mechanisms have been proposed.

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Article Synopsis
  • Clinical decision-making regarding syncope is complex due to its varied presentations and risk factors, which can lead to physician errors.
  • AI technologies like machine learning, deep learning, and natural language processing can help identify patterns in syncope risk factors and clinical outcomes, improving diagnosis and predicting adverse events.
  • The article discusses the potential advantages and challenges of using AI in syncope research and education, questioning whether AI can surpass human performance in these areas.
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  • A study explored the risk of thromboembolic events in patients with atrial fibrillation (AF) who were on oral anticoagulants (OACs) by analyzing different patient profiles.
  • Researchers used data from over 22,000 patients in the GLORIA-AF registry and identified five distinct patient profiles, including factors like age, obesity, and hypertension.
  • Among the profiles, "frailty" had the highest risk for thromboembolic events and death, while a profile classified as "young and obese" showed the lowest risk, highlighting the need for tailored risk assessment in AF patients.
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Aims: Atrial fibrillation (AF) and diabetes mellitus (DM) are both associated with adverse clinical events, but the associations have not been fully elucidated, particularly with concomitant insulin use. This study aimed to analyse the associations between adverse events and DM, as well as adverse events and sole insulin use.

Materials And Methods: Our analysis included individuals with AF from the prospective Global Registry on Long-Term Oral Anti-Thrombotic Treatment in Patients with Atrial Fibrillation (GLORIA-AF) registry with 3-year follow-up.

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  • The LIVE-LQTS study aimed to investigate whether vigorous exercise increases the risk of ventricular arrhythmias in individuals with congenital long QT syndrome (LQTS) by tracking participants' activity and health events over three years.
  • Among 1,413 participants, 52% engaged in vigorous exercise, and the study found similar rates of serious cardiac events (2.6% in vigorous exercisers vs. 2.7% in non-vigorous) suggesting that vigorous exercise may not significantly increase risk for these individuals.
  • The results had a hazard ratio of 0.97, indicating that vigorous exercisers experienced similar or potentially lower rates of adverse events than those who did not exercise vigorously, providing insight into safe exercise practices for LQ
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  • A study assessed whether the heart rate score (HRSc) after pacemaker (PM) implantation can predict new atrial high-rate episodes (AHREs) in patients with sinus node dysfunction (SND).
  • Researchers evaluated 130 patients over nearly 49 months, finding that a higher HRSc (≥80%) was linked to an increased risk of AHREs compared to lower scores.
  • The results suggest that HRSc ≥80% may serve as a useful predictor of AHREs, potentially influencing treatment decisions for patients with SND.
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Article Synopsis
  • * Data from over 14,000 AF patients were analyzed, revealing that after three years, there were significant rates of major cardiovascular events (MACE) and death among those on different treatment regimens.
  • * Results showed that patients using combination therapy (beta-blockers and digoxin) had a higher risk of MACE and all-cause death compared to those using only beta-blockers.
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Aims: The pathophysiology of orthostatic hypotension (OH), a common clinical condition, associated with adverse outcomes, is incompletely understood. We examined the relationship between OH and circulating endostatin, an endogenous angiogenesis inhibitor with antitumour effects proposed to be involved in blood pressure (BP) regulation.

Methods And Results: We compared endostatin levels in 146 patients with OH and 150 controls.

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Article Synopsis
  • Clinical complexity in patients with atrial fibrillation (AF) is associated with factors like aging and multiple health issues, which complicate treatment and outcomes.
  • * A study of over 32,000 AF patients identified six distinct patient phenotypes based on comorbidities, finding that those with more complex health profiles received different treatments and had varied risks of major health events.
  • *The results indicated that patients with high complexity and cardiometabolic issues had significantly higher risks of death and major cardiovascular events compared to those with fewer health issues.
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  • The study examined the relationship between chronic obstructive pulmonary disease (COPD) and atrial fibrillation (AF) using data from the global GLORIA-AF registry, focusing on how COPD affects treatment and outcomes.
  • Out of 36,263 patients, 6.2% had COPD, with varying prevalence in different regions; factors like age, gender, and smoking were linked to COPD presence.
  • COPD patients experienced different medication patterns and significantly worse health outcomes, including higher risks of death, major adverse cardiovascular events (MACEs), and major bleeding compared to patients without COPD.
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