Thu.Nov 23, 2023

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Defective Bile Acid Signaling Promotes Vascular Dysfunction, Supporting a Role for G?Protein Bile Acid Receptor 1/Farnesoid X Receptor Agonism and Statins in the Treatment of Nonalcoholic Fatty Liver Disease

Journal of the American Heart Association

Journal of the American Heart Association, Volume 12, Issue 23 , December 5, 2023. BackgroundPatients with nonalcoholic fatty liver disease are at increased risk to develop atherosclerotic cardiovascular diseases. FXR and GPBAR1 are 2 bile acid–activated receptors exploited in the treatment of nonalcoholic fatty liver disease: whether dual GPBAR1/FXR agonists synergize with statins in the treatment of the liver and cardiovascular components of nonalcoholic fatty liver disease is unknown.Methods

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Loss of sodium current caused by a Brugada syndrome-associated variant is determined by patient-specific genetic background

HeartRhythm

Brugada syndrome (BrS) is an inherited cardiac arrhythmogenic disease that predisposes patients to sudden cardiac death. It is associated with mutations in SCN5A, encoding the cardiac sodium channel alpha subunit (NaV1.5). BrS-related mutations have incomplete penetrance and variable expressivity within families.

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Albuminuria in cardiac ATTR amyloidosis: prevalence, progression and prognostic importance

European Journal of Heart Failure

Abstract Aims Transthyretin cardiac amyloidosis (ATTR-CA) is an infiltrative cardiomyopathy that commonly presents with concomitant chronic kidney disease. Albuminuria is common in heart failure and associated with worse outcomes, but its prevalence and relationship to outcome in ATTR-CA remains unclear. Methods and Results A total of 1181 patients with ATTR-CA were studied (mean age 78.1±7.9 years; 1022[86.5%] male; median eGFR 59ml/min/1.73m 2 [IQR: 47–74]).

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A novel method for septal reduction therapy by 3D-guided transvenous intra-septal pulse field ablation

HeartRhythm

Pulsed field ablation (PFA) is a nonthermal method to achieve selective cell death with little inflammation response. However, there are no reports in septal reduction therapy (SRT).

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Clinical presentation, shock severity and mortality in patients with de novo versus acute?on?chronic heart failure?related cardiogenic shock

European Journal of Heart Failure

Clinical presentation, shock severity and mortality in patients with de novo versus acute-on-chronic heart failure-related cardiogenic shock. ACHF-CS, acute-on-chronic failure-related cardiogenic shock; CI, confidence interval; DNHF-CS, de novo heart failure-related cardiogenic shock; HR, hazard ratio. Aims Heart failure-related cardiogenic shock (HF-CS) accounts for a significant proportion of CS cases.

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Point-by-Point Pulsed Field Ablation Using a Multimodality Generator and a Contact Force–Sensing Ablation Catheter: Comparison With Radiofrequency Ablation in a Remapped Chronic Swine Heart

Circulation: Arrhythmia and Electrophysiology

Circulation: Arrhythmia and Electrophysiology, Ahead of Print. Background:Pulsed field ablation (PFA) has emerged as an alternative to radiofrequency ablation. However, data on focal point-by-point PFA are scarce. The aim of this study was to compare lesion durability and collateral damage between focally delivered unipolar/biphasic PFA versus radiofrequency in swine.Methods:Eighteen swine were randomized to low-dose PFA, high-dose PFA, and radiofrequency using a multimodality generator.

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An Aspirin-Free Versus Dual Antiplatelet Strategy for Coronary Stenting: STOPDAPT-3 Randomized Trial

Circulation

Circulation, Ahead of Print. BACKGROUND:Bleeding rates on dual antiplatelet therapy (DAPT) within 1 month after percutaneous coronary intervention (PCI) remain high in clinical practice, particularly in patients with acute coronary syndrome or high bleeding risk. Aspirin-free strategy might result in lower bleeding early after PCI without increasing cardiovascular events, but its efficacy and safety have not yet been proven in randomized trials.METHODS:We randomly assigned 6002 patients with acu

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Frequent Premature Atrial Contractions Lead to Adverse Atrial Remodeling and Atrial Fibrillation in a Swine Model

Circulation

Circulation, Ahead of Print. BACKGROUND:Frequent premature atrial complexes (PACs) are associated with future incident atrial fibrillation (AF), but whether PACs contribute to development of AF through adverse atrial remodeling has not been studied. This study aimed to explore the effect of frequent PACs from different sites on atrial remodeling in a swine model.METHODS:Forty swine underwent baseline electrophysiologic studies and echocardiography followed by pacemaker implantations and paced PA

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USP28 Serves as a Key Suppressor of Mitochondrial Morphofunctional Defects and Cardiac Dysfunction in the Diabetic Heart

Circulation

Circulation, Ahead of Print. BACKGROUND:The majority of people with diabetes are susceptible to cardiac dysfunction and heart failure, and conventional drug therapy cannot correct diabetic cardiomyopathy progression. Herein, we assessed the potential role and therapeutic value of USP28 (ubiquitin-specific protease 28) on the metabolic vulnerability of diabetic cardiomyopathy.METHODS:The type 2 diabetes mouse model was established using db/db leptin receptor–deficient mice and high-fat diet/strep