Journal of the American College of Cardiology
Audio Summaries

Impact of Left Ventricular Unloading on Hemodynamics and Stunning in Complex PCI: A CHIP-BCIS3 Substudy

Aug 5, 2026

This study aimed to determine whether elective left ventricular (LV) unloading using a microaxial flow pump (mAFP) during high-risk percutaneous coronary intervention (PCI) could reduce hemodynamic instability and myocardial stunning in patients with severe LV systolic dysfunction. The results indicated that while mAFP reduced the need for inotropes, it was associated with a higher incidence of loss of pulse pressure and did not prevent myocardial stunning. Overall, the findings suggest that LV unloading may not provide the anticipated benefits in this patient population.

Cross-Ancestry Proteogenomic Analyses Identified New Therapeutic Insights for Ischemic Heart Disease

Jul 29, 2026

The authors aimed to identify novel drug targets for ischemic heart disease (IHD) by conducting cross-ancestry proteogenomic analyses using cis-acting single nucleotide polymorphisms (cis-pQTLs) in diverse populations. Their study found 54 unique proteins associated with IHD etiology, with significant insights into lipid-driven chronic inflammation as a contributing factor. The results suggest that future treatment strategies should focus on targeting multiple lipid and inflammation pathways to enhance IHD management beyond current statin therapies.

Health Status Outcomes 7 Years After Transcatheter or Surgical Aortic Valve Replacement in Low-Surgical Risk Patients With Aortic Stenosis

Jul 29, 2026

This study aimed to compare long-term health status outcomes between transcatheter aortic valve replacement (TAVR) and surgical aortic valve replacement (SAVR) in low-surgical risk patients with severe aortic stenosis. While both treatments significantly improved health status over seven years, TAVR showed superior outcomes in the first two years, after which the health status scores were similar between the two groups. Ultimately, approximately 60% of patients in both groups reported excellent health outcomes by the seven-year mark.

Clinical Considerations in Management of Hypertrophic Cardiomyopathy in Pregnancy: JACC State-of-the-Art Review

Jul 29, 2026

This review addresses the management of hypertrophic cardiomyopathy (HCM) during pregnancy, focusing on the unique hemodynamic and arrhythmic challenges it poses. The authors aim to provide guidance on risk stratification, monitoring, and multidisciplinary care to optimize maternal and fetal outcomes, particularly in women with severe obstruction or systolic dysfunction. They emphasize the importance of tailored management strategies based on individual risk assessments to ensure safe pregnancies for women with HCM.

Compound Exposure to Extreme Heat and Substantial Landscape Fire-Sourced Air Pollution on Cardiovascular Mortality

Jul 29, 2026

The authors aimed to investigate whether combined exposure to extreme heat and substantial fire-sourced air pollution increases the risk of cardiovascular disease (CVD) mortality beyond the risks associated with each hazard individually. Their multicountry study found that this compound exposure was linked to an 11.5% increase in cardiovascular mortality, with particularly significant effects observed for heart failure. The results suggest that treating these environmental hazards as independent may lead to an underestimation of their combined impact on short-term cardiovascular health.

Timing, Translation, and Preparedness: Lessons Learned From COVID-19 Anticoagulation in Noncritically Ill Hospitalized Patients

Jul 29, 2026

The authors aimed to investigate how evidence regarding anticoagulation for noncritically ill hospitalized COVID-19 patients was generated and translated into clinical guidelines, utilizing randomized controlled trials (RCTs) as a case study. They found that while therapeutic-dose anticoagulation was associated with reduced odds of organ support or death, delays in coordination and data sharing impeded timely translation of evidence into practice. The study emphasizes the need for improved research networks and data synthesis to enhance responsiveness during public health emergencies.

Refining the Role of Beta-Blockers in Cardiovascular Medicine

Jul 22, 2026

This review aims to refine the understanding and application of beta-blockers in cardiovascular medicine, questioning their routine use in certain conditions such as myocardial infarction with preserved ejection fraction and stable coronary artery disease. The authors highlight the need for individualized treatment approaches based on specific patient factors, while also identifying gaps in current evidence that warrant further investigation.

Long-Term Exposure to PM_2.5 Constituents and Coronary Heart Disease Risk in China

Jul 15, 2026

This study investigates the relationship between long-term exposure to specific constituents of PM_2.5 and the risk of coronary heart disease (CHD) and acute myocardial infarction (AMI) in a large cohort of adults in China. The findings indicate that exposure to elemental carbon, organic carbon, and nitrate is associated with increased incidence and mortality from CHD and AMI, while the effects of sulfate are less consistent. The results underscore the importance of targeting specific air pollution constituents in public health strategies to mitigate cardiovascular risks.

Aspirin Withdrawal in Patients With Coronary Artery Disease

Jul 15, 2026

The authors investigate the implications of aspirin withdrawal in patients with coronary artery disease (CAD), particularly those who also require oral anticoagulation (OAC). They aim to determine whether a strategy of temporarily using dual antiplatelet therapy followed by aspirin withdrawal can reduce bleeding risks without compromising ischemic protection, while also considering various patient-specific factors and clinical settings. The paper reviews existing evidence and guidelines to provide practical recommendations for implementing this strategy in CAD management.

The Role of Coronary Artery Calcium in Statin Eligibility Based on the American Heart Association's PREVENT Calculator: Insights From MESA

Jul 15, 2026

The authors aimed to assess the impact of coronary artery calcium (CAC) on cardiovascular event rates among different statin eligibility groups and 10-year ASCVD risk categories using the PREVENT calculator. Their findings indicate that CAC is particularly valuable in refining treatment decisions when risk is borderline, while also suggesting that the absence of CAC should not deter statin therapy in individuals already meeting treatment thresholds. Overall, the study highlights the role of CAC in enhancing risk assessment and guiding preventive strategies in cardiovascular care.