JACC focuses in again on Lipids in our June 3 issue, bringing critical insights into emerging targeted therapies. In the June 3 Deep Dive, editor-in-chief Harlan M. Krumholz, MD, SM, FACC, reviews the INTERASPIRE study by Ray et al, reviewing implications, key findings, and a thoughtful summary and analysis of the reviewer findings.

Go behind the scenes with JACC as editor-in-chief Harlan M. Krumholz, MD, SM, FACC, talks about what 's caught his attention in the latest JACC issue on amyloid. In this paper by Sheikh et al, the authors did a pre-specified exploratory analysis from the HELIOS-B trial, evaluating vutrisiran in patients with transthyretin amyloid cardiomyopathy (ATTR-CM). The study showed that vutrisiran helped preserve or improve functional capacity and quality of life over 30 months, with consistent benefits across both monotherapy and tefamidis-treated patients. Waterfall plots illustrated the full spectrum of individual patient responses, revealing meaningful improvements in many while underscoring variability in outcomes. The analysis emphasized this heterogeneity, supporting a move toward precision care in amyloidosis.

Join JACC Editor in Chief Harlan Krumholz, MD, SM, as he speaks about this ACC.25 presentation published in JACC. This fascinating study by Rohan Khera et al independently analyzed patient-level data from the SURMOUNT trials of tirzepatide for obesity. The study revealed striking individual variability in weight loss and metabolic response, even to a highly effective therapy—an insight powerfully illustrated through waterfall plots. Reviewers praised the transparent, sponsor-independent approach and the study’s contribution to precision medicine, though they noted it was descriptive rather than predictive, underscoring the need for future research to identify what drives differential treatment response.

This JACC Deep Dive in our May 13 issue highlights new findings from the SUMMIT CKD study, showing that terzepatide improves symptoms, function, and weight in patients with HFpEF and obesity—regardless of kidney function. The analysis also underscores the importance of using both creatinine and cystatin C to better assess kidney health. Reviewers praised the study’s methodological rigor and dual focus, while noting the need for larger, long-term trials to confirm renal outcomes.

In this JACC Deep Dive episode, Dr. Harlan Krumholz reviews the ADVANTAGE-AF trial, which evaluated pulse field ablation (PFA) as a treatment for persistent atrial fibrillation. The study demonstrated that PFA is a safe and effective approach, with strong symptomatic outcomes and a low complication rate, though questions remain about long-term durability and the need for more rigorous follow-up. PFA represents a promising innovation, but further randomized studies and extended monitoring will be essential to fully define its role in clinical practice.

In a Deep Dive in our May 13 issue, Editor-in-Chief Harlan Krumholz, MD, SM, FACC, discusses a study led by Barry Borlaug that investigates whether excess weight or metabolic dysfunction has a greater impact on heart failure with preserved ejection fraction (HFpEF). The findings showed that obesity—more than insulin resistance—was strongly associated with worse hemodynamic and functional outcomes. Reviewers praised the study's nuanced approach and use of invasive measures, while editorialists emphasized the ongoing importance of addressing both adiposity and metabolic health in HFpEF management.

In this JACC Deep Dive episode, Editor-in-Chief Dr. Harlan Krumholz discusses a major study on sudden cardiac arrest in young competitive athletes, highlighting survival rates, causes, and racial disparities. The study shows that survival improves dramatically with immediate AED use and has increased over time, emphasizing the need for widespread emergency preparedness and health equity efforts.. While progress has been made, ensuring universal access to CPR training and AEDs remains critical to saving lives.

In this in-depth analysis of the Altshock-2 trial (Study on Early Intra-aortic Balloon Pump Placement in Acute Decompensated Heart Failure Complicated by Cardiogenic Shock), Harlan M Krumholz, MD, FACC, goes deep into the study and its two related editorials. Listen here for this unique behind-the-scenes look at the review process, plus a thoughtful summary of the study and the two related editorials. All this content appears in JACC, in our special focus issue on cardiogenic shock.