In this Deep Dive, Editor-in-Chief Dr. Harlan Krumholz explores a pragmatic, randomized crossover trial testing whether in-home HEPA filtration can reduce blood pressure in adults living near high-traffic roadways. The findings offer early insights into how targeted environmental interventions may influence cardiovascular risk—especially among individuals with elevated baseline systolic blood pressure.

In this episode of JACC Deep Dive, Dr. Harlan Krumholz explores new insights from a post hoc analysis of the MASTER DAPT trial, highlighting the real-world burden of ischemic and bleeding events in high bleeding risk patients after PCI. By examining recurrent—not just first—events, the study sheds light on how abbreviated dual antiplatelet therapy (DAPT) impacts total clinical outcomes. Key findings include reduced bleeding without increased ischemic risk and a notable clustering of ischemic events following bleeding. This analysis advances the conversation around patient-centered endpoints and the evolving science of recurrent event modeling in cardiology.

In this episode of JACC Deep Dive, KACC Editor-in-Chief Harlan M. Krumholz, MD, SM, FACC, explores a post hoc analysis of the HELIOS-B trial, which examined whether echocardiographic parameters can track treatment response in transthyretin amyloid cardiomyopathy (ATTR-CM) patients treated with vutrisiran. The study found that changes in cardiac function correlated with clinical outcomes, suggesting a role for serial imaging in personalized care. Behind the scenes, reviewers were particularly intrigued by the potential of echocardiographic markers—especially global longitudinal strain—as surrogate endpoints, while also noting the exploratory nature of the findings and the need for further validation.