The sedate uptake of pulsed field ablation (PFA) in Europe failed to presage the enthusiasm that drove the technology’s extraordinarily rapid adoption in the U.S. in 2024. Used to treat atrial fibrillation, PFA received its first U.S. FDA approval in Dec. 2023. At the time, Clarivate estimated that PFA had 7% of the global cardiac ablation market. By year-end 2024, it had 20% and Boston Scientific Corp. projected that PFA would represent up to half of the market by the close of 2025.

U.S. Medicare coverage of renal denervation (RDN) for uncontrolled hypertension may soon be a fact of life if the manufacturers of these systems have their way. CMS opened a national coverage analysis for RDN, but as is routine practice recently, the agency is asking for comment before posting even a draft coverage memo for this technology.

Timing is everything. Just days after confirming a pause in the U.S. rollout of its Varipulse pulsed field ablation (PFA) catheter, Johnson & Johnson’s electrophysiology program received an epic reprieve from European regulators who granted the company’s dual-energy Thermacool Smarttouch SF catheter CE mark.

Researchers from The George Washington University and Northwestern University filed for protection of a bioresorbable, transparent, microelectrode array (MEA) technology that they believe offers unique advantages.

Johnson & Johnson halted the limited rollout of its Varipulse pulsed field ablation system on Jan. 5 to “investigate the root causes of four reported neurovascular events in the U.S. external evaluation.” So far, just 130 cases have been completed in the U.S. since the company received U.S. FDA approval in November for use in paroxysmal atrial fibrillation.

Fire1 Ltd. secured $120 million in financing to conduct a pivotal trial for its heart failure management system, Norm. The technology measures fluid in the inferior vena cava (IVC) and is expected to help the millions of people living with heart failure manage their condition and get their normal life back.

With more than 60 acquisitions completed in the last decade, Stryker Corp. shows little fear in committing to offers that allow it to obtain the companies and technologies that have driven its impressive growth in stock price – up from $92 in Jan. 2015 to $356.70 in Jan. 2025. Still, the definitive agreement to buy Inari Medical Inc. for $4.9 billion comes in at the upper range, along with the $4 billion acquisition of Wright Medical Group NV in 2020 ($5.4 billion with debt included), $3 billion for Vocera Communications in 2022, and $2.8 billion for Sage Products in 2016.

Medtronic plc received CE mark approval for its Harmony transcatheter pulmonary valve system to treat congenital heart disease patients with native or surgically repaired right ventricular outflow tract pulmonary regurgitation.

An artificial intelligence-based tool developed by researchers in the U.K. is helping doctors identify people at risk of developing atrial fibrillation. Data from the ongoing Find-AF pilot study shows that the algorithm can comb through patients’ electronic health records and detect red flags which could indicate whether they are at risk of developing the heart condition.

2024 was another banner year for GLP-1 receptor agonists (GLP-1RAs) on multiple fronts. They continued to expand into new indications, and provide their developers with both rich remuneration and scientific acclamation. There are now seven approved GLP-1RAs. Commercially, the most successful one so far is semaglutide, sold under the brand name Wegovy or Ozempic depending on the indication.