Abbott Receives U.S. FDA Clearance for New Cardiac Mapping System to Improve How Doctors Treat Abnormal Heart Rhythms

- Abbott (NYSE: ABT) today announced it has received clearance from the U.S. Food and Drug Administration for the EnSite™ X EP System with EnSite Omnipolar Technology (OT), a new cardiac mapping platform available in the U.S. and across Europe that is designed to help physicians better treat abnormal heart rhythms, also known as cardiac arrhythmias. Designed with input from electrophysiologists from around the world, the system creates highly detailed three-dimensional maps of the heart to help physicians identify and then treat areas of the heart where abnormal rhythms originate.

"More patients than ever before are benefitting from ablation to treat abnormal heart rhythms, and Abbott's new EnSite X System with EnSite OT, utilizing Advisor HD Grid catheter, embodies the latest innovation available to support the treatment of complex and challenging cardiac arrhythmias," said Amin Al-Ahmad , M.D., a clinical cardiac electrophysiologist with Texas Cardiac Arrhythmia at St. David's Medical Center in Austin, Texas . "To continue improving outcomes for our patients, we need a system with speed, stability and accuracy. Abbott has provided us with a system that not only supports safe and effective treatment, but enhances the accuracy of maps, allowing for a clearer understanding of what is going on in the heart and what areas need to be targeted with ablation to treat arrythmias."

This system includes Abbott's proprietary EnSite OT, which leverages the Advisor HD Grid Catheter to provide true electrograms (EGMs) regardless of how the catheter is oriented within the heart. With the ability to sample EGMs in 360 degrees, the EnSite X EP System with EnSite OT can map 1 million points in the heart and provide more precise location of treatment areas. Offering the best of both unipolar and bipolar measurement principles, the system provides mapping without compromise.

Millions of Americans are affected by abnormal heart rhythms caused by breakdowns in the electrical pathways of the heart. Left untreated, these breakdowns can lead to erratic heartbeats or cause the heart to beat too fast or too slow, which can dramatically impact a patient's health. Atrial fibrillation (AFib), the most common arrhythmia the EnSite X EP System with EnSite OT can help treat, is a condition in which the heart's chambers are out of sync, causing them to beat in a rapid and chaotic fashion. In some cases, untreated arrythmias like AFib may eventually lead to heart failure or stroke.

Increasingly, physicians are turning to cardiac ablation to treat cardiac arrhythmias because –unlike medication – the therapy treats the condition at the source by disrupting the area of the heart generating abnormal heart beats. Cardiac mapping is critical to successful ablation therapy because highly precise, accurate and detailed images of the heart allow physicians to determine the best location to deploy therapy safely and effectively.

"As ablation therapy is increasingly used for patients battling cardiac arrhythmias, new, innovative and advanced cardiac mapping and imaging tools are essential to help physicians provide the best outcomes for their patients," said Mike Pederson , senior vice president, electrophysiology Abbott . "We developed the EnSite X System with EnSite OT to enhance the utility of our unique Advisor HD Grid catheter and allow doctors to quickly and accurately create real-time, stable, three-dimensional models of the heart. These models provide a way to precisely identify areas that are causing problems, so physicians can better treat those abnormal heart rhythms, and preserve healthy tissue."

Reimagining the Potential of Cardiac Mapping
In designing the EnSite X System with EnSite OT, Abbott created the platform to be upgradable via new software, ensuring physicians consistently have access to the latest technology without the need for entirely new systems. In addition, EnSite X EP System with EnSite OT is the first mapping system that allows physicians to choose between two methods of cardiac visualization.

Traditional mapping systems use either unipolar or bipolar measurement principles. While unipolar measurements have multiple advantages, including direction and speed, bipolar measurements provide local signal measuring to pinpoint areas of concern. The EnSite X System with EnSite OT brings the best of both measurement principles together to maximize data collection.

About Cardiac Ablation
When physicians use catheter ablation to treat cardiac arrhythmias, long flexible tools — called catheters — are inserted into the heart to study the arrhythmia and to deliver radio frequency energy. Heat generated from the radio frequency energy disrupts the cells that are creating the abnormal heart rhythm. As a result, this tissue is no longer capable of conducting or sustaining the arrhythmia.

For U.S. important safety information on the EnSite X System with EnSite OT system, visit https://www.cardiovascular.abbott/us/en/hcp/products/electrophysiology/mapping-systems/ensite-x/indications-safety-warnings.html .

About Abbott
Abbott is a global healthcare leader that helps people live more fully at all stages of life. Our portfolio of life-changing technologies spans the spectrum of healthcare, with leading businesses and products in diagnostics, medical devices, nutritionals and branded generic medicines. Our 109,000 colleagues serve people in more than 160 countries.

Connect with us at www.abbott.com , on LinkedIn at www.linkedin.com/company/abbott-/ , on Facebook at www.facebook.com/Abbott and on Twitter @AbbottNews and @AbbottGlobal.

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Abbott Announces New Partnerships and Programs to Advance its Diversity in Clinical Trials Initiative

Abbott Announces New Partnerships and Programs to Advance its Diversity in Clinical Trials Initiative

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  • Abbott's Diversity in Clinical Trials initiative aligns with the company's continued focus for greater health equity, expanded access, affordability and removing barriers to life-saving technology and innovation
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Abbott (NYSE: ABT) today announced a series of new programs within its multi-million-dollar initiative to increase diversity in clinical trials and improve care among under-represented populations. The new additions to Abbott's Diversity in Clinical Trials initiative build on the partnerships, scholarships, and the focus on diversified participants in the company's own clinical trials during the initiative's first year.

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Q1 2025 Highlights:

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Medtronic will host a video webcast at 7:00 a.m. CDT on May 21, 2025 , to discuss results for its fourth quarter and full fiscal year 2025. The webcast can be accessed at https://investorrelations.medtronic.com .

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Medtronic Affera pulsed field ablation technologies continue to demonstrate promising evidence for atrial fibrillation patients

Medtronic Affera pulsed field ablation technologies continue to demonstrate promising evidence for atrial fibrillation patients

  • One-year clinical trial data for the next-generation, investigational, Sphere-360™ single-shot PFA catheter show impressive safety, performance, and efficiency results for paroxysmal Afib
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Medtronic plc (NYSE: MDT), a global leader in healthcare technology, today announced positive clinical outcomes from two studies in atrial fibrillation (AFib) patients treated with the Affera™ family of technologies, including the next-generation Sphere-360™ single-shot pulsed field ablation (PFA) catheter and the groundbreaking Sphere-9™ combination mapping and dual-energy focal PFA catheter. Data were presented in High Impact Science Sessions at the Heart Rhythm Society 2025 Annual Meeting in San Diego ; the Sphere-360 study was simultaneously published in the Heart Rhythm Journal .

(PRNewsfoto/Medtronic plc)

Sphere-360 Study Safety and Performance

Sphere-360 is an investigational, first-of-its-kind, single-shot PFA mapping and ablation catheter for treatment of paroxysmal atrial fibrillation (PAF). Results for Sphere-360 at one year, in a prospective, single-arm, multi-center trial performed in European centers, demonstrated freedom from arrhythmia recurrence in 88% of patients, with chronically durable pulmonary vein isolation (PVI) in 98% of targeted veins and no reported safety events in a sub-group treated with the most optimized waveform. The Sphere-360 catheter has a large, conformable lattice design that can be modified into various shapes, is seamlessly integrated with the Affera Mapping and Ablation System and utilizes an 8.5 Fr sheath – the smallest in any single-shot PFA technology.

"The Affera technology is a sophisticated ecosystem, including an advanced, intuitive mapping system and catheters that are seamlessly integrated to offer treatment options for different cardiac arrhythmias. It is encouraging to see the promising results for Sphere-360, which can easily create circumferential lesions without the need for catheter rotation," said Vivek Reddy , M.D., Director of Cardiac Arrhythmia Services for the Mount Sinai Health System in New York City . "The study results showed Sphere-360 has a promising safety and performance profile with zero serious adverse events observed. Upon approval, Sphere-360 will be a valuable addition to Medtronic's Affera system, which has been a game changer for Afib treatment and physician workflow."

Medtronic intends to begin its U.S. pivotal trial for the Sphere-360 catheter later this calendar year. Worldwide, Sphere-360 is currently investigational and not approved for sale or distribution.

Sphere-9 for Linear Ablation

Additionally, in a sub-analysis from the Sphere Per-AF IDE study , results demonstrated that the Sphere-9 catheter can be used safely and effectively to create linear lesions in persistent AF patients. Linear ablation is often used in conjunction with PVI to improve the chances of restoring a normal heart rhythm without recurrence in persistent AF patients. The Sphere Per-AF IDE study evaluated the safety, efficacy and efficiency of Affera and Sphere-9 in persistent AF and led to the FDA approval of Affera in October 2024 .

"True to our Medtronic mission for patients and legacy of innovation, we are delivering our best-in-class technologies to physicians and improving care for AFib patients, and we are not slowing down," said Rebecca Seidel , president of the Cardiac Ablation Solutions business at Medtronic, which is part of the Cardiovascular portfolio. "These results signify another step forward and energize us as we continue to earn and build our leadership position in electrophysiology every day."

Medtronic is the only company with two PFA offerings for physicians and patients. The PulseSelect™ Pulsed Field Ablation System offers physicians a safe, single-shot solution for pulmonary vein isolation (PVI) and is now available in more than 30 countries. The Affera system together with the Sphere-9 catheter enables physician treatment flexibility with its wide area focal design and 9mm lattice tip that can used with an 8.5Fr sheath. Affera is available in Europe , Australia and New Zealand , with global expansion ongoing.

AFib is one of the most common and undertreated heart rhythm disorders, affecting more than 60 million people worldwide. 1 Afib is a progressive disease, often beginning as paroxysmal AFib (presents intermittently) and progressing to persistent (lasts for more than 7+ days without stopping). As the disease progresses, the risk of serious complications including heart failure, stroke and risk of death increases 2-5 .

For more information on the Affera PFA system and the Sphere-9 catheter, visit Medtronic.com.

About Medtronic

Bold thinking. Bolder actions. We are Medtronic. Medtronic plc, headquartered in Galway , Ireland , is the leading global healthcare technology company that boldly attacks the most challenging health problems facing humanity by searching out and finding solutions. Our Mission — to alleviate pain, restore health, and extend life — unites a global team of 95,000+ passionate people across more than 150 countries. Our technologies and therapies treat 70 health conditions and include cardiac devices, surgical robotics, insulin pumps, surgical tools, patient monitoring systems, and more. Powered by our diverse knowledge, insatiable curiosity, and desire to help all those who need it, we deliver innovative technologies that transform the lives of two people every second, every hour, every day. Expect more from us as we empower insight-driven care, experiences that put people first, and better outcomes for our world. In everything we do, we are engineering the extraordinary. For more information on Medtronic (NYSE: MDT), visit www.Medtronic.com and follow Medtronic on LinkedIn .

Any forward-looking statements are subject to risks and uncertainties such as those described in Medtronic's periodic reports on file with the Securities and Exchange Commission. Actual results may differ materially from anticipated results.

References

  1. Roth GA, Mensah GA, Johnson CO et al. Global Burden of Cardiovascular Diseases and Risk Factors, 1990-2019: Update From the GBD 2019 Study. J Am Coll Cardiol 2020;76:2982-3021.
  2. Miyasaka Y, Barnes ME, Bailey KR, et al. Mortality trends in patients diagnosed with first atrial fibrillation: a 21-year community-based study. J Am Coll Cardiol 2007;49:986-92.
  3. Hindricks G, Potpara T, Dagres N, et al. 2020 ESC Guidelines for the diagnosis and management of atrial fibrillation developed in collaboration with the European Association of Cardio-Thoracic Surgery (EACTS). Eur Heart J 2020.
  4. Wolf PA , Abbott RD, Kannel WB. Atrial fibrillation as an independent risk factor for stroke: the Framingham Study. Stroke 1991;22:983-8.
  5. Lubitz SA, Moser C, Sullivan L, et al. Atrial fibrillation patterns and risks of subsequent stroke, heart failure, or death in the community. J Am Heart Assoc 2013;2:e000126

Dr. Reddy is a paid consultant for Medtronic.

Contacts:
Leslie Williamson
Public Relations
+1-612-227-5099

Ryan Weispfenning
Investor Relations
+1-763-505-4626

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SOURCE Medtronic plc

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