Unloading with Impella for 30 Minutes Before PCI Associated with Reduced Infarct Size in STEMI Patients
Results of a new per-protocol analysis of the ST-segment Elevation Myocardial Infarction Door-To-Unload (STEMI DTU) pilot trial data show significantly reduced infarct size in patients who received left ventricular (LV) unloading with Impella CP for 30 minutes prior to their percutaneous coronary intervention (PCI) compared to patients who received LV unloading followed by immediate PCI. The data were presented today during the 2022 Transcatheter Cardiovascular Therapeutics (TCT) conference in Boston by Navin K. Kapur, MD, executive director of the Cardiovascular Center for Research and Innovation (CVCRI) at Tufts Medical Center and the principal investigator for the STEMI DTU pivotal randomized controlled trial.
This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20220917005003/en/
The STEMI DTU pilot trial demonstrated for the first time that LV unloading using the Impella CP® heart pump with a 30-minute delay before reperfusion is safe and feasible. (Graphic: Business Wire)
The new analysis compared infarct size in 32 patients from the STEMI DTU pilot trial who met all inclusion and exclusion criteria. All patients experienced an anterior STEMI and completed one of two treatment protocols – LV unloading with Impella CP followed by immediate PCI (n=15) or LV unloading with Impella CP for 30 minutes prior to delayed PCI (n=17). Cardiac magnetic resonance (CMR) imaging performed three-to-five days after PCI was used to determine infarct size (IS) normalized to the area at risk (AAR). Results showed that the infarct size normalized to the area at risk was significantly lower in the delayed PCI group compared to the immediate PCI group (IS/AAR: 47±16 vs. 60±16, p=0.02), which translates to a 22% relative and 13% absolute reduction in IS/AAR.
“Results from this analysis are early, but promising, indicating that in STEMI patients, unloading the left ventricle with Impella CP for 30 minutes and delaying PCI could potentially help improve patient outcomes by reducing damage to the heart muscle and helping prevent heart failure,” said Dr. Kapur.
Myocardial damage can lead to heart failure. Every 5% increase in infarct size is associated with a 20% increase in relative hazard for all-cause mortality or hospitalization for heart failure within one year after a primary PCI (JACC, 2016). Coronary artery disease is the number one cause of death in the United States and 47% of women and 36% of men over the age of 45 will die within five years of their first heart attack (Circulation, 2019).
The STEMI DTU pilot study demonstrated for the first time that LV unloading using Impella CP with a 30-minute delay before reperfusion via PCI is feasible, safe and not associated with an increase in infarct size. The pilot study led to the STEMI DTU pivotal randomized controlled trial, which began in 2019 and is actively enrolling patients. The pivotal trial is testing the hypothesis that compared to PCI alone, LV unloading for 30 minutes prior to PCI can reduce myocardial damage and future heart failure-related events due to a heart attack.
ABOUT IMPELLA HEART PUMPS
The Impella 2.5® and Impella CP® with SmartAssist® are U.S. FDA approved to treat certain advanced heart failure patients undergoing elective and urgent percutaneous coronary interventions (PCI), such as stenting or balloon angioplasty, to reopen blocked coronary arteries.
Impella 2.5, Impella CP®, Impella CP with SmartAssist, Impella 5.0®, Impella LD®, and Impella 5.5® with SmartAssist® are U.S. FDA approved to treat heart attack or cardiomyopathy patients in cardiogenic shock and have the unique ability to enable native heart recovery, allowing patients to return home with their own heart.
Impella heart pumps are not FDA approved for use in STEMI patients without cardiogenic shock.
ABOUT ABIOMED
Based in Danvers, Massachusetts, USA, Abiomed (Nasdaq: ABMD) is a leading provider of medical technology that provides circulatory support and oxygenation. Our products are designed to enable the heart to rest and recover by improving blood flow and/or provide sufficient oxygenation to those in respiratory failure. For additional information, please visit abiomed.com.
FORWARD-LOOKING STATEMENTS
Any forward-looking statements are subject to risks and uncertainties such as those described in Abiomed's periodic reports on file with the Securities and Exchange Commission. Actual results may differ materially from anticipated results.
To view this piece of content from cts.businesswire.com, please give your consent at the top of this page.
View source version on businesswire.com: https://www.businesswire.com/news/home/20220917005003/en/
Contact information
Media Contact:
Jenny Leary
Associate Director, U.S. Communications
+1 (978) 882-8491
jleary@abiomed.com
Investor Contact:
Todd Trapp
Executive Vice President and Chief Financial Officer
+1 (978) 646-1680
ttrapp@abiomed.com
About Business Wire
For more than 50 years, Business Wire has been the global leader in press release distribution and regulatory disclosure.
Subscribe to releases from Business Wire
Subscribe to all the latest releases from Business Wire by registering your e-mail address below. You can unsubscribe at any time.
Latest releases from Business Wire
BitGo Secures OCC Approval to Convert to Federally Chartered National Trust Bank13.12.2025 03:10:00 EET | Press release
BitGo Holdings, Inc. (“BitGo”), the digital asset infrastructure company, today announced that the Office of the Comptroller of the Currency (“OCC”) approved its application to convert BitGo Trust Company, Inc., a South Dakota-chartered trust company, to a national bank named BitGo Bank & Trust, National Association (N.A.). With today’s OCC approval of its conversion, BitGo’s Trust Company subsidiary is now operating as BitGo Bank & Trust, National Association (N.A.). BitGo Bank & Trust, N.A. will operate under a single, uniform federal supervisory regime, enabling it to deliver the clarity, governance, and regulatory certainty institutions expect from a federally regulated fiduciary. This approval reinforces BitGo’s position as an institutional foundation for the modern financial system, combining bank-level oversight with the security, compliance, and scalability that define BitGo’s infrastructure. Under the national bank charter, and subject to applicable law and OCC requirements, B
FIA, Formula 1 Group and All 11 Race Teams Officially Sign the Ninth Concorde Agreement, Securing Strength and Stability for the Sport in Pivotal Five-Year Agreement12.12.2025 18:10:00 EET | Press release
The Fédération Internationale de l'Automobile (FIA), the global governing body for motor sport and the federation for mobility organisations worldwide, and Formula 1 Group, the Commercial Rights Holder, have today announced the signing of the Concorde Governance Agreement, a crucial contract defining the regulatory framework and governance terms of the FIA Formula One World Championship until 2030. This follows the announcement in March that the 2026 Commercial Concorde Agreement had been signed by all the teams and Formula 1 Group. Together, these agreements constitute the ninth Concorde Agreement, representing a major step forward in the professionalisation and global development of the sport. First introduced in 1981, the Concorde Agreements are designed to promote sporting fairness, technological innovation and operational excellence, and align all key stakeholders around a shared vision for structured governance and continued growth of the sport. Each iteration of the Concorde Agr
Anabranch Capital Management, LP supports relisting of SmartCraft ASA to Nasdaq Stockholm12.12.2025 17:26:00 EET | Press release
Reference is made to the stock exchange announcement by SmartCraft ASA ("SmartCraft" or the "Company") on 1 December 2025 regarding the contemplated relisting of SmartCraft from Euronext Oslo Børs to Nasdaq Stockholm (the "Relisting") and the announcement of a cross-border merger to effect the Relisting. Funds managed by Anabranch Capital Management, LP (“Anabranch”) intend to vote in favour of the merger plan resolved by the boards of SmartCraft and its Swedish wholly owned subsidiary, SmartCraft Group AB (publ), to effect the Relisting at the Company's extraordinary general meeting planned for January 2025 (the "EGM"). Anabranch intends to vote with all Anabranch shares held at the Record Date for the EGM in favour of the relisting effected by the merger plan. Funds managed by Anabranch currently hold approximately 15.9 million shares in SmartCraft. Disclaimer: The views expressed are those of the authors and Anabranch Capital Management, LP as of the date referenced and are subject
Mohammed Ben Sulayem Re-Elected as President of the FIA12.12.2025 16:49:00 EET | Press release
The Fédération Internationale de l’Automobile (FIA), the global governing body for motor sport and the federation for mobility organisations worldwide, today confirms that Mohammed Ben Sulayem has been re-elected as President of the FIA, following the election of his Presidential List by the General Assembly in Tashkent, Republic of Uzbekistan. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20251212213181/en/ President Mohammed Ben Sulayem now begins his second four-year term, having overseen a period of significant renewal and stabilisation for the organisation since his initial election in 2021. Over the past four years, the FIA has undergone a wide-ranging transformation, improving governance, operations and restoring the financial health of the federation. These changes have strengthened the FIA’s position as the world’s governing body for motorsport and the leading authority on safe, sustainable, and affordable mobility.
Capcom’s All-new IP PRAGMATA to Launch on April 24, 2026!12.12.2025 16:00:00 EET | Press release
Capcom Co., Ltd. (TOKYO:9697) today announced that sci-fi action-adventure game PRAGMATA, a completely new IP, is scheduled for release on April 24, 2026. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20251212791950/en/ PRAGMATA Key Art PRAGMATA is a new type of sci-fi action-adventure game mixing puzzle and action elements. In the game, which takes place on the moon in a near-future world, the spacesuit-clad Hugh and android girl Diana cooperate while fighting their way back to Earth. By bringing the title to Nintendo Switch™ 2 in addition to PlayStation®5 system, Xbox Series X|S and PC, Capcom looks to further advance its multi-platform strategy and expand its user base. Moreover, a playable demo of the game will be released first on PC starting today, December 12, to further convey the appeal of the title. The company hopes that players look forward to PRAGMATA, which has already garnered acclaim for its playable demos at
In our pressroom you can read all our latest releases, find our press contacts, images, documents and other relevant information about us.
Visit our pressroom