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    Breaking News

    Study Shows Lower Risk of Death, Complications in Patients With PVADs

    Investigators obtained their data from the National Inpatient Sampling database.

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    Business Wire05.13.20
    A study of 21,848 non-emergent, high-risk patients who underwent percutaneous coronary intervention (PCI) with percutaneous ventricular assist devices (PVADs), including Impella, demonstrates the PVAD patients had a lower rate of mortality and complications than patients who underwent PCI with intra-aortic balloon pumps (IABPs). The study, by Al-khadra, et al., was published in Catheterization & Cardiovascular Interventions.
     
    In the analysis, the PVAD cohort was significantly sicker than the IABP cohort. PVAD patients were older and had higher rates of hypertension, diabetes, hyperlipidemia, prior PCI, prior coronary artery bypass graft surgery, anemia, chronic lung disease, liver disease, renal failure, and peripheral vascular disease.
     
    Despite the higher rates of comorbidities, when investigators used multivariate logistic regression (n=21,848) they determined, compared to the IABP patients, PVAD patients were associated with:
    • Lower in-hospital mortality (6.1 percent vs. 8.8 percent, p= <.001)
    • Lower vascular complications (4.3 percent vs. 7.5 percent, p=.046)
    • Lower cardiac complications (5.6 percent vs. 14.5 percent, p= <.001)
    • Lower respiratory complications (3.8 percent vs. 9.8 percent, p= <.001)
    • A similar rate of bleeding to IABP patients (2.7 percent vs. 2.8 percent, p=.581)
     
    Furthermore, propensity score matching (n=1,926) demonstrated that, compared to the IABP patients, PVAD patients had:
    • Lower in-hospital mortality (3.5 percent vs. 6.4 percent, p= <.012)
    • Lower vascular complications (3.4 percent vs. 6 percent, p=.017)
    • Lower cardiac complications (3.4 percent vs. 12.2 percent, p= <.001)
    • Lower respiratory complications (2.6 percent vs. 6.1 percent, p=.001)
    • A similar rate of bleeding to IABP patients (2.6 percent vs. 2.4 percent, p=.795)
     
    Investigators obtained their data from the National Inpatient Sampling (NIS) database, the largest all-payer inpatient care database in the United States. NIS is developed through a partnership with the Agency for Healthcare Research and Quality (AHRQ) and contains data on approximately 8 million Medicare and private payer hospital stays. The authors disclosed and described in detail the methods for the study population, patient and hospital characteristics and statistical analysis, including linear regression models and propensity score matching.
     
    “This analysis is another example of real-world data demonstrating improved outcomes for patients and reduced length of stay when PVADs are used,” said Perwaiz Meraj, M.D., one of the study’s authors and director of interventional cardiology at Zucker School of Medicine at Hofstra/Northwell, Northwell Health in Manhasset, N.Y. “The use of best practices, techniques and technologies can enable safer, more complete revascularization that improves patient outcomes and quality of life.”
     
    The Al-khadra, et al. publication also noted that PVAD patients had a shorter length of stay than IABP patients (four days vs. five days p= <.001). This finding is consistent with the PROTECT II randomized controlled trial and multiple other peer-reviewed studies, including the Maini, et al. publication in Expert Review of Pharmacoeconomics & Outcomes Research. Maini et al. appraises the findings and conclusions of six publications and found PVADs, specifically Impella 2.5, are associated with reduced hospital length of stay and are cost-effective when compared with IABP.
     
    “High-risk PCI patients often pose a challenge to the interventionalist due to patient comorbidities which drive worse outcomes,” said Cindy Grines, M.D., a study author and an interventional cardiologist and chief scientific officer at Northside Hospital Cardiovascular Institute in Atlanta. “This publication demonstrates the rationale for PVAD use during high-risk PCI. Left ventricular support maintains coronary perfusion during periods of transient hypotension during long or repeated inflations necessary to achieve complete revascularization.”
     
    The Al-khadra et al. study was conducted independently by physician-investigators and not funded or reviewed by Abiomed. Study sites are Cleveland Clinic, Detroit Medical Center, Beth Israel Deaconess Medical Center/ Harvard Medical School, MedStar Washington Hospital Center, St. John Hospital and Medical Center, Emory University, Zucker School of Medicine at Hofstra Northwell Health, Henry Ford Health System, Keele University and Royal Stoke University Hospital.
     
    The Impella heart pump is manufactured by Abiomed and is the most studied mechanical circulatory support device in the history of the U.S. Food and Drug Administration (FDA), with more than 14 years of FDA studies, real-world clinical data on more than 140,000 patients, and more than 650 peer-reviewed publications.
     
    ABOUT IMPELLA HEART PUMPS
    The Impella 2.5® and Impella CP® devices are U.S. FDA PMA approved to treat certain advanced heart failure patients undergoing elective and urgent percutaneous coronary interventions (PCI) such as stenting or balloon angioplasty, to re-open blocked coronary arteries. The Impella 2.5, Impella CP, Impella CP with SmartAssist®, Impella 5.0®, Impella LD®, and Impella 5.5™ with Smart Assist® are U.S. FDA approved heart pumps used 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. The Impella RP® is U.S. FDA approved to treat right heart failure or decompensation following left ventricular assist device implantation, myocardial infarction, heart transplant, or open-heart surgery. Impella is the most studied mechanical circulatory support device in the history of the FDA with more than 10 years of FDA studies, real world clinical data on more than 140,000 patients and more than 650 peer-reviewed publications.
     
    In Europe, the Impella 2.5, Impella CP and Impella CP with SmartAssist are CE marked for treatment of high-risk PCI and AMI cardiogenic shock patients for up to 5 days. Impella 5.0 and Impella LD are CE marked to treat heart attack or cardiomyopathy patients in cardiogenic shock for up to 10 days. The Impella 5.5™ with Smart Assist® is CE marked to treat heart attack or cardiomyopathy patients in cardiogenic shock for up to 30 days. The Impella RP is CE marked to treat right heart failure or decompensation following left ventricular assist device implantation, myocardial infarction, heart transplant, open-heart surgery, or refractory ventricular arrhythmia.
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