NCT07534462 · University of Rochester
Echocardiographic Assessment of the Effect of Impella on Biventricular Function
What this study is about
The objective of this forward-looking observational study is to evaluate the effects of Impella 5.5 on biventricular function in adult patients with end-stage heart failure requiring temporary mechanical circulatory support. The study will assess changes in left and right ventricular global longitudinal strain and myocardial work, as well as additional echocardiographic and hemodynamic parameters.
View original scientific description
The objective of this prospective observational study is to evaluate the effects of Impella 5.5 on biventricular function in adult patients with end-stage heart failure requiring temporary mechanical circulatory support. The study will assess changes in left and right ventricular global longitudinal strain and myocardial work, as well as additional echocardiographic and hemodynamic parameters. Measurements will be obtained at baseline prior to Impella implantation, immediately after device initiation, and during postoperative follow-up up to Day 14. This study involves collection of echocardiographic imaging and clinical data, including additional imaging performed for research purposes.
Interventions
DIAGNOSTIC_TEST
Echocardiographic Assessment
Echocardiographic imaging will be performed at baseline prior to Impella implantation, immediately after device initiation, and during postoperative follow-up up to Day 14 to assess biventricular function.
Primary outcome measures
Mean Change from Baseline in Left Ventricular Global Longitudinal Strain (LV GLS)
Time frame: Baseline, immediately post-Impella initiation, and postoperative day up to Day 14
Left ventricular global longitudinal strain will be measured using speckle-tracking echocardiography from transesophageal and transthoracic images. LV endocardial borders are manually traced, and strain is calculated as the average peak systolic longitudinal strain across left ventricular segments. Values are expressed as percentage. More negative values indicate better myocardial function.
Mean Change from Baseline in Left Ventricular Myocardial Work (MW
Time frame: Baseline, immediately post-Impella initiation, and postoperative day up to Day14
Left ventricular myocardial work will be calculated using pressure-strain loop analysis derived from echocardiographic strain data combined with non-invasive blood pressure measurements using EchoPac software. Higher values indicate improved myocardial performance.
Mean Change from Baseline in Right Ventricular Global Longitudinal Strain (RV GLS)
Time frame: Baseline, immediately post-Impella initiation, and postoperative day up to Day 14
Right ventricular global longitudinal strain will be measured using speckle-tracking echocardiography from apical or transesophageal four-chamber views. RV free wall segments are analyzed and averaged to determine strain. Values are expressed as percentage. More negative values indicate better myocardial function.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Adult patients over 18 years old
- Require Impella 5.5 implantation
Exclusion criteria
- Patients' inability to provide consent for themselves (including that patients' lack of understanding the research)
- Any patients who are deemed at higher-than-normal risk for complications secondary to echocardiography, such as dysphagia or esophageal pathology
Where
- Rochester, New York
Collaborators
Johnson & Johnson
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Sep 9, 2026 · Source of record for eligibility and locations