Echocardiographic Assessment of the Effect of Impella on Biventricular Function

Echocardiographic Assessment of the Effect of Impella on Biventricular Function

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.

This is a single-center, single-arm, prospective observational study designed to evaluate the effects of Impella 5.5 on left ventricular unloading and biventricular function in patients with end-stage heart failure requiring temporary mechanical circulatory support.

Echocardiographic assessments will be performed at three time points: prior to Impella implantation (baseline), immediately after device initiation intraoperatively, and during postoperative follow-up up to Day 14. Measurements will include left and right ventricular global longitudinal strain, myocardial work, and standard echocardiographic parameters such as left ventricular ejection fraction, ventricular volumes, and right ventricular functional indices.

Hemodynamic parameters, including arterial blood pressure, central venous pressure, pulmonary artery pressure, cardiac output, and mixed venous oxygen saturation, will also be collected. The vasoactive inotropic score will be calculated to evaluate changes in pharmacologic support.

This study is observational in nature and does not alter clinical management. Additional echocardiographic imaging may be obtained for research purposes in conjunction with standard of care procedures.

Inclusion Criteria:

1. Adult patients over 18 years old
2. Require Impella 5.5 implantation

Exclusion Criteria:

1. Patients' inability to provide consent for themselves (including that patients' lack of understanding the research)
2. Any patients who are deemed at higher-than-normal risk for complications secondary to echocardiography, such as dysphagia or esophageal pathology