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 between 7 and 14 days. This study involves collection of echocardiographic imaging and clinical data, including additional imaging performed for research purposes.
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Mean Change from Baseline in Left Ventricular Global Longitudinal Strain (LV GLS)
Timeframe: Baseline, immediately post-Impella initiation, and postoperative Day 7 to Day 14
Mean Change from Baseline in Left Ventricular Myocardial Work (MW
Timeframe: Baseline, immediately post-Impella initiation, and postoperative Day 7 to Day 14
Mean Change from Baseline in Right Ventricular Global Longitudinal Strain (RV GLS)
Timeframe: Baseline, immediately post-Impella initiation, and postoperative Day 7 to Day 14