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Speckle-tracking echocardiography combined with haemodynamic monitoring for evaluating the degree of left ventricular unloading. (A–D) Impella monitoring, haemodynamic status and strain analysis at P6 Impella speed. (E–H) Increased unloading at P8 provides better haemodynamic status and myocardial contractility. Changes in myocardial contractility between P6 and P8 unloading were not detectable with left ventricular ejection fraction measurement.
