Why the study?
The effect of left ventricular mechanical unloading on right ventricular function in cardiogenic shock remains poorly understood, despite potential implications for device weaning and outcomes.
Does the change in right ventricular free-wall longitudinal strain predict successful weaning from microaxial flow pump support in patients with cardiogenic shock?
Does the change in right ventricular free-wall longitudinal strain predict successful weaning from microaxial flow pump support in patients with cardiogenic shock?
In patients with cardiogenic shock supported by a microaxial flow pump, inadequate right ventricular longitudinal systolic reserve (measured by change in RVFWLS) independently predicts weaning failure.
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May inform Impella weaning decisions in CS; retrospective data leave open causal RV effects and need for prospective validation.
Rapis et al. (2025) studied this question.
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