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Left ventricular myocardial work parameters were measured using the non-invasive PSL technique. Cuff contraction pressure is represented on the ordinate and longitudinal strain on the abscissa. PSL, pressure-strain loop; GLS, global longitudinal strain; GWI, global work index; GCW, global constructive work; GWW, global wasted work; GWE, global work efficiency, BP blood pressure.
