Advances in Hemodynamic Analysis in Cardiovascular Diseases Investigation of Energetic Characteristics of Adult and Pediatric Sputnik Left Ventricular Assist Devices during Mock Circulation Support

Figure 5

(a, c) Average levels of left ventricular stroke work, hydraulic pump work, and total work for Sputnik 1 LVAD supporting the adult LV with ventricular contractility factors (VCFs) of 0.5 and 0.25, respectively, in the pump speed range of 5000–10000 rpm with 200 rpm step. (b, d) Average aortic valve and pump flow rates with respect to normal, heart failure, and supported states in the pump speed ranges specified for Sputnik 1 LVAD supporting LV with VCFs of 0.5 and 0.25, respectively. Stroke work and aortic valve flow rates in normal and heart failure states are presented for comparison.

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