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 8

(a) Relationship between average stroke work and average hydraulic pump work for Sputnik 1 and Sputnik 2 LVADs supporting left ventricle with ventricle contractility factors (VCFs) of 0.5 and 0.25 and for Sputnik PRBP supporting pediatric left ventricle. (b) Relationships between end-diastolic volume and average stroke work for adult and pediatric LV supported by Sputnik 1, Sputnik 2 LVADs, and Sputnik PRBP, respectively. (c) Pump flow rate pulsatility indices for Sputnik 1 and Sputnik 2 LVADs supporting left ventricle with ventricle contractility factors (VCFs) of 0.5 and 0.25 and Sputnik PRBP supporting pediatric left ventricle in the speed ranges of 7000–10000 rpm and 7000–13000 rpm, respectively, with 200 rpm step. (d) End-diastolic volumes of left ventricle during support by Sputnik 1 and Sputnik 2 LVADs and Sputnik PRBP in the speed ranges of 5000–10000 rpm and 6000–13000 rpm, respectively, with 200 rpm step.

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