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Correlations of renal Doppler resistive (RDRI) index with CI: cardiac index, LVSWI: left ventricular stroke work index [(MAP(mmHg) − PCWP(mmHg)) × SVI(mL) × 0,0133322], HR: heart rate, SVRI: systemic vascular resistance index, MAP: mean artery pressure, and CVP: central venous pressure, in 61 patients admitted to the intensive care unit after elective cardiac surgery.
