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Haemodilution protocol. Infused HES volume at the procedure (A), arterial HCT (%) levels after hemodynamic stabilization (T0), at the end of fluid treatment (target haematocrit of 25%) (T1) and the end of experimentation (T2) (B). HES: hydroxyethyl starch; ANH: acute normovolemic haemodilution; AHH: acute hypervolemic haemodilution. **P < 0.01, ***P < 0.001.
