Measurement of Blood Loss
Since visual estimation of BL is grossly inaccurate in CCVR, CBL was used to quantify BL using a widely-accepted formula previously described in this population 2: EBVlost(mL/kg) = ERCVlost (mL)/[weight (kg) x HCTpreop/100] where ERCV is estimated red cell volume, EBV is estimated blood volume, HCT is hematocrit, mL is milliliters, and kg is kilograms.