Figure 2From: Safety, feasibility and complications during resective pediatric epilepsy surgery: a retrospective analysis The relation between intraoperative blood loss (expressed as fraction of the total blood volume) and the duration of surgery: a significant positive correlation (Pearson r = 0.52, p = 0.0003) was observed between the duration of surgery and blood loss. Linear regression revealed: blood loss = 0.081 × duration of surgery – 0.163.Back to article page