Relationship between haemoglobin change and estimated blood loss after delivery.

摘要

Sir, We read with interest the recent correspondence by [arisen et al, 'Relationship between haemoglobin change and estimated blood loss after delivery'. They found a low, but significant, correlation between visually estimated blood loss (EBL) and perioperative haemoglobin change in women delivering by caesarean section in 2005 (r = 0.31, P < 0.001). Jansen et al. rightly highlight the importance of blood loss at delivery and note that visual estimation is the most commonly used technique for estimating blood loss at delivery.