Department of Obstetrics and Gynecology, Angers University Hospital, Angers, France.
Department of Obstetrics and Gynecology, Bordeaux University Hospital, Bordeaux, France.
Sci Rep. 2017 Apr 21;7:46333. doi: 10.1038/srep46333.
Postpartum hemorrhage (PPH) is one of the most common causes of mortality in obstetrics worldwide. The accuracy of estimated blood loss is a priority in determining appropriate treatment. Will the additional use of a visual aid improve physicians' accuracy in estimating blood loss compared to the use of a collector bag and baby scale alone? Simulation training sessions created three vaginal delivery scenarios for participants to estimate volumes of blood loss: firstly, using only a collector bag and a baby weight scale and secondly, adding a visual aid depicting known volumes of blood. The primary endpoint was to determine if participants could accurately evaluate blood loss within a 20% error margin. The addition of the visual estimator resulted in overestimation of blood loss. The rates of participants' estimations were significantly more accurate when using the collector bag with the baby weight scale without the addition of the visual aid; 85.5% versus 33.3% (p < 0.01) for 350 mL, 88.4% versus 50.7% (p < 0.01) for 1100 mL and 88.4% versus 78.3% (p < 0.01) for 2500 mL, respectively. Additional use of a visual aid with a collector bag does not seem to be useful in improving the accuracy in the estimation of blood loss.
产后出血（PPH）是全球产科最常见的死亡原因之一。估计失血量的准确性是确定适当治疗方法的首要任务。与仅使用集血袋和婴儿秤相比，额外使用视觉辅助工具是否能提高医生估计失血量的准确性？模拟培训课程为参与者创建了三种阴道分娩场景，以估计失血量：首先，仅使用集血袋和婴儿秤，其次，添加描绘已知血量的视觉辅助工具。主要终点是确定参与者是否可以在 20%的误差范围内准确评估失血量。添加视觉估计器会导致失血量的高估。当使用集血袋和婴儿秤而不添加视觉辅助工具时，参与者的估计率明显更准确；对于 350 毫升，分别为 85.5%对 33.3%（p<0.01），对于 1100 毫升，为 88.4%对 50.7%（p<0.01），对于 2500 毫升，为 88.4%对 78.3%（p<0.01）。额外使用带集血袋的视觉辅助工具似乎并不能提高失血量估计的准确性。
