未经证实:产后出血是产妇因分娩而死亡的主要原因,也是产妇发病的原因。
未经评估:在这项研究中,我们开始研究我们人群中产后出血的发生率,确定产后出血最重要的危险因素,从而开发产后出血和输血的预测风险计算器。
UNASSIGNED:数据取自2016年1月1日至12月31日阴道分娩或剖宫产的患者,作为危险因素考虑的变量如下:妊娠年龄,慢性或妊娠期高血压病史,先兆子痫,以前的堕胎,奇偶校验,先前的剖宫产,前置胎盘,劳动时间,产后出血为关注事件。客观定量是在体重表上进行的,以克为单位,用于估计出血,考虑产后出血,阴道分娩>500毫升,剖宫产术中出血>1000毫升。随后,使用朴素贝叶斯算法开发了一个预测风险计算器。
UNASSIGNED:在确定出血高危患者方面获得了58%的成功率,输血占36%,灵敏度为50.7%,特异性为64.06%,确定产后出血的危险因素,胎龄在35至40周之间,高血压和先兆子痫,先前的剖宫产,产程<1小时或超过10小时,前置胎盘及既往产后出血史。
UNASSIGNED:设计了产后出血风险计算器,由于其在纳入数据后提高了准确性,因此成为一种有用的工具,需要更大的研究人群来提高其在临床实践中的表现,并需要更多类似的研究来验证它。
UNASSIGNED: Postpartum hemorrhage is the major cause of maternal deaths due to childbirth and also responsible for maternal morbidity.
UNASSIGNED: In this study we set out to look the incidence of postpartum hemorrhage in our population, to identify the most important risk factors for postpartum hemorrhage and thus develop a predictive risk calculator for postpartum hemorrhage and transfusion.
UNASSIGNED: data was taken from patients who presented vaginal delivery or cesarean section from January 1 to December 31, 2016, the variables taken into account as risk factors were as follows: Gestational age, history of chronic or gestational hypertension, preeclampsia, previous abortions, parity, previous cesarean section, placenta previa, labor time, and postpartum hemorrhage as the event of interest. An objective quantification was performed on a weight scale in grams for the estimation of bleeding, considering postpartum hemorrhage those with >500 ml in vaginal delivery and >1000 ml of blood loss in cesarean section. Subsequently, a predictive risk calculator was developed using the Naïve Bayes algorithm.
UNASSIGNED: A success rate of 58% was obtained in the identification of patients at high risk of hemorrhage, and 36% for transfusion, with a sensitivity of 50.7% and specificity of 64.06%, identifying as risk factors for postpartum hemorrhage gestational age between 35 and 40 weeks, hypertension and preeclampsia, previous cesarean section, duration of labor <1 h or more than 10 h, placenta previa and previous history of postpartum hemorrhage.
UNASSIGNED: A postpartum hemorrhage risk calculator has been designed, which due to its improved accuracy after incorporation of data becomes a useful tool that will require a larger study population to improve its performance in clinical practice and more similar studies to validate it.