Study on the Correlation between Massive Hemorrhage and Imaging Parameters in Hysteroscopic Surgery for Scar Pregnancy
Objective To investigate the correlation between magnetic resonance imaging parameters and intraoperative blood loss in scar pregnancy hysteroscopy.Methods A total of 39 patients with scar pregnancy who underwent hysteroscopic resection from July 2018 to October 2021 in Hefei Third Hospital were collected.According to whether the amount of bleeding was greater than the median 50 ml,the cases were divided into two groups for case-control study.The t or rank sum test was used to compare the differences of clinical and imaging parameters between the two groups.The smaller P value was included in the regression model,and the positive event was assigned to 1 for massive hemorrhage and 0 for non-massive hemorrhage.The relative risk of massive hemorrhage was calculated for each additional unit from the control group to the case group.Results Comparing the parameters of 24 cases of non-hemorrhage and 15 cases of hemorrhage,there were differences in gestational sac deformation,scar depth and width between the groups,and the P value was less than 0.05.Multivariate logistic regression showed that scar width was an independent influencing factor for massive hemorrhage(relative risk OR=1.246,95％CI 1.038-1.495,P=0.018).The ROC curve AUC=0.831,P=0.001.When the scar width was greater than 16.5mm,the predictive sensitivity was 0.67 and the specificity was 0.79.Conclusion Massive hemorrhage during hysteroscopic surgery for scar pregnancy is related to the deformation(roundness)of gestational sac,scar depth and width,and scar width is a more important risk evaluation index for scar pregnancy.
万方数据
维普
