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目的探讨产前核磁共振检查在预防前置胎盘患者胎盘因素致产后出血中的应用价值。方法回顾性分析618例前置胎盘的病例资料,依术前是否行核磁共振检查将其分为两组,核磁共振组361例和未行核磁共振组257例病例进行对比分析。结果核磁共振组凶险型前置胎盘发生率为21.61%,和未行核磁共振组的25.29%比较,差异无统计学意义(P>0.05);而两组产后出血发生率、产后出血量、髂内动脉介入术、子宫切除及弥散性血管内凝血(DIC)发生率差异有统计学意义(P<0.05)。结论核磁共振检查能对前置胎盘位置及是否合并植入做出较准确产前诊断,可在分娩前充分准备,减少产后出血量和子宫切除风险。
Objective To investigate the value of prenatal MRI in preventing postpartum hemorrhage due to placental factors in patients with placenta previa. Methods A retrospective analysis of 618 cases of placenta previa cases data, according to whether preoperative MRI check them into two groups, 361 nuclear magnetic resonance group and no nuclear magnetic resonance group 257 cases comparative analysis. Results The incidence of malignant placenta previa was 21.61% in nuclear magnetic resonance (MR) group and 25.29% in non-nuclear magnetic resonance group (P> 0.05). The incidence of postpartum hemorrhage, postpartum hemorrhage, The rates of intra-arterial intervention, hysterectomy and disseminated intravascular coagulation (DIC) were significantly different (P <0.05). Conclusion MRI can make a more accurate prenatal diagnosis of placenta previa location and whether combined with implantation, can be fully prepared before delivery to reduce the risk of postpartum hemorrhage and hysterectomy.