论文部分内容阅读
目的探讨经腹超声在孕中期胎盘前置状态诊断中的价值。方法选择经常规产检或妊娠期内阴道流血进行B超检查诊断为胎盘前置状态的孕妇41例,视情况每隔0.5~1个月复查1次腹部超声。结果 41例患者中,完全性(中央性)前置胎盘7例,部分性前置胎盘17例,边缘性前置胎盘10例,低置胎盘7例。随访至终止妊娠或分娩时,7例完全性(中央性)前置胎盘均持续至妊娠晚期,而其他类型前置胎盘仅3例持续至妊娠晚期。结论经腹超声检查妊娠中期前置胎盘快捷、准确、安全、无创伤、可重复,是目前诊断前置胎盘的首选方法,对孕中期发现的胎盘前置状态进行追踪随访、定期检查,为临床医师作出正确处置提供信息,值得临床应用和推广。
Objective To investigate the value of transabdominal ultrasonography in the diagnosis of placenta previa in the second trimester of pregnancy. Methods: Forty-one pregnant women who had routine prenatal diagnosis or vaginal bleeding during pregnancy were diagnosed as placenta previa. One case of abdominal ultrasound was rechecked every 0.5 to 1 month. Results Among the 41 patients, there were 7 cases of complete (central) placenta previa, 17 cases of partial placenta previa, 10 cases of marginal placenta previa and 7 cases of placenta previa. At follow-up to termination of pregnancy or childbirth, all seven of the complete (central) placenta previa continued into late pregnancy, whereas only 3 of the other types of placenta continued until late trimester. Conclusion Transabdominal ultrasonography is a fast, accurate, safe, noninvasive and repeatable method for placenta previa. It is the first choice for the diagnosis of placenta previa. Follow-up and regular examination of the placenta previa detected in the second trimester of pregnancy are clinical Physicians make the right information to deal with, worthy of clinical application and promotion.