摘要
目的探讨妊娠各周脐动脉血流S/D值正常参考值,并对其异常者进行病因分析。方法 对自2011年8月至2012年9月在潍坊市人民医院门诊就诊的702例妊娠12～29 w的妇女,应用彩色多普勒超声检测脐动脉血流S/D值(收缩期峰值与舒张期低值之比),对数据进行统计,得出不同孕周S/D值的均数,并对异常者(脐动脉血流S/D值高于该孕周S/D值的均数)进行病因分析。结果 随孕周增加S/D值逐渐下降,S/D值与孕周呈现显著负相关,702例受检者中异常的有52例,其病因包括妊娠期高血压疾病14例,抗磷脂综合征23例,抗甲状腺抗体阳性10例,胎儿畸形2例,其他3例。结论 脐动脉S/D值可以反映胎盘的血流动力学改变,S/D值随孕周增加而降低,当出现产科并发症、合并症及胎儿畸形可致脐动脉血流S/D比值增高。
Objective To study the normal ranges of $/D ratio of umbilical artery flow in different gestational weeks and to have a clinical analysis of abnormal umbilical S/D ratios. Methods The S/D Ratio of umbilical artery blood flow of 702 pregnant women, who were with 12 to 29 weeks of pregnancy in Weifang People＇ s Hospital from Aug. 2011 to Sep. 2012, were tested by color Doppler ultrasound. An average data of S/D ratio in different gestational weeks was adopt- ed, and the cause of abnormal S/D Ratio, which was higher than the average in the same gestational weeks, got analyzed. Results The S/D ratio of normal pregnancy would gradually drop with the increase of gestational weeks, so the S/D ratio and gestational weeks had a significant negative correlation. Among 702 tested cases, there were 52 cases with abnormal S/ D ratio, of which, the pathogenesis included 14 cases of PIH, 23 cases of APS, I0 cases of thyroid antibody positive, 2 cases of fetal anomaly, and 3 cases of unexplained reasons. Conclusion S/D ratio of umbilical artery flow can reflect the hemodynamic changes of the placenta. The S/D ratio of normal pregnancy will gradually drop with the increase of gestation- al weeks, while obstetric complications and fetal malformation can cause S/D ratio of umbilical artery blood flow increase.
出处
《辽宁医学院学报》
CAS
2013年第2期55-56,62,共3页
Journal of Liaoning Medical University (LNMU) Bimonthly
关键词
妊娠
脐动脉血流
S
D值
病因
pregnancy
umbilical artery flow
S/D ratio
pathogenesis
