twin pregnancy

In this series abnormal pregnancies with open NTD showed high maternal serum AFP values, yielding a defection rate of 85.7%. In addition, twin pregnancy, fetal death and inevitable abortion gave a high value too.

本组异常妊娠中开放性神经筛缺损AFP值升高，其检出率为85.7%，AFP值升高者还有双胎妊娠、死胎、难免流产；

Perhaps stretching of uterine muscle has a substantial role in preterm labour in twin pregnancy, and infection and inflammation a role in singletons.

或许子宫肌肉的拉扯可能在双胞胎早产扮演部分角色。

The twin pregnancy complications had high incidence, the main complications were premature delivery ( PTL), pregnancy-induced hypertension ( PIH), premature rupture of fetal membrane ( PROM), anemia, and postpartum hemorrhage.

双胎妊娠并发症多且发生率高，其主要并发症为早产、妊娠期高血压疾病、胎膜早破、贫血及产后出血等。

3, 454 frozen-thawed embryos were twin-transferred to 227 recipients, 61.7% ( 140/ 227) of pregnancy rate and results indicate that satisfactory pregnancy and twinning rates can be obtained after twin-transfer of in vitro embryos to recipients.

将454枚冷冻胚胎移植到227头受体母牛，每头接受2枚冻胚。移植后50～60d的怀孕率为61.7%（140／227），其中双胎率为25%（35／140）。

Conclusions: Expectant therapy should be adopted in order to reduce the incidence of preterm premature rupture of membranes, preterm labor and newborn asphyxia in twin pregnancy.

结论：双胎妊娠容易发生胎膜早破、早产、新生儿窒息等，双胎妊娠伴胎膜早破时期待疗法意义不大，双胎妊娠时应尽量避免胎膜早破的发生。

Dead center turn bench Clinical nursing care of twin pregnancy with a stillborn foetus

双胎妊娠宫内&胎死亡的临床护理

We investigated the delivery manner of 44 twin pregnancies between 1990 and 1995. The result showed that dystocia and operative delivery for twin pregnancy occur more often apparently than mono-cyesis because of the abnormal fetal position, the abnormality of force of labor and pregnancy complication.

本文对我院1990～1995年间44例双胎妊娠的分娩方式进行了分析。指出双胎妊娠由于胎位异常、产力异常及妊娠并发症多等因素，难产及手术产率均较单胎明显增高。

Methods One hundred and fourty-one women with high hemorrhagic risk factors including twin pregnancy, polyhydramnios, fetal macrosomia, placenta previa were planned cesarean section.

方法对141例有出血高危因素（双胎、羊水过多、巨大儿、前置胎盘）的产妇行剖宫产术。

Objective: To investigate the influence of different results of twin pregnancy to mather and neonate.

目的：了解双胎妊娠不同分娩结局对母儿的影响。

Results: There were totally 109 pregnancy cycles in 718 cycles of IUI, of these twin pregnancy rate was 9.2%, triplet pregnancy rate was 2.8%, miscarriage rate was 22.2%, and clinical pregnancy rate ( CPR) per cycle was 15.2%.

结果：718周期的IUI中妊娠109周期，其中双胎妊娠率9.2%，三胎妊娠率为2.8%，流产率为22.2%，每周期临床妊娠率为15.2%。

Results: The natural rate of HP and twin pregnancy ( TP) in recent twenty years were approximately 1 ∶ 4 000 and 1 ∶ 140 intrauterine pregnancies ( IUP) in our hospital, respectively.

结果：本院近20年内HP和双胎妊娠的自然发生率分别约为1∶4000及1∶140次宫内妊娠（IUP）。

Results: The incidence of twin and triple pregnancy were 15.2 ‰ and 0.078%, respectively in the recent 5 years.

结果：双胎和三胎妊娠发生率分别为1.5%和0.078%。

Methods: retrospective analysis was made about the relationship between the neonatal Apgar score of255 cases of twin pregnancy, neonatalasphyxia, perinatal mortality and the gestational week, neonatal birth weight, presentation sort and delivery mode.

方法回顾分析255例双胎妊娠新生儿apgar评分、新生儿窒息、围生儿死亡与孕周、新生儿体重、分娩方式的关系。

Objective To investigate the clinic effects of the twin pregnancy after assistant reproductive tech ˉ nology.

生殖技术[摘要]目地探讨辅助生殖技术后多胎妊娠地临床结局.