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Copyright of Forensic Science & Technology is the property of Institute of Forensic Science, Ministry of Public Security and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To explore the influencing factors of falls in the elderly and to provide evidence for the prevention of falls. Methods The study was based on a large sample of 179 141 individuals in Shanghai, with a final inclusion of 40 244 participants. Firstly, independent variables including basic demographics, living environment, health status, and lifestyle habits were selected, with falls as the dependent variable, and univariate and multivariate logistic regression analyses were conducted. Secondly, negative emotions were considered as independent variables, and multivariate logistic regression analysis was performed. Results The fall incidence rate in the elderly within 90 days was 19.55%. Living alone (fall within 30 days: OR=1.161, 95%CI: 1.051-1.282; fall between 31-90 days: 02 = 1.173, 95%CI: 1.070-1.287), unclean living environment (Oi=L775, 95%CZ: 1.331-2.367; OR=1A 17, 95%CI: 1.037-1.203), having M3 chronic diseases (Oi =2.024, 95%CI: 1.763-2.322; OR=2.089： 95%CI: 1.835-2.379), using urine or stool pads (Oi=1.581, 95%CI: 1.351-1.850; Oi=1.445, 95% CI: 1.239-1,685), and low frequency of outdoor activities (occasional outdoor activitie: 0=1.458, 95%CI: 1.171-1,816; OR-1.359, 95%CI: 1.114-1.65& rarely going out: OR=2.084, 95%CI: 1.673-2.596; Oi=2.053, 95%CI: 1.682-2.506) were identified as risk factors for falls within 30 days and 31 to 90 days. Advanced age (70-79 years: O2=1.179, 95%CI: 1.063-1.30& 80 years and above: OR=1A59 95%CI: L040-1.292), abnormal vision (O=L235, 95%CI: 1.079-1.414), and needing assistance with household chores (partially completed by others: OR = 1.572, 95%CI: 1.139-2.169; fully completed by others: 02 = 1.649, 95%CZ: 1.269-2.143) were risk factors for falls within 30 days. There was no cdlinearity between the independent variables Compared with those who did not feel negative emotions, the elderly who frequently felt fatigued had a lower risk of falling (fall within 30 days： O2=O.g86, 95%CZ: 0.gll」.968; fall between 31-90 days： OR =0.900, 95%Ch 0.828-0.977), while the elderly who frequently felt angry had a higher risk of falling (fall within 30 days： O«=1.491> 95%CZ: 1.248-1.782; fall between 31-90 days： 022=1.270, 95%CZ: 1.067-1.513). Conclusion Elderly individuals living with others, maintaining a clean and tidy indoor environment, having a flat and clutter-free floor, and maintaining a good emotional state have a reduced risk of falling. For elderly individuals with relatively good activities of daily living (ADL) and cognitive function it i$ advisable to encourage apprapriate outdoor activities and engage in moderate -intensity and frequency physical activities to prevent falls. [ABSTRACT FROM AUTHOR]

Copyright of Journal of International Obstetrics & Gynecology is the property of TianJin Medical Information Center and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Health Resources is the property of Health Development & Policy Research Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Shandong Medical Journal is the property of Shandong Medical Health Newspapers and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Health Resources is the property of Health Development & Policy Research Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To explore the effect of individually whole course nutrition intervention mode on pregnant women with gestational diabetes mellitus (GDM) . Methods 379 pregnant women with GDM diagnosed in the People′s Hospital of Henan University of Traditional Chinese Medicine from June 2019 to February 2021 were randomly divided into observation group (187 cases) and control group (192 cases) . The control group was given routine intervention mode, and the observation group was given individually whole course nutrition intervention mode on the basis of the control group. The blood glucose level, living behavior pattern and pregnancy outcome were compared between the two groups. Results After the intervention, the weekly weight gain of the observation group was lower than that of the control group (P<0. 05) . There was no significant difference in the level of fasting blood glucose (FPG) between the two groups after the intervention (P>0. 05), but there were significant differences in the levels of 2 hpostprandial blood glucose (2 hPG) after three meals and glycosylated hemoglobin (HbA1c) (P<0. 05) . The levels of FPG, 2 hPG and HbA1cin the observation group before delivery were significantly lower than those in the control group (P<0. 05) . There were significant differences in the intake of energy, productivity nutrients and non productivity nutrients (except vitamin A and E) between the two groups after intervention (P<0. 05) . The levels of serum albumin, hemoglobin and transferrin in the observation group were significantly higher than those in the control group after intervention (P<0. 05) . There were significant differences between the two groups in the mode of delivery, the incidence of polyhydramnios, macrosomia and fetal distress (P<0. 05) . Conclusion The individually whole course nutrition intervention model can improve the compliance and execution of GDM pregnant women, help them reach the ideal blood glucose level, and ensure good nutritional status and maternal and child health. [ABSTRACT FROM AUTHOR]

Copyright of Forensic Science & Technology is the property of Institute of Forensic Science, Ministry of Public Security and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

目的 了解上海市长期护理保险服务的开展现况及老年人的服务利用情况和需求, 为进一步完善护理服务 体系提供参考。方法 对上海市263 家长期护理保险定点的区级医疗机构和179 家提供上门服务的养老服务机构、 16 个区的社区老年人开展大规模问卷调查, 共回收6 567 份, 筛选出其中接受过长期护理保险服务的60 岁及以上 老年人, 最终获得有效问卷1 055 份。结果 上海市长期护理保险服务项目在不同性质医疗机构与养老服务机构的 开展覆盖率存在差异：在公立医疗机构内开展的项目平均覆盖率较高, 达到72.36%;在民营养老服务机构（仅提 供上门服务）的项目开展平均覆盖率较高, 达到60.03%。部分服务项目实际开展利用较少, 尤其是临床护理类项 目, 如灌肠、造口护理、经外周静脉置入中心静脉导管（PICC）维护这几项的使用率均不超过5%。结论 老年人的 需求与服务供给存在差距, 服务供需的矛盾根源在于人力、物力及相关机制的缺乏。建议开展与服务项目匹配的 护理员培训, 提升护理人员的资质与素养。加强政策宣传引导、完善服务项目的精准度, 适当增加针对不同老年 人群体的服务项目. [ABSTRACT FROM AUTHOR]

Postpartum hemorrhage is still one of the main causes of maternal death. Some studies have confirmed that oxytocin administration during labor is associated with a higher risk of postpartum hemorrhage, especially when the dose used during labor is high, the duration of time is long, or the woman does not receive active management in the third stage of labor. The desensitization sequence in oxytocin receptors is one of the pathophysiologic hypotheses, and clinically this can manifest as a reduction in oxytocin-induced contractility, resulting in uterine atony and postpartum hemorrhage. This paper reviews the research progress of the association between oxytocin during labor and risk of postpartum hemorrhage, so as to contribute to the establishment of a reasonable oxytocin administration and decrease the incidence of postpartum hemorrhage secondary to uterine atony. [ABSTRACT FROM AUTHOR]

Copyright of Journal of International Reproductive Health/Family Planning is the property of Editorial Board of the Journal of International Reproductive Health/Family Planning and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Health Resources is the property of Health Development & Policy Research Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of International Reproductive Health/Family Planning is the property of Editorial Board of the Journal of International Reproductive Health/Family Planning and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Laser Technology is the property of Gai Kan Bian Wei Hui and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Preterm birth is a complex multifactorial syndrome that is the leading cause of neonatal death. Once preterm labor is initiated, there is no effective way to extend gestational ages. Over the years, researchers have been trying to find out the pathophysiological mechanism and effective prediction method of preterm labor, but the pathologic mechanism of preterm labor is complex and requires the interaction between maternal and fetal tissues. Transcriptome studies about the maternal-fetal interface have shown that premature birth occurs when an early shift from anti-inflammatory to proinflammatory status during pregnancy disrupts the mother′s innate and adaptive immune balance. Myometrial transcriptome studies have also found that labor is associated with inflammatory signals, including pathways associated with cytokines, chemokines, and immune responses. However, RNA from pregnancy-related tissues is usually released into maternal blood, and RNA can directly reflect the physiological information of the source of tissues. Therefore, cell free RNA in maternal peripheral blood can be used to predict preterm birth in the future. However, there are still some limitations in the study on preterm delivery, and it is impossible to obtain the normal pregnancy tissue matching with the gestational age as a control. Therefore, it is still the focus of future research to find effective biological markers that can predict preterm delivery. [ABSTRACT FROM AUTHOR]

0bjective To explore the effect of oral nutrition supplement(0NS) on the nutritional status and adverse reactions of lung cancer patients during radiotherapy. Methods 220 lung cancer patients hospitalized in the Radiotherapy Department of the hospital from March to June 2019 were selected and divided into study group and control group according to the random number table method, 110 cases in each group. The control group was given daily diet and intensive nutrition consultation, and the study group was combined with ONS on the basis of the control group. The changes and adverse reactions of the two groups were ob served. The levels of serum total protein, albumin and the incidence of nutritional risk were compared before and after radiotherapy. Results During the whole period of radiotherapy, the weight, body fat, fat free weight and muscle mass of the two groups de creased, and the loss of each index in the study group was lower than that in the control group, the differences were statistically significant(P<0.05). At the end of radiotherapy,the body weight and muscle mass of the patients in the study group were higher than those in the control group, while the weight loss was lower than that in the control group, the differences were statistically significant(P<0.05). Before radiotherapy, there were no significant differences between the two groups in the level of serum total protein,albumin and the incidence of nutritional risk(P>0. 05). After radiotherapy,the level of serum total protein and albumin m the study group were higher than those in the control group, while the incidence of nutritional risk was lower than that in the control group, the differences were statistically significant(P<0. 05). There were no significant differences between the two groups in the incidence of decrease of hemoglobin,platelet and neutrophil count during radiotherapy(P>0. 05). During radiotherapy,the incidence of grade 2 myelosuppression,grade 2 and grade 3 radiation esophagitis and other adverse reactions in the control group were higher than those in the study group, the differences were statistically significant(P >0. 05). C . Conclusion A certain amount of 0NS is given to lung cancer patients at the beginning of radiotherapy, which can improve the nutritional status of patients during radio therapy, reduce the incidence of malnutrition and adverse reactions caused by radiotherapy. [ABSTRACT FROM AUTHOR]

Delivery is a process in which the fetus is descending with the contraction in the maternal birth canal. In addition to monitoring the fetal heart rate, doctors and midwives need to estimate the position, the station, and cervical dilatation through vaginal examination, if necessary, assist the mother to give birth. However, frequent vaginal examinations will not only bring a poor delivery experience to the mother, but also increase the risk of uterine infection. The accuracy of the vaginal examination depends on the experience of the examiner to a large extent. If the assessment is wrong, it may affect the final outcome. In recent years, more and more evidences shows that the accuracy, repeatability and maternal compliance of ultrasound are higher than vaginal examination in managing labor. Dozens of ultrasound parameters have been proposed, which have shown good performance in judging the fetal position, station, rotation and predicting the outcome of delivery. This review summarized recent literatures, in order to objectively analyze the advantages, disadvantages, and future development of ultrasound in labor monitoring. [ABSTRACT FROM AUTHOR]

Copyright of Application Research of Computers / Jisuanji Yingyong Yanjiu is the property of Application Research of Computers Edition and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of International Reproductive Health/Family Planning is the property of Editorial Board of the Journal of International Reproductive Health/Family Planning and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of International Reproductive Health/Family Planning is the property of Editorial Board of the Journal of International Reproductive Health/Family Planning and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

As a standardized graph depicting the process of production, the birth chart has evolved since its introduction, whose purpose is to better help medical staff to identify problems in the labor process, and to take interventions according to the clinical management program to reduce the occurrence of poor mother and child outcomes. But the partogram is complex and changeable, there is a gap between the theoretical best practice interventions and clinical practice. This article reviews and summarizes the research progress in the clinical application of partogram, and explore the effects of partogram factors, medical personnel professional skills, pregnant women, social environment, organizational background, economic and political background on the effective application of partogram in clinic. Medical staff should accurately identify these influencing factors, correctly assess the status of partogram in obstetrics, and rely on emerging technology to improve and optimize partogram, so that the partogram can be applied better and served the clinical work. [ABSTRACT FROM AUTHOR]

Preterm birth (PTB) is a common obstetric complications and it is greatly harmful to mothers and fetals. At present, the mechanism of PTB is not clear. The present research shows that the inflammatory response, especially the inflammatory mediators，plays an important role in the initiation of PTB. The inflammatory mediators on one hand promote the synthesis of prostaglandin and induce uterine contractions, on the other hand promote cervical ripening and trigger matrix metalloproteinases to degrade extracellular matrix, reduce toughness of fetal membranes. The combined effect of all above finally cause uterine contraction, cervical ripening, rupture of fetal membranes, leading to PTB. Microbial infection and the oxidative stress, inhibited autophagy can cause inflammation. PM2.5 may induce mild intrauterine inflammation, resulting in PTB. Mechanism of PTB is unknown and this article will review the mechanism from three aspects. They are the related molecules in inflammation-mediated PTB, the biological and non-biological pathways inducing inflammation. [ABSTRACT FROM AUTHOR]

With the advent of cell-molecular biology, prenatal screening and diagnostic methods have also changed, and more data need to be interpreted correctly，which is a challenge for prenatal diagnosis doctors. Among them, chromosome mosaicism is one of the most important factors that affect the accuracy of prenatal screening and diagnosis. Chromosome mosaicism is prevalence in human and affected by many factors, such as mother, father, placental and other factors. The main reason for the formation of mosaicism is chromosomal error separation in mitotic. The clinical manifestations of mosaicism are affected by a variety of factors, and their clinical outcomes are unique to each individual. The effect of mosaicism on prenatal screening and diagnosis are mainly in two aspects: ①Screening of cell-free fetal DNA (cfDNA) in maternal blood. Although a large number of related literature reported its higher detection rate for 21,18,13 trisomy, while cfDNA from the placenta, and confined placental mosaicism is an important factor affecting the accuracy of the results. ②If the chronic karatype is mosaicism， amniocentesis is required for futher confirmation. In conclusion, understanding the origin, mechanism and clinical outcome of chromosome mosaicism correctly, can provide patients with more valuable genetic information, and it′s importance for providing genetic counseling in prenatal screening and diagnosis. [ABSTRACT FROM AUTHOR]

Controversy has long existed about the optimal time to clamp and cut the umbilical cord for full-term and preterm infants. Policies for timing of cord clamping vary in different countries, with immediate cord clamping generally carried out in the first 15 seconds after birth, whereas delayed cord clamping usually involves clamping more than 30 seconds after the birth or when cord pulsation has ceased. Delayed cord clamping can increase the placental transfusion volume to infants, short term benefits associated with delayed cord clamping include increased hemoglobin level, prevention of intraventricular hemorrhage and late onset neonatal sepsis, without increasing the incidence of postpartum hemorrhage, long term benefits include increased iron storage and prevention of anemia in infancy. [ABSTRACT FROM AUTHOR]

Pre-eclampsia is closely associated with increased maternal and perinatal mortality and morbidity. Early recognition of women at risk of pre-eclampsia can effectively strengthen the management of the pregnancy. The tests used to predict pre-eclampsia include clinical history, examination findings, laboratory and haemodynamic tests. In general, tests in early pregnancy for predicting later development of pre-eclampsia have better specificity than sensitivity, as body mass index greater than 34 kg/m2, alpha-fetoprotein, fibronectin and uterine artery doppler (bilateral notching) all have specificities above 90%. Only uterine artery doppler resistance index and combinations of indices have a sensitivity of over 60%. Test such as kallikreinuria not used in clinical practice, has shown high sensitivity above 80%, without compromising specificity, and require further investigation. At present, the clinical practice of pre-eclampsia prediction is the joint application of several parameters, not a check project with sufficient accuracy can be used independently. [ABSTRACT FROM AUTHOR]

Metabonomics refers to the study of dynamic system responses of multiple endogenous body metabolites to a stressor, pathophysiological stimuli, or genetic modification, it is a research field concerned with developing methods for analysis of low molecular weight compounds in biological systems, such as cells, organs or organisms. Maternal metabolism during pregnancy is a major determinant of the intrauterine environment and fetal outcomes, which can affect fetal outcomes. Given the recognized lack of prenatal clinical methods for the early diagnosis of pregnancy-related diseases, and the continuing need for optimized diagnosis methods for specific chromosomal disorders (e.g. trisomy 21) and fetal malformations, many research sought specific metabolic signatures of these conditions. The application of metabonomics to maternal-fetal medicine research will help to predictive disease biomarkers and interpret the pathogenesis. In addition, it can also provide the theoretical and experimental support for prevention and treatment of pregnancy-related diseases as well as the prognosis of mothers and their infants. Review the current and potential applications of metabolomics in pregnancy-related diseases. [ABSTRACT FROM AUTHOR]

Autophagy plays a key role in the development of human placenta. But the biological significance of autophagy is still not clear. One possible role of autophagy is to protect trophoblasts from apoptosis induced by hypoxia or nutritional deprivation. The human placenta is hemochorial and maternal blood contact directly with chorion. Therefore, the villous trophoblasts are easily exposed to stress status caused by variable maternal blood flow. In pregnancy complications, such as preeclampsia and fetal growth retardation, the pathway of autophagy is activated to maintain cellular homeostasis allowing trophoblast cells to survive under shortage of oxygen and glucose. Autophagy is involved in development of the human placenta and placenta-related diseases, and changes in oxygen and glucose levels participate in regulation of autophagic changes in cytotrophoblast cells. [ABSTRACT FROM AUTHOR]

Objective: To establish the reference intervals for hematologic parameters in antepartum and 24 hours after postpartum in healthy pregnant women, and analyze physiological changes occurring in hematologic parameters. Methods: The samples comprised of healthy pregnant women who had cesarean section at term in Tianjin Central Hospital of Gynecology Obstetrics from Jun. 2015 to Oct. 2015. The blood test results before and after delivery were retrospectively analyzed. Results: The reference intervals obtained before delivery were: RBC, (3.27~4.49)×1012/L; Hb, 93.4~135.3 g/L; HCT, 0.286~0.399; WBC, (5.47~12.34)× 109/L; PLT, (113.7~307.0) × 109/L. After delivery, RBC count and PLT dropped significantly(P=0.002, P=0.000, respectively), and WBC count increased significantly(P=0.000), Hb and HCT levels remained unchanged, and the value of MCV, MCH, MCHC slightly increased, the percentage of neutrophils and intermediate cells increased significantly(P=0.000), while the percentage of lymphocytes dropped significantly (P=0.000). Conclusions: The reference intervals for Hb concentration and PLT in healthy prgnant women showed some differences with non-pregnant women. Compared with antepartum, the WBC count increased after delivery, while the RBC count and PLT count dropped. The differences observed underscore the need to establish reference values for Chinese women before and after delivery. [ABSTRACT FROM AUTHOR]

Preterm birth is the first critical factor of life, threatening diseases for the perinatal. According to the statistics, the preterm birth rate in China reached 8.1% in 2012. And the frequency of preterm premature rupture of membranes (PPROM) is about 25%-30%, and intrauterine infection is the principal element. The recent research shows that a molecular mechanism of PPROM is advanced degradation of extracellular matrix, which due to the activation of matrix metalloproteinases (MMPs) in fetal membrane. The high expression of cytokines, such as IL-1, IL-6 and TNF-α, maybe the reason of MMPs' activation. The process of activation and secretion of MMPs in term labor and preterm birth still need to be explored, which may be considered as a marker of pregnancy outcome. MMPs can provide a breakpoint of prevention and therapy for PPROM. [ABSTRACT FROM AUTHOR]

目的 观察不同浓度组蛋白去乙酰化酶抑制剂 LBH589 对人前列腺癌 PC3 细胞增殖、EZH2 mRNA 及蛋白表达的影响。方法　选择 1、10、100 nmol／L的LBH589处理 PC3 细胞，采用MTT 法测算细胞增殖抑制率，实时定量 PCR、Western blotting 法分别检测细胞EZH2的mRNA和蛋白。结果　随着浓度和时间的增加， LBH589对PC3细胞的抑制作用呈现明显的时间-剂量关系（ P均＜0．05）。相同时间时，随着LBH589浓度的增加，PC3细胞EZH2的mRNA、蛋白表达逐渐降低（P均＜0．05）；相同浓度时，随着时间的延长，PC3细胞EZH2的mRNA、蛋白表达逐渐降低（P均＜0．05）。结论 LBH589可抑制PC3细胞的增殖，同时可使细胞EZH2的mRNA及蛋白表达降低，且随着浓度的增加作用增强。 [ABSTRACT FROM AUTHOR]

目的　探讨双胎妊娠一胎宫内死亡（ｓＩＵＦＤ）的发病原因、临床处理及妊娠结局。方法　回顾性分析46 例妊娠24周后ｓＩＵＦＤ患者的临床资料。结果　46例中单羊膜囊双胎5例，单绒毛膜囊双胎32例，双绒毛膜双胎 9例；除5例单羊膜囊双胎即刻终止妊娠外，其余41例均行期待治疗（4.6±3.2）周，分娩孕周（34.3±2.8）周。46 例中经阴道分娩12例，剖宫产34例；41例期待治疗者无存活儿宫内死亡及新生儿死亡，孕妇无并发症。结论　 ｓＩＵＦＤ的发病与绒毛膜性质有关，期待治疗是一种有效改善妊娠结局的处理方式。 [ABSTRACT FROM AUTHOR]