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1.
目的探讨冻融囊胚移植子宫内膜准备方法。方法回顾性分析该中心2012年5月-2014年5月633个冻融囊胚移植周期,其中A组为自然周期412例,B组为促排卵周期85例,C组为激素替代周期136例,将3组患者资料进行比较。结果C组子宫内膜厚度显著低于A组和B组,差异有统计学意义(P0.05)。3组的临床妊娠率分别为52.2%、42.4%、55.9%,种植率分别为41.2%、33.1%、45.1%,A组与C组相比,临床妊娠率和种植率差异均无统计学意义(均P0.05);B组与C组相比,临床妊娠率和种植率显著降低,差异均有统计学意义(均P≤0.05)。结论自然周期是简单、经济、有效的冻融囊胚移植子宫内膜准备方法,适用于有规律排卵的患者。激素替代周期安全、灵活、有效,是排卵障碍患者的最佳选择。临床上应因人而异,选择适宜的子宫内膜准备方案行冻融囊胚移植。  相似文献   

2.
目的:探讨体外受精-胚胎移植(IVF-ET)助孕控制性超排卵(CHO)周期中卵巢高反应患者实施新鲜单囊胚移植与冻融单囊胚移植的临床结局。方法:回顾性分析广西壮族自治区妇幼保健院生殖中心2013年1~12月行IVF助孕的卵巢高反应患者404例临床结局。其中,新鲜周期有卵巢过度刺激综合征(OHSS)风险,行首个冻融周期单囊胚移植145例(冻融周期组);新鲜周期单囊胚移植259例(新鲜周期组)。比较两组获卵数、妊娠率、种植率、流产率、异位妊娠率、活产率等相关指标。结果:冻融周期组与新鲜周期组获卵数分别为24.3±5.7枚、19.3±3.8枚,生化妊娠率分别为78.6%、50.6%,临床妊娠率分别为74.5%、50.6%,种植率分别为74.5%、50.6%,晚期流产率分别为0,6.1%,活产率分别为64.8%、40.2%,差异均有统计学意义(P0.05);而早期流产率分别为11.1%、11.5%,单卵双胎率分别为0.9%、0.8%,异位妊娠率分别为1.9%、3.1%,差异均无统计学意义(P0.05)。404例中OHSS发生率为3.0%,其中冻融周期组9例(6.2%),均为中、重度早发型OHSS;新鲜周期组3例(1.2%),均为中、重度迟发型OHSS。结论:IVF-ET中卵巢高反应行新鲜单囊胚移植及有OHSS高风险者选择冻融单囊胚移植均可有效降低OHSS发生率,而且冻融周期单囊胚移植比新鲜囊胚移植有更高的临床妊娠率及活产率。  相似文献   

3.
目的探讨高龄妇女冻融周期胚胎移植(FET)策略及以妊娠结局的影响,为临床助孕提供参考依据。方法回顾性分析2014年1月-2016年12月在湖北省妇幼保健院生殖医学中心行FET的患者临床妊娠率及流产率,找出高龄患者的年龄分界点,并根据内膜准备方案将高龄患者分为自然周期(NC)组、促排卵周期(COH)组和激素替代周期(HRT)组,根据移植胚胎类型分为胚胎移植组和囊胚移植组,分别比较各组的临床妊娠率、胚胎着床率、流产率及活产率。结果 38岁后患者的临床妊娠率急剧下降,流产率明显升高。高龄患者在冻融周期内膜准备时,NC组、COH组和HRT组患者的临床妊娠率分别为22. 95%、23. 68%、24. 58%,活产率分别为18. 03%、15. 79%、15. 92%,3组间临床结局差异无统计学意义(均P0. 05)。但囊胚移植患者的临床妊娠率和胚胎着床率(42. 96%,32. 26%)均明显高于胚胎移植者(15. 87%,9. 66%),差异有统计学意义(均P0. 01)。结论 38岁是本中心高龄妇女的年龄分界点,高龄患者FET时,内膜准备方案并不影响临床结局,可根据患者实际情况选择个性化的内膜准备方案,囊胚移植可以获得更好的临床结局。  相似文献   

4.
目的 比较三种不同用药方案对冻融胚胎移植(frozen-thawed embryo transfer,FET)结局的影响,指导如何选择恰当的子宫内膜准备方式.方法 对我中心采用自然周期、激素替代周期(hormone replacement therapy,HRT)、促排卵周期(HMG)三种子宫内膜准备方案进行FET的124个周期进行回顾性分析,比较不同方案在子宫内膜厚度、临床妊娠率、胚胎种植率、流产率、分娩率等方面是否存在差异.结果 三组病人的不孕年龄,不孕年限,不孕原因,移植胚胎个数间差异无统计学意义.三种方案在子宫内膜厚度,临床妊娠率,种植率,流产率,分娩率上差异均无统计学意义.结论 自然周期、激素替代周期、促排卵周期在冻融胚胎移植中作为子宫内膜的准备方法均获得良好的临床结局,在实际操作中应遵循个体化用药方案.  相似文献   

5.
目的 分析自然周期、激素替代周期与降调节后激素替代周期内膜准备方案对多次胚胎移植失败患者冻融胚胎移植结局的影响.方法 选取海南省妇幼保健院生殖医学中心与南京医科大学附属苏州医院生殖与遗传中心在2015年12月至2016年12月期间收治的、符合纳入标准的多次胚胎移植失败患者130例,根据内膜准备方案的不同,分为自然组(n=51)、替代组(n=32)、降调节组(n=47).对样本做回顾性分析并对比患者年龄、解冻胚胎数、不孕年限、移植胚胎数、转化日内膜厚度、雌二醇水平等一般临床资料.在自然周期以及冻融胚胎移植中,对比三组转化日子宫内膜形态,记录并比较三组胚胎着床、早期流产等妊娠结局情况.结果 三组患者年龄、解冻胚胎数、不孕年限、移植胚胎数、转化日内膜厚度、雌二醇水平差异均无统计学意义(均P>0.05).自然组在自然周期以及冻融胚胎移植中,子宫内膜形态均优于替代组和降调节组(χ2值分别为11.99、14.88,均P<0.05).降调节组的妊娠率、胚胎着床率达53.19%(25/47)、61.70%(29/47),均显著高于替代组和自然组(χ2值分别为9.80、11.80,均P<0.05),但三组早期流产率无明显差异(χ2=3.51,P>0.05).结论 降调节后激素替代周期能够有效提高多次胚胎移植失败患者的妊娠率和胚胎着床率.对于子宫内膜形态有缺陷或状态欠佳的患者,选择降调节后激素替代周期为佳.  相似文献   

6.
目的 探讨子宫内膜机械性刺激在冻融胚胎移植激素替代周期中对临床妊娠率、胚胎种植率的影响.方法 将193例行激素替代周期冻融胚胎移植患者根据月经第2或3天阴道B超子宫内膜情况分为三组:A组子宫内膜厚度≥0.6 cm或内膜不均匀者采用子宫内膜机械性刺激,54例;B组子宫内膜厚度≥0.6cm或内膜不均匀未行子宫内膜机械性刺激,55例;C组子宫内膜厚度<0.6cm并且内膜均匀,84例;每组患者各自采用囊胚移植或卵裂球移植(A组分别为23,31例;B组分别为24,31例;C组分别为39,45例).比较三组卵裂球或囊胚移植患者的年龄、移植胚胎数、注射绒促性素日雌二醇、胚胎种植率、临床妊娠等情况.结果 (1)采用囊胚移植患者临床特征比较:三组患者年龄、移植胚胎数、胚胎种植率比较差异无统计学意义(P>0.05);A组、C组临床妊娠率明显高于B组[73.91%(17/23),69.23%(27/39)比37.50%(9/24)],差异有统计学意义(P<0.05),A组与C组比较差异无统计学意义(P>0.05);C组注射绒促性素日雌二醇明显高于B组[(841.56±802.73)μg/L比(293.34 ±69.14) μg/L],差异有统计学意义(P<0.05),A组与B组、A组与C组比较差异无统计学意义(P>0.05).(2)采用卵裂球移植患者临床特征比较:三组患者年龄、移植胚胎数、注射绒促性素日雌二醇、胚胎种植率、临床妊娠率比较差异无统计学意义(P>0.05).结论 子宫内膜机械性刺激可以提高采用囊胚移植的激素替代周期冻融胚胎移植患者的临床妊娠率,而对于卵裂球移植患者的胚胎种植率及临床妊娠率则无改善.  相似文献   

7.
目的:探讨激光透明带打孔法辅助孵化(AH)对玻璃化冻融胚胎/囊胚移植临床结局的影响.方法:选取该院生殖中心2012年9月~2014年3月进行的符合相关标准的D3日玻璃化冻融胚胎968周期和DS/D6日玻璃化冻融囊胚284周期资料.根据移植术前是否对胚胎/囊胚进行AH操作,将D3日冻融胚胎移植周期分为A1组(AH组,887周期)和A2组(未做AH组,81周期),D5/D6日冻融囊胚移植周期分为B1组(AH组,112周期)和B2组(未做AH组,172周期).观察各组患者的胚胎种植率、临床妊娠率、早期流产率、多胎妊娠率、异位妊娠率等临床指标,分析AH对胚胎植入和妊娠结局的影响.结果:A1组/A2组、B1组/B2组间年龄、不孕年限、体重指数(BMI)、不孕因素、获卵数、内膜厚度、内膜准备方案等基础资料的比较,差异均无统计学意义(P>0.05);A1组/A2组、B1组/B2组间移植胚胎/囊胚数、植入优胚/囊胚比例、胚胎种植率、临床妊娠率、早期流产率、多胎妊娠率等指标的比较,差异也均无统计学意义(P>0.05).结论:对玻璃化冻融胚胎移植和冻融囊胚移植,AH均未见到对胚胎植入和临床妊娠有显著影响.  相似文献   

8.
目的分析冷冻胚胎复苏移植周期移植发育D5/D6的新鲜囊胚和冻融囊胚的临床结局,探讨不同发育时期囊胚的发育潜能,为进一步改进胚胎冷冻移植方案提供依据。方法回顾性分析因输卵管因素或男方因素行IVF/ICSI治疗后复苏周期行胚胎解冻培养新鲜囊胚移植和冻融囊胚移植患者的临床资料,根据囊胚形成和发育时间不同分为D5鲜囊胚组,D6鲜囊胚组,D5冻融囊胚组和D6冻融囊胚组。自然周期或雌激素替代周期准备子宫内膜,厚度达到8 mm以上后予黄体酮转化(D0),内膜转化第3天解冻复苏胚胎行囊胚培养,第5天移植发育至D5的囊胚,第6天移植发育D6囊胚;冻融囊胚在内膜转化第5天复苏,2 h后移植,分析比较各组间的临床结局。结果冷冻胚胎复苏后囊胚培养,D5鲜囊胚移植的胚胎种植率(48.57%)显著高于D6鲜囊胚(26.67%),差异有统计学意义(P0.05);临床妊娠率(68.52%)也明显高于D6鲜囊胚移植(46.67%),但差异无统计学意义(P0.05)。D5冻融囊胚的临床妊娠率(73.72%)和胚胎种植率(55.47%)均显著高于D6冻融囊胚组(47.89%和32.39%),差异有统计学意义(P0.01);D5/D6鲜囊胚分别与D5/D6冻融囊胚相比较,两组间临床妊娠率、胚胎着床率、流产率及活产率差异均无统计学意义(P0.05)。结论无论是冻融胚胎解冻养囊胚还是冻融囊胚复苏移植,D5囊胚移植相较于D6囊胚移植更有利于胚胎着床,获得更好的临床妊娠结局。新鲜周期移植后多余胚胎可行囊胚培养后冷冻保存,反复胚胎移植失败者可考虑将冻融胚胎行囊胚培养后移植,既提高胚胎利用率又有利于改善临床妊娠结局。  相似文献   

9.
目的探讨冻融胚胎移植中不同内膜转化时间对妊娠结局的影响。方法回顾性分析2017年山西医科大学第一医院生殖医学中心采用激素替代周期准备子宫内膜进行冻融胚胎移植的895个周期的妊娠结局。根据孕酮转化子宫内膜时间的不同分为两组,A组:600个周期随机抽样300个周期,孕酮转化子宫内膜后3 d移植D 3胚胎;B组:295个周期,孕酮转化子宫内膜后4 d移植D 3胚胎。比较两组种植率、临床妊娠率、异位妊娠率、多胎妊娠率、早期流产率、活产率。结果两组患者的不孕原因、不孕类型、年龄、不孕年限、移植日子宫内膜厚度、体质量指数、解冻胚胎数、移植胚胎数、优质胚胎率、种植率、临床妊娠率、异位妊娠率、多胎妊娠率、早期流产率、活产率比较,差异均无统计学意义(P0.05)。结论冻融胚胎移植中孕酮转化内膜后3 d、4 d移植胚胎均可获得满意的妊娠结局。  相似文献   

10.
目的:探讨多次移植失败患者不同内膜准备方案对冻融胚胎移植结局的影响。方法:回顾分析多次胚胎移植失败者行冻融胚胎移植资料,其中采用自然周期45例(A组);采用激素替代周期33例(B组);采用降调节后激素替代周期40例(C组)。结果:3组对象的年龄、体重指数、不孕年限、解冻胚胎数、移植胚胎数、转化日雌二醇水平、转化日子宫内膜厚度、自然周期排卵前内膜厚度、早期流产率差异均无统计学意义(P0.05);自然周期中排卵前内膜形态A组和B组优于C组,差异有统计学意义(P0.05);B组、C组的胚胎种植率、临床妊娠率高于A组,差别有统计学意义(P0.05),B组与C组之间差别无统计学意义(P0.05);B组的移植优胚数高于C组(P0.05),A组与C组、A组与B组差别均无统计学意义(P0.05)。冻融胚胎移植周期中A组和B组转化日内膜形态优于C组,差异有统计学意义(P0.05)。结论:对于多次移植失败者采用激素替代和降调节后激素替代子宫内膜准备法行冷冻胚胎解冻移植可获得较好的妊娠结局,对于子宫内膜形态欠佳者,建议行降调后激素替代方案。  相似文献   

11.
Epidemiological studies of calcium and osteoporosis have been hampered by the lack of a suitable tool for assessing calcium intake. This report describes a new frequency and amount questionnaire for measuring present and past calcium intake in the elderly. The validity of the questionnaire was tested against two commonly used standards of dietary assessment, five-day duplicate diets and seven-day weighed dietary inventories. The resulting correlation coefficients were, respectively, r = 0.76 and r = 0.69, while that for repeatability was r = 0.84. Furthermore, the questionnaire categorized subjects into thirds of the distribution of intake with almost no gross misclassification. It is suggested that the present findings may be extended to the majority of normal, healthy elderly subjects, implying wide application for the questionnaire in the assessment of calcium intake in the elderly.  相似文献   

12.
This paper examines media coverage of 'breast cancer genetics', and explores its implications for public understanding. We present a content analysis of coverage in British newspapers and look at a variety of popular forms, including women's magazines, television soap opera and radio drama. Genetic/inherited risk receives a great deal of coverage across a wide range of media formats and outlets. Much of this attention has focused on individuals from 'high risk families' and dilemmas around prophylactic mastectomies. Through examining media coverage, combined with interviews with media personnel and their sources, we show why this story proved so attractive to the media and highlight the different production values which influence coverage. Finally, we introduce preliminary findings from focus group discussions to demonstrate how such 'human interest' framing has engaged audience attention and influenced public understandings. The paper concludes by highlighting the implications for analysing, predicting, and engaging with, media representations of science.  相似文献   

13.
深圳公立医院管理体制改革实行政事分开、管办分开,在理事会架构下按法定机构模式组建市医管中心,落实公立医院运营管理自主权.作者从当前公立医院管理体制的弊端入手,介绍了深圳市进行公立医院管理体制改革的基本思路及改革方案设计的主要举措,深入剖析了的改革方案的特点,并对改革效果进行了预测.  相似文献   

14.
Red cell membranes, prepared from red blood cells of rats exposed to 4, 10, or 20 ppm nitrogen dioxide (NO2) for 1 to 10 days, were examined for evidence of changes in membrane components. Appreciable changes were not found in contents of phospholipid and cholesterol during exposure to 10 ppm NO2. By contrast, protein content altered with the time of exposure. Moreover, changes in protein composition were observed by employing sodium dodecyl sulfate — polyacrylamide gel electrophoresis. Twenty-four-hour exposure to NO2 at the concentration above 10 ppm resulted in a marked increase in the percentage of lysophosphatidylethanolamine (LysoPE) to the total phospholipids. The prolonged exposure to 10 ppm NO2 gave rise to a further increase in LysoPE, whereas the percentage of phosphatidylethanolamine (PE) showed a gradual decrease. A 1-day exposure to 4.0 ppm NO2 also caused an increase in sialic acid content and decreases in those of PE and hexose. In addition to contents of these components the percentage of LysoPE increased 5 days after exposure and the elevated values were maintained up to the end of exposure period. These results demonstrate that red blood cells in circulation exhibit different membrane properties in terms of lipid and carbohydrate composition during 10 days of exposure to 4.0 ppm NO2.  相似文献   

15.
Antibiotics represent one of the most important drug groups used in the management of bacterial infections in humans and animals. Due to the increasing problem of antibiotic resistance, assurance of the antibacterial effectiveness of these substances has moved into the focus of public health. The reduction in antibiotic residues in wastewater and the environment may play a decisive role in the development of increasing rates of antibiotic resistance. The present study examines the wastewater of 31 patient rooms of various German clinics for possible residues of antibiotics, as well as the wastewater of five private households as a reference.To the best of our knowledge, this study shows for the first time that in hospitals with high antibiotic consumption rates, residues of these drugs can be regularly detected in toilets, sink siphons and shower drains at concentrations ranging from 0.02?μg·L?1 to a maximum of 79?mg·L?1. After complete flushing of the wastewater siphons, antibiotics are no longer detectable, but after temporal stagnation, the concentration of the active substances in the water phases of respective siphons increases again, suggesting that antibiotics persist through the washing process in biofilms. This study demonstrates that clinical wastewater systems offer further possibilities for the optimization of antibiotic resistance surveillance.  相似文献   

16.
The risk of heat exhaustion at a deep underground metalliferous mine was assessed in relation to thermal conditions prevailing on the surface. For each day of a 1-year prospective case series of heat exhaustion, surface 24-h mean wet and dry bulb temperatures were recorded. From this data, 24-h mean wet bulb globe temperatures were derived using certain assumptions. The three surface temperature variables were significantly higher on those days on which heat exhaustion occurred, compared to those days on which it did not occur (P < 0.001). The relative risk of heat exhaustion on days when the 24-h mean wet bulb globe temperature was in the range 26.0-28.0 degrees C was 4.82 (95% confidence interval 2.12-10.96). Surface temperature data could be used at this mine to warn miners about the risk of heat exhaustion.  相似文献   

17.
Unemployment is considered to be a public health concern sincedeterioration in the health of the unemployed is often anticipated.However, for some groups, such as miners, unemployment mightimprove health due to a cessation of potentially harmful occupationalexposures. This study evaluates the health of 79 miners in oneSwedish iron-ore mine, and 226 age-matched controls from thegeneral population, during one year after the closure of themine. The participants received a questionnaire regarding medicalhistory and subjective symptoms at the beginning of the studyperiod, and after one year. Statistically significant negativeeffects on self-reported health attributable to unemploymentwere not found, although neuropsychiatric symptoms were morecommon among the unemployed miners. The miners reported a statisticallysignificant improvement in grip force (p=0.031). They had asignificantly higher prevalence of symptoms associated withmining related exposures when compared with the population controls;pain in the upper extremities [relative risk (RR)=2.27, 95%confidence interval (Cl)=1.44–3.59), back pain (RR=1.84;Cl=1.237–2.75), vasospastic disease of the fingers (RR=2.05;Cl=1.18–3.57) and obstructive respiratory symptoms (attacksof dyspnea and wheezing: RR=3.67; Cl=1.167–11.6).  相似文献   

18.

Context

Tularemia is a zoonosis affecting humans and hares in France. We describe the results of surveillance in both species, in 2007 and 2008.

Methods

Human tularemia cases are mandatorily notifiable in France since 2003. In hares, surveillance relies on volunteer hunter associations in all districts of the country. Data from mandatory reports and volunteer surveillance in 2007/2008 were analyzed and compared with previous results.

Results

In 2007/2008, 144 cases were reported in humans and 117 cases in hares. This was a 100% increase compared to previous years. Human cases differed from those of previous years only by the frequency of contact with breeding animals. Human cases without any documented risk exposure were also more frequent.

Conclusion

An increase of tularemia cases occurred in 2007/2008 in both species. Complementary studies are needed to identify the species reservoir in France to understand the causes of this peak of cases.  相似文献   

19.
20.
The repeatability and validity of a questionnaire for upper limb and neck complaints were assessed in a population of 105 hospital outpatients with a range of upper limb and neck disorders (including cervical spondylosis, adhesive capsulitis, lateral epicondylitis, carpal tunnel syndrome and Raynaud's phenomenon). Subjects were asked to complete a modified Nordic-style upper limb and neck discomfort questionnaire on two occasions closely spaced in time. The repeatability of their responses was assessed by calculating a kappa coefficient (kappa), and the sensitivity and specificity of component items in the questionnaire were determined for specific diagnostic categories of upper limb and neck disorder. Symptom reports for pain in the upper limb and neck, pain interfering with physical activities, neurological symptoms and blanching were all found to be highly repeatable (kappa = 0.63-0.90). A number of regional pain reports proved to be very sensitive in relation to specific upper limb disorders, but, with the exception of reported finger blanching in patients with Raynaud's phenomenon, none proved to have a good specificity (range = 0.33-0.38). We conclude that a modified Nordic-style questionnaire is repeatable and sensitive, and is likely to have a high utility in screening and surveillance. However a complementary examination schedule of adequate specificity and repeatability is essential to establish a clinical diagnosis.  相似文献   

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