PCOS患者不同子宫内膜准备方案冻胚移植结局分析

目的:探讨冻胚移植失败PCOS患者再次冻胚移植内膜准备的最佳方案。方法:回顾分析2011年8月~2013年7月在青岛市妇女儿童医院生殖中心行人工周期准备内膜冻融胚胎移植的PCOS患者的临床资料,对移植失败或因突破性出血取消周期尚有冻存胚胎的162例PCOS患者实施再次冻胚移植。将患者随机分为GnRHa+人工周期(降调节+人工周期组)、人工周期和诱导排卵方案3组,观察3组患者的年龄、体重指数(BMI)、不孕年限、胚胎冻存时间、突破性出血率、周期取消率、优质胚胎率、移植胚胎数、移植日子宫内膜厚度及类型、内膜增殖时间、内膜转化日血清雌激素浓度、种植率、妊娠率、流产率、异位妊娠率。结果:降调节+人工周期组和诱导排卵组无一例发生突破性出血。诱导排卵组内膜转化日E2平均水平为(2827.33±1148.49)pg/ml,高于其他2组,差异有统计学意义(P0.05);平均子宫内膜厚度为(9.14±0.90)mm,较其他2组增高,但差异无统计学意义(P0.05)。诱导排卵组的B级以下内膜所占比例最低,为9.76%,但差异无统计学意义(P0.05)。降调节+人工周期组的临床妊娠率和着床率分别为50.94%和22.54%,诱导排卵组分别为53.66%和22.77%,与人工周期组(31.03%,13.07%)比较,差异均有统计学意义(P0.05)。结论:对于PCOS患者,初次冻胚移植失败后再次冻胚移植时采用降调节+人工周期方案或诱导排卵方案,可降低突破性出血率,减少周期取消,提高妊娠率和着床率。     

子宫内膜厚度变化对冻胚移植周期妊娠结局的影响

目的:探讨子宫内膜厚度在加用孕酮前后变化对激素替代周期单枚卵裂期优质胚胎冻胚移植(FET)妊娠结局的影响.方法:回顾性分析天津市中心妇产医院生殖中心2014年7月至2019年1月行激素替代周期(HRT)符合纳入标准共102例患者的临床资料,加入孕激素后的最后1天子宫内膜厚度(移植日内膜厚度)较加用孕激素当日子宫内膜厚度...     

不同黄体酮软胶囊剂量对冻胚移植周期妊娠结局的影响

目的探讨冻胚移植周期的子宫内膜准备方案中不同黄体酮软胶囊剂量行黄体支持与临床妊娠结局的关系。方法回顾性分析2017年1月至2017年12月中山大学孙逸仙纪念医院采用黄体酮软胶囊行黄体支持的冻胚移植周期853例患者的临床资料,其中自然周期组437例,激素替代周期组416例,按照不同的黄体支持方案分为四组:(1) A组:黄体酮软胶囊400 mg/d;(2) B组:黄体酮软胶囊400 mg/d+地屈孕酮20 mg/d;(3) C组:黄体酮软胶囊600 mg/d;(4) D组:黄体酮软胶囊600 mg/d+地屈孕酮20 mg/d。比较不同子宫内膜准备方案、黄体支持剂量及妊娠结局。结果 (1)自然周期组不同黄体支持方案的临床妊娠率、流产率和活产率比较,差异无统计学意义(P0.05);(2)激素替代周期C组的临床妊娠率低于D组(35.50%, 51.30%, P=0.008);(3)激素替代周期C组中35岁患者的早期流产率低于≥35岁患者(7.14%, 36.80%, P=0.004)。C组中,激素替代周期组35岁患者的临床妊娠率低于自然周期(38.90%, 68.30%, P=0.002)。结论在冻胚移植周期中,激素替代周期增加黄体支持剂量有助于改善患者的妊娠结局。     

长方案IVF取卵后立刻冻胚移植对临床结局的影响

目的:探讨体外受精-胚胎移植(IVF-ET)治疗中,长方案取卵后立刻冻胚移植(FET)对临床妊娠率的影响。方法:回顾分析2014年12月至2018年6月在南通大学附属医院生殖医学中心行FET的390个周期,均采用长方案控制性超排卵IVF治疗,因鲜胚移植失败或全胚冷冻而要求FET。按FET时间不同分组:立刻FET组,即取卵后第一次月经来潮开始子宫内膜准备FET;延迟FET组,即取卵后至少等待1个月及以上再行子宫内膜准备FET,比较两组的妊娠结局。结果:390个FET周期中,立刻FET组128个周期,延迟FET组262个周期,两组的胚胎种植率(45.9%vs 43.8%)、生化妊娠率(75.8%vs 69.5%)、临床妊娠率(64.1%vs 59.5%)和持续妊娠率(56.3%vs 54.2%)比较,差异均无统计学意义(P0.05)。结论:立刻FET与延迟FET的临床妊娠率无差异,没有必要推迟FET时间。     

来曲唑促排周期在冻融胚胎移植内膜准备中的临床应用

目的:探讨来曲唑(LE)促排周期在排卵障碍或月经不规律患者冻融胚胎移植(FET)内膜准备中的临床效果。方法:回顾分析2015年1月至2016年12月首次行FET的排卵障碍或月经不规律患者的临床资料。根据内膜准备方案分为两组:LE组(213例),激素替代周期组(HRT组)(1934例)。首次HRT周期助孕失败尚有冻胚的241例患者行再次FET,其中35例采用LE周期(35例),206例仍采用HRT周期。比较各组患者的一般资料和生殖相关参数间的差异。结果:LE组的移植日内膜厚度[(9.49±1.97)mm]高于HRT组[(8.85±2.18)mm],胚胎种植率(45.4%)和活产率(42.7%)高于HRT组(37%和35.9%),流产率(11.2%)低于HRT组(18.9%),差异均有统计学意义(P0.05)。前次HRT周期助孕失败再次FET患者中,采用LE周期和HRT周期患者的一般资料与临床妊娠结局比较,差异均无统计学意义(P0.05)。结论:首次FET患者LE促排周期的临床妊娠结局优于HRT周期;前次HRT周期失败的患者改用LE促排周期未见明显优势,LE促排卵内膜准备可作为排卵障碍或月经不规律患者FET内膜准备的有效候选方案。     

薄型子宫内膜患者冻融胚胎移植周期使用他莫昔芬治疗结局研究

目的:探讨薄型子宫内膜患者冻融胚胎移植周期应用他莫昔芬(TAM)促排卵准备内膜的临床效果。方法:回顾性分析2014年1月至2015年10月于我院进行冻融胚胎移植的薄型子宫内膜患者205例,其中TAM促排卵准备内膜组(TAM组)113例,激素替代组(HRT组)92例。比较两组间冻融胚胎(分裂胚及囊胚)移植周期内膜厚度、临床妊娠率、种植率、流产率。结果:TAM组内膜明显厚于HRT组。TAM组分裂胚的临床妊娠率、种植率明显高于HRT组(P0.05,P0.01),流产率两组比较差异无统计学意义(P0.05),两组均无异位妊娠。两组间囊胚移植的临床妊娠率、种植率、流产率及异位妊娠率差异均无统计学意义(P0.05)。结论:薄型子宫内膜患者冻融胚胎移植,推荐使用TAM促排卵及HCG诱导排卵方案准备内膜;薄型内膜患者推荐囊胚优先移植。     

薄型子宫内膜患者冻融胚胎移植两种内膜准备方案临床妊娠率比较研究

目的比较薄型子宫内膜患者行冻融胚胎移植(FET)时自然周期(NC)、激素替代周期(HRT)两种内膜准备方案的临床妊娠率。方法选取2012年1月至2018年12月中山大学附属第一医院生殖医学中心人绒毛膜促性腺激素(hCG)扳机日子宫内膜厚度≤7mm、行FET患者为研究对象,根据内膜准备方案分为NC组和HRT组,使用倾向得分匹配方法成功匹配117对,匹配变量为年龄、移植胚胎类型、移植胚胎数目,比较匹配后两组的胚胎种植率、临床妊娠率。结果 NC组、HRT组的胚胎种植率(36.47%vs. 39.03%)、临床妊娠率(44.40%vs. 52.10%)比较,差异均无统计学意义(P0.05)。结论薄型子宫内膜患者FET内膜准备方案中,NC周期与HRT周期临床妊娠率无差异,临床上可根据患者自身特点选择合适的方案。     

自然周期与激素替代周期准备内膜对冻融胚胎移植结局的影响

目的:探讨同一黄体支持剂量时两种内膜准备方案对冻融胚胎移植妊娠结局的影响。方法:回顾性分析2016年1月至2016年12月在兰州大学第一医院生殖医学专科医院采用自然周期和激素替代周期准备内膜,并采用相同剂量黄体支持的冻融胚胎移植(FET) 233例患者资料,其中自然周期121例,激素替代周期112例。比较不同内膜准备方案患者的年龄、体质量指数(BMI)、多囊卵巢综合征(PCOS)/排卵障碍比例、ICSI比例、移植胚胎数、移植日子宫内膜厚度、临床妊娠率、早期流产率、晚期流产率、早产率及活产率等。结果:自然周期组年龄大于激素替代周期组(31. 99岁vs 30. 89岁),BMI(21. 35 kg/m2vs 22. 23 kg/m2)、PCOS/排卵障碍比例(4. 13%vs 19. 64%)小于人工周期组,差异有统计学意义(P0. 05)。两组移植胚胎数、有优胚移植比例、胚胎种植率、多胎率比较,差异无统计学意义(P0. 05)。自然周期组和激素替代周期组患者临床妊娠率(57. 85%vs65. 18%)、早期流产率(13. 04%vs 15. 28%)、晚期流产率(1. 45%vs 4. 17%)、早产率(28. 81%vs36. 21%)、活产率(85. 51%vs 80. 56%)比较,差异无统计学意义(P0. 05)。结论:足量黄体支持的情况下,在冻融胚胎移植中自然周期和激素替代周期准备内膜均可获得相似的妊娠结局,临床工作中可根据实际情况灵活选择。     

多囊卵巢综合征患者冻融胚胎移植3种内膜准备方案的临床结局比较

目的:比较多囊卵巢综合征(PCOS)患者冻融胚胎移植(FET)周期3种不同内膜准备方案的临床妊娠结局,探讨适合PCOS患者的子宫内膜准备方案.方法:回顾性分析127例PCOS患者冻融胚胎移植周期的临床资料,比较激素替代组(HRT组)、HMG诱导排卵组(HMG组)和来曲唑诱导排卵组(LE组)的子宫内膜厚度、临床妊娠率、种植率、早期流产率、活产率.结果:HRT组47例,43个移植周期,HMG组35例,32个移植周期,LE组45例,42个移植周期,3组年龄、不孕年限、体重指数、血清睾酮水平差异无统计学意义(P>0.05),周期取消率、子宫内膜厚度、复苏后胚胎存活率、平均移植胚胎个数,移植优质胚胎率、周期临床妊娠率、周期种植率、早期流产率、活产率亦差异无统计学意义(P>0.05).结论:PCOS患者FET周期3种子宫内膜准备方案均能获得良好的妊娠结局,来曲唑诱导排卵可作为PCOS患者FET周期内膜准备方案之一,应个体化选择临床用药方案.     

同一促排周期来源冻融胚胎移植两次单胎妊娠分娩临床结局比较

目的:比较同一促排周期来源的两次冻融胚胎移植,两次均为单胎妊娠分娩临床结局的差异.方法:回顾分析2011年至2018年于中国科学技术大学附属第一医院生殖医学中心接受助孕治疗,移植同一促排周期来源的冻胚后两次单胎妊娠分娩产妇101例.按胚胎冻存年限分为0～3年组和4～9年组,按孕妇年龄分为≤30岁、30～35岁、≥35岁...     

Risk factors for pre-eclampsia in pregnant Chinese women with abnormal glucose metabolism.

OBJECTIVES: To investigate the incidence and risk factors for pre-eclampsia in pregnant Chinese women with abnormal glucose metabolism. METHODS: A retrospective cohort study was performed on 1499 pregnant women with abnormal glucose metabolism at Peking University First Hospital from January 1995 to December 2004. RESULTS: The overall prevalence of pre-eclampsia in women with abnormal glucose metabolism was 9.4% (141/1499). The prevalence of pre-eclampsia in women diagnosed with diabetes mellitus prior to pregnancy was higher than that of gestational diabetes mellitus and gestational impaired glucose tolerance patients (29.1% vs 8.7% and 7.8%, P<0.01). Pre-pregnancy body mass index was significantly higher in women with pre-eclampsia than in those without. A higher rate of pre-eclampsia was found in women with chronic hypertension and those with poor glucose control. The independent risk factors for pre-eclampsia were chronic hypertension and elevated pre-pregnancy body mass index. CONCLUSIONS: The type of diabetes, chronic hypertension, and elevated pre-pregnancy body mass index are high risk factors for pre-eclampsia in pregnant women with abnormal glucose metabolism.     

Comparison between two protocols for thawed embryo transfer: natural cycle versus exogenous hormone replacement

Introduction: There are two most popular protocols for Frozen Embryo Transfer: the natural and the E2&;P4 replacement cycles. There is still a controversy whether one is superior over the other.

Purpose: To compare the outcome in patient groups undergoing FET following these protocols.

Methods: About 1235 FET cycles were retrospectively analyzed during a period of 12 years. In 798 cycles (group A), the natural cycle protocol was used, and in 437 cycles (group B), the exogenous E2&;P4 administration protocol was used.

Results: The average patient age was 32.11?±?0.27 years in group A and 32.94?±?0.19 years in group B (p?p?p?p?Conclusions: Natural endometrial preparation yields better outcome in compare with exogenous E2&;P4 in FET cycles with higher endometrial thickness, implantation, and clinical pregnancy rates.     

玻璃化冻融人卵裂期胚胎移植结局的影响因素分析

目的:探讨玻璃化冻融人第3天卵裂期胚胎移植结局的影响因素。方法:回顾分析977例1301个冻融胚胎移植周期,根据患者年龄、新鲜周期结局、移植胚胎质量等因素分组,比较各分组的胚胎植入率、临床妊娠率。结果:复苏3598个胚胎,存活3462个。周期临床妊娠率24.1%,出生婴儿291个。新鲜周期结局、移植胚胎质量组间胚胎着床率、临床妊娠率的差异有统计学意义(P<0.01)。子宫内膜准备方案、胚胎的复苏程度组间差异无统计学意义(P>0.05)。不同年龄组相同不孕年限亚组间的胚胎着床率、临床妊娠率的差异有统计学意义(P<0.05)。移植日子宫内膜厚度>12.0mm组与其他两组相比,胚胎着床率、临床妊娠率较高(P<0.05);不同FET次数组间,1次组的胚胎着床率、临床妊娠率明显高于其他两组(P<0.01)。非条件逐步logistic回归分析表明年龄(P<0.01,OR=0.43)、FET次数(2次组P<0.01,OR=0.30;3次组P<0.01,OR=0.19)、新鲜周期结局(P<0.01,OR=9.01)、移植胚胎质量(P<0.01,OR=3.52)与移植结局相关。结论:年龄、新鲜周期结局、移植胚胎质量等是影响冻融胚胎移植结局的重要因素。     

Modified natural-cycle cryopreserved embryo transfer: is a washout period needed after a failed fresh cycle?

Research questionAre the characteristics of the natural cycle or modified natural cycle (mNC), or live birth rates (LBR), affected by delaying frozen embryo transfer (FET) after a failed fresh IVF cycle?DesignIn a retrospective study, conducted at a university-affiliated tertiary centre, 198 women aged 18–45 years undergoing their first FET cycle after a failed fresh embryo transfer attempt using an mNC were evaluated. Cycles were divided according to the time interval between oocyte retrieval and the start of the FET cycle into the immediate FET group (<22 days) and the delayed FET group (≥22 days). The main outcome measures were ovulation day and LBR.ResultsThe mean interval between oocyte retrieval and the start of the FET cycle was 15.6 ± 3.2 days in the immediate FET group and 84.8 ± 73.7 days in the delayed FET group (P < 0.001). Ovulation day was significantly delayed in the immediate FET group (day 17.1 ± 4.4 versus day 15.4 ± 3.7; P = 0.004). There was no difference between the immediate and delayed FET groups in terms of clinical pregnancy rate (CPR) (25.4% and 25.0%, respectively) or LBR (21.2% and 20.0%, respectively).ConclusionsNatural-cycle characteristics are similar in immediate and delayed cycles, except for a slight delay in ovulation day. Deferring mNC-FET after a failed fresh IVF cycle does not improve the reproductive outcome. These results should encourage patients and clinicians who want to proceed with FET immediately after failure of fresh IVF.     

Spontaneous ovulation versus HCG triggering for timing natural-cycle frozen-thawed embryo transfer: a randomized study

In ovulatory patients, frozen-thawed embryo transfer (FET) is commonly performed during a natural cycle (NC). The objective was to compare serial monitoring until documentation of ovulation with human chorionic gonadotrophin (HCG) triggering, for timing NC-FET. Sixty women with regular menstrual cycles undergoing NC-FET were randomized into two groups: group A (n=30) had FET in a natural cycle after ovulation triggering with HCG; group B (n=30) had FET in a natural cycle after detection of spontaneous ovulation. The main outcome measure was the number of monitoring visits at the clinic per cycle. Secondary outcome measures included implantation rate, clinical pregnancy and live-birth rates. Both groups were similar in terms of demographic characteristics and reproductive history. Clinical and laboratory characteristics of fresh and frozen cycles and pregnancy and delivery rates were comparable for both groups. The number of monitoring visits in group A (3.2 ± 1.4) was significantly lower than in group B (4.7 ± 1.6) (P=0.002). In patients undergoing NC-FET, triggering ovulation by HCG can significantly reduce the number of visits necessary for cycle monitoring without an adverse effect on cycle outcome. Ovulation triggering can increase both patient convenience and cycle cost effectiveness.     

不同促排卵方案来源胚胎冻融胚胎移植妊娠结局分析北大核心CSCD

目的探讨不同促排卵方案来源胚胎冻融胚胎移植(FET)的妊娠结局。方法回顾性分析2016年1月至2021年5月在南通大学附属医院生殖医学中心接受体外受精或卵泡浆内单精子注射-胚胎移植(IVF/ICSI-ET)治疗,因鲜胚移植失败或全胚冷冻而要求FET的252个周期,根据刺激周期方案的不同将其分为5组:高孕激素促排卵(PPOS)组(n=26)、枸橼酸氯米芬+人绝经期促性腺激素(CC+hMG)组(n=50)、超短方案组(n=57)、拮抗剂组(n=78)及长方案组(n=41),分析各组的临床结局。结果 252个FET周期中,各组体重指数(BMI)、不孕年限、不孕类型、刺激周期时扳机日E2水平/扳机日直径≥14mm卵泡数、移植周期时转化日内膜厚度、转化日E2水平、移植D3胚胎或囊胚比例,差别均无统计学意义(P>0.05)。各组间患者年龄、基础FSH、获卵数、刺激周期Gn总量及平均移植胚胎数,差异有统计学意义(P<0.05)。各组间hCG阳性率、临床妊娠率、流产率及继续妊娠率差异无统计学意义(P>0.05)。但CC+hMG组hCG阳性率、临床妊娠率及继续妊娠率数值上最低,长方案组hCG阳性率、临床妊娠率及继续妊娠率数值上均最高。多因素logistic回归分析发现CC+hMG组FET临床妊娠率低于长方案组,差别有统计学意义(P<0.05),但与其他各组比较差异无统计学意义。其他4组间比较妊娠结局无明显差异(P>0.05)。结论 PPOS、超短方案、长方案、拮抗剂促排卵方案来源胚胎FET妊娠结局在数值上优于CC+hMG促排卵方案,其中长方案显著优于CC+hMG促排卵方案。     

Placental tissue cyclo-oxygenase 1 and 2 in pre-eclamptic and normal pregnancy.

OBJECTIVE: To investigate the activities of the 2 isoforms of prostaglandin synthetic enzyme cyclo-oxygenase (COX), COX-1 and COX-2, in the placental tissue of women with pre-eclampsia and healthy pregnant women. The relationship between placental lipid peroxidation and the activities of COX-1 and COX-2 was also investigated. METHODS: Tissue specimens were obtained from pre-eclamptic women (20 had severe pre-eclampsia and 38 had mild pre-eclampsia) and 27 healthy pregnant women who underwent cesarean section before the onset of labor. Malondialdehyde (MDA) levels and COX-1 and COX-2 activities were measured in placental tissue homogenates. RESULTS: Mean activities for COX-1 and COX-2 were significantly lower in women with severe pre-eclampsia than in healthy controls (P<0.05 and P<0.01, respectively). COX-1 and COX-2 activities were also lower in women with mild pre-eclampsia than in healthy controls, but the difference was of borderline significance (P=0.049 and P=0.059, respectively). The mean placental MDA level was significantly higher in pregnant women with severe and mild pre-eclampsia than in healthy pregnant women (P<0.01 for both). The correlation analysis showed significant negative correlations between MDA and COX-1 (r=-0.44, P<0.001) and MDA and COX-2 (r=-0.45, P<0.001) in the placental tissue of women with pre-eclampsia. CONCLUSION: These results suggest that COX-1 and COX-2 activities are decreased in the placental tissue of women with pre-eclampsia, probably by oxidative stress.     

Maternal hypertensive disorders are an independent risk factor for the development of necrotizing enterocolitis in very low birth weight infants

OBJECTIVE: The purpose of this study was to compare complications and outcome of preterm neonates weighing < or =1,500 g who developed necrotizing enterocolitis (NEC) to neonates without NEC. STUDY DESIGN: During January, 1995 to December, 1998, 211 live preterm neonates were born with birth weight < or =1,500 g. A cross sectional prospective study was designed and two groups were defined: 17 neonates who developed NEC and 194 without NEC. Multiple logistic regression analysis was performed to determine independent risk factors for the development of NEC. RESULTS: The prevalence of NEC was 8% (17/211). The following complications were found to be significantly higher among mothers of neonates with NEC: mild pre-eclampsia (11.8 vs. 2.6%, p=0.04); severe pre-eclampsia (35.5 vs. 12.9%, p=0.01); chronic hypertension (29.4 vs. 5.7%, p<0.001) and low birth weight (968 +/- 233 vs. 1,123 +/- 257 g, p=0.02). In contrast, mean maternal age, mean gestational age at delivery and parity were not significantly different between the groups. A multivariate analysis including the following factors: maternal hypertensive disorders, pregestational diabetes mellitus, birth weight and gestational age at delivery, found only maternal hypertensive disorders to be independent risk factors for NEC (OR=5.21, 95% CI 1.64-16.58). CONCLUSIONS: Maternal hypertension is an independent risk factor for the development of NEC in preterm neonates weighing <1,500 g. Thus, maternal vascular disorders may play an important role in the pathophysiology of NEC.     

手术剥除子宫内膜异位囊肿对IVF-ET结局的影响

目的:探讨子宫内膜异位囊肿手术剥除与否对IVF-ET结局的影响。方法:回顾性分析接受IVF-ET第1周期治疗的305例患者,分成子宫内膜异位囊肿手术组(A组)、子宫内膜异位囊肿未手术组(B组)和管性不孕对照组(C组),采用长、短方案进行超促排卵,比较3组的IVF结局。结果:无论刺激方案如何,A组平均获卵数低于B组与C组(P≤0.001),而FSH用量高于C组(P<0.001),A组妊娠率低于B组,B组妊娠率低于C组(P<0.05)。B组与C组相比,除FSH用量较高(P<0.001)外,获卵数、总胚胎数、优质胚胎率、可利用胚胎数3组间比较无统计学差异。此外,在A组中,手术侧卵巢平均获卵数低于健侧卵巢(P<0.01),且术侧卵巢未获卵的比例达24%。结论:子宫内膜异位囊肿患者IVF结局不良;手术剥除子宫内膜异位囊肿并不能改善IVF结局,反而降低了卵巢反应性。