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81.
Air bubble migration is a random event post embryo transfer 总被引:1,自引:0,他引:1
Introduction: Air bubble location following embryo transfer (ET) is the presumable placement spot of embryos. The purpose of this study
was to document endometrial air bubble position and migration following embryo transfer.
Design: Multicenter prospective case study.
Materials and Methods: Eighty-eight embryo transfers were performed under abdominal ultrasound guidance in two countries by two authors.(EC, FR) A single or double air bubble was loaded with the embryos using a soft, coaxial, end opened catheters. The embryos were slowly
injected 10–20 mm from the fundus. Air bubble position was recorded immediately, 30 minutes later and when the patient stood
up.
Results: Bubble marker location analysis revealed a random distribution without visible gravity effect when the patients stood up.
The bubble markers demonstrated splitting, moving in all directions and dispersion.
Conclusion: Air bubbles move and split frequently post ET with the patient in the horizontal position, suggestive of active uterine contractions.
Bubble migration analysis supports a rather random movement of the bubbles and possibly the embryos. Standing up changed somewhat
bubble configuration and distribution in the uterine cavity. Gravity related bubble motion was uncommon, suggesting that horizontal
rest post ET may not be necessary. This report challenges the common belief that a very accurate ultrasound guided embryo
placement is mandatory. The very random bubble movement observed in this two-center study suggests that a large “window” of
embryo placement maybe present. 相似文献
82.
Vicdan K Işik AZ Akarsu C Sözen E Cağlar G Dingiloğlu B Tuncay G 《European journal of obstetrics, gynecology, and reproductive biology》2007,134(1):79-82
OBJECTIVE: The purpose of this study was to determine the incidence of retained embryos and its impact on pregnancy outcome in the absence of known risk factors like blood and mucus in the transfer catheter. The factors that could be associated with embryo retention were also investigated. STUDY DESIGN: The results of all embryo transfer procedures performed at Ankara IVF Center between January 2003 and December 2005 were analyzed retrospectively. Three hundred and five embryo transfers, in which the transfer catheter was contaminated with blood or mucus, were excluded and the remaining 1,454 embryo transfers, with clean catheter, were enrolled into the study. Both fresh (n=1,422) and frozen (n=32) embryo transfers were included. RESULTS: The overall incidence of retained embryos during study period was 2.8% (41/1,454) following a clean initial embryo transfer. The mean age of the female partner, mean number of retrieved oocytes, MII oocytes, fertilized oocytes and the embryos transferred were similar in patients with and without retained embryos. The 1,454 embryo transfers performed during the study period resulted in 712 pregnancies (49%), of which 639 proved to be clinical pregnancies with a rate of 44%. The implantation rate was 22.8%. Pregnancy outcomes including positive beta-hCG (58.5% versus 48.7%), biochemical (4.7% versus 5.1%) and clinical pregnancy rates (53.6% versus 43.6%), implantation rate (24% versus 22.7%) and multiple pregnancy rate (36.3% versus 44.7%) were not significantly different between patients with and without retained embryos. An influence of individual physicians and embryologists on the frequency of retained embryos was not detected. The type of embryo transfer catheter used did not show any difference in terms of embryo retention. The cleavage stages of embryos were not different between groups. Although it was not statistically significant, the number of embryos transferred appeared to be a potentially confounding factor for retained embryos (p=0.053) and it might be significant in a slightly larger sample. When transfer of one or two embryos was compared to three or more embryos, the likelihood of retained embryos increased from 1.2% (4/321) to 3.2% (37/1,133). CONCLUSION: Retained embryos in the transfer catheter and immediate retransfer of them have no adverse impact on clinical pregnancy and implantation rates unless other previously reported signs of difficult transfer are also observed. 相似文献
83.
目的:探究在行体外受精助孕技术中行全部胚胎冷冻的患者取卵后卵巢恢复时间及不同时间间隔后行冻融胚胎移植的妊娠结局。方法:采用前瞻性队列研究,随访了2017年7月至12月期间于山东大学附属生殖医院行辅助生殖助孕技术助孕、行全部胚胎冷冻的53例患者,比较取卵后第1次月经周期第2~4日血雌二醇的水平,对比患者取卵后第2次月经周... 相似文献
84.
目的 研究第3天(day 3,D3)卵裂期胚胎质量与胚胎培养液中线粒体DNA(mitochondrial DNA,mtDNA)拷贝数的关系.方法 选择2017年7月至2018年10月于成都中医药大学医学与生命科学学院/附属生殖妇幼医院生殖医学中心行辅助生殖技术助孕的67个新鲜卵裂期胚胎移植周期的共93个胚胎,应用数字聚... 相似文献
85.
宫颈妊娠同时合并卵巢妊娠是一种特殊类型的异位妊娠,其发生率远低于输卵管妊娠,但风险极大,诊治不及时可能造成严重不良后果,需尽早识别,力争做到早诊断、早治疗。近年随着辅助生殖技术的快速发展,宫颈妊娠同时合并卵巢妊娠的发生率均较前升高,但彩色超声技术的进步有助于此种类型异位妊娠的早期诊断。现回顾中国人民武装警察部队特色医学中心妇科2022年收治的1例体外受精-胚胎移植术后宫颈妊娠同时合并卵巢妊娠的病例,该患者同时发生两种类型的异位妊娠,极为罕见和特殊,由于该病例早期诊断及时,通过个体化的药物治疗+宫颈管搔刮,避免了有创手术、动脉栓塞等操作,做到了患者副损伤、费用及痛苦的最小化,结局满意。 相似文献
86.
With the development of human assisted reproductive technology (ART), an objective, accurate, and non-invasive method to assess the quality and viability of ooc... 相似文献
87.
目的分析早期卵裂期与囊胚期胚胎培养与移植结局。方法选取因单纯输卵管因素及男性因素接受体外受精-胚胎移植患者,其中选择卵裂期胚胎移植者110例,选择囊胚期胚胎培养与移植者57例。受精后早期胚胎培养采用G1,囊胚培养采用G2。比较两组的获卵数、受精数、胚胎植入率、妊娠率以及囊胚组囊胚形成率、移植胚胎数与多胎率、妊娠率的关系。结果囊胚组获卵率、受精率分别比早期胚胎组多4.98及3.98个;采用G1/G2序贯培养,囊胚形成率为32.9%;两组胚胎植入率、临床妊娠率分别为31.2%、42.1%及11.5%、25.5%,囊胚组明显高,差异有显著性;移植2个囊胚与移植3个囊胚比较,妊娠率无显著差异,但可减少双胎妊娠例数。结论囊胚期胚胎移植可明显提高胚胎植入率及妊娠率。移植两个囊胚为IVF-ET的最好选择。 相似文献
88.
目的 探讨神经纤维丝蛋白(NF)、神经烯醇化酶(NSE)和突触素(SYN)在人胚胎舌组织不同发育阶段的分布特征。 方法 应用免疫组织化学法,检测第2~4个月胎龄段共16份人胚胎舌组织内NF、NSE和SYN蛋白的表达,分析其变化规律。 结果 第2~4个月龄段,NF、NSE和SYN蛋白在人胚舌组织内均有阳性表达。随着胎龄的增大,NF、NSE和SYN在舌组织内阳性表达数量增多,表达强度逐渐增强。第2个月龄时,NF、NSE和SYN蛋白呈少量弱阳性表达,阳性表达强度值分别是135.83±24.62、136.57±15.23和139.84±21.40。第3个月龄时,NF、NSE和SYN阳性表达强度值分别是96.04±23.37、94.89±22.52和90.65±21.08。第4个月胎龄时,NF、NSE和SYN阳性表达强度值分别是79.02±20.90、76.78±21.27和83.43±25.90。应用 One-Way ANOVA和 LSD-t统计学方法,分析第2~4个月龄段人胚胎舌组织内NF、NSE和SYN蛋白的各自阳性表达强度值,P<0.01。 结论 第2~4个月龄段,人胚胎舌组织内NF、NSE和SYN的表达强度值随胎龄增大而降低,它们均参与调控人胚胎舌内神经系统和舌肌的分化发育。 相似文献
89.
目的:探讨阻断CD86协同刺激分子对自然流产模型孕鼠TGF-β1和PAI-1的表达及妊娠结局的影响。方法:实验组于妊娠第4.5天腹腔注射大鼠抗小鼠CD86单抗,实验对照组注射大鼠同型IgG2b,而正常妊娠组不做任何处理。于妊娠第13.5天计算胚胎吸收率,用免疫组化测定TGF-β1和PAI-1的表达。结果:(1)实验组的胚胎吸收率显著低于实验对照组(P〈0.05)。(2)实验组蜕膜细胞中TGF-β1和PAI-1的表达均显著高于实验对照组(P〈0.05)。结论:妊娠早期阻断CD86协同刺激分子信号途径可使母胎界面中的TGF-β1和PAI-1分别通过各自不同的途径来发挥免疫耐受作用并且使自然流产模型孕鼠的胚胎吸收率降低至正常妊娠水平。 相似文献
90.