scholarly journals Impact of Intraendometrial Vascularity on Implantation Rates in Frozen Blastocyst Transfer

2021 ◽  
Vol 15 (4) ◽  
pp. 393-400
Author(s):  
Chaitanya Nagori ◽  
Sonal Panchal ◽  
Manish Thaker ◽  
Jalpa Shah
Keyword(s):  
Blastocyst Transfer ◽  
Implantation Rates

BLASTOCYST IMPLANTATION DURING POST-PARTUM PSEUDOPREGNANCY IN THE RAT

1967 ◽  
Vol 37 (4) ◽  
pp. 385-391 ◽  
Author(s):  
S. J. MANTALENAKIS ◽  
M. M. KETCHEL
Keyword(s):  
Post Partum ◽  
High Rate ◽  
Blastocyst Transfer ◽  
Blastocyst Implantation ◽  
Implantation Rates ◽  
Cervical Stimulation

SUMMARY Five-day blastocysts were transferred to the uteri of rats during post-partum pseudopregnancy. Low implantation rates were observed when blastocysts were transferred on days 5 to 11 of lactation pseudopregnancy to recipients which were suckling their litters. Two incidents of asynchronous implantation occurred. If the suckling young were removed at the time of blastocyst transfer, high rates of implantation were obtained. If the cervix of the recipients was electrically stimulated at the time of the post-partum oestrus, implantation, while delayed, occurred at a high rate even though the recipients were suckling their litters. These results suggest that the cervical stimulation which occurs at copulation is a requirement for implantation in normally mated lactating rats.

Vitrified-warmed blastocyst transfer cycles yield higher pregnancy and implantation rates compared with fresh blastocyst transfer cycles—time for a new embryo transfer strategy?

2011 ◽  
Vol 95 (5) ◽  
pp. 1691-1695 ◽  
Author(s):  
Dandan Zhu ◽  
Juanjuan Zhang ◽  
Shanren Cao ◽  
Junqiang Zhang ◽  
Boon Chin Heng ◽  
...  
Keyword(s):  
Embryo Transfer ◽  
Blastocyst Transfer ◽  
Implantation Rates

scholarly journals comparison between Cleavage Stage versus Blastocyst Stage Embryo Transfer in an Egyptian Cohort Undergoing in vitro Fertilization: A possible Role for Laser Assisted Hatching

2011 ◽  
Vol 5 ◽  
pp. CMRH.S7735 ◽  
Author(s):  
Sherif F. Hendawy ◽  
TA Raafat
Keyword(s):  
Embryo Transfer ◽  
Intracytoplasmic Sperm Injection ◽  
Blastocyst Transfer ◽  
Assisted Hatching ◽  
Vitro Fertilization ◽  
Significant Difference ◽  
Implantation Rates ◽  
Group Ii ◽  
In Pregnancy

Background Extended in vitro embryo culture and blastocyst transfer have emerged as essential components of the advanced reproductive technology armamentarium, permitting selection of more advanced embryos considered best suited for transfer. Aim of study The aim of this study was to compare between cleavage stage and blastocyst stage embryo transfer in patients undergoing intracytoplasmic sperm injection, and to assess the role of assisted hatching technique in patients undergoing blastocyst transfer. Patients and methods This study was carried out on two groups. Group I: 110 patients who underwent 120 cycles of intracytoplasmic sperm injection with day 2-3 embryo transfer—for unexplained infertility or male factor within the previous 3 years. Their data obtained retrospectively from medical records. Group II: 46 age matched infertile female patients undergoing 51 intracytoplasmic sperm injection cycles for similar causes. Patients in Group II were further subdivided into 2 equal subgroups; Group Ila (23 patients), which had laser assisted hatching and Group IIb (23 patients), which did not have assisted hatching. All patients had an infertility workup including basal hormonal profile, pelvic ultrasound, hysterosalpingogram and/or laparoscope and semen analysis of the patient's partner. All patients underwent controlled ovarian hyperstimulation: Using long protocol of ovulation induction. Laser assisted hatching was done for blastocysts of 23 patients. Results Comparison between both groups as regards the reproductive outcome showed a significant difference in pregnancy and implantation rates, both being higher in group II ( P < 0.05) Comparison between both subgroups as regards the reproductive outcome showed a highly significant difference in pregnancy and implantation rates, both being higher in Group IIa ( P < 0.01). There was also a significantly higher rate of multiple pregnancies among Group IIa ( P < 0.05). Conclusion Blastocyst transfer is a successful and improved alternative for patients with multiple failed in vitro fertilization attempts, associated with a significant increase in pregnancy and implantation rates. Furthermore, laser assisted hatching increases implantation and clinical pregnancy rates.

scholarly journals Association Between Morphologic Grading and Implantation Rate of Euploid Blastocyst

2020 ◽  
Author(s):  
Hua Lou ◽  
Na Li ◽  
Yichun Guan ◽  
Yuchao Zhang ◽  
Dayong Hao ◽  
...  
Keyword(s):  
Endometrial Thickness ◽  
Implantation Rate ◽  
Poor Quality ◽  
Blastocyst Transfer ◽  
Significant Difference ◽  
Blastocyst Biopsy ◽  
Implantation Rates ◽  
Post Hoc ◽  
Euploid Embryo ◽  
Frozen Thawed Embryo Transfer

Abstract Objective To determine the association between the morphologic grading and implantation rate of euploid blastocysts in single frozen-thawed embryo transfer (SET) cycles.Design: Retrospective cohort study.Setting: Single university-based fertility centerPatient(s): Women aged 25–40 years undergoing euploid SET from January 2017 to December 2019 were identified.Main Outcomes Measure(s): Implantation rate (IR)Result(s): A total of 271 euploid SET cycles were included. The cycles were divided into three groups based on their morphologic grading before cryopreservation: good-quality (n = 58), average-quality (n = 88) and poor-quality blastocysts (n = 125). Good-quality blastocysts yielded statistically significantly higher implantation rates than poor-quality embryos (79.31% vs. 48%; adjusted odds ratio [OR] 3.269; 95% confidence interval [CI] 1.518–7.040). The OR remained significant after adjusting for maternal age, body mass index (BMI), type of infertility, basal follicle-stimulating hormone (FSH), AMH (anti-Müllerian hormone), peak endometrial thickness, type of SET cycle and day of blastocyst biopsy. According to post hoc analysis of age and the day of trophectoderm (TE) biopsy, the implantation rates in women aged < 35 years were higher after good-quality blastocyst transfer than poor-quality blastocyst transfer (80.39% vs. 48.62%, P = 0.003). Logistic regression analyses that adjusted for these variables identified higher implantation rates (OR 3.478, 95% CI 1.530–7.908) for good-quality blastocysts than for blastocysts that underwent poor-quality cycles, but not in women aged ≥ 35 years (71.43% vs. 62.50%, P = 0.402) (Table 2). The implantation rates were higher among women with good-quality blastocysts on both day 5 and day 6 of TE biopsy than among those with poor-quality blastocysts (day 5, 80.43% vs. 55.77%, P = 0.017; day 6, 75.00% vs. 42.47%, P = 0.074). Day 5 euploid blastocysts had no significant difference in implantation potential compared with similarly graded day 6 euploid blastocysts.Conclusions: Blastocyst morphologic grading was associated with implantation rate for euploid embryo transfers after adjustment for potential confounders. These findings suggest that evaluating blastocyst morphology is critical when selecting the best euploid blastocyst.

Frozen-thawed blastocyst transfer in natural cycle increase implantation rates compared artificial cycle

2019 ◽  
Vol 35 (10) ◽  
pp. 873-877 ◽  
Author(s):  
Daniella Fernanda Cardenas Armas ◽  
Juana Peñarrubia ◽  
Anna Goday ◽  
Marta Guimerá ◽  
Ester Vidal ◽  
...  
Keyword(s):  
Blastocyst Transfer ◽  
Natural Cycle ◽  
Implantation Rates ◽  
Artificial Cycle

Comprehensive chromosome screening significantly improves implantation rates following frozen blastocyst transfer

2010 ◽  
Vol 94 (4) ◽  
pp. S19 ◽  
Author(s):  
J.M. Stevens ◽  
E.S. Surrey ◽  
D.A. Minjarez ◽  
R.L. Gustofson ◽  
W.B. Schoolcraft ◽  
...  
Keyword(s):  
Blastocyst Transfer ◽  
Comprehensive Chromosome Screening ◽  
Implantation Rates

Does Blastocyst Transfer Attenuate the Expected Age-Related Decline in Pregnancy and Implantation Rates?

2000 ◽  
Vol 74 (3) ◽  
pp. S97
Author(s):  
J.A Rodriguez ◽  
D Bookout ◽  
C Hardwick ◽  
D Ward ◽  
J Madden ◽  
...  
Keyword(s):  
Blastocyst Transfer ◽  
Age Related ◽  
Implantation Rates ◽  
In Pregnancy
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