scholarly journals Association between Number of Formed Embryos, Embryo Morphology and Clinical Pregnancy Rate after Intracytoplasmic Sperm Injection

2016 ◽  
Vol 38 (09) ◽  
pp. 465-470 ◽  
Author(s):  
Caroline Luz ◽  
Vanessa Giorgi ◽  
Marcela Coelho Neto ◽  
Wellington Martins ◽  
Rui Ferriani ◽  
...  
Keyword(s):  
Pregnancy Rate ◽  
Intracytoplasmic Sperm Injection ◽  
Clinical Pregnancy ◽  
Clinical Pregnancy Rate ◽  
Embryo Morphology

The use of intracytoplasmic sperm injection for the treatment of severe and extreme male infertility

1995 ◽  
Vol 7 (2) ◽  
pp. 237 ◽  
Author(s):  
H Bourne ◽  
N Richings ◽  
O Harari ◽  
W Watkins ◽  
AL Speirs ◽  
...  
Keyword(s):  
Male Infertility ◽  
Pregnancy Rate ◽  
Intracytoplasmic Sperm Injection ◽  
Fertilization Rate ◽  
Clinical Pregnancy ◽  
Clinical Pregnancy Rate ◽  
Male Factor ◽  
Osmotic Swelling ◽  
Fresh Embryos ◽  
Normal Fertilization

The outcome of treatment by intracytoplasmic sperm injection (ICSI) is described for patients with severe male infertility. In 296 consecutive cycles, a normal fertilization rate of 69% was achieved with 288 cycles (97%) resulting in embryos suitable for transfer. A total of 32 clinical pregnancies were achieved from the transfer of fresh embryos (clinical pregnancy rate of 12% per transfer) and an additional 44 clinical pregnancies were obtained after the transfer of frozen-thawed embryos (clinical pregnancy rate of 16% per transfer). Overall, 57 of the 76 pregnancies were ongoing or delivered. An analysis of outcome in 5 male factor subgroups revealed no significant differences in pregnancy and implantation rates between the categories. However, the fertilization rate was significantly lower in patients with oligoasthenoteratozoospermia and significantly higher in those patients for whom epididymal sperm were used for insemination. The treatment of patients with extreme male infertility is also described; normal fertilization and embryo development were obtained using ICSI in patients with mosaic Klinefelter's syndrome, severe sperm autoimmunity, round-headed acrosomeless sperm (globozoospermia), completely immotile sperm selected by hypo-osmotic swelling and sperm isolated from testicular biopsies. Three ongoing pregnancies were obtained from 6 patients for whom testicular sperm were used. These results demonstrate the value of ICSI in the management of severe male infertility, however, the treatment of some types of extreme male infertility using ICSI may be limited.

P–226 Failure of blastocoele expansion within the first two hours post thawing could halve the chances of implantation

2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
O Delikari ◽  
E Linara-Demakakou ◽  
A Mclaughlin ◽  
C Porta ◽  
N Macklon ◽  
...  
Keyword(s):  
Pregnancy Rate ◽  
Time Lapse ◽  
Small Sample ◽  
Clinical Pregnancy ◽  
Clinical Pregnancy Rate ◽  
Embryo Morphology ◽  
Patient Counselling ◽  
The Third ◽  
Expansion Time ◽  
Frozen Embryo Transfers

Abstract Study question The aim of this study was to evaluate the influence of blastocoele re-expansion time of warmed vitrified blastocysts on clinical pregnancy outcome. Summary answer Clinical pregnancy rate was significantly higher after transfer of warmed vitrified blastocysts that were fully expanded within 2 hours post thaw. What is known already The number of blastocysts being vitrified worldwide has increased dramatically over recent years. A combination of factors has led to this including the introduction of vitrification, an increase in freeze-all policies, single embryo transfer and an increase in preimplantation genetic testing. Currently, blastocyst re-expansion after thawing is used to indicate the survival status of the blastocyst and when combined with the morphology of blastocyst can predict its reproductive potential. While time taken for blastocoele re-expansion has been proposed to be a biomarker of viability, its value in clinical practice remains unclear. Study design, size, duration This retrospective study analysed outcomes in patients who had frozen embryo transfers between June-December 2020. 233 embryos were reviewed with time-lapse to assess their blastocoele expansion post-warming and three groups were identified. The first included fully expanded blastocysts post-warming. The second group included partially expanded blastocysts and the third non-expanded blastocysts. In addition, the groups were subcategorised into two further categories depending on whether they took less or more than 2 hours to complete expansion. Participants/materials, setting, methods 233 vitrified/warmed embryos from 216 patients were analysed using time-lapse incubators. The first group included 134 blastocysts, of which 70 were fully expanded within 2 hours and 64 after 2 hours post thaw. The second group had 70 embryos of which 45 expanded partially within 2 hours and 25 after 2 hours. The third had 28 embryos that had no expansion within the first 2 hours (n = 20) or after 2 hours (n = 8). Main results and the role of chance Blastocysts were collapsed by laser prior to vitrification. Single blastocyst transfer was performed for all patients. The mean transferred embryo age was 32.1± 5.5 and the recipient’s was 37.5± 5.9. Fully expanded blastocysts (n = 70) within 2 hours demonstrated a clinical pregnancy rate (CPR) of 57% compared with 38% from those that expanded fully after 2 hours (n = 64) (p = 0.02). Blastocysts with some form of expansion (full or partial) within 2 hours post-warming (n = 115) were associated a significantly higher CPR compared to those expanding after 2 hours (n = 89). The CPR was 55% and 39% respectively (p = 0.02). Embryos that showed no expansion (n = 20) within the first 2 hours post thaw resulted in CPR of 28%. Interestingly, embryos that showed no expansion after 2 hours resulted in no pregnancy. When combining morphology as a selection criterion, expansion within 2 hours of thawing was associated with a CPR of 62.5% for ≥4AB embryos, 50% for BB embryos and 45% for poorer embryos ≤CB.In conclusion, failure of blastocoele expansion post 2 hours reduced by half the chances of clinical pregnancy (p = 0.03). Combination of the degree of re-expansion and embryo morphology is an important predictor tool to improve clinical outcomes in frozen embryo transfers. Limitations, reasons for caution This study uses a small sample size of patients. The data are observational and were retrospectively analysed so unknown confounders could not be assessed. The addition of more cycles and further multivariate analysis, is essential for confirmation of the findings. However, initial results are very reassuring. Wider implications of the findings: The degree of speed of re-expansion post warming should be used as a predictor for prioritisation of embryos for transfer. Owing to these preliminary findings there is rationale for a larger scale study combining other morphological indicators that could further assess implantation indicators and assist patient counselling Trial registration number Not applicable

scholarly journals Intracytoplasmic sperm injection with fresh versus cryopreserved testicular sperm in azoospermic patients

2019 ◽  
Vol 24 (1) ◽  
Author(s):  
Kani M. Falah
Keyword(s):  
Pregnancy Rate ◽  
Live Birth ◽  
Intracytoplasmic Sperm Injection ◽  
Birth Rate ◽  
Live Birth Rate ◽  
Fertilization Rate ◽  
Clinical Pregnancy ◽  
Clinical Pregnancy Rate ◽  
Obstructive Azoospermia ◽  
Testicular Sperm

Abstract Background The purpose of this study is to compare the outcome of intracytoplasmic sperm injection (ICSI) using fresh sperm versus frozen-thawed sperm in both obstructed and non-obstructed azoospermias. This retrospective study included 159 ICSI cycles from 126 couples. In 91 obstructed azoospermia cases, 66 cycles were treated with fresh testicular sperm and 25 cycles were treated with frozen-thawed testicular samples. In 68 non-obstructed azoospermia cases, 32 cycles were treated with fresh testicular sperm and 36 cycles were treated with frozen-thawed testicular sperm, and the main measure and outcomes calculated are fertilization rate, clinical pregnancy, and live birth rate. Results In case of obstructed azoospermia, there were no statistically significant differences between fresh sperm and frozen-thawed testicular sperm used for ICSI regarding fertilization rate, clinical pregnancy rate, and live birth rate as shown (57%, 47%, 0.093 p value; 23.7%, 17.4%, 0.54 p value; and 11.9%, 8.7%, 0.68 p value, respectively). Non-obstructed azoospermia cases also show no significant differences in fertilization rate (37%, 36%, 0.91 p value), clinical pregnancy rate (20%, 14.3%, 0.58 p value), and live birth rate (4%, 3.6%, 0.93 p value). Conclusion Cryopreservation of testicular sperm is reliable if carried out before ovulation induction especially in cases with non-obstructive azoospermia

scholarly journals Preimplantation Genetic Testing for Aneuploidies Improve the Clinical Pregnancy Outcome of Patients With AZFc Microdeletion

2021 ◽  
Author(s):  
xiliang wang ◽  
Yankun Wang ◽  
kaibo hou ◽  
dongmei hao ◽  
jinyan zhang ◽  
...  
Keyword(s):  
Genetic Testing ◽  
Pregnancy Rate ◽  
Live Birth ◽  
Intracytoplasmic Sperm Injection ◽  
Birth Rate ◽  
Live Birth Rate ◽  
Clinical Pregnancy ◽  
Clinical Pregnancy Rate ◽  
Preimplantation Genetic Testing ◽  
Morphological Criteria

Abstract BackgroundMicrodeletions of AZF are the most common factor causing male infertility except Klinefelter syndrome. AZF patients are able to father babies through intracytoplasmic sperm injection (ICSI) and in vitro fertilization (IVF), and the ICSI embryos for IVF can be scored based on morphological criteria. However, the clinical pregnancy rate and the live birth rate are unsatisfactory.ResultsHere, we investigated the outcomes of using preimplantation genetic testing for aneuploidies (PGT-A) in families with AZFc microdeletions. A total of 26 intracytoplasmic sperm injection (ICSI) cycles were performed in 22 families, 25 ICSI cycles were performed, and 81 embryos underwent PGT-A. Among them, 48 were euploid embryos (23 females and 25 males), 30 were aneuploid embryos, and three embryos did not meet the quality control standards. Thirteen ICSI cycles with female euploid embryos and one ICSI cycle with male euploid embryos entered the stage of embryo implantation. Finally, the clinical pregnancy rate was 100% (14/14), and the live birth rate was 85.7% (12/14).ConclusionCompared with other published results, PGT-A increased the chance of fertility in AZFc microdeletion patients.

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