scholarly journals Clinical Outcomes of Rescue Intracytoplasmic Sperm Injection at Different Timings Following In Vitro Fertilization

2021 ◽  
Author(s):  
Yuki Shiraiwa ◽  
Noritoshi Enatsu ◽  
Kazuki Yamagami ◽  
Koyu Furuhashi ◽  
Toshiroh Iwasaki ◽  
...  
Keyword(s):  
In Vitro Fertilization ◽  
Intracytoplasmic Sperm Injection ◽  
Polar Body ◽  
Fertilization Rate ◽  
Optimal Timing ◽  
Vitro Fertilization ◽  
Polar Body Analysis ◽  
Second Polar Body ◽  
Rescue Icsi

Background: Although rescue intracytoplasmic sperm injection (r-ICSI) is extensively used worldwide, the indication of r-ICSI and its optimal timing remains obscure. This study aimed to assess the outcomes of r-ICSI following in vitro fertilization in different timings when fertilization is confirmed. Methods: This study included 5,156 cycles (47,785 eggs). Fertilization was confirmed by polar body analysis after 4 and 6 hr of coincubation of the sperm and oocyte. Oocytes that underwent IVF were divided into two groups based on the time when a second polar body was detected in more than 30% of all oocytes (Four-hr group and six-hr group). If the second polar body was not detected or was present in less than 30% of all oocytes after six hr of coincubation, rescue-ICSI (r-ICSI) was performed for oocytes without a second polar body (r-ICSI group). Results: The fertilization rates of two pronuclear (2PN) oocytes in the three groups (Four-hr group, six-hr group, and r-ICSI group) were 70.7%, 51.3%, and 58.0%, respectively. The blastocyst formation rates were 62.8%, 53.4%, and 42.9%, respectively. Conclusion: Performing r-ICSI after six hr of coincubation can salvage cases with fertilization failure in IVF. The higher fertilization rate of r-ICSI indicates that all oocytes without signs of fertilization after six hr of coincubation should undergo r-ICSI.

scholarly journals Effect of sperm DNA fragmentation on clinical outcomes for Chinese couples undergoing in vitro fertilization or intracytoplasmic sperm injection

2016 ◽  
Vol 44 (6) ◽  
pp. 1283-1291 ◽  
Author(s):  
Lin-Tao Xue ◽  
Rui-Xue Wang ◽  
Bing He ◽  
Wei-Ying Mo ◽  
Li Huang ◽  
...  
Keyword(s):  
In Vitro Fertilization ◽  
Dna Fragmentation ◽  
Intracytoplasmic Sperm Injection ◽  
Fertilization Rate ◽  
Sperm Dna Fragmentation ◽  
Roc Curve Analysis ◽  
Vitro Fertilization ◽  
Fragmentation Rate ◽  
Sperm Dna

Objective To investigate the effect of sperm DNA fragmentation on the fertilization rate, embryo development and pregnancy outcome of in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) in a cohort of Chinese couples. Methods Infertile couples that had undergone assisted reproductive technology at our centre between January 2011 and December 2013 were included in this retrospective study. Fractions of prepared sperm samples were evaluated for sperm DNA fragmentation on the day of oocyte recovery. Results Of the 550 couples selected, 415 had undergone IVF and 135 ICSI. Sperm DNA fragmentation rate was significantly negatively correlated with the fertilization rate in the ICSI cycles but not the IVF cycles. No association was found between sperm DNA fragmentation and cleavage rate or good quality embryo formation rates in IVF or ICSI cycles. Receiver operating characteristic (ROC) curve analysis showed that the sperm DNA fragmentation rate was a statistically significant prognostic indicator of the clinical fertilization rate in ICSI cycles; a rate > 22.3% was associated with a lower fertilization rate following ICSI compared with a rate ≤ 22.3%. Conclusions High values of sperm DNA fragmentation were associated with a low fertilization rate following ICSI but were not associated with alterations in pregnancy or live birth rates in either ICSI or IVF in this cohort of Chinese couples.

scholarly journals Hubungan Anti-Mullerian Hormone (AMH) pada Long dan Short Protocol Terhadap Fertilization Rate Pasien In Vitro Fertilization (IVF)

2021 ◽  
Vol 4 (2) ◽  
pp. 151-161
Author(s):  
Rizki Amalia Wahid ◽  
◽  
Edwin Armawan ◽  
ono Djuwantono
Keyword(s):  
In Vitro Fertilization ◽  
Intracytoplasmic Sperm Injection ◽  
Fertilization Rate ◽  
Chi Square ◽  
Vitro Fertilization ◽  
Fertility Clinic ◽  
Long Protocol

Abstrak Tujuan: Untuk mengevaluasi pengaruh kadar anti-mullerian hormone (AMH) dengan fertilization rate (FR) dan menilai perbedaan pengaruh jenis protokol (long protocol (LP) dan short protocol (SP)) pada tiap tingkat cadangan ovarium terhadap FR pada pasien in vitro fertilization (IVF) dengan Intracytoplasmic Sperm Injection. Metode: Data sekunder dari rekam medis pasien yang menjalani IVF di Aster Fertility Clinic Rumah Sakit Umum Pendidikan dr. Hasan Sadikin pada tahun 2016-2020 dan Bandung Fertility Centre Rumah Sakit Ibu Anak Limijati pada tahun 2018-2019. Penelitian ini analitik observational dengan metode Cohort retrospektif. Hubungan antara dua data kategorik diuji dengan uji chi-square dan uji Kruskal-Wallis digunakan pada data numerik dengan distribusi yang tidak rata pada lebih dari 2 kelompok, Hasil: Hasil data diperoleh nilai rerata kadar AMH secara keseluruhan adalah 3.30 ng/ml dengan rerata capaian FR sebesar 71.97%. Berdasarkan metode IVF yang dipilih, mayoritas pasien menjalani pengobatan SP 54.4% (rerata FR 72.80%) dibandingkan dengan LP 45.6% (rerata FR 70.97%). Tidak ditemukan hubungan yang bermakna antara kadar AMH dengan FR, dinyatakan dengan nilai p=0.977. Kadar AMH terhadap FR bila dipisahkan menurut protokol terapi yang diberikan tidak menunjukkan perbedaan yang bermakna pada masing-masing protokol (LP p=0,763; SP p=0,843). Mengenai hubungan antara protokol IVF dengan FR juga tidak diperoleh perbedaan yang signifikan secara statistik dengan nilai p=0,27 (RR 1.17 (0.62-2.15); CI 95%). Penggobatan menggunakan LP (p=0,770) maupun SP (p=0.845) tidak memberikan pengaruh yang bermakna terhadap FR pada setiap kategori AMH. Kesimpulan: Tidak ada pengaruh kadar AMH dan protokol terapi terhadap FR. Kata kunci : In Vitro Fertilization, Fertilization Rate, Anti-Mullerian Hormone, Protokol Stimulasi Ovarium

6 EQUINE SPERM INDUCES PRONUCLEAR FORMATION BY INTRACYTOPLASMIC SPERM INJECTION IN BOVINE, SWINE, AND FELINE OOCYTES INDEPENDENTLY OF CHEMICAL ACTIVATION ASSISTANCE

2015 ◽  
Vol 27 (1) ◽  
pp. 95
Author(s):  
M. B. Rodríguez ◽  
A. Gambini ◽  
R. J. Bevacqua ◽  
D. F. Salamone
Keyword(s):  
Intracytoplasmic Sperm Injection ◽  
Electric Pulse ◽  
Polar Body ◽  
Chemical Activation ◽  
In Vitro Production ◽  
Vitro Fertilization ◽  
Chi Squared ◽  
Second Polar Body ◽  
Pronuclear Formation

Interspecific intracytoplasmic sperm injection (ICSI) is a valuable tool to study early events of fertilization in species for which oocyte availability is reduced. Equine in vitro fertilization remains unsuccessful and ICSI is the technique of choice for the in vitro production of high-value embryos. Therefore, the objective of this study was to evaluate the rate of pronuclear (PN) formation after ICSI with stallion sperm in bovine, swine and feline oocytes with or without chemical activation assistance. Ovaries from cows and pigs were collected at abattoirs whereas gonads from female domestic cats were obtained from ovariectomized animals at veterinary sterilization centers. Cumulus-oocyte complexes were matured in TCM-199 supplemented following standard protocols for each species. ICSI was performed in 100-μL drops of TALP-HEPES, using frozen-thawed semen from one stallion. Spermatozoa were held separate in 3-μL droplets of 7% (vol/vol) polyvinylpyrrolidone, where one of them was immobilized by swiping the injection pipette across its tail, and then injected into the matured oocyte. After ICSI, some oocytes were chemically activated with 5 μM ionomycin for 4 min (cow and cat) or with an electric pulse (sow) followed by 3 h in culture medium to allow extrusion of the second polar body and then exposure to 1.9 mM 6-DMAP solution for 3 h. Embryos were cultured in SOF medium. After 17 h of culture, embryos were stained with propidium iodide to identify the percentage of oocytes activated and with PN. Haploid and diploid parthenogenetic controls were included. Cleavage (48 h after activation) and blastocyst formation (7–8 days) of the partenogenetic control groups were assessed. There were no statistical differences (chi-squared analysis) in PN formation between the activated and nonactivated groups within species. When the activated group was compared between the different species, no differences were observed. However, for the nonactivated group, significant differences were observed between species. The feline oocyte showed the higher percentage of PN and activation, whereas the bovine oocyte exhibited the lower rate of PN formation (cat: 22/27, 81.48%; swine: 19/39, 71.64%; cow:18/63, 43.07%). Our results suggest that the feline oocyte can be used as model to study fertilization events associated with the stallion sperm due to the higher efficiency in supporting PN formation. Our results indicate that the equine sperm is capable of inducing PN formation in these 3 species without further chemical activation assistance.

scholarly journals Production of viable bovine embryos by intracytoplasmic sperm injection of oocytes harvested from slaughtered old cows

2021 ◽  
Vol 26 (1) ◽  
pp. 7-14
Author(s):  
Mihai Cenariu ◽  
Mihai Borzan ◽  
Sorin Dan ◽  
Remus Chiorean ◽  
Emoke Pall
Keyword(s):  
In Vitro Fertilization ◽  
Intracytoplasmic Sperm Injection ◽  
Fertilization Rate ◽  
Fertilization Success ◽  
Vitro Fertilization ◽  
Bull Semen ◽  
Intracytoplasmic Injection ◽  
Lower Fertility

Abstract: (1) Background: Intracytoplasmic sperm injection (ICSI) is currently used to increase fertilization success by avoiding several oocyte or sperm deficiencies that would normally prevent conception after in vivo fertilization or classical in vitro fertilization. This paper aimed at improving the in vitro fertilization protocol of bovine oocytes, harvested from old cows after slaughtering, using intracytoplasmic sperm injection; (2) Methods: Oocytes were harvested by puncture of follicles from ovaries obtained from slaughtered old cows, followed by aspiration. Out of the 127 cumulus-oocyte complexes that were harvested, 84 (66.14%) were declared suitable for cultivation, after morphological evaluation. Following oocyte maturation for 22 hours, 77 cumulus-oocyte complexes were morphologically intact and could undergo the steps required for intracytoplasmic injection of spermatozoa. Frozen-thawed bull semen was used for ICSI and the 77 fertilized oocytes were kept for 24 hours in an atmosphere enriched with 5% CO2.; (3) Results: Fertilized oocytes transformed into 46 zygotes (fertilization rate of 59.74%), while after 168 h of cultivation 38 transferable compact morulae or early blastocysts were obtained; (4) Conclusions: Intracytoplasmic sperm injection can represent a viable alternative to classical IVF, when oocytes or sperm with lower fertility are used.

Comparison of the Outcome of Conventional in vitro Fertilization and Intracytoplasmic Sperm Injection in Moderate Male Infertility from Ejaculate

2013 ◽  
Vol 94 (1) ◽  
pp. 111-116 ◽  
Author(s):  
Bao-Guo Xie ◽  
Yuan-Hua Huang ◽  
Wei-Jie Zhu ◽  
Song Jin
Keyword(s):  
In Vitro Fertilization ◽  
Male Infertility ◽  
Intracytoplasmic Sperm Injection ◽  
Semen Analysis ◽  
Implantation Rate ◽  
Fertilization Rate ◽  
Vitro Fertilization ◽  
Good Quality Embryo ◽  
Implantation And Pregnancy Rates

Objective: To evaluate whether couples with moderate male infertility should be treated with conventional in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI). Patients and Methods: A total of 249 couples with moderate male infertility undergoing their first IVF/ICSI cycle were enrolled in the study. The couples were divided into two groups according to the results of semen analysis: moderate oligozoospermia (O group) and moderate oligoasthenozoospermia (OA group). Sibling oocytes were randomized into groups to be inseminated either by conventional IVF or ICSI. Fertilization rate, embryo quality, implantation rate, and clinical pregnancy rate were examined. Results: There was no difference in the fertilization, implantation, and pregnancy rates between conventional IVF and ICSI in either the O group or OA group (p > 0.05). Additionally, in the OA group, the good quality embryo rate was similar after IVF or ICSI (p > 0.05). However, in the O group, the good quality embryo rate was significantly higher after ICSI than after IVF (p < 0.05). Conclusions: Couples with moderate oligozoospermia or moderate oligoasthenozoospermia did not influence the major indices of IVF. Because of the uncertainties concerning the safety of ICSI, couples with moderate oligozoospermia or moderate oligoasthenozoospermia need not be subjected to this procedure.

scholarly journals Early Rescue Intracytoplasmic Sperm Injection in Partial Fertilization Failure Is Necessary and Safe: A Retrospective Analysis of 1223 Patients

2020 ◽  
Author(s):  
Jun Zeng ◽  
Zhongyuan Yao ◽  
Yeqing Zhang ◽  
Fen Tian ◽  
Tingting Liao ◽  
...  
Keyword(s):  
Polar Body ◽  
Fertilization Rate ◽  
Fertilization Failure ◽  
Short Term ◽  
Vitro Fertilization ◽  
Long Term Follow Up ◽  
The Difference ◽  
Second Polar Body

Abstract BACKGROUND: Total or near total fertilization failure remains inevitable in conventional in vitro fertilization (IVF). The experts searched for the release of the second polar body 6 h after initial insemination, and rescued those oocytes with unclear second polar body by ICSI (early R-ICSI). Studies found that early R-ICSI can effectively decrease complete IVF fertilization failure and excessive ICSI treatment.METHODS: We performed a retrospective study in 16,769 patients (short-term IVF, n=12,094; ICSI, n=3,452; early R-ICSI, n=1,223) who received IVF/ICSI treatment in our hospital from January 2009 to October 2018. Fertilization and clinical outcomes were compared among those three groups.RESULTS: When considering the R-ICSI embryos in the early R-ICSI group independently, the rates of fertilization and day-3 cleaved embryos in 2PN oocytes were comparable, the rates of fertilization (2PN) and high-quality embryos were lower, whereas the multi-PN fertilization rate (3.27%) was significantly higher than the ICSI group (1.26%). The difference of clinical pregnancy rate between the part of transferred R-ICSI embryos (40.81%) and the ICSI group (44.73) remained nonsignificant. Furthermore, the rate of congenital birth defects in the early R-ICSI group (0.99%) was not significantly different from those in the short-term IVF (0.76%) and ICSI groups (1.07%).CONCLUSIONS: Despite the multi-PN fertilization rate, our study highlights early R-ICSI as a safe and effective alternative in assisted reproduction to reduce ICSI utilization. Additional large amount and long-term follow-up studies are needed to further validate the use of early R-ICSI.

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