Uzun, Kübra NurCıncık, MehmetSelam, BelginTakmaz, ÖzgüçUyar, Esra2024-07-122024-07-122021Uzun, K.N., Cıncık, M., Selam, B., Takmaz,. Ö. ve Uyar, E. (2021)Comparison of the rates for reaching the blastocyst stage between normal and abnormal pronucleus embryos monitored by a time-lapse system in IVF patients. Journal of the Turkish-German Gynecological Association, Erkan Mor. 22(2), s. 120-126.1309-038010.4274/jtgga.galenos.2020.2020.00332-s2.0-8510798505610.4274/jtgga.galenos.2020.2020.0033https://doi.prg/10.4274/jtgga.galenos.2020.2020.0033https://hdl.handle.net/20.500.12415/3861Objective: To compare the rates of blastocyst stage development between embryos fertilized after one (MPN) or more than two pronucleus (PN) (3PN, 4PN-multiPN) with those after 2PN in the same patients. Material and Methods: The embryos of patients who had both abnormal PN (MPN, 3PN or 4PN) and normal fertilized (2PN) embryos after intracytoplasmic sperm injection (ICSI) fertilization, were followed with a time-lapse system following the ICSI procedure. The rates of reaching the blastocyst stage were compared between normal and abnormally fertilized embryos. Results: One thousand eight hundred and twenty oocytes were collected from 140 patients and 1280 (70.3%) of them were fertilized. MPN, 2PN and 3PN, 4PN (multiPN) ratios of the embryos in the pronuclear stage were 11.4%, 83.13% and 5.47%, respectively. The rates of reaching the blastocyst stage among these embryos were 17.1%, 60.8% and 42.8% for MPN, 2PN and multiPN, respectively. The proportion reaching blastocyst development was significantly higher following 2PN compared to those after MPN and multiPN (p<0.05). Embryos developing after multiPN had significantly higher rates of reaching the blastocyst stage compared to those after MPN (p<0.01). Conclusion: The majority of abnormally pronucleated embryos arrest without reaching the blastocyst stage. MultiPN embryos have a higher rate of blastocyst development than MPN embryos. (J Turk Ger Gynecol Assoc 2021; 22: 120-6)eninfo:eu-repo/semantics/openAccessBlastocystICSIMPNmultiPNtime-lapseComparison of the rates for reaching the blastocyst stage between normal and abnormal pronucleus embryos monitored by a time-lapse system in IVF patientsArticle1262Q312048315022