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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Li, Mei Ma, Shui-Ying Yang, Hui-Jun Wu, Ke-Liang Zhong, Wan-Xia Yu, Guan-Ling Chen, Zi-Jiang |
| Description | Author Affiliation: Li M ( Center for Reproductive Medicine, Provincial Hospital Affiliated to Shandong University, Jinan, People's Republic of China.) |
| Abstract | PURPOSE: This retrospective study analyzed fertilization protocols and pregnancy outcomes for oocytes with with narrow perivitelline space and heterogeneous zona pellucid (NPVS/HZP). METHODS: In 63 in-vitro fertilization cycles filled with NPVS/HZP oocytes (abnormal oocytes group) and 521 cycles with normal oocytes (normal oocytes group), major clinical and laboratory parameters were recorded and compared in different fertilization cycles (conventional IVF cycles, rescue ICSI cycles, and traditional ICSI cycles). RESULTS: NPVS/HZP oocytes meant lower MIIoocytes rates in both IVF and ICSI cycles compared with normal oocytes (p < 0.05). The 2PN rates for abnormal oocytes were significantly lower than those for normal oocytes in both conventional IVF cycles (58.8% VS 71.3%, P < 0.05) and rescue ICSI cycles (58.0% VS 78.0%, P = 0.0000). The high-quality embryo rates in normal oocytes groups were significantly higher than those in abnormal oocytes groups in different fertilization cycles (52.2% VS 35.0%, P < 0.01; 42.9% VS 23.9%, P < 0.001; 50.6% VS 31.0%, P = 0.0000, respectively). No clinical pregnancy was obtained from abnormal oocytes in 11 conventional IVF cycles. The clinical pregnancy rates in rescue ICSI and traditional ICSI cycles were comparatively lower in abnormal oocytes groups, but there was no significant difference as compared with normal oocytes groups (35.0% VS 48.1% and 26.7% VS 50.7%, P > 0.05, respectively). CONCLUSIONS: Retrieval of oocytes characterized by NPVS/PZP from cycle to cycle was one of the reasons for obscure infertility. ICSI may be the right way to avoid fertilization failure and get pregnancy in women with NPVS/HZP oocytes. |
| File Format | HTM / HTML |
| ISSN | 10580468 |
| e-ISSN | 15737330 |
| DOI | 10.1007/s10815-013-0169-9 |
| Journal | Journal of Assisted Reproduction and Genetics |
| Issue Number | 3 |
| Volume Number | 31 |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2014-03-01 |
| Publisher Place | Netherlands |
| Access Restriction | Open |
| Subject Keyword | Discipline Reproductive Medicine Discipline Genectics Infertility, Female Oocytes Growth & Development Sperm Injections, Intracytoplasmic Zona Pellucida Embryo Transfer Fertilization In Vitro Pregnancy Pregnancy Outcome Pregnancy Rate Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Developmental Biology Reproductive Medicine Genetics (clinical) Obstetrics and Gynecology |
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