| Cumulative Pregnancy Rate of In Vitro Fertilization and Embryo Transfer With Intracytoplasmic Sperm Injection. |
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Seok Hyun Kim, Soon Sup Shim, Byung Chul Jee, Sung Mi Choi, Hee Sun Kim, Buom Yong Ryu, Sun Kyung Oh, Chang Suk Suh, Young Min Choi, Kwang Bum Bai, Jung Gu Kim, Shin Yong Moon, Jin Yong Lee |
1Department of Obstetrics and Gynecology, College of Medicine, Seoul National University, Seoul, Korea.
2Institute of Reproductive Medicine and Population, Medical Research Center, Seoul National University, Seoul, Korea. |
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| Abstract |
OBJECTIVE
To evaluate the cumulative pregnancy rate(CPR) of in vitro fertilization and embryo transfer(IVF-ET) with intracytoplasmic sperm injection(ICSI). METHODS: Medical records of 260 infertile patients undergoing 519 cycles of IVF-ET with ICSI from January, 1994 to December, 1999 were retrospectively reviewed. The CPR beyond 12 weeks of gestation was estimated by Kaplan-Meier method. The CPRs were compared by log-rank test between groups divided by age of patients, indication of ICSI, and method of sperm retrieval for ICSI. RESULTS: As 70 patients achieved an on-going pregnancy after IVF-ET with ICSI, the PR was 26.9% per patient and 13.5% per cycle. The overall CPR was 54.9% after 6 cycles of IVF-ET with ICSI. As expected, age had a significant strong effect on the CPR; CPRs afer 4 cycles of ICSI were 61.8% in the age group of 30 years(n=81), 43.7% in 31-35 years(n=106), and 15.3% in 36 years(n=73). There was no significant difference in the CPR between abnormal semen analysis group(n=184) and prior low fertilization rate group(n=66). In abnormal semen analysis group, the CPR of surgically retrieved sperm subgroup(n=60) was not significantly different from that of ejaculated sperm subgroup(n=124). CONCLUSIONS: The CPR of IVF-ET with ICSI was presented, and it could be of much help in the clinical counseling of IVF-ET patients. ICSI technique could be used successfully for IVF-ET in infertile couples who had the male factor infertility or the past history of low fertilization rate in the previous cycles. |
| Key Words:
In vitro fertilization and embryo transfer(IVF-ET), Intracytoplasmic sperm injection(ICSI), Cumulative pregnancy rate(CPR) |
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