Monozygotic twins and triplets in association with blastocyst transfer

被引：61
|
作者：
Jain, JK [1 ]
Boostanfar, R [1 ]
Slater, CC [1 ]
Francis, MM [1 ]
Paulson, RJ [1 ]
机构：
[1] Univ So Calif, Keck Sch Med, Dept Obstet & Gynecol, Div Reprod Endocrinol & Infertil, Los Angeles, CA USA
来源：
JOURNAL OF ASSISTED REPRODUCTION AND GENETICS | 2004年 / 21卷 / 04期
关键词：
blastocyst; in vitro fertilization; monozygotic twins; multiple pregnancies;
D O I：
10.1023/B:JARG.0000029493.54929.be
中图分类号：
Q3 [遗传学];
学科分类号：
071007 ; 090102 ;
摘要：
Purpose: To compare the incidence of monozygotic twins following blastocyst versus day-3 embryo transfer (ET). Methods: A retrospective analysis of the outcome of assisted reproductive technology (ART) cycles utilizing blastocyst ET during 1999-2000 was compared to a similar group of patients undergoing day-3 ET during 1997-1998. Results: Blastocyst ET was used in 75 cycles with 2.0+/-2 embryos transferred. The comparison group consisted of 90 cycles with day-3 ET and 3.0+/-2 embryos transferred. Conclusions: High pregnancy rates are maintained with blastocyst ET even though fewer embryos are transferred. The rate of monozygotic twins is higher with blastocyst ET than with day-3 ET. This increase may partially negate the benefit of reduced high-order multiple gestations attributed to blastocyst ET.
引用
收藏
页码：103 / 107
页数：5
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