Monozygotic pregnancies from transfers of zona-free blastocysts

Authors

David Frankfurter, The George Washington University
James Trimarchi, Rhode Island Hospital
Rick Hackett, Rhode Island Hospital
Li Meng, University of Kansas Medical Center
David Keefe, Rhode Island Hospital

Document Type

Journal Article

Publication Date

8-1-2004

Journal

Fertility and Sterility

Volume

82

Issue

2

DOI

10.1016/j.fertnstert.2004.02.105

Abstract

To minimize the risk of identical twinning the zona pellucida (ZP) was completely removed before blastocyst ET in all blastocyst transfers performed between May 1, 1999 and April 30, 2000. Compared to prior, zona intact, blastocyst transfers carried over between September 1, 1998 and April 30, 1999 no significant difference was noted regarding implantation, pregnancy, monozygotic pregnancy, or multiple gestation rates, thereby indicating that monozygosity can arise independently of the ZP. © 2004 by American Society for Reproductive Medicine.

APA Citation

Frankfurter, D., Trimarchi, J., Hackett, R., Meng, L., & Keefe, D. (2004). Monozygotic pregnancies from transfers of zona-free blastocysts. Fertility and Sterility, 82 (2). http://dx.doi.org/10.1016/j.fertnstert.2004.02.105