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J Assist Reprod Genet. 2004 Dec;21(12):427-9.

Monozygotic twin birth after the transfer of a cleavage stage embryo resulting from a single pronucleated oocyte.

Author information

1
Stanford University Medical Center, Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, Palo Alto, California 94304, USA. ddasig@hotmail.com

Abstract

PURPOSE:

To present a case involving the transfer of a single pronucleated oocyte resulting in a monozygotic twin pregnancy.

METHOD:

A descriptive case report of a single patient.

RESULTS:

The patient conceived and was found to have a monochorionic diamnionic pregnancy which resulted in the birth of normal identical twin boys at 32 weeks of gestation.

CONCLUSIONS:

The case report addresses an issue that has not received proper attention in the literature. It illustrates that observing a single PN in an oocyte at fertilization check should not be an absolute deterrent to transferring the resulting embryo even in an older patient with a high FSH level. This report also suggests that single observations, especially at the assessment of fertilization, in the IVF laboratory are limited when evaluating embryo potential and normalcy.

PMID:
15704517
PMCID:
PMC3455616
DOI:
10.1007/s10815-004-8758-2
[Indexed for MEDLINE]
Free PMC Article

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