Daniel Dasig1, Jennifer Lyon, Barry Behr, Amin A Milki. 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.
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.