A case of oocyte and embryo vitrification resulting in clinical pregnancy.
OBJECTIVE
To examine a case of clinical pregnancy following oocyte and day 3 embryo vitrification.


METHODS
Case report.


METHODS
Huntington Centro de Medicina Reprodutiva, a private infertility clinic, in São Paolo, Brazil.


METHODS
A 31-year-old woman, gravida 1, para 1, with polycystic ovary syndrome.


METHODS
In vitro fertilization with oocyte and embryo vitrification.


METHODS
Clinical pregnancy defined as fetal cardiac activity on ultrasound examination.


RESULTS
Transvaginal ultrasound examination, at 7 6/7 weeks, revealed a single live intrauterine pregnancy with positive cardiac activity.


CONCLUSIONS
Although further research is needed, this case suggests that repeat vitrification and warming of oocytes and embryos not only are possible but can result in pregnancy.
Oakes
Meghan B
MB
Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan 48109-0617, USA.
Gomes
Claudia Messias
CM
Fioravanti
Joyce
J
Serafini
Paulo
P
Motta
Eduardo L A
EL
Smith
Gary D
GD
D000328:Adult; D015925:Cryopreservation; D046149:Embryo Culture Techniques; D010064:Embryo Implantation; D004624:Embryo Transfer; D004622:Embryo, Mammalian; D005260:Female; D005865:Gestational Age; D006340:Heart Rate, Fetal; D006801:Humans; D007247:Infertility, Female / Q000209:etiology / Q000628:therapy*; D054315:Oocyte Retrieval; D009865:Oocytes; D011085:Polycystic Ovary Syndrome / Q000150:complications* / Q000628:therapy; D011247:Pregnancy; D020554:Sperm Injections, Intracytoplasmic; D016896:Treatment Outcome; D016216:Ultrasonography, Prenatal