A birth from the transfer of a single vitrified-warmed blastocyst using intracytoplasmic sperm injection with calcium ionophore oocyte activation in a globozoospermic patient

Autor: C. Nishinaka, Yukiko Nakajo, Hiroyuki Abe, Hiromitsu Hattori, Yasuhisa Araki, Takayuki Ishikawa, T. Kyoya, Koichi Kyono
Rok vydání: 2009
Předmět:
Zdroj: Fertility and Sterility. 91:931.e7-931.e11
ISSN: 0015-0282
DOI: 10.1016/j.fertnstert.2008.10.002
Popis: Objective To present the effectiveness of diagnostic heterologous intracytoplasmic sperm injection (ICSI), mouse oocyte activation test (MOAT), and ICSI combined with assisted oocyte activation (AOA) in a globozoospermic patient. Design A case report. Setting A private IVF center, Japan. Patient(s) A patient with globozoospermia. Intervention(s) MOAT in a mouse and ICSI combined with AOA in a human. Main Outcome Measure(s) Ultrastructure, MOAT, fertilization, and pregnancy. Result(s) The transmission electron micrographs showed 100% round-headed spermatozoa lacking an acrosome. MOAT showed that the fertilization rate was 68.4% (13/19) when AOA was used but 0% (0/19) when AOA was not used. After the diagnosis of globozoospermia and sperm-related activation deficiency, 17 human mature oocytes were activated with calcium ionophore after ICSI was performed. The fertilization rate was 88.2% (15/17), and 11 blastocysts were cryopreserved using the vitrification method to prevent severe ovarian hyperstimulation syndrome. A single vitrified-warmed blastocyst was transferred. A gestational sac with fetal heart movements was recognized, and a healthy boy weighing 3180 g was born at 40 weeks of gestation by cesarean section without any congenital abnormality. Conclusion(s) MOAT allows discrimination between sperm- and oocyte-related fertilization failures and shows the effectiveness of AOA.
Databáze: OpenAIRE