Live birth after transfer ofvitrified-warmed embryo derived from vitrified-warmed oocyte andfrozen-thawed sperm following failed ICSI. Case report

Marzo_2017

caso clínico 402 Rev Med Chile 2017; 145: 402-405 Live birth after transfer of vitrified-warmed embryo derived from vitrified-warmed oocyte and frozen-thawed sperm following failed ICSI. Case report Zhihong Zhang, Jihong Zhu, Hongyang Zhang, Qi Xi, Dongfeng Geng, Shu Deng, Ruizhi Liu ABSTRACT Since the first successful pregnancy from a frozen human oocyte was reported, remarkable technological progress has been made in the area of cryopreservation of human oocytes. We report a successful delivery of two healthy babies after transfer of vitrified-warmed embryos derived from intracytoplasmic sperm injection (ICSI) with vitrified-warmed oocytes and frozen-thawed sperm. A female patient and her husband with severe oligoasthenspermia are reported. At the day of oocyte collection, very few inactive sperms were found in her husband semen. Multiple site open testicular biopsy was performed on her husband, but no sperm was retrieved. The patient did not become pregnant after transferring two embryos coming from half of oocytes and inactive sperms. The patient got pregnant and delivered two healthy babies after receiving a transfer of vitrified warmed embryos from vitrified-warmed oocytes and frozen-thawed sperm. (Rev Med Chile 2017; 145: 402-405) Key words: Embryo Implantation, Delayed; Embryo Transfer; Semen Preservation. Embarazo a partir de un embrión vitrificado derivado de oocitos vitrificados y espermios descongelados. Reporte de un caso La criopreservación de oocitos humanos ha progresado mucho desde que el primer embarazo exitoso desde un oocito congelado fue informado. Nosotros informamos el parto de dos bebés sanos después de transferir embriones vitrificados y recalentados y espermios descongelados. Se trata de una mujer y su marido con una oligoastenoespermia severa. En el día de la recolección de oocitos, se encontraron muy pocos espermios inactivos en el semen del marido. Se tomaron biopsias testiculares pero se encontraron muy pocos espermios inactivos. La mujer logró quedar embarazada y dio luz a dos bebés sanos después de recibir una trasferencia de embriones vitrificados y recalentados, y de espermios descongelados. Centre for Reproductive Medicine, Centre for Prenatal Diagnosis, First Hospital, Jilin University, Changchun, China. Financial support: Youth Foundation of First Hospital, Jilin University (00400050032) Competing interests: The authors declare that they have no competing interests. Received: Oct 6, 2016 Accepted: Jan 3, 2017 Corresponding Author: Ruizhi Liu Centre for Reproductive Medicine, Centre for Prenatal Diagnosis, First Hospital, Jilin University, No. 71 Xinmin Street, Changchun 130021, Jilin, China. Tel: 0086-0431-85654528 Fax: 0086-0431-85654528 lrz410@126.com


Marzo_2017
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