In July, a 33 - year - old woman in Edinburgh became the first in Britain to give birth after having
frozen ovarian tissue returned to her body.
Doctors have performed similar operations before and about 60 women have had their fertility restored with
frozen ovarian tissue since 2001.
If the approach works in women it could be used to boost fertility or help those who
froze ovarian tissue prior to chemotherapy.
Ovarian tissue freezing, an outpatient procedure which removes and
freezes ovarian tissue for later use, can deliver these outcomes but has been considered experimental until now.
Not exact matches
Helen Picton, who oversaw the
tissue -
freezing at Leeds University, told the BBC that in Europe alone, several thousand girls and young women have had
ovarian tissue frozen and stored.
«Is «
ovarian tissue freezing» superior to egg
freezing?.»
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ovarian tissue freezing procedures resulted in 84 births and 8 pregnancies that lasted beyond the first trimester.
Recently Kutluk Oktay, the chief of reproductive endocrinology and infertility at New York Methodist Hospital in Brooklyn, has been experimenting with
freezing and transplanting swatches of
ovarian tissue.
While individual, already - developed eggs die easily when
frozen, immature follicle eggs embedded in the
ovarian tissue fare a lot better.
The need for better access to fertility preservation has become more pressing in recent years for two reasons: first, the improved rates of survival in young women and girls diagnosed with cancer; and second, improvements in the techniques of
freezing eggs and
ovarian tissue to restore fertility.
«Oocyte and embryo
freezing are regarded as established,» he said, «but
ovarian tissue cryopreservation is considered experimental, although it is the only option for prepubertal girls.»