Babies are a blessing,
who knows better than an infertile couple.
A recent study has
revealed that females seeking fertility treatment with frozen embryos have
better possibilities of getting success in the form of being pregnant than
those who resort to 'fresh' embryos.
The researchers said
that the study findings show a "major paradigm change" in
scientifically assisted reproduction and could bring alteration in the existing
policy of choosing fresh embryos to frozen embryos. Babies developing from
frozen embryos are born well than that of fresh ones.
conducted a systematic review of about 37,000 IVF pregnancies that showed an
important fact that there are less chances of bleeding in mothers and babies
being born prematurely with low birth weight when the IVF embryos were frozen
and stored in contrast to treatment with fresh embryos.
The research suggested
that babies born as a consequence of frozen IVF had less chances of dying
immediately after birth.
"The review of 11
international studies also found that the death rate immediately before and
after birth was lower in babies who were born as a result of transferring
frozen-thawed embryos into the womb compared with the transfer of fresh IVF
Maheashwari, the lead researcher of the
study and a professor at the University of Aberdeen mentioned, "If
pregnancy rates are equal and outcome in pregnancies are better, our results
question whether one should consider freezing all embryos and transferring them
at a later date, rather than transferring fresh embryos."
Dr. Maheshwari further
added, "This represents a major paradigm change in assisted reproduction,
and one which could satisfy the twin demands of optimizing safety and success.
Traditionally it has been thought that fresh is always better and used as a
first choice. Initially there were concerns about the safety of freezing
techniques, and it was felt the quality of the embryo could deteriorate and
impact on the health of the child. However, data to date has been
Nowadays in most of
the IVF centers, fresh embryos are usually preferred first and only surplus
good-quality embryos are frozen and preserved for later use. Embryo freezing
has become a popular technique, as single embryo transfer is preferred instead
of much risky transfer of two or more embryos.
Murdoch, the head of Newcastle Fertility Centre said that the findings of the
study however did not justify alteration in the current policy. She stated,
"The results of individual studies that are considered in this
meta-analysis are already being discussed in clinics and it is of some concern
that conclusions have been drawn, incorrectly, that we should routinely freeze
all embryos and transfer them in a future menstrual cycle."
Mr. Peter Braude, a fertility specialist at King's College London mentioned that
the study outcomes 'were counter-intuitive since "second-best"
embryos are usually selected for freezing, with the best being transferred