Assisted
Reproductive Technologies offer an excellent treatment alternative to
couples, which have been unable to become pregnant through traditional
surgical or hormonal treatments.
Once it is determined if any of
these procedures is likely to succeed in your particular situation,
our team of physicians, embryologists and nurses will explain and discuss
all of your options with you.
In
Vitro Fertilization – Embryo Transfer (IVF-ET)
Is a procedure whereby eggs are removed from the ovaries and
fertilized in the laboratory with the male partner’s sperm. The
resulting embryos are then replaced back in the womb 3 to 7 days later.
IVF relies on the inherent viability of the resulting embryos to establish
a viable pregnancy.

Intracytoplasmic
Sperm Injection (ICSI)
I s a procedure where a single sperm cell is selected and injected directly
into each egg to fertilize it. ICSI can be used to overcome virtually
any form of male factor infertility (low sperm count, motility, and/or
morphology) as well as previous fertilization failure. It can also be
used in cases where a previous vasectomy has been done, or when a vasectomy
reversal has not been successful.
ICSI is also the approach of choice in couples in which the male partner
has suffered injury to the spinal chord (paralysis), which alters the
neurologic mechanisms of erection, and/or affects the quality of the
sperm.
(Intracytoplasmic
Sperm Injection - ICSI)
Laser Selective Assisted
Hatching
Is a procedure that involves carefully making a hole
in the outer layer of the embryo (zona pellucida). In order for an embryo
to establish pregnancy it needs to “hatch” out of the zona
pellucida to come in closer contact with the uterine lining. Quite often
the zona pellucida might undergo changes that impede hatching of the
embryo and as result pregnancy is not established; these changes might
be due to factors such as in vitro culture conditions, advanced reproductive
age (i.e. >38), diminished egg quality (as in high FSH patients),
or diminished embryo quality as seen when severe fragmentation of the
cells in the embryo occurs. In these cases selective hatching has been
shown to improve embryo implantation and viable pregnancy rates. The
procedure is performed with a laser beam right before embryo transfer
sometimes in combination with embryo de-fragmentation.
(Hatched
Blastocyst)
Embryo Defragmentation
Is a delicate procedure, which requires a high level
of expertise. There is experimental evidence that in some cases, embryo
quality can be restored, or improved with de-fragmentation. Fragments
are membrane-bound, non-nucleated pieces of cytoplasm that are lost
during cell division.
Fragmentation significantly reduces the developmental potential of human
embryos.
When no more than 35% of the total cell volume of the embryo has been
lost to fragmentation and a number of normally appearing blastomeres
(embryo cells) are still viable, embryo de-fragmentation might help
restore development potential.
This procedure is performed after selective assisted hatching; embryo
fragments are removed by extremely gentle aspiration with a special
micro instrument 10 to 12 µm in diameter. The procedure is performed
under high magnification and using a state-of-the-art microscope; the
embryo is continually repositioned and observed constantly during the
procedure.
(Left: De-fragmentation
in progress / Right: De-fragmented embryo)
Blastocyst Culture
Or extended culture, allows embryos to reach a more
advanced stage of development in the laboratory prior to their transfer
into the womb. Most human embryos develop relatively well up until 3
days in culture. At this point, normally developing embryos “turn
on” their genomic machinery in order to use more complex nutrients.
Blastocyst, is the term to name the stage of development of an embryo
by day 5.
Blastocyst culture allows for further selecting embryos that are developing
normally, in other words, is sort of survival of the fittest. Blastocyst
culture might be beneficial in reducing multiple pregnancies as these
more advanced embryos might have higher implantation potential than
earlier stages, therefore, allowing for the transfer of lower numbers
to the womb.
(Day
5 Expanded Blastocyst)
Pre-implantation
Genetic Diagnosis – PGD
Also known as “embryo screening” is sophisticated
technology that allows examination of embryos for anomalies of the chromosomes
(numerical chromosomal anomalies also called “aneuploidies”,
or structural chromosome anomalies also called translocations, and/or
single gene defects).
With PGD, embryo selection can be further determined prior to replacement
into the uterine cavity. PGD may increase the chances of carrying a
pregnancy to term. In 2002, CARE-LIFE was the first center in the South
Florida area with a proven and successful PGD program.
This technology can potentially enhance success rate for patients with
advanced reproductive age, repeated miscarriages, history of prior failed
IVF treatments, or with family history of certain genetic traits.
When PGD is performed, one or two cells are gently removed from each
embryo through an embryo biopsy. Analysis of chromosomes, or a particular
gene can be undertaken with the utilization of techniques such as F.I.S.H
(Fluorescence In Situ Hybridization), or P.C.R. (Polymerase Chain Reaction).

(Left:
Chromosomes identified by FISH / Right: Embryo Biopsy for PGD)
Frozen Embryo
Transfer
Is a procedure in which embryos frozen from a previous
IVF cycle are thawed and placed in the womb. Frozen embryo transfer
increases the efficiency of a single fresh IVF cycle as multiple frozen
embryo transfers can be attempted without the need for ovarian stimulation.
Embryos can be frozen at different stages of development. If frozen
and stored properly, their potential viability remains unchanged for
many years.

(Frozen-Thawed
Blastocysts undergoing re-expansion)
Gamete Intrafallopian Transfer (GIFT) Is
a procedure whereby mature eggs and sperm are placed directly into the
woman’s fallopian tubes where natural fertilization takes place.
Zygote Intrafallopian
Transfer (ZIFT)
Is a variation of IVF and GIFT in which the eggs
are fertilized in the laboratory and early developing embryos are placed
in the fallopian tubes. Both GIFT and ZIFT may be performed in our office
surgical suite.
Ovum Donation
Is a treatment alternative for women who don’t
produce eggs due to advanced reproductive age, premature ovarian failure,
lack of ovaries, or women who carry a severe genetic condition that
would transferred to their offspring. The husband’s sperm is used
to fertilize the eggs in the laboratory through IVF. The success rates
for ovum recipients are significantly higher than for IVF in the general
population, and the CARE-LIFE team can help a couple select an anonymous
donor if a known donor has not been selected.
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