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Is bleeding expected
after the egg retrieval?
Vaginal bleeding is not uncommon after
an egg retrieval. Usually this bleeding is from the needle
puncture sites in the vaginal wall. It is usually minor and
similar to a period or less. The bleeding experienced is analogous
to the bleeding that will take place from an IV or from the
arm after blood has been drawn. Unfortunately there is no
way to put Band-Aids on the vaginal puncture sites!
Is it normal to retrieve
an egg from every follicle?
Not necessarily. Although we will usually
get an egg from most mature sized follicles, most women will
have a mixed group of follicles after ovulation induction.
Some of those follicles will have immature eggs or post mature
eggs which may not be identifiable so they will seem to have
been "empty" follicles.
Is the embryo transfer
painful?
The embryo transfer does not require
any anesthesia. It is performed using a speculum that allows
the doctor to see the cervix, (like a Pap smear) and is very
similar in technique to an intrauterine insemination (IUI).
Usually the woman feels only the speculum and nothing else.
Is bed rest recommended
after the embryo transfer?
It is really not necessary from the
conception point of view. In nature, the embryo floats freely
in the endometrial cavity for a number of days before implantation
and it will do the same in an IVF cycle. We do recommend that
our patients take it easy following transfer, but routine
work activities are certainly reasonable. If there is an increased
risk of Ovarian Hyperstimulation, we will recommend prophylactic
bed rest.
What are the chances
of multiples with IVF?
When the above criteria are followed,
approximately 25-30% of pregnancies are multiple. The vast
majority of these are twin pregnancies. The rate of triplets
is approximately 5% and that of quadruplets is much less than
1% when the above criteria are followed.
Can anything be done
to improve embryo quality?
Ultimately the answer is no. If an embryo
is of poor quality because it is genetically abnormal, there
is nothing that can be done to salvage it. However, there
are procedures which we do that can improve the chances of
a borderline embryo. These include carrying aspiration of
fragments as well as assisted hatching. It has been shown
that procedures such as these can increase implantation rates
in couples with a poor prognosis.
Is assisted hatching
performed on all embryos?
In some cases yes. We have good data
showing that in some groups (e.g. women over 38 years of age,
previous failed IVF cycles, unusually thick zonae pellucida)
assisted hatching will increase the implantation and pregnancy
rates. There has only been one study carried out looking at
the impact of performing assisted hatching on every single
embryo of all couples and the conclusion was that it did not
increase the expected pregnancy rates. Is summary, assisted
hatching is certainly helpful in some cases but is probably
not necessary in all cases.
What is done with
any "leftover" embryos?
Embryos which are not transferred in
the retrieval cycle are maintained in culture for an additional
2-3 days. Those embryos which progress to the blastocyst stage
can then be cryopreserved, if that is the couple's wishes.
How soon after IVF
can a pregnancy test be performed?
Since hCG is used to finalize egg maturation
and to schedule egg retrieval, a pregnancy test (which is
a measurement of hCG hormone in the urine or blood) will be
positive for a number of days following egg retrieval. Some
women will metabolize the hormone quickly and it will be out
of the blood stream in a couple of days, while others may
take up to 9 days to do so. Simultaneously, a pregnancy starts
secreting hCG in measurable amounts in the blood approximately
1-2 days before the expected period. Keeping these two issues
in mind, then, we recommend that a pregnancy test be performed
12-14 days after the egg retrieval
Is there an increased
risk of birth defects related to IVF?
This issue has been looked at extensively.
The simple answer is that there is no increased risk of birth
defects after IVF. Human beings have an overall rate of birth
defects of approximately 2% at birth. The rate has been shown
to be the same for IVF pregnancies. There is some recent data
showing that there may be a minimal increase in this rate
among those pregnancies established by means of IVF with ICSI.
The increase was found to be in the 1% range.
How long of a wait
is recommended between a failed IVF cycle and trying again?
We would recommend at least one full
menstrual cycle of waiting before undergoing IVF a second
time. We know that it can take up to 6 weeks for inflammation
to resolve; therefore, it is reasonable to wait a similar
amount of time before restarting the process.
Are there limitations
on the number of IVF tries per couple?
We find that most couples will get pregnant
within 2 tries. Occasionally, there may be a reason to do
a third attempt but that is not common. More than this would
really require extenuating circumstances such as a miscarriage
due to a non-recurring reason, for example
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