Stage Two: Synchronization and Stimulation
Once all parties are screened, you will customarily be started on low dose oral
contraceptives ("the pill"). The purpose of taking the pill is to help get your
cycle synchronized with the recipient's cycle. You may spend 14-21 days or longer on the
pill after which the clinic will have you begin Lupron (leuprolide acetate) injections or
Synarel nasal spray. Lupron is self-administered by needle injection in the abdominal wall
or upper thigh, just underneath the skin. This is called a subcutaneous injection. Synarel
is taken as a twice-daily nasal spray. You will receive injection instructions from the
medical staff at the clinic. If at any time you are not clear on how to give the
injection or how much medication to take, you should call the clinic directly.
Lupron and Synarel are synthetic hormones, which work to temporarily suppress the
pituitary gland so that the stimulation of your ovaries can be more completely controlled.
In more basic terms, the Lupron/Synarel will shut down your ovulation, putting you in a
short-term menopausal condition, which may cause the following side effects: hot flashes,
mild headaches or a sense of fatigue. Of course, you may not have any side effects at all
-- hormones can cause different reactions in each person. Your Lupron or Synarel will
continue daily for a period of approximately 20-30 days. There are no adverse effects on a
pregnancy or any long-term adverse effects for you.
After 14 days injecting Lupron or using the nasal spray Synarel, you will begin a
series of injections using a hormone called Gonal-f. At this time you will be using both
Lupron or Synarel and Gonal-f. The active ingredient in Gonal-f is known as follicle
stimulating hormone (FSH) because it works to increase the number of follicles developing
in the ovaries. The follicles are the fluid filled sacs within the ovaries that contain
the eggs. These hormones are injected directly under the skin of your abdominal wall or
upper thighs (subcutaneous injections). You will be required to give the shots on a daily
basis for a period of about 10 days. You will receive the necessary medical instruction
from the clinic. Again, if you are unsure of dosage or process of how to give the
shot, please contact the clinic directly. A missed injection can have disastrous effects
on a cycle outcome. The dose of Gonal-f (or pergonal/repronex/humegon) may be
adjusted during the cycle depending upon the response of the ovaries.
Gonal-f (or pergonal/repronex/humegon) has been used extensively for over twenty years
and is not clearly associated with any type of cancer, birth defect, or increase in
miscarriage. Side effects of Gonal-f are secondary to their action on the ovaries and are
related to ovarian stimulation. If you are prone to premenstrual syndrome (PMS) you may
feel some of the side effects attributed to the Gonal-f (or pergonal/repronex/humegon)
injections. These effects are usually mild and may include allergic sensitivity, breast
tenderness, abdominal bloat, headaches and/or mood swings. You may even gain a few pounds,
which will only be a temporary weight gain as it is when you have PMS.
In rare cases, over stimulation of the ovaries may occur. Ovarian Hyperstimulation
Syndrome (OHSS) generally causes enlargement of the ovaries accompanied by abdominal
discomfort and/or pain. In severe cases it could lead to hospitalization. It is very
expected that these symptoms will cease 1-2 weeks following the cycle of treatment. The
physician at PFC will discuss any concerns you may have about OHSS at the time of your
initial consult.
Monitoring
IVF-ET cycles are monitored in two ways: vaginal ultrasound and by blood hormone tests
(blood draws). Monitoring is necessary in order to assess the growth and development of
the follicles and to avoid the possibility of Ovarian Hyperstimulation Syndrome (OHSS). At
the beginning of injections and after about seven days of Gonal-f, frequent ultrasound
monitoring and blood tests begin.
Ultrasounds allow the physician to obtain an image of the follicles as they grow and
develop in the ovaries. Both the number and size of the follicles can be determined by
ultrasound, which is essentially a painless procedure. You may feel the pressure of the
transducer on your abdomen or in your vagina; however, you cannot hear the sound waves nor
have there been any harmful effects to the developing eggs.
As follicles develop, the ovaries secrete increasing amounts of the hormone, estradiol.
The level of estradiol indicates the degree of ovarian stimulation and is used in
conjunction with the ultrasound to adjust the dose of medication and to time the HCG
injection (short for "human chorionic gonadotropins"). HCG is a natural hormone
and works to stimulate ovulation as in a normal cycle and it has been used safely for many
years.
HCG is your final injection and this initiates the final stage of maturation and timing
of the egg retrieval.