As seen in “For Your Health”, Scottsdale Airpark News, October 20, 2007
FERTILITY TREATMENT UPDATE
By Daniel F. Rychlik, M.D., F.A.C.O.G., Fertility Treatment Center
For women who dream of having a family one day,
recent high-tech medical advancements in fertility
treatments will enable them to delay pregnancy
and have children according to their own calendar,
not their biological clock. Egg freezing is an evolving
technology that preserves a woman’s fertility by literally
keeping her eggs on ice until she decides to get pregnant.
The procedure, which is still being refined, will be beneficial
for women who suffer from diseases and medical
conditions that may impair their future fertility. Egg freezing
also is an option for professional, career-minded women
or women without a partner who wish to become mothers
down the road.
Young, healthy eggs have a greater chance of being fertilized
than older, more mature eggs. As techniques improve,
fertility specialists recommend that women who plan to
postpone motherhood freeze their eggs while they are in
their 20s – their peak reproductive years. The goal is to thaw
the eggs for in vitro fertilization (IVF) to achieve pregnancy
at a later date.
Egg freezing is not as simple as it sounds. Unlike freezing
embryos, which has been widely available for decades,
freezing human eggs is difficult. An egg is the largest cell in
the body and is filled with water. When an egg is thawed, ice
crystals cause damage that will prevent it from being fertilized.
Preventing ice crystal formation is critical to freezing
and thawing eggs successfully.
The egg-freezing procedure starts with hormone injections,
which increase the number of eggs a woman produces.
The eggs are then extracted from the woman’s ovary and
treated with a protectant to reduce water content and ice
crystal formation. Then, the eggs are frozen at significant
subzero temperatures and submerged into a tank of liquid
nitrogen where they are stored until needed for a future pregnancy
when they can be thawed, fertilized and implanted
into her womb.
Currently, egg freezing techniques have a low rate of success.
However, researchers are making significant progress.
Here in the Valley, Fertility Treatment Center (FTC) is playing
a significant role in moving egg freezing into the forefront
of reproductive medicine. With a unique background in
low-temperature physics, FTC’s medical director, H. Randall
Craig, M.D., F.A.C.O.G., is working with the Arizona State
University (ASU) department of chemistry and biochemistry
to devise a more successful method for freezing eggs. The results
are promising and clinical trials should begin in 2008.
Pre-implantation Genetic Diagnosis
In theory, frozen healthy young eggs can last indefinitely in
suspended animation. This would avoid the problem of egg
deterioration as a woman ages, which increases the possibility
of chromosomal disorders such as Down syndrome.
Pre-implantation genetic diagnosis (PGD), a reproductive
technology, offers couples peace of mind by breaking
the cycle of inherited genetic defects so they can enjoy the
prospect of parenthood without fear of passing on a devastating
disease to their offspring. PGD is used to diagnose
chromosome disorders in embryos.
Couples who have lost pregnancies
due to genetic disorders,
who already have a child with a
genetic problem or who are carriers
of a genetic disorder can use
PGD testing to ensure that babies
born after the procedure do not
carry the genetic disease. Additionally,
because they are free
from PGD-screened chromosomal
disorders, these embryos have a higher chance of resulting
in a successful pregnancy.
PGD is performed by removing a single cell from an
embryo, which is then analyzed for the presence of genetic
disorders. Test results are usually available within 12 to
24 hours. Only unaffected embryos are implanted into the
woman’s uterus.
FTC can test embryos for a panel of many genetic abnormalities
including:
• Alzheimer’s disease (APP gene)
• Beta-thalassemia
• Cystic fibrosis
• Down syndrome
• Fragile X syndrome
• Gaucher’s disease
• Hemophilia A & B
• Huntington’s disease
• Muscular dystrophy (Duchenne and Becker)
• Sickle cell disease
• Tay-Sachs disease
• Turner syndrome
FTC was the first center in the southwestern United
States to report a successful pregnancy following in vitro
fertilization (IVF) and PGD screening for genetic disease.
At FTC, all treatment plans are individually designed
to optimize a patient’s chances of achieving a successful
pregnancy. The scope of services includes intrauterine insemination,
fertility medications, and advanced procedures
such as in vitro fertilization (IVF), preimplantation genetic
diagnosis (PGD) and a donor egg program.
FTC encourages couples to get tested early and discuss
their reproductive potential with their physician or a
reproductive specialist. Sometimes it’s necessary to lend
nature a hand, especially if a woman is over age 34 and
desires a family.
FTC has two Valley locations: 14861 N. Scottsdale Road,
Suite 115, Scottsdale, and 2155 E. Conference Drive, Suite
115, Tempe, at the Reproductive Medical Institute complex
in the ASU Research Park.
Daniel F. Rychlik, M.D., F.A.C.O.G., is the associate medical director at Fertility
Treatment Center, an academic medical practice and one of the most
comprehensive reproductive treatment facilities in the western United States.
He is also a clinical assistant professor at the University of Arizona College of
Medicine. Dr. Rychlik was named “Top Infertility Doc” by a leading regional
magazine in 2005 and 2006. For more information, call (480) 998-9876
or visit www.fertilitytreatmentcenter.com. |