In
this section, Dr N discusses optimal hormone replacement regimens.
Few women in the
United States are on an optimal hormone replacement regimen. It is always
sub-optimal to be on oral estrogen. The issue becomes not whether to
use hormone replacement, but how.
Orally administered
estrogen is transported to the liver and during its metabolism induces
the liver to produce undesirable elevations of a number of substances.
Oral estrogen raises the level of triglycerides and C - reactive protein
(CRP), as well as increasing insulin resistance.
All of these alterations
are known to be associated with an increased risk of cardiovascular
events. In addition, levels of Sex Hormone Binding Globulin (SHGB) are
elevated, which has the effect of decreasing libido, sexual response
and energy levels.
Optimum estrogen
replacement is always non-oral and utilizes estradiol, the biologically
active form of estrogen secreted by the ovary. It is delivered intact
into the bloodstream by the use of a transdermal patch, gel or subcutaneous
implant.
In contrast to oral
hormone replacement, these methods do not cause unwanted elevations
of liver substances. In those instances where symptoms persist, an implant
of an estradiol pellet is almost always effective.
In women who have
had their ovaries removed, or are deficient in androgen production,
testosterone can be safely administered non-orally and will enhance
libido, sexual response, preservation of lean body mass and sense of
well being.
Progesterone
When the uterus
is present, administration of a progestin is almost always indicated
to prevent the development of abnormal changes of the uterine lining
associated with unopposed estrogen stimulation.
Natural progesterone
is the hormone of choice, but as it is relatively weak in its activity
an alternate form of progesterone is often necessary. The progesterone
can be administered orally, vaginally, or in some instances by transdermal
patch, or intrauterine device.
It is most physiologic
to use the progesterone for 12 days every 4-8 weeks depending on individual
response. However, some women find that the “withdrawal bleeding”
associated with progesterone given at intervals is unacceptable. In
those instances, the use of a combined estrogen-progestin patch, although
not as physiologic, can be useful. It is also important to note that
some women are intolerant to progesterone experiencing PMS-like symptoms.
Altering the type of progesterone, dose or method of administration
can reduce this problem.
Important
considerations
Hormone replacement
with Prempro appears to have a less favorable risk-benefit profile than
other replacement preparations, particularly those that are non-oral
and those where a progestin component is not used continuously. This
is “old news” and has been recognized by menopausal experts
since the latter part of the 1990’s.
If your doctor has
suggested that you discontinue hormone replacement because of the Heart
and Estrogen/progestin Replacement Study Follow Up (HERS II) and The
Woman’s Health Initiative (WHI) study both (both published in
the Journal of the American Medical Association in July), ask the following
two questions: Have you read either of the studies and why any of the
recommendations apply to me? What are the short and long-term effects
of hormone deficiency on my health, longevity and quality of life?
If you are on an
orally administered estrogen consider switching to a non-oral preparation
containing estradiol. If a man in the United States was determined to
be hormonally deficient, he would almost certainly and without trepidation
be offered hormone replacement.
Whether you choose
to be a user, or non-user of hormone replacement this decision is yours
and cannot be dictated by your physician. Remember: “A woman in
the autumn of her life is entitled to an Indian summer rather than a
winter of discontent.”
PANACEA
OR POISON?
Appropriate
Hormone Replacement Therapy known as HRT, remains a viable and important
health care option for postmenopausal women.
PERSONAL
CHOICE
When it comes to the question of whether to use hormone replacement
therapy the answer is always one of personal choice.