Q: Can a Hysterectomy
Remedy or Relieve Some Symptoms of BP?
Is it possible that a hysterectomy can remedy or relieve some symptoms of
bipolar disorder? Let me explain. I have been diagnosed with as Bipolar 1 since
I was 13. About 8 years ago, I finally found the right combination of
medications that worked for me, Depakote and Geodon. That has
worked perfectly for about seven years. About a year ago, I had to have a
hysterectomy for endometriosis (yes, I also had an extremely high estrogen
level), and I am not on any kind of estrogen or hormone replacement therapy.
Now, however, the same combination that has worked in the past, no longer works.
Instead, it is MAKING me manic! I honestly think that I would feel much better
off without the medication or at the very least, less of it.
Dear Kelli --
Well, it sounds like something
clearly changed. Because of the size of this change, and because you mention
that you are not taking hormone replacement therapy, I am going to presume that
with your hysterectomy, you also had both ovaries removed as well (sometimes
called a total hysterectomy). If not, this is even more of a mystery.
Presuming that indeed your
reproductive hormone environment changed quickly with this surgery, what you
have observed is that the combination of divalproex (Depakote) and ziprasidone (Geodon)
now behaves very differently. Of course because there are two medications
involved, we have to think about each one of them separately. Let's take the
Divalproex has long been
recognized as having the capacity to interfere with reproductive hormones in
some way. Although the details have not been worked out, the overall condition
that it can sometimes precipitate is called Polycystic Ovarian Syndrome (PCOS).
You can read more details about
divalproex and PCOS with that link to my website page on this subject.
Therefore we might presume
that with the sudden change in reproductive hormone environment, there has been
some sort of change in divalproex's effects. This could be a shift in the
impact of divalproex on the brain, in the absence of higher levels of estrogen,
but that is mostly theory. There are no studies suggesting an interaction like
this, to my knowledge. Secondly, it could be a shift in divalproex blood level,
some kind of metabolic change from lower estrogen/progesterone levels.
Theoretically, divalproex could have been effectively blocking the pro-manic
effects of ziprasidone (more on that in a minute), but if it's blood levels
suddenly plunged, you could lose that protection. If you are taking a
relatively low dose of divalproex, say 1000 mg (medium dose is 1500, high dose
is 2000), you could have fallen out of the effective blood level range. If that
were the case, obviously one potential solution to your current symptoms -- for
you to discuss with your psychiatrist, NOT to do on your own (there might be
some very good reasons not to do this in your case) -- is to turn the dose up.
If that sounds like a pretty
good theory, unfortunately, is mostly theory. I've not heard of a mechanism by
which reproductive hormones could change the divalproex blood levels. On the
other hand, my next idea is also mostly theory.
Ziprasidone has been widely
recognized to have pro-manic effects, very much like an antidepressant, at low
doses (generally below 120 mg, although it is hard to generalize; some people
are very different in this respect). Moreover, the actual blood levels you get
are highly dependent on whether you take the medication with a meal or not. So
we might guess that somehow the actual blood level you are getting changed,
after your surgery. As with the divalproex guess, perhaps there is some
mechanism by which estrogen was having an impact on your ziprasidone blood
levels, and that is different now (i.e. you shifted to a lower blood level that
is acting more like an antidepressant than before. This is not theory: I've
definitely seen this phenomenon in people taking ziprasidone, when we move their
dose up or down -- losing or gaining, sometimes regaining, the effect that is
more like an antidepressant).
Finally, (this is like the
first half of the divalproex story above) it could be that ziprasidone was
interacting with estrogen (and/or perhaps progesterone) directly on your brain,
so that with the two of them together (or three), ziprasidone worked nicely.
Estrogen has been shown to have an antidepressant effect in some women, but it
seems to have a pro-anxiety effect that is rather similar to a pro-manic effect
in other women. They just can't take birth control pills, for example. So
exactly what estrogen does in the brain is very unclear, and it seems to vary
from person to person. Likewise, it's not clear what progesterone does,
although theoretically it should have an anti-anxiety effect: one of its
breakdown products is very similar to anti-anxiety medications (e.g. Valium and
Xanax). The point here is that there is a precedent for thinking that
reproductive hormones do something to the brain that could be very different in
their absence, changing the way in which ziprasidone was working.
On the whole, because of the
flukiness of ziprasidone, I think this is somewhat more likely to be the
pro-manic ingredient in your mix now, than is Depakote, which is generally
pretty predictable in its anti-manic effects and which has never been regarded
as likely to have pro-manic effects at all. However, that is an overall
impression with which your psychiatrist might differ based on knowing more
details of your past experience with these medications. My main intent in
replying to your query is to affirm that by some mechanism, whether you can
figure it out or not, it is quite plausible that the hysterectomy (at least if
there was a total hysterectomy) did indeed lead to this shift.
Good luck figuring out the
right next move.
Published April, 2009