Novasure
Novasure
endometrial ablation is a "flame-thrower" amongst the devices
for endometrial ablation. It consists of an electrode with a
sheath at the end; in the beginning of the procedure, the sheath
is placed through the cervix. The electrode then expands and
conforms to the shape of the uterine cavity. The device tests
whether there is any rupture of the cavity and will not turn
on if there is one. (As a safety measure, the device will turn
itself off if 50 ohms of resistance occurs.)
Next,
a small quantity of CO2 inflates the uterus so that the device is
placed properly. If everything is OK, a short burst of radiofrequency
energy, for no more than 90 seconds, destroys the endometrium, and
the whole procedure lasts for less than 5 minutes. The device will
also remove the desiccated issue from the cavity. Most patients
can go home within an hour of the procedure.
Besides speed, the main advantage of this system is that no preparation
of the uterus need be done in advance. With other methods of ablation,
the patient must receive several injections of Lupron
Depot two months beforehand the scheduled date, the idea
being to thin the endometrium so that the ablation can succeed better.
One injection costs $400 -- you will need several of them, so it is
very expensive. Not only that: it produces many unwanted side-effects,
such as hot flushes, sweats etc. The procedure itself must be executed
when the patient would not have her usual menstrual cycle.
Contrary
to all that, Novasure does not need thinning of the endometrium,
so there is no need for preparation and costly injections, and it
can be done at any time of the woman's menstrual cycle.
Types of Anesthesia for Novasure
Even being that fast, Novasure endometrial ablation still is an ablation,
so there must be some kind of anesthesia. Usually, it is local anesthesia
and sedation, although epidural and general anesthesia are also an
option in certain cases. With other types of ablation, cramps are
to be expected and even feared, but with Novasure, there are cases
of women playing competetive tennis matches the same weekend.
Whom
Is It Not For
The uterus has to be of fairly regular shape. Fibroids
or large polyps will interfere with the placement of the device, so
if that is the case, it would be best to eliminate them in some other
way first, and then proceed with the ablation itself. Novasure can
be used even if there are polyps up to 2 cm large, and it can be even
used to treat fibroids if they do not distort the shape of the cavity.
If
the wall of the uterus is too thin, this type of ablation is also
not for you.
As with
all other types of endometrial ablation, if you want more children, this is not for you. After
ablation, you should best be under some kind of contraception as there
is a possibility of getting pregnant. As remote as it is, it best
didn't happen, since most of the endometrium -- the very tissue that
your eventual baby would be linked to under normal curcumstances --
is almost all dead ("flamed up" in the case of Novasure, "boiled"
with thermal balloon and so on, depending on the device used).
The
Effects of Novasure Endometrial Ablation
In tests that led to the approval of Novasure by the FDA, 93%
of women were satisfied with the outcome of the ablation within
one year and after 3 years, 44% of the women were amenorrheic.
In other words, this is comparable and even marginally better
than other types of ablation. However, the same objections apply
to Novasure as to any other type of ablation -- there can be watery
and not so watery discharges for weeks after the procedure, and
only after 3-6 months will you be able to tell whether it all
made sense or not. For a small number of patients, all this will
only prolongue their route towards hysterectomy.
Even if everything looks fine from the surgical point of view,
you should still be looking for alternative kinds of healing.)
For more general information on ablation, please visit our
main endometrial
ablation page.
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