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Chemotherapy (chemo) is the use of drugs given into a vein or
taken by mouth to treat cancer. These drugs enter the bloodstream and
reach all areas of the body, making this treatment useful for cancer
that has spread (metastasized) to other organs. Depending on the type
and stage of sarcoma, chemotherapy may be given as the main treatment
or as an adjuvant (addition) to surgery. Chemotherapy for soft tissue
sarcoma generally uses a combination of several anti-cancer drugs.
The most commonly used drugs are ifosfamide and doxorubicin
(Adriamycin). Other drugs may be used as well, including cisplatin,
dacarbazine, gemcitibine (Gemzar), methotrexate, paclitaxel (Taxol),
vincristine. When several drugs are used together, the combination is
given a shortened name such as: MAID (mesna, doxorubicin [Adriamycin],
ifosfamide, and dacarbazine).
When ifosfamide is used, the drug mesna is also given. Mesna
is not a chemo drug. It protects the bladder from the toxic effects of
ifosfamide.
Chemotherapy drugs kill cancer cells but also damage some
normal cells. Side effects depend on the type of drugs, the amount
taken, and the length of treatment. Common chemo side effects include:
- nausea and vomiting,
- loss of appetite,
- loss of hair,
- mouth sores,
- fatigue
- low blood counts
Because chemotherapy can damage the blood-producing cells of
the bone marrow, patients may have low blood cell counts. This can
result in
- increased chance of infection (from a shortage of white
blood cells),
- problems with bleeding or bruising (from a shortage of
blood platelets),
- fatigue and weakness (from low red blood cell counts).
Most side effects disappear once treatment is stopped. Hair
will grow back after treatment ends, although it may look different.
There are remedies for many of the temporary side effects of
chemotherapy. For example, anti-emetic drugs can be given to prevent or
reduce nausea and vomiting.
Some chemo side effects may last a long time or even be
permanent. For example, doxorubicin can weaken the heart if too much is
given. If you are to be treated with this drug, your doctor may do
special studies to check your heart function before starting this drug.
The doctor will also watch the dose of doxorubicin closely during
therapy. Some chemo drugs cause nerve damage (called neuropathy),
leading to numbness, tingling, or even pain in the hands and feet.
Chemotherapy may also permanently damage the ovaries or testicles,
which can lead to infertility (not being able to have children).
If you will be getting chemo, discuss with your health care
team what drugs will be used and their possible side effects.
Hyperthermia and limb perfusion
This procedure is a different way to give chemo. The
circulation of the limb (arm or leg) with the tumor in it is separated
from that of the rest of the body. Chemo is given just to that limb and
the blood is warmed up a bit to help the chemo work better. Although
this has been studied for many years, it is still not a standard part
of the treatment for soft tissue sarcoma. Still, it may be able to help
people live longer than standard chemo.
Last Medical Review: 03/03/2009 Last Revised: 05/14/2009
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