How many bone marrow transplants were performed both in the United
States and in Asia (Japan, Taiwan, China, Korea, Singapore, Malaysia,
Thailand, Hong Kong) in 2002 and how many performed in 2003 through
July 31?
I'm interested in only bone marrow as opposed to blood (peripheral or
umbilical cord) stem cell transplants, and would like numbers for both
locations seperated and not added together. |
Clarification of Question by
mkremen-ga
on
27 Aug 2003 15:22 PDT
i would also need the source for this information.
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Clarification of Question by
mkremen-ga
on
27 Aug 2003 16:08 PDT
estimates are ok(with source information), as it is probably hard to
get an exact number
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Clarification of Question by
mkremen-ga
on
27 Aug 2003 16:44 PDT
if unable to get reliable figures for 2003, then just 2002 will do.
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Request for Question Clarification by
ephraim-ga
on
27 Aug 2003 19:47 PDT
There's some clarirication that's probably needed here.
Are you referring to bone marrow harvests or bone marrow transplants
into another person? A bone marrow / stem cell harvest takes place
when somebody has marrow remove directly from a bone in their body. Is
this what you're asking about? This is becoming rarer in the USA as
peripheral stem cell harvests become more common.
The reason for performing most of these harvests is so that the stem
cells can be transplanted into another person (whose marrow has been
killed due to sicknesses like leukemia) and take root in that person's
bones to form the new marrow. From what I recall, the marrow isn't
actually injected into the other person's bones, but is given just
like a blood transfusion.
There have also been situations where a bone marrow transplant has
been performed in an attempt to cure breast cancer, but I'm pretty
sure that this method is now discredited.
All four of the above situations have been referred to as parts of
"bone marrow transplants," so it would be a good idea for you to
explain exactly which of these you want to find out more about.
In addition, please be aware that while the information for the USA
should be reasonably easy to obtain, I don't know how easy it would be
to discover this information for the other countries you ask about.
There's a chance the information you want may not be in English, which
would make it difficult for somebody who doesn't speak Japanese,
Mandarin, Korean, Malay, Cantonese, and/or Thai to discover this info.
You may want to break this question down into components and reprice
it according to its difficulty.
/ephraim
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Clarification of Question by
mkremen-ga
on
28 Aug 2003 06:29 PDT
I am interested specifically in bone marrow transplants (not
peripheral blood stem cell), not the harvesting of bone marrow
(although presumably this number would be similar because the marrow
wouldn't be extracted from a donor unless there was an intended
donor).
with respect to the asian figures, if it is not possible to get
specific numbers for each of the countries i have listed, then a
general number for Asia, inclusive of all countries even those that i
have not enumerated.
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Clarification of Question by
mkremen-ga
on
28 Aug 2003 06:38 PDT
WILL ACCEPT AN ANSWER JUST FOR THE NUMBER OF BONE MARROW TRANSPLANTS
IN THE US. WILL POST THE ASIA NUMBER SEPERATELY.
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Request for Question Clarification by
ephraim-ga
on
28 Aug 2003 08:07 PDT
This data is proving harder to find than I thought it was.
I can find some data on unrelated transplants for 2002, but it isn't
broken down into peripheral vs. non-peripheral donations. Since they
are able to break down these numbers for spans of years, I'm assuming
they have this information, but I would probably need to make a phone
call to confirm this. Also, believe it or not, even though the data is
kept by a US-based registry, they sometimes share their marrow with
non-US based health providers, so I'd need to get some clarification
on this as well.
The only data I've found on related transplants was at individual
hospitals. There's got to be an overall number available somewhere,
but it wasn't something that was easy for me to find.
Obviously, you need a combination of the numbers for related and
unrelated transplants to make these numbers meaningful.
/ephraim
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Clarification of Question by
mkremen-ga
on
28 Aug 2003 08:14 PDT
yes, i've seen some information broken down between unrelated and
related (autologous vs. allogeneic), but i am only interested in a
combined figure representing the whole bone marrow transplant market.
With respect to the registries, most of the US registries (NMDP,
Caitlin Raymond) are also listed on bigger international registries
(BMDW). And while some units might be shipped out of the US for
transplant, I am really only interested in transplants performed in
the US.
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