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Other names people use for this condition
Primary thrombocythemia
Hemorrhagic thrombocythemia
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Essential thrombocythemia
Essential thrombocythemia
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Essential thrombocythemia
belongs to a group of conditions called
myeloproliferative disorders
. Myeloproliferative disorders cause
platelets
,
white blood cells
and
red blood cells
to grow abnormally in the bone marrow (the soft tissue inside the hollow part of bones that helps form blood cells). In essential thrombocythemia the body produces too many
platelet cells
. The signs and symptoms vary from person to person, with up to two-thirds of patients not having any symptoms when the platelet cell count first increases. Signs and symptoms may include significant increased production of megakaryocyte (a cell in the bone marrow that is responsible for making platelets), enlargement of the spleen (
splenomegaly
), and bleeding or clotting episodes or both.
[1]
References
Primary thrombocythemia. MedlinePlus Medical Encyclopedia. March 2, 2009 Available at:
http:/
/
www.nlm.nih.gov/
medlineplus/
ency/
article/
000543.htm
. Accessed June 4, 2009.
Questions & Answers (Found 1 Question)
A list of questions from the public on rare and/or genetic diseases that have been answered by the Genetic and Rare Disease Information Center. Click on each question to find the answer.
What causes essential thrombocythemia? How long do you live with it? What was the oldest that live with the disorder?
(
Click here for answer
)
Show All Resources
For more information about Essential thrombocythemia click on the boxes below:
More Detailed Information
NLM Gateway
Medical Products
Support Groups
Clinical Trials & Research
More Detailed Information (Found 6 resources)
Links where you can find more general information, comprehensive resources, selected full text journal articles, and news updates
General
The
CMPD Education Foundation
provides online information on myeloproliferative disorders (MPD). Click on the link to view the resource.
eMedicine
provides information on this topic. Click on the link to view this information. You may need to register to view the medical textbook, but registration is free
MedlinePlus
, a Web site designed by the National Library of Medicine Web site to help you research your health questions, provides more information about this topic. Click on the link to view this information.
The
National Cancer Institute
provides the most current information on cancer for patients, health professionals, and the general public. Click on the link to view information on this topic.
Orphanet
is a database dedicated to information on rare diseases and orphan drugs. Access to this database is free of charge. Click on the link to read information on this topic.
PubMed
is a searchable database of medical literature and lists journal articles that discuss Essential thrombocythemia. Click on the link to view a sample search on this topic.
NLM Gateway (Found 1 resource)
A tool to search across multiple resources offered on the National Library of Medicine's Website
NLM Gateway
allows users to search many resources offered on the National Library of Medicine's Web site at once to quickly find more information about this condition. Some of the resources may be a duplicate of the resources listed on this page. To search NLM Gateway, click on the link; the condition name will already be in the search box, so you can just click the “Search” button.
Medical Products (Found 1 resource)
U.S. Food and Drug Administration
The Office of Orphan Products Development (OOPD)
The medications listed in the table below have been
approved
by the
Food and Drug Administration
(FDA) for treatment of this condition. The FDA Office of Orphan Products Development designates "
orphan products
" for those that treat
rare diseases affecting fewer than 200,000 Americans
. The table below may not be an exhaustive list of drugs or products used to treat this condition. There may be other products available that are not considered orphan products. To search all FDA approved drugs, visit
Drugs@FDA
You can find orphan products used to treat other conditions by searching the
Orphan Drug Product Designation database
.
Generic Name
Trade Name
(Manufacturer Name)
Indication
Resources
Anagrelide
Agrylin®
(Shire)
Treatment of patients with essential thrombocythemia to reduce the elevated platelet count and the risk of thrombosis and to ameliorate associated symptoms.
Daily Med
MedlinePlus
Umbrella Organizations
|
Disease-Specific Organizations
|
Live Chat/E-mail Lists
|
Parent Matching Organizations
Support Groups (Found 9 resources)
Groups providing a wide range of services, supportive resources, and information
Umbrella Organizations
Genetic Alliance
4301 Connecticut Avenue NW
Suite 404
Washington, DC 20008-2369
Telephone: 202-966-5557
Fax: 202-966-8553
E-mail:
info@geneticalliance.org
Web site:
http://www.geneticalliance.org
National Organization for Rare Disorders (NORD)
55 Kenosia Avenue
PO Box 1968
Danbury, CT 06813-1968
Toll-free: 1-800-999-6673 (voicemail only)
Telephone: 203-744-0100
TTY: 203-797-9590
Fax: 203-798-2291
E-mail:
orphan@rarediseases.org
Web site:
http://www.rarediseases.org/
Disease-Specific Organizations
Myeloproliferative Disease Support and Daily Email Digest
Friends of ET Research
10445 Terra Lago Dr.
West Palm Beach, FL 33412
Telephone: 561-253-8061
E-mail:
info@friendsofETresearch.org
Web site:
http://www.friendsofetresearch.org
MPD Foundation
233 S. Wacker Drive
Suite 375
Chicago, IL 60606
Fax: 312-332-0840
Telephone: 312-683-7243
E-mail:
rrosen@mpdfoundation.org
Web site:
http://www.mpdfoundation.org
Live Chat/E-mail Lists
MPD-Support
: Myeloproliferative Diseases Support and Daily E-mail Digest
The National Organization of Rare Disorders (NORD) has partnered with Inspire.com to launch an online community for people with rare diseases called
The NORD Rare Disease Community
. This community connects medical patients, family members, caregivers, and professionals. Click on The NORD Rare Disease Community to learn more.
RareShare
is an online social hub dedicated to patients, families and healthcare professionals affected by rare medical disorders. Click on RareShare to learn more.
Parent Matching Organizations
Madisons Foundation
P.O. Box 241956
Los Angeles, CA 90024
Telephone: 310-264-0826
Fax: 310-264-4766
E-mail:
getinfo@madisonsfoundation.org
Web site:
http://www.madisonsfoundation.org/
Clinical Trials & Research (Found 3 resources)
Resources where you may find research studies and clinical trials
ClinicalTrials.gov
lists trials that are studying or have studied Essential thrombocythemia. Click on the link to go to ClinicalTrials.gov to read descriptions of these studies.
The
Myeloproliferative Disorders Research Consortium (MPD-RC)
is an international, multi-institutional non-profit consortium funded by the National Cancer Institute (NCI) at the National Institutes of Health and set up to coordinate, facilitate, and perform basic and clinic research investigating the genetics of MPDs with the goal of developing therapy. To learn more, click on the link.
The Research Portfolio Online Reporting Tool (RePORT) provides access to reports, data, and analyses of research activities at the National Institutes of Health (NIH), including information on NIH expenditures and the results of NIH-supported research. Although these projects may not conduct studies on humans, you may want to contact the investigators to learn more. To search for studies, click on the link and enter the disease name in the "Terms Search" box. Then click "Submit Query".
Link:
http://projectreporter.nih.gov/reporter.cfm
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