Press Information about ITP
What does ITP stand for?
Immune Thrombocytopenic Purpura! (An autoimmune disorder (Immune)
causing a shortage of small cells in the blood known as platelets (Thrombocytopenic)
and bruising (Purpura).
What is ITP ?
A disorder in which the bodys immune system destroys platelets
in the blood. A normal platelet count is between 150- 400 (UK measurement).
People with ITP can have a platelet count under 5.
What causes ITP?
For most people there is no known cause, but for others, particularly
children it can follow a simple viral infection such as a cold or sore
throat. It has a slightly higher incidence in pregnancy and can also arise
whilst taking some medications or following vaccinations. ITP can occur
as a secondary condition to certain other illnesses.
Does it get worse over time?
No, unlike autoimmune diseases such as rheumatoid arthritis and Multiple
Sclerosis it is not a progressive disease, but the risk of bleeding is
present from the day the disease develops.
Who develops ITP ?
This rare condition can arise in anyone at any age, but acute ITP
(less than six months duration) is more common in children and chronic
ITP (often lasting for years or lifelong) is more common in adults.
How rare is ITP ?
There are only 3000 - 4000 ITP patients in the UK at any one time.
Most general hospitals will only be seeing one or two adults and children
with ITP.
How serious is the risk of bleeding?
At present doctors are unable to predict who will have an episode
of serious bleeding. Many people with ITP have few problems, whilst others
have a more difficult condition which needs aggressive treatment. People
with a count over 50 are much less likely to have severe symptoms than
those whose count is in single figures. It is extremely rare for ITP to
cause a fatal haemorrhage.
What is the treatment ?
Treatments, which are currently aimed at suppressing or confusing
the immune system, all have their dangers and drawbacks, only temporarily
raise the platelet count, but do not cure the disease.
What is the difference between ITP and hæmophilia?
Hæmophilia is inherited and permanent, ITP is not inherited,
and platelet counts can return to normal. Hæmophilia patients are
deficient in one of the 12 factors which act together to form a blood
clot. ITP patients are short of platelets which work independently as
the initial plug to stop blood leakage. Platelet infusions are only used
in emergencies as transfused platelets, like the patients own platelets,
are destroyed by their immune system in a matter of hours.
Is ITP contagious?
No it is not caught and can not be passed on.
Why is research into ITP necessary?
The ITP Support Association is funding clinical and data research
to try to discover the possible causes of ITP, who is at risk of developing
it, to predict the course of the disease and its most effective treatments.
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