thrombocytopenia in the absence of other blood cell abnormalities (normal rbc & wbc, normal...
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ITP
Idiopathic (Immune) Thrombocytopenic Purpura
Thrombocytopenia in the absence of other blood cell abnormalities (normal RBC & WBC, normal peripheral smear)
ITP 2 types-acute/chronic In children the commonly seen type
is acute ITP Follows vaccination or viral ifection
Pathogenesis Ab produced against pltlets Ab bound platelets are removed and
destroyed by the RES-spleen and liver
This cause thrombocytopenia
Clinical Manifestations May be acute or insidious onset Mucocutaneous Bleeding *petechiae, purpura, ecchymosis *epistaxis, gum bleeding *menorrhagia *GI bleed, CNS bleed = RARE
Diagnosis (of Exclusion) Rule out other causes:
Management of ITP
Goal = prevention of bleeding, NOT cure!
in many children ITP resolves spontaneously(10% end as chronic ITP)
General Mx Avoid contact sports Avoid NSAIDS Avoid IM injections Beware of signs of major bleed –
headache,LOC in ICH
Tx Usually no Tx needed Tx if pltlet low than 10000 or
major bleed -Prednisone-IvIg
Splenectomy in non resolving cases