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Thrombotic Thrombocytopenic Purpura (TTP) is a rare but potentially fatal blood
disorder characterised by the formation of tiny blood clots within small blood
vessels throughout the body. These clots consume platelets, leading to
thrombocytopenia (low platelet count), while also damaging red blood cells,
causing microangiopathic haemolytic anaemia. The condition is most commonly
associated with a severe deficiency of the ADAMTS13 enzyme, either inherited or
caused by autoimmune antibodies that inhibit its activity.
Patients with TTP may
experience unexplained bruising, fatigue, pale skin, fever, confusion,
headaches, kidney dysfunction, or neurological symptoms such as seizures
and stroke-like episodes. Because the disease progresses rapidly, early
diagnosis and immediate treatment are essential to prevent life-threatening
complications.
Diagnosis involves blood
tests showing low platelets, fragmented red blood cells (schistocytes),
elevated lactate dehydrogenase (LDH), and reduced ADAMTS13 activity.
Prompt treatment usually includes plasma exchange therapy, corticosteroids,
immunosuppressive medications such as rituximab, and newer targeted therapies
like caplacizumab in appropriate cases. Supportive care may also be
required to manage complications.
With timely treatment,
survival rates have improved significantly. However, untreated TTP
carries a very high mortality rate. Regular follow-up is important to monitor
recovery, detect relapses, and manage long-term health risks associated with
this serious haematological disorder.