What is the prognosis of paroxysmal nocturnal hemoglobinuria (PNH)?

Updated: May 20, 2021
  • Author: Emmanuel C Besa, MD; Chief Editor: Sara J Grethlein, MD, FACP  more...
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The prognosis in patients with paroxysmal nocturnal hemoglobinuria (PNH) is variable, depending on the severity of symptoms and the presence of complications. An aplastic phase is a serious prognostic factor, because the resulting pancytopenia and thrombosis of hepatic, abdominal, and cerebral veins can have life-threatening consequences. Prophylactic anticoagulation has not been shown to be of benefit because of a lack of data from a clinical trial setting.

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