Abstract:
BACKGROUND:Thrombosis is the major risk factor for death in patients with paroxysmal nocturnal hemoglobinuria. Previous case reports indicate that venous thrombosis in patients with paroxysmal nocturnal hemoglobinuria is amenable to thrombolysis. DESIGN AND METHODS:We reviewed the outcome of thrombolytic therapy for patients with paroxysmal nocturnal hemoglobinuria who had thromboses refractory to anticoagulation at our institutions. RESULTS:In this study of 41 patients who had at least one thrombotic event, we confirmed a very high incidence of recurrence despite anticoagulation. Nine patients with thrombosis were regarded as eligible for administration of intravenous tissue plasminogen activator, which was effective in reversing thrombi in all of 15 occasions in which it was given. Serious hemorrhagic complications developed in three cases. At last follow-up visit, of the nine patients treated, three had died, and six were in very good to excellent condition in terms of clinical outcome and radiological findings. The only patient in whom thrombolysis may have contributed to a fatal outcome also had complications of "heparin induced thrombocytopenia with thrombosis", which we diagnosed in three additional patients. In our review of the literature, nine out of 15 patients treated with thrombolysis have had a good outcome. CONCLUSIONS:Although it is associated with a significant but manageable risk of bleeding, systemic thrombolysis is a highly effective treatment for reversing venous thromboses in patients with paroxysmal nocturnal hemoglobinuria.
journal_name
Haematologicajournal_title
Haematologicaauthors
Araten DJ,Notaro R,Thaler HT,Kernan N,Boulad F,Castro-Malaspina H,Small T,Scaradavou A,Magnan H,Prockop S,Chaffee S,Gonsky J,Thertulien R,Tarquini R,Luzzatto Ldoi
10.3324/haematol.2011.049767subject
Has Abstractpub_date
2012-03-01 00:00:00pages
344-52issue
3eissn
0390-6078issn
1592-8721pii
haematol.2011.049767journal_volume
97pub_type
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