Semin Thromb Hemost 2006; 32(3): 251-259
DOI: 10.1055/s-2006-939436
Copyright © 2006 by Thieme Medical Publishers, Inc., 333 Seventh Avenue, New York, NY 10001, USA.

Aspirin for the Control of Platelet Activation and Prevention of Thrombosis in Essential Thrombocythemia and Polycythemia Vera: Current Insights and Rationale for Future Studies

Raffaele Landolfi1 , 2 , Leonardo Di Gennaro2 , Linda Novarese2 , Carlo Patrono3
  • 1Professor
  • 2Institute of Internal Medicine and Geriatrics, Catholic University School of Medicine, Rome, Italy
  • 3Department of Pharmacology, University of Rome “La Sapienza,” Rome, Italy
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Publication History

Publication Date:
01 June 2006 (online)

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ABSTRACT

Polycythemia vera and essential thrombocythemia are chronic myeloproliferative disorders characterized by a relatively benign clinical course that may be complicated by arterial and venous thromboses. A thrombotic diathesis often manifests at diagnosis or in the preclinical phase of the myeloproliferative disease. Peculiar microcirculatory disturbances such as erythromelalgia and visual and hearing symptoms also commonly occur in these patients, and are highly responsive to aspirin. In a placebo-controlled trial in relatively low-risk polycythemic subjects, low-dose aspirin recently was shown to reduce the incidence of both arterial and venous thrombosis with a limited increase of the hemorrhagic risk. Due to its favorable benefit/risk profile, low-dose aspirin should be prescribed to all patients with polycythemia vera who have no contraindication to this treatment. Future studies should assess primarily the efficacy and safety of aspirin in essential thrombocythemia, and test the possible use of more aggressive antithrombotic strategies in high-risk polycythemic patients.

REFERENCES

Raffaele LandolfiM.D. 

Institute of Internal Medicine, Haemostasis Research Center, Catholic University School of Medicine

Largo Agostino Gemelli 8, 00168 Rome, Italy

Email: rlandolfi@rm.unicatt.it