Myeloproliferative disorders: complications, survival and causes of death.

Abstract:

:This retrospective single-center study compared thromboembolic and hemorrhagic complications, survival and causes of death in a cohort of 102 consecutive patients with myeloproliferative disorders (MPD). We included 17 patients with essential thrombocythemia (ET), 59 with polycythemia vera (PV), and 26 with osteomyelofibrosis (OMF). The median follow-up was 3.7 years. Estimated 8-year probability of complications for the entire cohort was 80 +/- 11% (95% confidence interval), without significant differences among MPD subgroups. The rate of thromboembolic complications, expressed as the number of events per 100 patient years, was 16.7 for patients with PV, 13.8 for OMF, and 7.5 for ET. Fifty-four percent of thromboembolic events in PV involved cerebral or limb arteries. The rate of bleeding complications was highest in patients with OMF (31.8 per 100 patient years), followed by ET and PV (11.8). Ninety percent of bleeding episodes affected the skin. mucosal membranes, and the gastrointestinal tract. Eight-year survival was highest in ET with 91 +/- 17%, followed by PV (66 +/- 18%) and OMF (40 +/- 31%) (P< 0.01). Twenty-four patients died during the observation period, and fatal thrombosis (in five patients) represented the leading cause of death. Only two patients with MPD died from fatal hemorrhage and one from acute leukemia. We conclude that survival is highest in ET and lowest in OMF. Both thromboembolic and hemorrhagic complications are frequent. However, thrombosis appears to be more often fatal than bleeding complications. Prophylaxis of thromboembolic events remains a key issue in the management of MPD.

journal_name

Ann Hematol

journal_title

Annals of hematology

authors

Brodmann S,Passweg JR,Gratwohl A,Tichelli A,Skoda RC

doi

10.1007/s002779900136

subject

Has Abstract

pub_date

2000-06-01 00:00:00

pages

312-8

issue

6

eissn

0939-5555

issn

1432-0584

journal_volume

79

pub_type

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