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Correlation of blood counts with vascular complications in essential thrombocythemia: analysis of the prospective PT1 cohort
Open accessAbstract
Essential thrombocythemia, a myeloproliferative neoplasm, is associated with increased platelet count and risk of thrombosis or hemorrhage. Cytoreductive therapy aims to normalize platelet counts despite there being only a minimal association between platelet count and complication rates. Evidence is increasing for a correlation between WBC count and thrombosis, but prospective data are lacking. In the present study, we investigated the relationship between vascular complications and 21 887 longitudinal blood counts in a prospective, multicenter cohort of 776 essential thrombocythemia patients. After correction for confounding variables, no association was seen between blood counts at diagnosis and future complications. However, platelet count outside of the normal range during follow-up was associated with an immediate risk of major hemorrhage (P = .0005) but not thrombosis (P = .7). Elevated WBC count during follow-up was correlated with thrombosis (P = .05) and major hemorrhage (P = .01). These data imply that the aim of cytoreduction in essential thrombocythemia should be to keep the platelet count, and arguably the WBC count, within the normal range. This study is registered at the International Standard Randomized Controlled Trials Number Registry (www.isrctn.org) as number 72251782.
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Cited by
Cardiovascular Events and Intensity of Treatment in Polycythemia Vera
Marchioli, R., Finazzi, G., Specchia, G., Cacciola, R., Cavazzina, R., Cilloni, D., De Stefano, V., Elli, E., Iurlo, A., Latagliata, R., et al. (2013) · New England Journal of Medicine · doi:10.1056/nejmoa1208500 · Cited by 846
Connelly‐Smith, L., Alquist, C. R., Aqui, N. A., Hofmann, J. C., Klingel, R., Onwuemene, O. A., Patriquin, C. J., Pham, H. P., Sanchez, A. P., Schneiderman, J., et al. (2023) · Journal of Clinical Apheresis · doi:10.1002/jca.22043 · Cited by 684
Wolach, O., Sellar, R. S., Martinod, K., Cherpokova, D., McConkey, M., Chappell, R. J., Silver, A. J., Adams, D., Castellano, C. A., Schneider, R. K., et al. (2018) · Science Translational Medicine · doi:10.1126/scitranslmed.aan8292 · Cited by 481
Gisslinger, H., Gotic, M., Holowiecki, J., Penka, M., Thiele, J., Kvasnicka, H.-M., Kralovics, R., & Petrides, P. E. (2013) · Blood · doi:10.1182/blood-2012-07-443770 · Cited by 330
Hultcrantz, M., Björkholm, M., Dickman, P. W., Landgren, O., Derolf, Å. R., Kristinsson, S. Y., & Andersson, T. M. L. (2018) · Annals of Internal Medicine · doi:10.7326/m17-0028 · Cited by 268
Metadata
- Authors
- Campbell, P. J., MacLean, C., Beer, P. A., Buck, G., Wheatley, K., Kiladjian, J.-J., Forsyth, C., Harrison, C. N., & Green, A. R.
- Venue
- Blood
- Publisher
- American Society of Hematology
- Published
- 2012-08-16
- Volume
- 120
- Issue
- 7
- Pages
- 1409-1411
- ISSN
- 0006-4971 (ISSN-L)
- 1528-0020
- OpenAlex
- W1982267544
- Cited by
- 221
- References
- 0
- FWCI
- 6.38
- Type
- journal article
- Language
- en
- Open access
- green
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- Campbell, P. J., MacLean, C., Beer, P. A., Buck, G., Wheatley, K., Kiladjian, J.-J., Forsyth, C., Harrison, C. N., & Green, A. R. (2012). Correlation of blood counts with vascular complications in essential thrombocythemia: analysis of the prospective PT1 cohort. Blood. https://doi.org/10.1182/blood-2012-04-424911
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