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Clinical characteristics of essential thrombocythemia patients depend on the mutation status

Clinical characteristics of essential thrombocythemia patients depend on the mutation status AbstractThe impact of the mutation status on the clinical course and the outcome of essential thrombocythemia (ET) patients has not yet been completely established. A total of 171 patients with diagnosed ET were tested and subsequently grouped, according to their mutation status – Janus Kinase 2 (JAK2) – 112 patients, calreticulin (CALR) – 36 patients, and thrombopoietin receptor (MPL) – 5 patients. Moreover, 18 individuals were triple-negative (with non-mutated JAK2, CALR, and MPL). CALR-mutated patients preferentially were male, with higher platelets (PLT) counts (mean PLT = 1 002.3) and lower hemoglobin and hematocrit levels at the diagnosis, compared to the JAK2 (mean PLT = 933.6), MPL (mean PLT = 940.8) and triple-negative patients (mean PLT = 822.6) (p = 0.0035). The patients with CALR mutated, and the triple-negative ones had a lower risk of arterial and venous thrombosis (3% and 5.6% cases at the time of diagnosis, respectively) than the patients with JAK2 mutation (7.2%) (p = 0.9210). The overall survival rate did not differ statistically between the groups. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Haematologica Polonica de Gruyter

Clinical characteristics of essential thrombocythemia patients depend on the mutation status

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Publisher
de Gruyter
Copyright
© 2020 Polish Society of Hematology and Transfusion Medicine, Insitute of Hematology and Transfusion Medicine, published by Sciendo
eISSN
2300-7117
DOI
10.2478/ahp-2020-0040
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Abstract

AbstractThe impact of the mutation status on the clinical course and the outcome of essential thrombocythemia (ET) patients has not yet been completely established. A total of 171 patients with diagnosed ET were tested and subsequently grouped, according to their mutation status – Janus Kinase 2 (JAK2) – 112 patients, calreticulin (CALR) – 36 patients, and thrombopoietin receptor (MPL) – 5 patients. Moreover, 18 individuals were triple-negative (with non-mutated JAK2, CALR, and MPL). CALR-mutated patients preferentially were male, with higher platelets (PLT) counts (mean PLT = 1 002.3) and lower hemoglobin and hematocrit levels at the diagnosis, compared to the JAK2 (mean PLT = 933.6), MPL (mean PLT = 940.8) and triple-negative patients (mean PLT = 822.6) (p = 0.0035). The patients with CALR mutated, and the triple-negative ones had a lower risk of arterial and venous thrombosis (3% and 5.6% cases at the time of diagnosis, respectively) than the patients with JAK2 mutation (7.2%) (p = 0.9210). The overall survival rate did not differ statistically between the groups.

Journal

Acta Haematologica Polonica – de Gruyter

Published: Dec 1, 2020

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