Browsing by Author "Lucijanic, Marko (36082720300)"

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Background: This study aimed to evaluate the clinical and prognostic associations of the systemic inflammatory index (SII) in polycythemia vera (PV) patients. SII integrates information on absolute neutrophil (ANC), lymphocyte (ALC), and platelet counts into one index (calculated as ANCxALC/platelet count) and was previously shown to predict thrombotic and mortality risks in the general population. Methods: A total of 279 PV patients treated in several hematologic centers in Croatia and Serbia was retrospectively evaluated. Results: The median SII for the overall cohort was 1960. Higher SII stratified at the specific cut-off points was significantly associated with shorter time to thrombosis (TTT; p = 0.004) driven by arterial thrombotic events, and shorter overall survival (OS; p < 0.001). Higher SII was able to refine the European Leukemia Net-defined high-risk patient subgroup for both thrombotic and survival risks, especially in individuals over 60 years of age. SII and all other evaluated CBC components and indices (leukocytes, ANC, ALC, platelets, neutrophil to lymphocyte ratio (NLR), and platelet to lymphocyte ratio (PLR)) demonstrated low-to-modest prognostic properties, whereas SII outperformed other parameters with respect to TTT and OS prognostications. Discussion: The presented results complement prior studies evaluating the prognostic performance of different CBC components for thrombotic and survival risk predictions and offer more options to personalize PV treatments. © 2024 by the authors.

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Standard ELN risk stratification for thrombosis and overall survival (OS) in patients with polycythemia vera (PV) is based on advanced age and history of thrombosis. Recently, the triple A (AAA) risk model was developed for OS prediction in patients with essential thrombocythemia, which, besides rising age, incorporates high (≥8x109/L) absolute neutrophil and low(<1.7 × 109/L) lymphocyte counts. The presented multicenter international study on a large cohort of PV patients validated the findings from prior reports and demonstrated excellent prognostic properties of the triple A model with respect to both thrombosis and survival in PV. Moreover, it revealed that the addition of patient comorbidities (assessed through the Charlson comorbidity index (CCI)) to ELN and triple A score may not help to further refine the survival prognostication of these patients. Therefore, the triple A score with its simplicity seems to offer excellent balance during the initial risk assessment in PV, implicating its global applicability. © 2025 Informa UK Limited, trading as Taylor & Francis Group.

Standard ELN risk stratification for thrombosis and overall survival (OS) in patients with polycythemia vera (PV) is based on advanced age and history of thrombosis. Recently, the triple A (AAA) risk model was developed for OS prediction in patients with essential thrombocythemia, which, besides rising age, incorporates high (≥8x109/L) absolute neutrophil and low(<1.7 × 109/L) lymphocyte counts. The presented multicenter international study on a large cohort of PV patients validated the findings from prior reports and demonstrated excellent prognostic properties of the triple A model with respect to both thrombosis and survival in PV. Moreover, it revealed that the addition of patient comorbidities (assessed through the Charlson comorbidity index (CCI)) to ELN and triple A score may not help to further refine the survival prognostication of these patients. Therefore, the triple A score with its simplicity seems to offer excellent balance during the initial risk assessment in PV, implicating its global applicability. © 2025 Informa UK Limited, trading as Taylor & Francis Group.