Browsing by Author "Arsenović, Isidora (58551558700)"

Higher neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) have been associated with increased risk of thrombosis, cardiovascular mortality, but their role in myeloproliferative neoplasms (MPN) remains unclear. We analyzed NLR and PLR as prognostic markers for thrombosis and overall survival (OS) in the study that included 461 consecutive MPN patients who were diagnosed from 2018 to 2022 at University center. Twenty age-matched patients without hematological disorder were used as controls. NLR and PLR were significantly increased in whole MPN group compared to controls. NLR was highest in PV > PMF > ET (p < 0.001) while PLR was highest in ET > PMF > PV (p < 0.001). Thrombosis occurrence during follow-up correlated with NLR, NLR ≥ 4.5, presence of ≥ 2 CV factors and previous thrombosis. Arterial thrombosis was associated with previous thrombosis, NLR and NLR ≥ 4.5. Similarly in venous thrombosis previous thrombosis was risk factor, together with NLR, NLR ≥ 4.5, PLR, but also secondary malignancy and female gender. In multivariate Cox model, most important factors for thrombosis development during follow-up were previous thrombosis, NLR ≥ 4.5 and PLR ≥ 500; for arterial thrombosis, NLR ≥ 4.5 and previous thrombosis; for venous thrombosis PLR ≥ 500 and previous thrombosis. Patients with pre-PMF had significantly higher NLR than ET patients. In multivariate Cox regression model, most important factors associated with survival were NLR ≥ 4.5 and PLR ≥ 500. This study highlights strong prognostic correlation of NLR ≥ 4.5 and PLR ≥ 500 with development of thrombosis and OS in MPN. Besides previous thrombosis, most important factor associated with development of arterial thrombosis is NLR ≥ 4.5 and for venous PLR ≥ 500. Our results revealed that NLR ≥ 4.5 could be used as additional marker to distinguish ET from prePMF. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.

Introduction. Thymic hyperplasia is a rare condition caused by an increase in cellular thymic mass and, in some cases, is associated with autoimmune diseases, such as pure red cell aplasia (PRCA). Thymectomy is considered the most effective therapy for PRCA associated with thymoma, with a 31.5% complete remission rate. Other treatments may induce partial remissions, but complete remission remains elusive. A case of PRCA attributed to thymic hyperplasia is presented, highlighting the effectiveness of thymectomy. Case report. A previously healthy 18-year-old woman presented with severe anemia and after hematological evaluation, including bone marrow biopsy confirmation, a diagnosis of PRCA was made. Immunological and virological analyses were unremarkable. Given the history of thymoma in the family and the known association between thymoma and PRCA, a chest magnetic resonance imaging was performed, which proved the existence of thymic hyperplasia. The patient underwent the least invasive surgical procedure – total thymectomy using video-assisted thoracic surgery approach. Pathohistological examination of the operative material confirmed the presence of thymic hyperplasia with a simple intrathymic cyst. Following thymectomy, the patient’s hematological values significantly improved. Conclusion. The course and outcome of the patient’s treatment support the role of thymectomy in PRCA associated with thymic hyperplasia. However, further research and follow-up are needed to optimize management strategies for this rare condition. © 2024 Inst. Sci. inf., Univ. Defence in Belgrade. All rights reserved.