Journals / Selçuk Tıp Dergisi / 2020 / Cilt: 36 - Sayı: 1

Can Serum B12 Level Be Used As An Effective Differential Criterion in Differential Diagnosis of Primary and Secondary Polycythemia?

Pages
22–26
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

However, there is a need for prospective studies performed with larger patient series supporting the data obtained in this study in order for serum vitamin B12 level to be used in the differential diagnosis of primary and secondary polycythemia.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Aim: JAK2 V617F mutation is determined in 95% of polycythemia vera (PV) patients.
📊
Key Findings & Data:In this study, a rapid, inexpensive and easily available test that can be used in addition to JAK2 V617F mutation is planned to exclude secondary polycythemia (SP).Patients and Methods: A total of 39 PV patients and 51 SP patients, who were diagnosed according to 2016 diagnostic criteria of World Health Organization, have been included in this study.
💡
Conclusion & Impact:However, there is a need for prospective studies performed with larger patient series supporting the data obtained in this study in order for serum vitamin B12 level to be used in the differential diagnosis of primary and secondary polycythemia.
🔬Design:Research Article
📍Scope:2016 Verileri
⚙️Variables:Domain Parameters

Özet

Aim: JAK2 V617F mutation is determined in 95% of polycythemia vera (PV) patients. However, this test is a high-cost and time-consuming examination. In this study, a rapid, inexpensive and easily available test that can be used in addition to JAK2 V617F mutation is planned to exclude secondary polycythemia (SP).Patients and Methods: A total of 39 PV patients and 51 SP patients, who were diagnosed according to 2016 diagnostic criteria of World Health Organization, have been included in this study. Demographics, physical examination findings and laboratory results of patients have been determined. A statistical analysis was performed between these two groups.Results: In PV group, serum vitamin B12 level, erythrocyte count, leukocyte count, neutrophil count, platelet count and lactate dehydrogenase levels were determined to be statistically significantly higher than SP group. Serum vitamin B12 level above 343 pg/mL has been determined as the threshold value for the differentiation of PV from SP.Conclusion: High serum vitamin B12 level was determined to be associated with PV. However, there is a need for prospective studies performed with larger patient series supporting the data obtained in this study in order for serum vitamin B12 level to be used in the differential diagnosis of primary and secondary polycythemia.

🔖

Cite This Article

DEMİRCİOĞLU, S., DOGAN, A., BUDANCAMANAK, S. (2020). Can Serum B12 Level Be Used As An Effective Differential Criterion in Differential Diagnosis of Primary and Secondary Polycythemia?. Selçuk Tıp Dergisi, Cilt: 36 - Sayı: 1, 22–26. https://ajindex.com/articles/319026

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (17)

  1. Arber DA, Orazi A, Hasserjian R, et al. The 2016 revision to the world health organization classification of myeloid neoplasms and acute leukemia. Blood 2016;127(20):2391-405
  2. McMullin MF, Bareford D, Campbell P, et al. Guidelines for the diagnosis, investigation and management of polycythaemia/erythrocytosis. Br J Haematol 2005;130(2):174-95
  3. Kew MC, Fisher JW. Serum erythropoietin concentrations in patients with hepatocellular carcinoma. Cancer 1986;58(11):2485-8
  4. Weaver LK. Clinical practice. Carbon monoxide poisoning. N.Engl J Med 2009;360(12):1217-25
  5. Da Silva JL, Lacombe C, Bruneval P, et al. Tumor cells are the site of erythropoietin synthesis in human renal cancers associated with polycythemia. Blood 1990;75(3):577-82
  6. Wiesener MS, Seyfarth M, Warnecke C, et al. Paraneoplastic erythrocytosis associated with an inactivating point mutation of the von Hippel-Lindau gene in a renal cell carcinoma. Blood 2002;99(10):3562-5
  7. James C, Ugo V, Le Couedic JP, et al. A unique clonal JAK2 mutation leading to constitutive signalling causes polycythaemia vera. Nature 2005;434(7037):1144-8
  8. Keohane C, McMullin MF, Harrison C. The diagnosis and management of erythrocytosis. BMJ 2013;347:f6667
  9. Manzanares W, Hardy G. Vitamin B12: The forgotten micronutrient for critical care. Curr Opin Clin Nutr Metab Care 2010;13(6):662-8
  10. Brady J, Wilson L, McGregor L, et al. Active B12: A rapid, automated assay for holotranscobalamin on the Abbott AxSYM analyzer. Clin Chem 2008;54(3):567-73
  11. Ermens AA, Vlasveld LT, Lindemans J. Significance of elevated cobalamin (vitamin B12) levels in blood. Clin Biochem 2003;36(8):585-90
  12. Carmel R, Tatsis B, Baril L. Circulating antibody to transcobalamin II causing retention of vitamin B12 in the blood. Blood 1977;49(6):987-1000
  13. Gimsing P. Cobalamin forms and analogues in plasma and myeloid cells during chronic myelogenous leukaemia related to clinical condition. Br J Haematol 1995;89(4):812-9
  14. Demircioğlu S, Yeler A, Doğan A. Evaluation of serum B12 level in patients with acute myeloid leukemia. LLM Dergi 2018;2(4):89-92
  15. Omer A, Finlayson ND, Shearman DJ, et al. Erythrocyte vitamin B12 activity in health, polycythemia, and in deficiency of vitamin B12 and folate. Blood 1970;35(1):73-82
  16. Rachmilewitz B, Manny N, Rachmilewitz M. The transcobalamins in polycythaemia vera. Scand J Haematol 1977;19(5):453-62
  17. Berlin NI. Diagnosis and classification of the polycythemias. Semin Hematol 19