Assessment Of Serum Cyanocobalamin Level And Importance In Patients With Hematological Malignancies

ABSTRACT Aim: In our study, we planned to investigate the effect of serum cyanocobalamin (Vitamin B12) levels at the time of diagnosis in patients with various hematological malignancies. Patients and Methods: Two hundred and one patients between 18-75 years old diagnosed with various hematological malignancies and 30 healthy controls applying to outpatient and inpatient clinics of Hematology Department in Necmettin Erbakan University Meram Faculty of Medicine between 2010-2014 years were included in the study. Demographic and clinical data and laboratory findings of the patients included in the study were recorded retrospectively. Results: A total of 231 patients, 132 men (57.1%) and 99 women (42.9%), were included in our study, of which 201 were patients and 30 were healthy controls. The mean serum vitamin B12 concentration of all patients was found as 344.9 ± 279.0 pg/mL. When vitamin B12 levels were analyzed according to diagnostic groups, it was found to be highest in CML (596.0 ± 428.3 pg / mL) and ALL (524.5 ± 442.6 pg / mL) patients and lowest in AML patients (240.9 ± 178, 0 pg / mL); the difference was statistically significant (p