Hemostatic system parameters and level of magnesium in patients with beta-thalassemiа

Abstract

Aim. To study the hemostatic system parameters and magnesium levels in patients with beta-thalassemia.

Methods. The object of the study was the blood serum of 96 women with beta-thalassemia: 46 patients with intermediate beta-thalassemia and 50 patients with beta-thalassemia minor, without clinical manifestations of hypercoagulation. The blood serum of 30 healthy donors was used as the control group. It was studied hemostasis system parameters: platelet count activated partial thromboplastin time (aPTT), prothrombin time, plasma fibrinogen level, D-dimer level, euglobulin clot lysis time, antithrombin III activity. The serum magnesium level and risk of deficiency were determined using the MDQ questionnaire.

Results. In patients with intermediate beta-thalassemia, an increase in the level of thrombinemia marker D-dimer (>500 ng/ml) was revealed. Patients with intermediate beta-thalassemia were divided into two groups according to the revealed level of D-dimer: 14 (30.4±6.8%) patients with latent hypercoagulation in group 1 and 32 (69.6±6.8%) patients without latent hypercoagulation in group 2. It was found that in the group with a high levels D-dimer, fibrinogen level was increased (p <0.05), fibrinolysis time was prolonged (p <0.05), activated partial thromboplastin time was shortened (p <0.05), and antithrombin III activity was slightly reduced (p >0.05). The serum magnesium level in patients of the first group was lower (t=7.3; p <0.001), and the risk of deficiency in the questionnaire was higher than in patients of the second group (r=–0.785, p <0.05). Hemostasis and magnesium levels in patients with beta-thalassemia minor did not differ from the control group (p >0.05).

Conclusion. One-third of patients with intermediate beta-thalassemia have a pre-thrombotic state for hemostasis — latent hypercoagulation and magnesium deficiency which can be predictors of clinical signs of thrombosis.

Keywords

beta-thalassemia / latent hypercoagulation / D-dimer / magnesium deficiency

RIGHTS & PERMISSIONS

Aliyeva N.R.