Résumé
Introduction.
Hyperhomocysteinemia (HHC) is one of the arms in the pathogenesis of thrombotic complications in female cancer patients.
Aim:
to assess an HHC-related impact to developing thrombotic complications in patients with malignant neoplasms of the female genital organs and breast cancer.
Materials and Methods.
There were retrospectively evaluated the data collected from 236 patients: with ovarian tumors (n = 63), cervical cancer (n = 51), breast tumors (n = 64), malignant neoplasms of the uterine body (n = 58). The control group consisted of 50 women without malignant neoplasms. The analysis of homocysteine (HC) concentration, the frequency of polymorphisms of the genes encoding folate cycle enzymes
MTHFR
C677T,
MTHFR
A1298C,
MTRR
A66G,
MTR
A2756G as well as the rate of thrombotic complications was carried out. A risk of blood HC level-related thrombotic complications was assessed.
Results.
Plasma HC concentration comprised ≥ 22 μmol/l in 30.5 % of patients. Thrombotic complications within one year after discharge from the hospital were developed in 15.3 % cases. The risk of thrombotic complications turned out to be higher in patients with elevated plasma HC level (≥ 22 μmol/l) (odds ratio = 2.99; 95 % confidence interval = 1.11–8.08). No significantly increased prevalence of polymorphisms in the genes encoding folate cycle enzymes among female cancer patients was detected.
Conclusion.
Monitoring HC level in female cancer patients contributes separately to predict a likelihood of thrombotic complications. Prescribing drugs that reduce HC level (folic acid) and monitoring its concentration in female cancer patients during therapy, including chemotherapy, can potentially lower an incidence of thrombotic complications.