Placenta slides of 65 IUFDs with known maternal thrombophilia test results (compound MTHFR C677T and A1298C heterozygosity, n = 10; MTHFR 677TT homozygosity, n = 3; protein S deficiency, n = 0; factor V Leiden mutation, n = 2; prothrombin gene mutation G20210A, n = 1; lupus anticoagulant, n = 2; antiphospholipid syndrome, n = 1; MTHFR C677T heterozygosity, n = 5; MTHFR A1298C heterozygosity, n = 4; and MTHFR 1298CC homozygosity, n = 2) and of 30 livebirths with positive maternal thrombophilia test results (n = 5, 2, 0, 9, 2, 0, 2, 7, 2 and 1, respectively, for those thrombophilias) were microscopically examined for septation, fetal vessel thrombosis, intimal fibrin cushions, avascular villi, haemorrhagic endovasculitis and fibromuscular sclerosis.
Polymorphism of MTHFR (677C > T and 1298A > C), PAI1 (-675 5G/4G and -844A > G), and F2 (20210G > A), and the F5 Leiden mutation, as well as biochemical parameters for hypercoagulability, were analysed.
The laboratory tests revealed high D-dimers, and positive IgG anti-cardiolipin and anti-beta2 glycoproteins I antibodies, whereas the genetic profile for thrombophilia revealed heterozygote mutation in MTHFR C677T and A1298C genes.