A noninvasive method for the prediction of fetal hemolytic disease

Abstract

Objective: to improve the diagnosis of fetal hemolytic disease. Subjects and methods. A study group consisted of 42 pregnant women whose newborn infants had varying degrees of hemolytic disease. The women were divided into 3 subgroups according to the severity of neonatal hemolytic disease: 1) pregnant women whose neonates were born with severe hemolytic disease (n = 14); 2) those who gave birth to babies with moderate hemolytic disease (n = 11); 3) those who delivered infants with mild hemolytic disease (n = 17). A comparison group included 42 pregnant women whose babies were born without signs of hemolytic disease. Curvesfor blood flow velocity in the middle cerebral artery were analyzed in a fetus of 25 to 39 weeks’ gestation. Results. The peak systolic blood flow velocity was observed in Subgroup 1; however, the indicator did not exceed 1.5 MoM even in severe fetal anemic syndrome. The fetal middle artery blood flow velocity rating scale was divided into 2 zones: 1) the boundary values of peak systolic blood flow velocity from the median to the obtained midscore; 2) the boundary values of peak systolic blood flow velocity of the obtained values of as high as 1.5 MoM. Conclusion. The value of peak systolic blood flow velocity being in Zone 2, or its dynamic changes by transiting to this zone can serve as a prognostic factor in the development of severe fetal hemolytic disease.