METHOD FOR PREDICTION OF RISK LEVEL OF UNFAVOURABLE PERINATAL OUTCOMES IN INTRAUTERINE INFECTION Russian patent published in 2014 - IPC A61B5/452 A61B8/06 

FIELD: medicine.

SUBSTANCE: mother's and foetus's heart rate variability is measured. A coefficient of variation the foetus's full array of RR intervals in the original state CV F I, a resistance index of the umbilical artery RI, a coefficient of variation of the mother's full array of RR intervals in the original state CV M, mother's RR_min in the period of recovery of a mental test RR_min M III are determined. ∑₁, ∑₂, ∑₃ are calculated by formulas: ∑₁=2 (original foetus's CV less than 5.4)+3 (RI less than 0.58)+3 (original mother's CV less than 7.8)+2 (original mother's RR_min less than 531); ∑₂=2 (CV F I less than 5.4)+3 (RI more than 0.58)+2 (CV M I less than 0.78)+4 (RR_min M I less than 531); ∑₃=3 (CV F I less than 5.4)+3 (CV M I less than 7.8)+3 (RI more than 0.58). The values ∑₁ falling within the range of 0 to 2 show a low risk; within the range of 3 to 5 points - a moderate risk; from 6 to 10 points - a high risk; the values ∑₂ from 0 to 2 show a low risk, from 3 to 5 points - a moderate risk, from 6 to 11 points - a high risk; the values ∑₃ from 0 to 3 testifies to a low risk, from 4 to 9 points - to a high risk of unfavourable perinatal outcomes. The risks derived from the three values: ∑₁, ∑₂, ∑₃ are used to evaluate a risk level of the unfavourable perinatal outcomes in intrauterine infection.

EFFECT: higher prediction accuracy.

3 ex, 6 tbl, 3 dwg