The influence of multifetal pregnancy reduction on venous circulation of intacted fetuses

Abstract

Objective: To establish the possible influence of multifetal pregnancy reduction on venous circulation in fetuses continued their development.

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Methods: Doppler investigation of ductus venosus flow indices in 20 fetuses of 10 examined women. The maximal systolic velocity (S), diastolic velocity (D), flow velocity during atrial systole (A) and mean time flow velocity (TAV) were evaluated.

Results: The multifetal pregnancy reduction did not lead to reliable difference between values of qualitative indices before and after procedure: ductus venosus index (S-A)/S): 0.81 ± 0.06 and 0.78 ± 0.06; maximal venous velocity index (S-A/D): 1.0 ± 0.14 and 0.99 ± 0.14; pulsative index for veins (S-A)/TAV): 1.08 ± 0.19 and 1.05 ± 0.12; S/A ratio: 8.68 ± 5.74 and 8.76 ± 5.46; and systolo-diastolic ratio (S/D): 1.25 ± 0.12 and 1.27 ± 0.14.

Conclusions: The results demonstrate that there is no influence of this procedure on venous circulation indices in fetuses continued development and testify about its relative safety for fetal well-being.