Journal of obstetrics and women's diseasesJournal of obstetrics and women's diseases1684-04611683-9366Eco-Vector8881510.17816/JOWD88815EditorialFetal brain venous return in complicated pregnancyAilamazyanEduard K.<p>Academician of the Russian Academy of Medical Sciences, Honored Scientist of the Russian Federation, Professor, Director</p>info@eco-vector.comPolyaninAlbert A.<p>Professor</p>info@eco-vector.comKoganIgor Y.<p>Professor, Faculty of Medicine</p>info@eco-vector.comResearch Institute of Obstetrics, Gynecology and Reproductology named after D.O. OttState Medical University named after acad. I.P. PavlovaSaint Petersburg State University1501200251110141501200221112021Copyright © 2002, Eсо-Vector2002<p><strong>Objective.</strong> To estimate the fetal brain venous return in the complicated pregnancy.</p>
<p><strong>Methods.</strong> Blood flow waveforms (BFW) in jugular vein (JV) were recorded in 162 fetuses from 13 to 40 weeks of normal gestation and in 63 growth restricted fetuses. Peak velocity in ventricular systole (S), peak velocity in early diastole which corresponds to passive ventricular filling (D), peak velocity in atria contraction with active ventricular filling (A), mean velocity (TAV) were measured and pulsatility index (PIV=S-A/TAV), systolic to diastolic ratio (S/D) were calculated.</p>
<p><strong>Results.</strong> S, D, A, TAV in growth restricted fetuses were significantly greater and PIV, S/D were significantly lower than in normal fetuses after 36 weeks of gestation.</p>
<p><strong>Conclusions.</strong> The results demonstrate that there are neuroprotective reactions of fetal cerebral venous blood flow after 36 weeks of gestation.</p>fetal braincomplicated pregnancyfeatures of the outflow of venous blood in the fetal brainголовной мозг плодаосложненная беременностьособенности оттока венозной крови головного мозга плода