Fetal therapy guidelines — fetal echocardiography is of special value. Statement of the Polish Prenatal Cardiology Society

this anomaly.The other, most common group of congenital defects causing polyhydramnion are gastrointestinal tract anomalies [5].Still gastrointestinal diseases may influence fetal cardiovascular system, for example by increased pressure in abdominal cavity on inferior vena cava, that could also be assessed by fetal echocardiography.Polyhydramnion may be present in addition to cardiac problems (for instance at the imminent cardiovascular insufficiency), so fetal heart evaluation is essential for proper interpretation.Oligohydramnios could have also been caused by fetal defects.The most common are urinary tract defects.As presented by many studies LUTO influence fetal cardiovascular system and in many cases the prognosis depends on cardiovascular efficiency [6].What is more preterm prelabor rupture of membranes (pPROM) changes fetal environment enormously and many fetal cardiovascular disturbances have been described [7].Concerning fetal growth restriction (FGR), those fetuses presents many cardiovascular abnormalities like: abnormal GSI, myocardial hypertrophy, abnormal mitral and tricuspid flow, etc. [8].Fetal echocardiography could be used to establish fetal risk, answer whether pregnancy could be continued and help to predict prognosis.