[TWIN-TO-TWIN TRANSFUSION SYNDROME: THE POSSIBILITY OF LATENT FLOW (CASE REPORT)].

The early diagnosis of the Twin-To-Twin transfusion syndrome (TTTS) carries benefits of the better survivor for the fetus-donor; but at the same time there are obvious practical impediments to diagnose the condition earlier in the course of a pregnancy. That's why this particular problem in practical medicine requires in depth investigation to clarify casual factors, and specify tactical approach to the prospective patients which in turn will lead to prevention of the fetal death and damage and improvement of fetal survivor in any form of TTTS. The TTTS is one of the complications of a monochorionic pregnancy leading to fetal distress and certain developmental abnormalities as well as worse prognosis for the survival for the affected twin. Previous scientific researches established two major forms of TTTS: chronic - which develops over period of time during the course of the pregnancy and acute - which can develop during the labor itself. This scientific article represents description and analysis of the clinical case of the monozygotic (identical) twin pregnancy characterized by antenatal asphyxia of one of the fetuses at the full-term with unclear clinical etiology but with all morphological characteristics specific for TTTS for monochorionic diamniotic pregnancy. Analyzing the data from this clinical case we have decided that there are latent forms of TTTS which can manifest in the third trimester of the pregnancy.