Establishing First Trimester Markers for the Identification of High Risk Twin
Establishing First Trimester Markers for the Identification of High Risk Twin
The purpose of this study is to determine whether we can establish different markers suc as
 mean arterial pressure , flow in the uterine arteries, biochemical markers in maternal blood
 and more un the first trimester, in order to screen for twin pregnancies that are more likely
 to develop adverse pregnancy outcome: early delivery, pre eclampsia or small fetuses.
Inclusion Criteria:

 -  pregnant women from 11 -14 weeks of gestation

 Exclusion Criteria:

 -  nuchal thickness above 3 mm,

 -  Chronic hypertension,

 -  thrombophilia,

 -  Diabetes