Establishing First Trimester Markers for the Identification of High Risk Twin

Establishing First Trimester Sonographic, Biochemical and Clinical Markers for the Identification of High Risk Twin in the First Trimester

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