THE ROLE OF ULTRASOUND IN TWIN PREGNANCIES. MALFORMATIONS IN TWINS.

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Vesna Sokol Karadjole, Marina Ivanišević

Key words: twin pregnancy, ultrasound, pathology of twin pregnancy
SUMMARY. The number of twin pregnancy is constantly rising. One of the main reasons for that is delayed childbirth and
advanced maternal age at conception because of lifestyle changes. This results with widespread use of assisted reproduction techniques and consequently a greater number of multiple pregnancies. Twin pregnancies are associated with a high
risk of perinatal and neonatal morbidity and mortality. This particularly applies to monochorionic pregnancies. Ultrasound, as a diagnostic tool, is the most important method for regular monitoring of these pregnancies. Its importance is
in early detection of congenital anomalies, intrauterine death of one twin, discordant growth between twins, detection
and risk stratifi cation of women at high risk of preterm birth but also in a detection of severe pathology specifi c to monochorionic twins such as twin-to-twin transfusion syndrome (TTTS), twin anemia–polycythemia sequence (TAPS) and
twin reversed arterial perfusion sequence (TRAP). Every twin pregnancy complicated with pathology should be referred
to tertiary referral center for obstetrics and gynecology.