[Cerclage and tocolysis in twin pregnancies]

Area of Science:

• Maternal-Fetal Medicine
• Perinatology
• Obstetrics

Background:

• Twin pregnancies are at higher risk for preterm birth and associated complications.
• Cervical insufficiency is a contributing factor to preterm birth.
• The efficacy of cerclage in twin gestations requires further investigation.

Purpose of the Study:

• To evaluate the impact of cervical cerclage and tocolysis on pregnancy outcomes in twin gestations.
• To compare perinatal outcomes between twin pregnancies managed with cerclage and those without.

Main Methods:

• A retrospective study comparing 29 twin pregnancies managed with cerclage and tocolysis to 28 twin pregnancies without cerclage.
• Data collected included birth weight, gestational age at delivery, and perinatal mortality.
• Cerclage was performed before 27 weeks gestation in the intervention group.

Main Results:

• The cerclage group had 0% perinatal mortality, while the non-cerclage group had one death.
• 91% of infants in the cerclage group weighed over 2000 gm, compared to 76% in the non-cerclage group.
• No infants in the cerclage group were born before 34 weeks gestation, versus five in the non-cerclage group.

Conclusions:

• Cervical cerclage combined with tocolysis appears beneficial in preventing very preterm births and reducing perinatal mortality in twin pregnancies.
• Potential increased risks associated with cerclage include higher rates of small for gestational age infants, ruptured membranes, and operative deliveries.
• The study's limitations include differences in the timing of twin pregnancy diagnosis between groups.