The lecture discusses the usefulness of cervical length and biochemical and biophysical tests for screening for preterm delivery, the use of vaginal progesterone to prevent preterm delivery and the efficacy of cervical cerclage and pessary in twin pregnancies.

This lecture was delivered by Dr Roberto Romero (USA) at ISUOG's intensive course "Multiple Pregnancy", in February 2019.

Dr Roberto Romero (USA) ISUOG Fellowship, 2000