Comparison of Cervical Cerclage by Vaginal and by Laparoscopic Transabdominal Routes in the Periconceptional Period

"For each participant, information will be collected on:~* Gestational age at the time the cerclage was performed~* Parity~* Age~* BMI~* Ethnicity~* Number of preterm deliveries~* Gestational age of previous preterm deliveries~* Previous uterine and/or cervix surgery (previous cerclage, conization, metroplasty, or other)~* Type of cerclage performed~* Operative times~* Days of hospitalization~* Surgical complications~* Gestational age at the time of delivery~* Mode of delivery (spontaneous, operative or cesarean)~* Infant's weight at birth~* Apgar at 1' and 5' minute~* Ph newborn~* Possible admission to neonatal intensive care unit."