Cervical dilation after initial cervical cerclage in twin pregnancies: is repeat cerclage beneficial?

Affiliations

• ¹ Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China.
• ² Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai Institute of Maternal-Fetal Medicine and Gynecologic Oncology, School of Medicine, Tongji University, Shanghai, China.
• ³ Department of Clinical Research Center, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China.
• ⁴ Department of Obstetrics, Shanghai First Maternity and Infant Hospital, School of Medicine Tongji University, Shanghai, China; Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai Institute of Maternal-Fetal Medicine and Gynecologic Oncology, School of Medicine, Tongji University, Shanghai, China.
• ⁵ Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai Institute of Maternal-Fetal Medicine and Gynecologic Oncology, School of Medicine, Tongji University, Shanghai 200092, China. Electronic address: stephenying_2011@163.com.