Routine Transvaginal Screening Ultrasound

Both the American College of Obstetricians and Gynecologists and the and Society for Maternal-Fetal Medicine are now recommending routine transvaginal cervical length screening for women with both high- and low-risk pregnancies.

Because interventions that reduce the risk of spontaneous preterm birth, such as vaginal progesterone and exam-indicated cerclage, have proven effective in selected patients with short cervical length, San Diego Perinatal Center is now routinely offering this additional screening to all patients who are scanned between 16 and 30 weeks gestation. Although not mandatory, we believe this is an important addition to the high-quality screening ultrasounds we already provide. Transvaginal scans are also important tools for identifying abnormal placentation (placenta accreta or vasa previa), in turn supporting appropriately timed and managed deliveries and improved maternal and fetal outcomes

Please feel free to contact Dr. Tevy Tith at or Dr. Holly Casele at with any questions or concerns you may have about this new program.

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