OBSTETRICS: FETAL DIAGNOSIS AND THERAPYOutcomes of Pregnancies With Sonographically Detected Nuchal Cords Remote From DeliveryGonzález-Quintero, Victor Hugo; Tolaymat, Lama; Muller, Antoaneta Canache; Izquierdo, Luis; O’Sullivan, Mary J.; Martin, DibeAuthor Information Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of Miami School of Medicine, Miami, Florida Obstetrical & Gynecological Survey: July 2004 - Volume 59 - Issue 7 - p 499-500 Buy Abstract Numerous reports have associated a nuchal cord with an elevated risk of adverse pregnancy outcomes. Most of these focused on cases in which a nuchal cord was detected before delivery. This retrospective study included 118 consecutive women found by sonography to have a nuchal cord in the second or third trimester of pregnancy (17–36 weeks gestation). The 115 control women were matched with the study group for gestational age at the time of sonography. Both sagittal and transverse images were acquired. The findings on 2-dimensional ultrasonography were confirmed by a color Doppler flow study. The study and control groups were similar with respect to maternal age, race, ethnicity, gestational age at the time of sonography, and birth weight. Just over half of nuchal cord cases (51%) were diagnosed in the second trimester. The condition was significantly associated with delivery before 37 weeks gestation. The risk was 21% in study women and 11% in the control group. The prevalence of a nuchal cord at delivery was 37% in women diagnosed sonographically and 15% in the control group. There were no significant group differences in method of delivery, indications for cesarean delivery, or meconium-stained amniotic fluid. Fetal heart rate abnormalities, 5-minute Apgar scores, and admission to neonatal intensive care also were comparable in the 2 groups. There was 1 intrauterine fetal death in each group. Finding a nuchal cord by sonography in the second or third trimester of pregnancy is associated with preterm delivery but not with serious perinatal complications. © 2004 Lippincott Williams & Wilkins, Inc.