title: The umbilical coiling index and adverse perinatal outcome.
abstract: OBJECTIVE
  Evaluation of the relationship between umbilical coiling index (UCI) and adverse perinatal outcome.
  
  
  METHODS
  A prospective study was performed on 699 pregnant women who were 37-40 weeks. UCI was determined by dividing the total number of the complete vascular coiling by the total umbilical cord length in centimeters. Then the relationship between UCI and neonatal weight, amniotic fluid index, meconium, Apgar score, and fetal distress were evaluated.
  
  
  RESULTS
  There was a significant difference between normo- and hypocoiled groups according to the Apgar score less than 7 in minute 5, AFI<or=5; and between normo- and hypercoiled groups according to Apgar score less than 7 in minute 5, AFI<or=5, meconium, and fetal distress. Neonatal weight in normocoiled was higher than hypercoiled group. AFI<or=5, meconium and fetal distress were higher in hypercoiled than hypocoiled group. Neonatal weight in hypercoiled was less than that in the hypocoiled group, respectively.
  
  
  CONCLUSIONS
  Abnormal UCI may relate to adverse perinatal outcome.
authors.affiliation: Iran University of Medical Sciences, Department of Obstetrics and Gynecology, Akbarabadi Teaching Hospital, Tehran, Iran. maryamkashanian@yahoo.com <maryamkashanian@yahoo.com>
authors.forename: M
authors.initials: M
authors.lastname: Kashanian
authors.forename: A
authors.initials: A
authors.lastname: Akbarian
authors.forename: J
authors.initials: J
authors.lastname: Kouhpayehzadeh
mesh_terms: D000293:Adolescent; D000328:Adult; D000653:Amniotic Fluid; D001724:Birth Weight; D003430:Cross-Sectional Studies; D016640:Diabetes, Gestational; D005260:Female; D005316:Fetal Distress / Q000453:epidemiology*; D006801:Humans; D007231:Infant, Newborn; D008470:Meconium; D015999:Multivariate Analysis; D007744:Obstetric Labor Complications / Q000453:epidemiology; D011247:Pregnancy; D011256:Pregnancy Outcome; D011254:Pregnancy in Diabetics; D011446:Prospective Studies; D012044:Regression Analysis; D012307:Risk Factors; D014470:Umbilical Cord / Q000503:physiopathology*