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https://www.readbyqxmd.com/read/28584688/antenatal-umbilical-coiling-index-and-newborn-outcomes-cohort-study
#1
Josephine Mwikali Ndolo, Sudhir Vinayak, Micah Ominde Silaba, William Stones
OBJECTIVES: We aimed to test the predictive value of antenatal umbilical coiling index (aUCI) among a prospectively recruited cohort of antenatal women. METHODS: Women with singleton pregnancies were recruited at their second-trimester scan. Images of the umbilical cord were used to calculate the aUCI. Pregnancy and birth outcomes were recorded and statistical associations between aUCI and small for gestational age (SGA) using international standard birth weight centiles and preterm birth were investigated (n = 430)...
2017: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/25765522/ultrasound-assessment-of-umbilical-cord-morphology-in-the-first-trimester-a-feasibility-study
#2
Rajit Narayan, Rahmah Saaid, Lars Pedersen, Jon Hyett
OBJECTIVE: The aim of this study was to determine whether morphology and measurement of the umbilical cord could be accurately assessed at the time of the 11- to 13(+6)-week scan. METHODS: We conducted a prospective study of 100 consecutive women with singleton pregnancies at 11-13(+6) weeks' gestation who were seen for routine aneuploidy screening. Transabdominal ultrasound scans were performed, and the distance between two adjacent coils of the umbilical artery was measured in a free loop of umbilical cord...
2015: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/25209352/antenatal-umbilical-coiling-index-as-a-predictor-of-perinatal-outcome
#3
Ankita Mittal, Smiti Nanda, Jyotsna Sen
PURPOSE: To evaluate the relationship between sonographic measurements of umbilical cord coiling index during late second trimester of pregnancy and perinatal outcome. METHODS: This prospective study was conducted on two hundred pregnant women with uncomplicated, singleton pregnancy between 20 to 24 weeks of gestation. The antenatal umbilical coiling index (UCI) was calculated by doing a transabdominal ultrasound at the time of induction into the study as the reciprocal of the pitch of one complete vascular coil...
April 2015: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/24293842/association-of-umbilical-coiling-index-by-colour-doppler-ultrasonography-at-18-22-weeks-of-gestation-and-perinatal-outcome
#4
Bindu Sharma, Neelam Bhardwaj, Shashi Gupta, Pradeep Kumar Gupta, Asha Verma, Kusumlata Malviya
OBJECTIVE: To study the association between antenatal umbilical coiling index (aUCI) and perinatal outcome. METHODS: 600 primigravidas with uncomplicated singleton pregnancies had an ultrasonography between 18 and 22 weeks of gestation for aUCI by colour Doppler. The aUCI was calculated as the reciprocal of the distance between a pair of coils. It was then correlated with the following pregnancy outcomes: birth weight, mode of delivery, meconium staining of liquor, Apgar scores and gestational age...
December 2012: Journal of Obstetrics and Gynaecology of India
https://www.readbyqxmd.com/read/23436607/evaluation-of-antenatal-umbilical-coiling-index-at-16-21%C3%A2-weeks-of-gestation-as-a-predictor-of-trisomy-21-and-other-chromosomal-defects
#5
C P M Verkleij, A C C van Oppen, E J H Mulder, M W M de Laat, E Sikkel, M P H Koster, I van der Tweel, A Franx, G H A Visser
OBJECTIVES: To determine whether there is an association between sonographically assessed hyper- or hypocoiling of the umbilical cord and the presence of trisomy 21, to provide reference values for the antenatal umbilical coiling index (aUCI) at a gestational age of 16-21 weeks and to determine whether these measurements are reliable and reproducible. METHODS: This was a prospective study of 737 pregnancies in which the aUCI was measured between 16 and 21 weeks of gestation by ultrasound at the time of amniocentesis...
November 2013: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/20832856/cord-coiling-umbilical-cord-insertion-and-placental-shape-in-an-unselected-cohort-delivering-at-term-relationship-with-common-obstetric-outcomes
#6
S Pathak, E Hook, G Hackett, E Murdoch, N J Sebire, F Jessop, C Lees
BACKGROUND: The position of the placental cord insertion, its shape and cord coiling are thought to be associated with perinatal outcome. This study derives indices describing the relationship of cord insertion to the placental centre, the shape of the placenta and cord coiling in placentas from unselected term pregnancies. Further, we investigate these indices in pregnancies affected by pre-eclampsia (PET), pregnancy induced hypertension (PIH), gestational diabetes mellitus (GDM) and delivery of a small for gestational age (SGA) baby...
November 2010: Placenta
https://www.readbyqxmd.com/read/17638422/hypercoiling-of-the-umbilical-cord-and-placental-maturation-defect-associated-pathology
#7
Monique W M de Laat, Jacqueline J C van der Meij, Gerard H A Visser, Arie Franx, Peter G J Nikkels
Our objective was to determine whether there is an association between hypercoiling of the umbilical cord and placental maturation defect. From a database comprising 1147 cases, containing data on all placentas examined at our institution during the study period, we selected all cases with a gestational age of at least 37 weeks that exhibited hypercoiling of the umbilical cord (coiling density above the 90th percentile, n = 42); we also examined 2 matched controls for each case, one with hypocoiling and one with normocoiling...
July 2007: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/17276632/the-roach-muscle-bundle-and-umbilical-cord-coiling
#8
Monique W M de Laat, Peter G J Nikkels, Arie Franx, Gerard H A Visser
OBJECTIVE: To determine if presence of the Roach muscle, a small muscle bundle lying just beside the umbilical artery, contributes to umbilical cord coiling. METHODS: 251 umbilical cords were examined. The umbilical coiling index (UCI) was calculated as the number of coils divided by the cord length in cm. Cords were classified as hypocoiled (UCI<p10), normocoiled (UCI p10-p90) or hypercoiled (UCI>p90). On microscopic examination of a cross section of the cord, absence or presence of a Roach muscle was determined...
September 2007: Early Human Development
https://www.readbyqxmd.com/read/16952204/prenatal-ultrasonographic-prediction-of-the-umbilical-coiling-index-at-birth-and-adverse-pregnancy-outcome
#9
M W M De Laat, A Franx, P G J Nikkels, G H A Visser
OBJECTIVES: To evaluate whether the antenatal umbilical coiling index (aUCI) as measured by ultrasonography predicts the postnatal umbilical coiling index (pUCI) and adverse pregnancy outcome. METHODS: In a prospective study in 117 pregnancies, the aUCI was measured between 28 weeks and term by ultrasonography. The aUCI was calculated as the reciprocal value of the mean pitch of one complete coil. The pUCI was calculated as the number of coils divided by the cord length in cm...
October 2006: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/16648410/umbilical-coiling-index-in-normal-and-complicated-pregnancies
#10
Monique W M de Laat, Arie Franx, Michiel L Bots, Gerard H A Visser, Peter G J Nikkels
OBJECTIVE: To estimate the relation between undercoiling and overcoiling of the umbilical cord and adverse pregnancy outcome. METHODS: Umbilical cords and hospital records of 885 patients were studied in a cross-sectional study design. The umbilical coiling index was determined as the number of complete coils divided by the length of the cord in centimeters, blinded for pregnancy outcome. Obstetric history and pregnancy outcome of each patient were obtained from hospital records, blinded for the umbilical coiling index...
May 2006: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/16570264/antenatal-umbilical-coiling-index-and-doppler-flow-characteristics
#11
M Predanic, S C Perni, F A Chervenak
OBJECTIVE: To evaluate whether a relationship exists between the antenatal umbilical coiling index (UCI) and umbilical cord Doppler flow characteristics. METHODS: During the fetal anatomical survey in 200 consecutive pregnant patients at 18-23 weeks' gestation, we recorded umbilical coiling patterns and blood flow characteristics. The antenatal UCI, calculated as a reciprocal value of the distance between a pair of umbilical cord coils, was compared with Doppler parameters including umbilical vein blood flow volume (in mL/min/kg), and mean resistance index (RI) and peak systolic velocity (PSV in cm/s) averaged from both umbilical arteries...
October 2006: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/16513244/the-umbilical-coiling-index-in-complicated-pregnancy
#12
Monique W M de Laat, Elise D van Alderen, Arie Franx, Gerard H A Visser, Michiel L Bots, Peter G J Nikkels
OBJECTIVE: To evaluate umbilical cord coiling in pregnancies with adverse outcome. STUDY DESIGN: Umbilical cords and hospital records of 565 consecutive cases with an indication for histological examination of the placenta were studied. The umbilical coiling index (UCI) was determined as the number of complete coils divided by the length of the cord in centimeters, by an observer blinded for pregnancy outcome. Data on obstetric history and pregnancy outcome of each case were obtained from the hospital records...
January 2007: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/16098860/ultrasound-evaluation-of-abnormal-umbilical-cord-coiling-in-second-trimester-of-gestation-in-association-with-adverse-pregnancy-outcome
#13
Mladen Predanic, Sriram C Perni, Stephen T Chasen, Rebecca N Baergen, Frank A Chervenak
OBJECTIVE: The purpose of this study was to evaluate the antenatal umbilical cord coiling index obtained during the fetal anatomic survey in the second trimester as a predictor of adverse pregnancy outcome. STUDY DESIGN: Four hundred twenty-five consecutive women who had a fetal anatomic survey between 18 to 23 weeks of gestation were evaluated for umbilical cord coiling. The antenatal umbilical cord coiling index was calculated as a reciprocal value of the distance between a pair of coils (antenatal umbilical cord coiling index = 1/distance in cm) and was correlated with the following adverse pregnancy outcomes: (1) small for gestational age, (2) mode of delivery, (3) presence of meconium-stained amniotic fluid, (4) presence of nonreassuring fetal status in labor, and (5) Apgar scores at 1 and 5 minutes...
August 2005: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/12375686/the-umbilical-coiling-index-in-normal-pregnancy
#14
C C van Diik, A Franx, M W M de Laat, H W Bruinse, G H A Visser, P G J Nikkels
OBJECTIVE: To provide reference values for the umbilical coiling index in uncomplicated pregnancy. METHODS: Umbilical cords were collected from livebom singleton infants born after uncomplicated pregnancies. The umbilical coiling index (UCI) was calculated as the number of coils divided by the cord length in centimeters. The mean value (SD) for the UCI was calculated, and possible correlations of the UCI with maternal age, parity, gestational age at delivery, mode of delivery, sex and birth weight of the infant were examined...
April 2002: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/11758023/early-second-trimester-low-umbilical-coiling-index-predicts-small-for-gestational-age-fetuses
#15
S Degani, Z Leibovich, I Shapiro, R Gonen, G Ohel
OBJECTIVE: To evaluate the role of the early second-trimester Doppler velocimetric studies of the umbilical coiling index and umbilical cord cross-sectional area as tests for the prediction of small-for-gestational age infants. METHODS: Doppler blood flow studies in 147 singleton pregnancies at risk for delivery of a small-for-gestational-age neonate were performed at 15 +/- 1 (SD) weeks' gestation from the uterine artery, umbilical artery, middle cerebral artery, inferior vena cava, and ductus venosus...
November 2001: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/9745099/differences-between-twin-umbilical-coiling-indices-correlate-to-differences-in-twin-weight-and-doppler-indices
#16
Degani, Lewinsky, Aharoni, Gonen, Ohel
> Objective: The aim of our study was to evaluate sonographic and Doppler detectable differences in umbilical coiling index and fetoplacental circulation of discordant twins. Study Design: Doppler blood flow studies in 13 pairs of concordant and 20 pairs of discordant twins were performed from umbilical artery, middle cerebral artery, inferior vena cava, and ductus venosus. Flow studies were compared and correlated with the antenatal sonographic coiling index and the actual umbilical cord length, number of vascular helices, and birth weight...
September 1998: Journal of Maternal-fetal Investigation
https://www.readbyqxmd.com/read/8794602/umbilical-coiling-index-is-it-a-marker-for-the-foetus-at-risk
#17
COMPARATIVE STUDY
T Ercal, S Lacin, S Altunyurt, U Saygili, O Cinar, A Mumcu
The aim of this study was to determine the relationship between the number of coils in the umbilical cord and perinatal outcome. The umbilical cords and delivery records of 147 liveborn neonates were prospectively studied. The umbilical coiling index (UCI) of each cord was calculated by dividing the total number of complete umbilical vascular coils by the umbilical cord length. Subjects with UCIs below the 10th percentile, above the 90th percentile, and between the 10th and 90th percentiles were defined as hypocoiled, hypercoiled, and normocoiled, respectively...
July 1996: British Journal of Clinical Practice
https://www.readbyqxmd.com/read/7898836/adverse-perinatal-outcome-in-patients-with-an-abnormal-umbilical-coiling-index
#18
COMPARATIVE STUDY
J Rana, G A Ebert, K A Kappy
OBJECTIVE: To evaluate perinatal outcome in neonates with hypocoiled and hypercoiled cords. METHODS: From February 18 through June 13, 1994, 635 placentas from deliveries of at least 24 weeks' gestation were examined for umbilical coiling. The umbilical coiling index was calculated by dividing the total number of coils by the length of the cord. Subjects with umbilical coiling indices below the tenth percentile, above the 90th percentile, and between the tenth and 90th percentiles were defined as hypocoiled, hypercoiled, and normocoiled, respectively...
April 1995: Obstetrics and Gynecology
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