Sonographic estimation of umbilical coiling index and correlation with doppler flow characteristics

Degani, S.; Lewinsky, Reuven M.; Berger, Howard; Spiegel, D.

doi:10.1016/0029-7844(95)00307-d

Cited by 103 publications

(116 citation statements)

References 9 publications

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“…The mean aUCI in the present study was comparable to those of the several similar studies in the past: Otsubo et al [2], 0.39 ± 0.03 coils/cm; Degani et al [3], 0.42 ± 0.12 coils/cm; Predanic and Perni [4], 0.403 ± 2SD coils/cm; Perni [5], 0.4 ± 0.1 coils/cm; and de Laat et al [6], 0.3 ± 0.09 coils/cm. Rana and Ebert [7] concluded that hypercoiling is associated with an increased incidence of premature delivery.…”

Section: Discussionsupporting

confidence: 91%

“…Degani et al [3] concluded that the best single predictor of a small for gestational age infant was the coiling index with sensitivity of 79 %, specificity of 86.5 %, positive predictive value of 72 % and a negative predictive value of 905. Another observation in this study was that both hypercoiling and hypocoiling were significantly associated with low Apgar score as compared with normocoiling.…”

Section: Discussionmentioning

confidence: 99%

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Association of Umbilical Coiling Index by Colour Doppler Ultrasonography at 18–22 Weeks of Gestation and Perinatal Outcome

Sharma

Bhardwaj

Gupta

et al. 2012

J Obstet Gynecol India

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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. The results were statistically analysed by v 2 -test. Results The mean aUCI was 0.41. Undercoiling was associated with spontaneous preterm delivery (47.87 %), low Apgar score (52.13 %), LBW (52.59 %), FGR (21.28 %) and NICU admission (76.34 %). Overcoiling was associated with preterm deliveries (65.38 %), increased caesarean sections (61.54 %), meconium staining of liquor (67.31 %), low Apgar score (63.46 %) and NICU admission (72.55 %). There was a positive strong correlation between aUCI and birth weight (r = ?0.426) Conclusions Abnormal coiling is strongly correlated with low birth weight.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Association of Umbilical Coiling Index by Colour Doppler Ultrasonography at 18–22 Weeks of Gestation and Perinatal Outcome

Sharma

Bhardwaj

Gupta

et al. 2012

J Obstet Gynecol India

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“…7 This report indicated that possible reduction of umbilical cord supportive tissue, together in combination with fetal movements in the SGA fetuses, could cause increased cord coiling with advancing gestation. 7,8 In consideration of the possible reduced umbilical cord supportive tissue (thinner cords) involvement in the etiology of umbilical cord coiling, we hypothesized that aUCI should have a significant relationship with the umbilical cord thickness. Therefore, altered umbilical cord thickness may predispose the fetus to the umbilical coiling pattern 7 and possibly may hinder full fetal intrauterine growth potential.…”

mentioning

confidence: 99%

Absence of a Relationship Between Umbilical Cord Thickness and Coiling Patterns

Predanić

Perni

2005

Journal of Ultrasound in Medicine

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Objective. The purpose of this study was to evaluate a relationship between the umbilical cord thickness and cord coiling patterns during the fetal sonographic anatomic survey in the second trimester of pregnancy. Methods. This was a prospective study of 470 patients with singleton pregnancies who had a fetal anatomic survey with recorded umbilical coiling patterns between 18 and 23 weeks' gestation. The umbilical cord thickness was assessed as an umbilical diameter at the level of the fetal abdominal cord insertion and compared with the antenatal umbilical coiling index (aUCI), calculated as a reciprocal value of the distance between a pair of umbilical cord coils. Results. Three hundred twenty-one patients had adequate sonographic umbilical cord images and maternal demographic, antenatal, and labor data to meet inclusion criteria. The mean aUCI was 0.41 with 10th and 90th percentiles of 0.21 and 0.60, respectively. A total of 10.6% (34/321) and 9.3% (30/321) of patients were categorized as having hypocoiled and hypercoiled umbilical cords, respectively. The mean cord diameter ± SD was 9.48 ± 0.97 mm (range 7.0-12.5 mm). There was no statistically significant correlation between aUCI and umbilical cord thickness (P = .1164). Conclusions. An aUCI, or umbilical coiling pattern, does not correlate with umbilical cord thickness. It appears that a lesser amount of the umbilical supportive tissue, mainly Wharton jelly, is not related to an increased umbilical cord coiling pattern.

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“…Umbilical cord-other (n = 21) and placental abruption (n = 10) were the most common of the 48 second ReCoDes for FGR. To assess umbilical coiling, the umbilical coiling index (UCI) can be measured by ultrasound (Degani et al, 1995), but the sensitivity of the UCI for detection of hypercoiled cord at birth is only 17.3-25.4% (Quin et al, 2002;Predanic et al, 2005) and this method requires further development before it can be reliably used clinically to assess hypercoiled cord in utero.…”

Section: Discussionmentioning

confidence: 99%

A Survey of Late Fetal Deaths in a Japanese Prefecture

Higuchi¹,

Minami²

2012

Perinatal Mortality

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Sonographic estimation of umbilical coiling index and correlation with doppler flow characteristics

Abstract: An intrauterine umbilical coiling index can be determined by ultrasound and correlates well with the actual index at birth. The sonographic umbilical coiling index is related to Doppler flow characteristics in the umbilical vein.

Cited by 103 publications

References 9 publications

Association of Umbilical Coiling Index by Colour Doppler Ultrasonography at 18–22 Weeks of Gestation and Perinatal Outcome

Association of Umbilical Coiling Index by Colour Doppler Ultrasonography at 18–22 Weeks of Gestation and Perinatal Outcome

Absence of a Relationship Between Umbilical Cord Thickness and Coiling Patterns

A Survey of Late Fetal Deaths in a Japanese Prefecture

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