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KMID : 0358419970400030614
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Korean Journal of Obstetrics and Gynecology
1997 Volume.40 No. 3 p.614 ~ p.618
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The Relationship Between Umbilical Coiling Index and Umbilical Artery Doppler Velocimetry
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원혜성
강은희/김연표/이필량/이인식/김암/목정은
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Abstract
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The purpose of this study was to evaluate the relationship between umbilical coiling index and Doppler velocimetry in umbilical artery.
The umbilical coiling index was calculated by dividing the total number of helices by the entire cord length(in centimeter) postnatally between December 1995 and March 1996. Doppler flow velocities were obtained from the umbilical artery before
delivery(within 3 days).
The mean umbilical coiling index was 0.17±0.09(n=186). The subjects with umbilical coiling indices below the tenth percentile(0.08), above the 90th percentile(0.3), and between the tenth and 90th percentile were defined as hypocoiled,
hypercoiled,
and
normocoiled. The subjects with hypocoiled and hypercoiled cords did not differ from those with normocoiled cords in perinatal outcomes. The correlations between umbilical coiling index and umbilical artery systolic-diastolic ratio were not
significant(r=0.015, p<0.05). The subjects with umbilical artery systolic-diastolic ratio above 90th percentile(3.0) differed from those with below 90th percentile in several ways : fetal heart rate disturbances, birth weight, intrauterine growth
retardation and admission to intensive care unit were higher in high S-D ratio group.
This study suggest that the umbilical coiling level dose not interfere umbilical aretery flow.
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KEYWORD
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