J. Goldkrand, C. Pettigrew, S. U. Lentz, S. Clements, J. Bryant, J. Hodges
{"title":"容量脐动脉血流:正常与单脐动脉脐带的比较。","authors":"J. Goldkrand, C. Pettigrew, S. U. Lentz, S. Clements, J. Bryant, J. Hodges","doi":"10.1080/714052729","DOIUrl":null,"url":null,"abstract":"Objective : This was a study of the volumetric blood flow in single umbilical artery (SUA) cords as compared to three-vessel cords. Hypothesis: SUA flow will be twice that of an artery in a normal cord. Methods : We studied 276 patients (24 SUA, 252 normal cord) at 18-40 weeks' gestation utilizing gray-scale and color Doppler. Flow, flow/kg, velocity, artery diameter, Doppler velocimetry indices, estimated fetal weight (EFW) and amniotic fluid index (AFI) were compared. All fetuses were anatomically and cytogenetically normal. Results : Blood flow increased with advancing gestation and the SUA volume was twice that in the normal cord artery. Flow/kg decreased for both cords, with the SUA values twice those of normal cords. Arterial diameter and velocity increased, but to a greater degree in SUA. Velocimetry, although in the normal range, decreased progressively with the resistance indices always lower in the SUA cord. EFW and AFI were the same for both groups. Conclusion : Volumetric blood and its compone...","PeriodicalId":79464,"journal":{"name":"The Journal of maternal-fetal medicine","volume":"41 1","pages":"116-121"},"PeriodicalIF":0.0000,"publicationDate":"2001-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"10","resultStr":"{\"title\":\"Volumetric umbilical artery blood flow: comparison of the normal versus the single umbilical artery cord.\",\"authors\":\"J. Goldkrand, C. Pettigrew, S. U. Lentz, S. Clements, J. Bryant, J. Hodges\",\"doi\":\"10.1080/714052729\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Objective : This was a study of the volumetric blood flow in single umbilical artery (SUA) cords as compared to three-vessel cords. Hypothesis: SUA flow will be twice that of an artery in a normal cord. Methods : We studied 276 patients (24 SUA, 252 normal cord) at 18-40 weeks' gestation utilizing gray-scale and color Doppler. Flow, flow/kg, velocity, artery diameter, Doppler velocimetry indices, estimated fetal weight (EFW) and amniotic fluid index (AFI) were compared. All fetuses were anatomically and cytogenetically normal. Results : Blood flow increased with advancing gestation and the SUA volume was twice that in the normal cord artery. Flow/kg decreased for both cords, with the SUA values twice those of normal cords. Arterial diameter and velocity increased, but to a greater degree in SUA. Velocimetry, although in the normal range, decreased progressively with the resistance indices always lower in the SUA cord. EFW and AFI were the same for both groups. Conclusion : Volumetric blood and its compone...\",\"PeriodicalId\":79464,\"journal\":{\"name\":\"The Journal of maternal-fetal medicine\",\"volume\":\"41 1\",\"pages\":\"116-121\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2001-04-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"10\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The Journal of maternal-fetal medicine\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1080/714052729\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Journal of maternal-fetal medicine","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/714052729","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Volumetric umbilical artery blood flow: comparison of the normal versus the single umbilical artery cord.
Objective : This was a study of the volumetric blood flow in single umbilical artery (SUA) cords as compared to three-vessel cords. Hypothesis: SUA flow will be twice that of an artery in a normal cord. Methods : We studied 276 patients (24 SUA, 252 normal cord) at 18-40 weeks' gestation utilizing gray-scale and color Doppler. Flow, flow/kg, velocity, artery diameter, Doppler velocimetry indices, estimated fetal weight (EFW) and amniotic fluid index (AFI) were compared. All fetuses were anatomically and cytogenetically normal. Results : Blood flow increased with advancing gestation and the SUA volume was twice that in the normal cord artery. Flow/kg decreased for both cords, with the SUA values twice those of normal cords. Arterial diameter and velocity increased, but to a greater degree in SUA. Velocimetry, although in the normal range, decreased progressively with the resistance indices always lower in the SUA cord. EFW and AFI were the same for both groups. Conclusion : Volumetric blood and its compone...
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