Cerebral hemodynamics and fetal behavioral states

Clerici, Graziano; Luzietti, R.; Cutuli, A.; Renzo, Gian Carlo Di

doi:10.1046/j.1469-0705.2002.00634.x

Cited by 21 publications

(23 citation statements)

References 14 publications

(17 reference statements)

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“…Measurements from the middle and distal thirds have significantly higher indices than those from the proximal third., 4 but the proximal third appears to be less variable during changes in fetal behavioral state. 5 The sensitivity of the CPR from our study is similar to those previously reported for predicting adverse perinatal outcomes in IUGR. 2 In conclusion, CPR should be used in prenatal monitoring of pregnancies with suspected SGA.…”

Section: Discussionsupporting

confidence: 77%

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Cerebroplacental Doppler Ratio in Evaluation of Small for Gestational Age and Prediction of Adverse Perinatal Outcome

D¹,

Deshmukh²

2015

jemds

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Small for gestational age fetuses often shows adverse perinatal outcome. In this study evaluated the clinically suspected cases of small for gestation age and adverse perinatal outcome by pusatility indices of umbilical, fetal middle cerebral artery and cerebroplacental doppler ratio. MATERIAL AND METHODSThe study population is of 80 pregnancies of 30-41 weeks' gestation had diagnosed clinically as small for date over a period of one year. The UA PI, MCA PI and cerebroplacental doppler ratio were calculated. RESULTSOf the 80 pregnancies in the study 28 showed abnormal UA PI. Among these 20(71.42%) were SGA and 18(64.28%) had adverse perinatal outcome. Of the 30 out of 80 pregnancies that showed abnormal MCA PI, 21(70%) were SGA. Abnormal cerebroplacental doppler ratio (<1.08) noted in19 out of 80 pregnancies, all 19(100%) were SGA and had adverse perinatal outcome. CONCLUSIONCerebroplacental doppler ratio is a better pedictor of SGA fetuses and adverse perinatal outcome than the MCA PI or UA PI used alone.

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Section: Discussionsupporting

confidence: 77%

“…The flow velocity waveforms were recorded from umbilical artery (UA) and fetal middle cerebral artery (MCA) at proximal third. 4,5 PI of UA and fetal MCA were recorded and ratio of MCA PI to UA PI (Cerebroplacental Doppler ratio) was calculated. The pregnancies were followed-up and the final perinatal outcome of each case was noted.…”

Section: Methodsmentioning

confidence: 99%

Cerebroplacental Doppler Ratio in Evaluation of Small for Gestational Age and Prediction of Adverse Perinatal Outcome

D¹,

Deshmukh²

2015

jemds

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“…When examining the middle cerebral artery, the sampling site has significant effects on the Doppler measurements when the PI is used. Measurements from the middle and distal thirds have significantly higher indices than those from the proximal third8 but the proximal third appears to be less variable during changes in fetal behavioral state13. The clinical relevance of Doppler ratios constructed from different sites has not been evaluated to date.…”

Section: Discussionmentioning

confidence: 99%

The cerebroplacental Doppler ratio revisited

Baschat

Gembruch

2003

Ultrasound in Obstet & Gyne

427

376

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“…The average of fetus heart pulse rate during the immovability was remarkably lower than the motion phase (p= 0.0047). However, there was no significant relation between PI of the proximal and distal parts of MCA in different behavior conditions of the fetus (22). Abel DE.…”

Section: Discussionmentioning

confidence: 85%

“…Additionally, there was a remarkable relation between umbilical artery PO2, PI of proximal and distal parts of MCA (positive), and occurrence of elective Cesarean section (negative) (24). Clerici, who has worked in this field, could not find a sharp relation between PI and pulse rate of the fetus (22). We believe that although the present study presents valuable information, there is need to perform similar studies in other races and geographical areas, as well as patients with a history of metabolic and or vascular diseases, in order to find a better concept regarding the vascular changes in fetus.…”

Section: Discussionmentioning

confidence: 99%

Color doppler indices of proximal and distal parts of middle cerebral artery in fetuses with intrauterine growth restriction

et al. 2017

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IntroductionIntrauterine growth restriction (IUGR) is a major clinical issue for pregnant women. The purpose of this study was to evaluate color Doppler indices of the proximal and distal parts of the middle cerebral artery (MCA) of the fetus.MethodsIn this cross-sectional study, 350 pregnant patients, with gestation age of 32–40 who were suspected to have intrauterine growth restriction, participated. The patients were referred for color Doppler sonography at the Imam Reza Hospital (Kermanshah, Iran) from May 2011 to September 2012. The following indices were measured for the proximal and distal part of the MCA: pulsatility index (PI), resistive index (RI), fetal heart rate (FHR), systolic to diastolic (S/D) ratio, and peak systolic velocity (PSV). The data were analyzed applying Tukey’s-test, Paired-Samples t-test, and simple linear regression analysis using SPSS 19.ResultsAverage age of the mother, the frequency of pregnancy, and fetus gestational age were 27.79±0.17 years, 2.09±1.3, and 34.19±2.52 weeks, respectively. For gestation age of <36weeks, all Doppler indices of the distal part of the fetus MCA were significantly different from those of proximal part (p<0.05). Comparing indices of gestation age <36 weeks with those of >36 weeks, significant difference was found between the Doppler indices of the proximal parts as well as for the distal parts (p<0.05).ConclusionMeasurement of fetus MCA indices may depend to the sampling location; however, this needs further investigation in order to find a clear probe location.

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Cerebral hemodynamics and fetal behavioral states

Cited by 21 publications

References 14 publications

Cerebroplacental Doppler Ratio in Evaluation of Small for Gestational Age and Prediction of Adverse Perinatal Outcome

Cerebroplacental Doppler Ratio in Evaluation of Small for Gestational Age and Prediction of Adverse Perinatal Outcome

The cerebroplacental Doppler ratio revisited

Color doppler indices of proximal and distal parts of middle cerebral artery in fetuses with intrauterine growth restriction

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