scholarly journals Use of conditional centiles of middle cerebral artery pulsatility index and cerebroplacental ratio in the prediction of adverse perinatal outcomes

2016 ◽  
Vol 95 (6) ◽  
pp. 690-696 ◽  
Author(s):  
Henriette O. Karlsen ◽  
Cathrine Ebbing ◽  
Svein Rasmussen ◽  
Torvid Kiserud ◽  
Synnøve L. Johnsen
Keyword(s):  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Pulsatility Index ◽  
Perinatal Outcomes ◽  
Cerebroplacental Ratio ◽  
Adverse Perinatal Outcomes

The effect of maternal position on fetal middle cerebral artery Doppler indices and its association with adverse perinatal outcomes: a pilot study

2020 ◽  
Vol 48 (4) ◽  
pp. 317-321
Author(s):  
Rodney McLaren ◽  
Bharati Kalgi ◽  
Chima Ndubizu ◽  
Peter Homel ◽  
Shoshana Haberman ◽  
...  
Keyword(s):  
High Risk ◽  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Repeated Measures ◽  
Adverse Outcome ◽  
Perinatal Outcomes ◽  
Low Risk ◽  
Doppler Velocity ◽  
Chronic Hypertension ◽  
Adverse Perinatal Outcomes

AbstractObjectiveThe aim of this study was to compare position-related changes in fetal middle cerebral artery (MCA) Doppler pulsatility indices (PI).MethodsA prospective study of 41 women with conditions associated with placental-pathology (chronic hypertension, pregestational diabetes, and abnormal analytes) and 34 women without those conditions was carried out. Fetal MCA Doppler velocity flow waveforms were obtained in maternal supine and left lateral decubitus positions. MCA PI Δ was calculated by subtracting the PI in the supine position from the PI in the left lateral position. Secondary outcomes included a composite of adverse perinatal outcomes (fetal growth restriction, oligohydramnios, and preeclampsia). χ2 and Student t-tests and repeated-measures analysis of variance were used.ResultsMCA PI Δ was significantly less for high-risk pregnant women ([P = 0.03]: high risk, left lateral PI, 1.90 ± 0.45 vs. supine PI, 1.88 ± 0.46 [Δ = 0.02]; low risk, left lateral PI, 1.90 ± 0.525 vs. supine PI, 1.68 ± 0.40 [Δ = 0.22]). MCA PI Δ was not significantly different between women who had a composite adverse outcome and women who did not have a composite adverse outcome (P = 0.843).ConclusionOur preliminary study highlights differences in position-related changes in fetal MCA PI between high-risk and low-risk pregnancies. These differences could reflect an attenuated ability of women with certain risk factors to respond to physiologic stress.

scholarly journals Reference ranges for umbilical and middle cerebral artery pulsatility index and cerebroplacental ratio in prolonged pregnancies

2004 ◽  
Vol 24 (6) ◽  
pp. 647-653 ◽  
Author(s):  
M. Palacio ◽  
F. Figueras ◽  
L. Zamora ◽  
J. M. Jiménez ◽  
B. Puerto ◽  
...  
Keyword(s):  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Pulsatility Index ◽  
Reference Ranges ◽  
Cerebroplacental Ratio

scholarly journals Comparative performance of Cerebral Perfusion Ratio as compared to MCA PI and UA PI in prediction of adverse perinatal outcomes in intra uterine growth restricted fetuses

2019 ◽  
Vol 7 (8) ◽  
pp. 2887
Author(s):  
Jyotsna S. Shinde ◽  
Madan P. Manmohan ◽  
Sanjay S. Pasoria ◽  
Thahir V. Ummer
Keyword(s):  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Cerebral Perfusion ◽  
Umbilical Artery ◽  
Perinatal Outcomes ◽  
Clinical History ◽  
Comparative Performance ◽  
Uterine Growth ◽  
Adverse Perinatal Outcomes ◽  
Doppler Indices

Background: Intra uterine growth restriction (IUGR) is a common clinical sign seen due to chronic foetal hypoxemia and is considered a major contributor of perinatal morbidity and mortality. The aim of the present study was to determine and compare the sensitivity and specificity of umbilical artery pulsatility index (UA PI), middle cerebral artery (MCA) PI and cerebral perfusion ratio (CPR) in predicting adverse and poor perinatal outcomes in fetuses with IUGR.Methods: The study included 100 pregnant women with post 24 weeks of gestation with clinical history of IUGR.  Doppler examination parameters, including waveforms and measurements, of the umbilical artery, middle cerebral artery were recorded. The Cerebral Perfusion Ratio (CPR) was calculated from MCA PI and UA PI and a final comparison of accuracy of Doppler indices was done with perinatal outcome.Results: The sensitivity of the UA PI was higher (49.3%) than that of the MCA PI (43.6%) and the CPR (37.7%). The specificity of the CPR was higher (87.1%) than that of the MCA PI (83.9%) and the UA PI (74.2%).Conclusions: From the findings of the study, it can be concluded that UA PI is the most sensitive and CPR is the most specific parameter in predicting adverse perinatal outcomes in IUGR fetuses. Thus, in addition to pulsatility indices, CPR should be used as a tool for surveillance and included in the routine reporting formats of obstetric Doppler studies.

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