scholarly journals Relation between Fetal Renal Artery Doppler ‎Indices and Non-PROM Oligohydramnios in ‎Third Trimester of Pregnancy

2021 ◽  
pp. 1-8
Author(s):  
Asmaa Ibrahim Laag ◽  
Nareman Mahmoud Elhamamy ◽  
Amr‏ ‏Mohamed Tawfek Elbadry ◽  
Atef Hammad Teama
Keyword(s):  
Amniotic Fluid ◽  
Renal Artery ◽  
Flow Velocity ◽  
Pulsatility Index ◽  
Resistance Index ◽  
Normal Amount ◽  
Amniotic Fluid Index ◽  
Group I ◽  
Significant Difference ◽  
Artery Flow

Background: Amniotic fluid is the liquid which surround the fetus after the first few weeks of gestation. Amniotic fluid is derived mostly from the fetus and has many functions that are essential for normal growth and development. The aim of this work is to study the relation between fetal renal artery flow velocity waveforms and amniotic fluid volume in normal pregnancies and those complicated by oligohydramnios. Methods: This prospective observational study was carried out on 40pregnant women (10) of them were with normal amount of amniotic fluid (group I), while (30) of them suffered from oligohydramnios (group II).By using color doppler ultrasound imaging, the fetal renal circulation can be assessed. Intermittent assessment of renal artery flow velocity waveforms during the early stages of pregnancy may help in predicting changes in amniotic fluid dynamics. Results: There was a non-significant difference between cases with normal amount of amniotic fluid and cases with oligohydramnios in Gestational age, Maternal age, fetal femur length, bi parietal diameter, abdominal circumference and Fetal weight. There were increased values of fetal renal artery Resistance index (RI) and Pulsatility index (PI) in cases of oligohydramnios than cases with normal amount of amniotic fluid. There was no correlation between Peak systolic velocity (PSV) and Amniotic fluid index (AFI). There was a significant difference in End diastolic velocity (EDV) between cases with normal amount of amniotic fluid and cases with oligohydramnios. Also, there was a significant difference in Systolic diastolic ratio (S/D) and Amniotic fluid index (AFI) between cases with normal amount of amniotic fluid and cases with oligohydramnios. Conclusions: There is a relation between renal artery flow velocity waveforms and oligohydramnios using Pulsed wave Doppler Ultrasonography. There are higher values of renal artery Resistance index and Pulsatility index in cases of oligohydramnios more than cases with normal amount of amniotic fluid.

scholarly journals Doppler Flow Velocity Indices (RI, PI, S/D & PSV) of Fetal Middle Cerebral Artery in Normal Pregnancies: Correlation with Gestational Age of 20 to 40 Weeks

2012 ◽  
Vol 2 (2) ◽  
pp. 77-80
Author(s):  
Md Abu Taher ◽  
Nuzhat Tasmin ◽  
AS Mohiuddin ◽  
Md Mohit Ul Alam ◽  
Md Mofazzal Sharif ◽  
...  
Keyword(s):  
Middle Cerebral Artery ◽  
Flow Velocity ◽  
Cerebral Artery ◽  
Gestational Age ◽  
Resistance Index ◽  
Peak Systolic Velocity ◽  
Doppler Flow ◽  
Significant Difference ◽  
Before And After ◽  
Doppler Indices

This observational type of descriptive study was carried out in the Department of Radiology and Imaging, BIRDEM selecting 70 Bangladeshi pregnant babies with the aim to find out the normogram of foetal middle cerebral artery Doppler flow velocity indices and correlation between Doppler flow velocity indices [Resistance Index (RI), Pulsatility Index (PI), Systolic/Diastolic ratio (S/D) & Peak Systolic Velocity (PSV)] of foetal middle cerebral artery and gestational age in normal pregnancies of 20 to 40 weeks. It was observed that RI, PI and S/D were decreased with the advance of gestational age but PSV was increases with the advance of gestational age. Statistical analyses showed there were significant difference between mean PSV, RI and PI before and after 25 weeks of gestation. No significant difference was found between mean S/D before and after 25 weeks of gestation. It was observed from Correlation analysis between Doppler indices with independent gestational age that all the Doppler indices of foetal middle cerebra artery was positively correlated with the whole gestation period. The statistical analysis showed only PSV and RI were significantly correlated with the gestational age. Simple regression analysis between dependent Doppler index with independent gestational age before and after 25 weeks revealed that all the Doppler indices had positive relationship with the corresponding gestational age but relationship between PSV and PI (before 25 weeks) with their corresponding gestational ages were only statistically significant.DOI: http://dx.doi.org/10.3329/birdem.v2i2.12306 Birdem Med J 2012; 2(2) 77-80

Effect of Maternal Body Mass Index and Amniotic Fluid Index on the Accuracy of Sonographic Estimation of Fetal Weight in Late Gestation

2018 ◽  
Vol 35 (13) ◽  
pp. 1235-1240 ◽  
Author(s):  
Burton Rochelson ◽  
Leah Stork ◽  
Stephanie Augustine ◽  
Meir Greenberg ◽  
Cristina Sison ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Amniotic Fluid ◽  
Body Mass ◽  
Fetal Weight ◽  
Maternal Body Mass Index ◽  
Amniotic Fluid Index ◽  
Maternal Body ◽  
Significant Difference ◽  
Substantial Error ◽  
Maternal Bmi

Objective The objective of this study was to determine the effect, if any, of maternal body mass index (BMI) and amniotic fluid index (AFI) on the accuracy of sonographic estimated fetal weight (EFW) at 40 to 42 weeks' gestation. Methods This was a retrospective cohort study of singleton gestations with ultrasound performed at 40 to 42 weeks from 2010 to 2013. In this study, patients with documented BMI and sonographic EFW and AFI, concurrently, within 7 days of delivery were included. Chronic medical conditions and fetal anomalies were excluded from this study. The primary variable of interest was the rate of substantial error in EFW, defined as absolute percentage error (APE) >10%. Results A total of 1,000 pregnancies were included. Overall, the APE was 6.0 ± 4.5% and the rate of substantial error was 17.4% (n = 174). There was no significant difference in APE or rate of substantial error between BMI groups. In the final multivariable logistic regression model, the rate of substantial error was increased in women with oligohydramnios (OR 1.79; 95% CI: 1.10–2.92). Furthermore, oligohydramnios was significantly more likely to overestimate EFW while polyhydramnios was more likely to underestimate EFW. Maternal BMI did not affect the accuracy of sonographic EFW. Conclusion Sonographic EFW may be affected by extremes of AFI in the postdates period. Maternal BMI does not affect EFW accuracy at 40 to 42 weeks.

scholarly journals Amniotic fluid index versus maximum vertical pocket measurement in predicting perinatal outcome at 40 weeks or beyond

2018 ◽  
Vol 7 (12) ◽  
pp. 4887
Author(s):  
Nasreen Noor ◽  
Seema Amjad Raza ◽  
Shazia Parveen ◽  
Mohammad Khalid ◽  
Syed Manazir Ali
Keyword(s):  
Amniotic Fluid ◽  
Vaginal Delivery ◽  
Perinatal Outcome ◽  
Prospective Observational Study ◽  
Fetal Distress ◽  
Normal Vaginal Delivery ◽  
Amniotic Fluid Index ◽  
Institutional Ethics ◽  
Significant Difference ◽  
Baseline Demographic

Background: The aim of this study is to compare the use of amniotic fluid index with maximum vertical pocket for predicting perinatal outcomes.Methods: The present study was a prospective observational study and includes 140 The study include normal antenatal women at gestational age 40 weeks or beyond (by last menstrual period/1st trimester scan) referred from antenatal between 20 to 40 years were enrolled in this study from 2015 to 2017. After Institutional Ethics Committee approval all recruited women was assessed at the 3rd trimester visit for baseline demographic and obstetric data. After taking a detailed history and examination the women were subjected to ultrasonography for Amniotic Fluid index (AFI) and Maximum vertical pocket (MVP). The women were divided into 2 groups based on measurement of AFI and MVP ultrasonologically. The correlation of Amniotic fluid index and Maximum vertical pocket with perinatal outcome were computed for the 2 groups: Group Ia - women having normal AFI and normal MVP; Group Ib - women having decreased AFI and normal MVP.Results: In Group Ia, 31(34.44%) women were induced and in Group Ib 59 (65.56%) women were induced for oligohydramnios. 65 women (72.22%) had normal vaginal delivery versus 25women (27.28%) had undergone LSCS in Group Ia, while in Group Ib, 32 women (64%) versus 18 women (36%) had vaginal delivery and LSCS respectively. Higher rate of LSCS was observed in Group Ib. There was no significant difference in the rate of LSCS for fetal distress between Group Ia and Ib for fetal distress.Conclusions: Amniotic fluid index (AFI) compared with the maximum vertical pocket (MVP) excessively characterizes patients as having oligohydramnios, leading to an increase in obstetric interventions, without any documented improvement in perinatal morbidity and mortality. Thus, authors cannot find any objective reason to favour AFI over MVP.

scholarly journals Comparison of Amniotic Fluid Index and Single Deepest Vertical Pool method for predicting fetal outcome

2017 ◽  
Vol 13 (4) ◽  
pp. 401-405
Author(s):  
Rajiv Shah ◽  
Paban Sharma
Keyword(s):  
High Risk ◽  
Data Collection ◽  
Amniotic Fluid ◽  
Mode Of Delivery ◽  
Well Being ◽  
Fluid Volume ◽  
Study Group ◽  
Amniotic Fluid Index ◽  
Amniotic Fluid Volume ◽  
Significant Difference

Background & Objectives: The measurement of amniotic fluid volume (AFV) has been an important component of antenatal evaluation of fetal well being. The most commonly used methods are by amniotic fluid index technique (AFI) and single deepest pool method (SDVP). Both the methods employ ultrasound for AFV measurement. The objective of this study is to compare the usefulness of AFI and SDVP method in assessing amniotic fluid volume for predicting adverse perinatal outcome.Materials & Methods: This is a hospital based prospective comparative study. The patient whose amniotic fluid was measured by SDVP technique was study group and that by AFI was comparison group. Any case with high risk factor was excluded from the study. First case was decided by lottery and then alternately one case was kept in study group and the other in comparative group. If the women did not deliver within 1 week the measurements was retaken and the final values was used for analysis.AFI was estimated as described by Phelan and colleagues and SDVP as described by Manning. Data collection was started after the approval of Institution review board. This study was conducted at Patan Academy of Health Sciences. Duration of data collection was 3 months, Asadh –Bhadra, 2071.Results: A total of one hundred and fifty four cases which met the inclusion criteria were taken. Incidence of oligohydramnios by SDVP method was 10.4 % by SDVP technique and by AFI method it was 18.2 %. There was no statistical significant difference between the two groups in terms of rate of induction, mode of delivery, meconium staining of liquor, fetal heart rate tracings, APGAR score at 5 mins and admission to special care baby unit.Conclusion: In non-high risk pregnancy AFI technique detects slightly more number of oligohydramnios as compared to SDVP technique without apparently any difference in perinatal outcome.

Phasic Renal Artery Flow Velocity During Ventricular Tachycardia in Man: A Possible Mechanism of Renal Shutdown

CHEST Journal ◽  
1972 ◽  
Vol 61 (4) ◽  
pp. 381-383
Author(s):  
Alberto Benchimol ◽  
James Schumacher ◽  
Kenneth B. Desser
Keyword(s):  
Ventricular Tachycardia ◽  
Renal Artery ◽  
Flow Velocity ◽  
Artery Flow

Longitudinal reference intervals for Doppler velocimetric parameters of the fetal renal artery correlated with amniotic fluid index among low-risk pregnancies

2015 ◽  
Vol 131 (1) ◽  
pp. 45-48 ◽  
Author(s):  
Camilla O. Figueira ◽  
Fernanda G. Surita ◽  
Márcia S.J. Dertkigil ◽  
Simiran L. Pereira ◽  
João R. Bennini ◽  
...  
Keyword(s):  
Amniotic Fluid ◽  
Renal Artery ◽  
Reference Intervals ◽  
Low Risk ◽  
Amniotic Fluid Index

scholarly journals Evaluation of feto-maternal outcome using AFI and SDVP for amniotic fluid assessment; Which is a better method?

2017 ◽  
Vol 6 (7) ◽  
pp. 3109
Author(s):  
Biplab Mukhopadhyay ◽  
Syed Nawaz Ahmad ◽  
Shefali Agarwal ◽  
Shashi Lata Kabra
Keyword(s):  
Amniotic Fluid ◽  
Fluid Volume ◽  
Foetal Heart Rate ◽  
Amniotic Fluid Index ◽  
Amniotic Fluid Volume ◽  
Group I ◽  
Foetal Outcome ◽  
Group Ii ◽  
Nicu Admission ◽  
Sonographic Sign

ABSTRACTBackground: Abnormal amniotic fluid volume (AFV) may be the only or earliest sonographic sign of an obstetrical problem. There is no clear consensus on the best method to assess amniotic fluid adequacy. The AFI and the SDVP are the more commonly employed techniques for assessing adequacy of amniotic fluid. This study aimed to compare the maternal and foetal outcome when amniotic fluid was measured by these two methods.Methods: Hundred pregnant women at >28 weeks gestation scheduled for test of biophysical score due to various risk factors were enrolled and divided in two groups of 50 each. In each group, amniotic fluid volume was determined by either calculating the Amniotic Fluid Index (AFI) or measuring the Single Deepest Vertical Pocket (SDVP). Oligohydramnios was declared at cut off of <5 for the former and <2cm for the later method respectively. Maternal and foetal outcomes were compared between the two groups.Results: Diagnosis of oligohydramnios was 45/50 in group I and 23/50 in group II (p<0.0001). Induction of labour was done in 70.0% in group I and 18% in group II (p<0.0001). Non-reassuring foetal heart rate was seen in 36.0% in group I and 14.0% in group II (p=0.011). Rate of caesarean delivery was significantly higher in group I, 42.0% in comparison of 20.0% in group II (p=0.017). NICU admission were 32.0% in group I and 18.0% in group II (p=0.106).Conclusions: SDVP is a better choice for determining amniotic fluid to avoid unnecessary interventions without any significant improvement in peripartum outcome measures.

scholarly journals Relationship between Amniotic Fluid Index and Perinatal Outcome

2015 ◽  
Vol 10 (1) ◽  
pp. 48-51
Author(s):  
S Pradhan ◽  
A Adhikary ◽  
P Pradhan ◽  
S Pradhan
Keyword(s):  
Birth Weight ◽  
Caesarean Section ◽  
Amniotic Fluid ◽  
Apgar Score ◽  
Perinatal Outcome ◽  
Fetal Distress ◽  
Amniotic Fluid Index ◽  
Significant Difference ◽  
Low Birth Weight Babies ◽  
Meconium Staining

Aims:  This study was done to evaluate the predictive value of low amniotic fluid index (AFI) of < 5 cm for adverse perinatal outcome in term of caesarean section for fetal distress, birth weight, meconium stained liquor and APGAR scores. Methods: This was a prospective study of 200 antenatal women booked at Nepal Medical College Teaching Hospital during the year 2013-2014 with gestational age between 34 and 41 weeks. Patients history and clinical examination were recorded and AFI was measured and the perinatal outcome was compared between two groups i.e AFI <5 cm and >5 cm. Results: The caesarean section (C/S) rate for fetal distress and low birth weight babies (<2.5 kg) was higher in patients with low AFI (p=0.048, 0.001 respectively). There was no significant difference in meconium staining, APGAR score at 5 minutes between the two groups (p=0.881, 0.884 respectively). Conclusions: Caesarean section for fetal distress and low birth weight babies was significantly associated with low amniotic fluid index. There was no significant difference in meconium staining liquor, APGAR score at 5 minutes between the two groups.  

scholarly journals The Influence of Fasting in Summer on Amniotic Fluid During Pregnancy

2016 ◽  
Vol 6 ◽  
pp. 21
Author(s):  
Ayşegül Altunkeser ◽  
Muslu Kazım Körez
Keyword(s):  
Amniotic Fluid ◽  
Pregnant Women ◽  
Fetal Growth ◽  
Growth Parameters ◽  
Fluid Volume ◽  
Control Group ◽  
Growth Data ◽  
Amniotic Fluid Index ◽  
Amniotic Fluid Volume ◽  
Significant Difference

Objectives: Ramadan is a holy month in which eating and drinking are forbidden from dawn to sunset. In this study, we investigated using ultrasonography (USG) whether fasting in summer (as occurred in Ramadan 2014) had an influence on the volume of amniotic fluid during pregnancy. Materials and Methods: The study included 119 pregnant women in total who were admitted to our department with a request of obstetric USG between June 28, 2014, and July 27, 2014. The fasting group included 61 pregnant women and the control group of 58 pregnant women. In our study, all the fasting pregnant women had Sahur (predawn meal eaten before starting fasting) and Iftar (the evening meal for fast-breaking) every day, regularly. The women in the control group did not fast. In addition to amniotic fluid index and fetal biometric measurements during Ramadan, amniotic fluid volume was measured ultrasonographically throughout pregnancy. All ultrasound examinations were performed at least 8 h after Sahur during Ramadan. Chi-square test was utilized to compare the measurements of amniotic fluid volume, and Mann–Whitney U-test was utilized to analyze the differences in fetal growth data. Moreover, difference was considered statistically significant when the P value was <0.05. Results: The mean age was 25.7 years in the fasting group and 25.8 years in the control group. Other characteristics and mean gestational weeks of the two groups were similar. Ultrasonographically, there was no significant difference between two groups in respect to amniotic fluid amount during pregnancy (P = 0.7). There was no significant difference with regard to fetal growth parameters either (P > 0.05). Conclusion: In pregnant women who had regular predawn and fast-breaking meals, fasting in summer did not elicit alteration in the amount of amniotic fluid throughout pregnancy.

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