scholarly journals Can a Difference in Gestational Age According to Biparietal Diameter and Abdominal Circumference Predict Intrapartum Placental Abruption?

2021 ◽  
Vol 10 (11) ◽  
pp. 2413
Author(s):  
Jee-Youn Hong ◽  
Jin-Ha Kim ◽  
Seo-yeon Kim ◽  
Ji-Hee Sung ◽  
Suk-Joo Choi ◽  
...  
Keyword(s):  
Gestational Age ◽  
Odds Ratio ◽  
Retrospective Cohort ◽  
Maternal Age ◽  
Placental Abruption ◽  
Independent Predictor ◽  
Abdominal Circumference ◽  
Biparietal Diameter ◽  
Study Population ◽  
Independent Risk Factors

This study aimed to investigate whether a difference in gestational age according to biparietal diameter (BPD) and abdominal circumference (AC) could be a clinically useful predictor of placental abruption during the intrapartum period. This retrospective cohort study was based on singletons who were delivered after 32 + 0 weeks between July 2015 and July 2020. We only included cases with at least two antepartum sonographies available within 4 weeks of delivery (n = 2790). We divided the study population into two groups according to the presence or absence of placental abruption and compared the clinical variables. The incidence of placental abruption was 2.0% (56/2790) and was associated with an older maternal age, a higher rate of preeclampsia, and being small for the gestational age. A difference of >2 weeks in gestational age according to BPD and AC occurred at a higher rate in the placental abruption group compared to the no abruption group (>2 weeks, 21.4% (12/56) vs. 7.5% (205/2734), p < 0.001; >3 weeks, 12.5% (7/56) vs. 2.0% (56/2734), p < 0.001). Logistic regression analysis revealed that the differences of >2 weeks and >3 weeks were both independent risk factors for placental abruption (odds ratio (OR) (95% confidence interval), 2.289 (1.140–4.600) and 3.918 (1.517–9.771), respectively) after adjusting for maternal age, preeclampsia, and small for gestational age births. We identified that a difference in gestational age of >2 weeks between BPD and AC could be an independent predictor of placental abruption.

scholarly journals Placental thickness: an important parameter in determining gestational age and fetal growth during ANC scan

2018 ◽  
Vol 7 (11) ◽  
pp. 4619
Author(s):  
Dipali Kadam ◽  
Saurabh Patil ◽  
Meenal Jain
Keyword(s):  
Gestational Age ◽  
Abdominal Circumference ◽  
P Value ◽  
Third Trimester ◽  
Cross Sectional ◽  
Femur Length ◽  
Biparietal Diameter ◽  
Antenatal Sonography ◽  
Umbilical Cord Insertion ◽  
Placental Thickness

Background: Gestational Age (GA) is one of the most imperative parameters required for proper management in pregnancy. Routinely GA is estimated by sonography utilising Biparietal Diameter (BPD), Femur Length (FL), Abdominal Circumference (AC) and Head Circumference (HC). In any case, these parameters have some limitations. Hence, there is need to find other parameters that may complement the established fetal biometric parameters in predicting GA. The objective of the present study was to assess placental thickness in second and third trimester pregnancies and its relationship with fetal gestational age and its role in detecting LBW and IUGRMethods: A cross sectional prospective study was carried out in three hundred pregnant women between 13 to 40 weeks of gestation, who came for routine antenatal sonography. Placental thickness was measured along with routine parameters. Placental thickness was measured at the level of umbilical cord insertion by two-dimensional ultrasonography.Results: Correlation between the GA by LMP and Placental thickness by ultrasound was done by using Karl Pearson's Correlation(r). The values were expressed as mean + standard deviation. Correlation between placental thickness and gestational age was statistically significant as p value is <0.01. Placental thickness measured in millimetres increases with gestational age in second and third trimester.Conclusions: The correlation between the placental thickness and gestational age was linear and direct. Therefore, Placental thickness is used as a predictor for estimation of gestational age of the fetus in cases where LMP is not known and in detecting developing IUGR and low birth weight.

Sonographic Correlation Between Distal Femoral Epiphysis Ossification Centre And Gestational Age From 28 Weeks To 40 Weeks In Population Of Faisalabad City

2020 ◽  
pp. 12-19
Author(s):  
OJS Admin
Keyword(s):  
Gestational Age ◽  
Age Estimation ◽  
Abdominal Circumference ◽  
Perinatal Morbidity ◽  
Ossification Centre ◽  
Age Assessment ◽  
Crown Rump Length ◽  
Biparietal Diameter ◽  
Distal Femoral Epiphysis ◽  
Ossification Centers

Gestational age assessment is one of the most important tool used for estimation of perinatal morbidity and mortality. Age estimation of fetus can be recorded with the help of various parameters such as biparietal diameter, abdominal circumference, head circumference, length of the kidneys, crown rump length, length of the long bones and ossification centers.

scholarly journals Acute Kidney Injury and Bronchopulmonary Dysplasia in Premature Neonates Born Less than 32 Weeks' Gestation

2019 ◽  
Vol 37 (03) ◽  
pp. 341-348 ◽  
Author(s):  
Michelle C. Starr ◽  
Louis Boohaker ◽  
Laurie C. Eldredge ◽  
Shina Menon ◽  
Russell Griffin ◽  
...  
Keyword(s):  
Acute Kidney Injury ◽  
Bronchopulmonary Dysplasia ◽  
Premature Infants ◽  
Gestational Age ◽  
Odds Ratio ◽  
Retrospective Cohort ◽  
Primary Outcome ◽  
Secondary Analysis ◽  
Kidney Injury ◽  
Multiple Factors

Abstract Objective This study aimed to evaluate the association between acute kidney injury (AKI) and bronchopulmonary dysplasia (BPD) in infants born <32 weeks of gestational age (GA). Study Design Present study is a secondary analysis of premature infants born at <32 weeks of GA in the Assessment of Worldwide Acute Kidney Injury Epidemiology in Neonates (AWAKEN) retrospective cohort (n = 546). We stratified by gestational age and used logistic regression to determine association between AKI and moderate or severe BPD/mortality. Results Moderate or severe BPD occurred in 214 of 546 (39%) infants, while death occurred in 32 of 546 (6%); the composite of moderate or severe BPD/death occurred in 246 of 546 (45%). For infants born ≤29 weeks of gestation, the adjusted odds ratio (OR) of AKI and the primary outcome was 1.15 (95% confidence interval [CI] = 0.47–2.86; p = 0.76). Infants born between 29 and 32 weeks of gestation with AKI had four-fold higher odds of moderate or severe BPD/death that remained after controlling for multiple factors (adjusted OR = 4.21, 95% CI: 2.07–8.61; p < 0.001). Conclusion Neonates born between 29 and 32 weeks who develop AKI had a higher likelihood of moderate or severe BPD/death than those without AKI. Further studies are needed to validate our findings and evaluate mechanisms of multiorgan injury.

scholarly journals Sonographic Reference Values for Fetal Transverse Cerebellar Diameter in the Second and Third Trimesters in a Nigerian Population

2017 ◽  
Vol 33 (3) ◽  
pp. 174-181 ◽  
Author(s):  
Charles Ugwoke Eze ◽  
Queendaline Ebere Onwuzu ◽  
Innocent Uchechukwu Nwadike
Keyword(s):  
Reference Values ◽  
Gestational Age ◽  
Head Circumference ◽  
Outer Margin ◽  
Menstrual Period ◽  
Last Menstrual Period ◽  
Abdominal Circumference ◽  
Femur Length ◽  
Biparietal Diameter ◽  
Nigerian Population

This study aimed to establish reference values of fetal transverse cerebellar diameter (TCD) in a Nigerian population. A cross-sectional convenience study was carried out between June 2013 and May 2014 in Enugu, Nigeria. The sonographic examinations were performed on 697 pregnant women with gestational ages between 14 and 40 weeks. The TCD measurements were obtained from the proximal outer margin to the distal outer margin of cerebellum. The women’s last menstrual period, femur length, biparietal diameter, head circumference, and abdominal circumference were also recorded. The mean (standard deviation) TCD increased from 13.6 (2.2) mm to 27.3 (2.6) mm and 28.9 (2.0) mm to 42.9 (2.0) mm in the second and third trimesters, respectively. The relationship of TCD with gestational age obtained from last menstrual period, femur length, biparietal diameter, head circumference, and abdominal circumference was determined. The TCD had a strong correlation with gestational age ( r = .93; P < .05). Reference values for TCD were established for those patients who attended this clinic. This is a likely data set to use for future research that could focus on similar practices and in other regions of the country for possible generation of a nationwide nomogram.

scholarly journals TO COMPARE ESTIMATION OF GESTATIONAL AGE BY FOETAL TRANSCEREBELLAR DIAMETER WITH BIPARIETAL DIAMETER`, FEMUR LENGTH, ABDOMINAL CIRCUMFERENCE, HEAD CIRCUMFERENCE AT DEPARTMENT OF OBSTETRICS AND GYNAECOLOGY AT SMS MEDICAL COLLEGE, JAIPUR

2020 ◽  
Vol 4 (6) ◽  
Author(s):  
Samta Solanki ◽  
Anusha S ◽  
B S Meena
Keyword(s):  
Gestational Age ◽  
Cross Sectional Study ◽  
Abdominal Circumference ◽  
Third Trimester ◽  
Cross Sectional ◽  
Femur Length ◽  
Medical College ◽  
Obstetrics And Gynaecology ◽  
Biparietal Diameter ◽  
The Mean

Background: Ultrasonographic assessment of gestational age by using different foetal parameter such as BPD, FL, AC are highly reliable in first and second trimester in pregnancy. In third trimester reliability of any single parameter has limitations. Methods: This was a hospital based comparative cross-sectional study done in the Department of Obstetrics and Gynaecology, S.M.S. Medical College and attached hospitals, Jaipur, Rajasthan. The period of study was from June 2018 to October 2019. Results: The mean TCD at 15 weeks and 40 weeks was 15.00 ± 0.00mm and 53.33±1.155mm respectively. The mean BPD at 16 weeks and 40 weeks was 33.50±0.70mm and 93±1.528mm respectively. The mean HC at 15 weeks and 40 weeks was 111.00±1,41mm and 340±2.00mm respectively. The mean FL at 15 weeks and 40 weeks was 18.50±0.70mm and 77.67±1.528mm respectively. The mean AC at 15 weeks and 40 weeks was 99.00±1.41mm and 365.33±8.32mm respectively. Conclusion:  We conclude that foetal transcerebellar diameter can thus be used as an alternative foetal parameter to assess gestational age and can be used in cases of wrong dates or when other routine parameters are not conclusive or did not accurately predict gestational age for e.g. in cases of hydrocephalus, brachycephaly, dolicocephaly, intrauterine growth restriction, achondroplasia or short limb dwarfism. Keywords: Gestational age, Linear regression, BPD

scholarly journals Determination of Gestational Age by Fetal Kidney Length Measurement after the 20th Week in Healthy Women with Uncomplicated Pregnancy in Tertiary Care Centre

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Joshi BR ◽  
◽  
Chaurasia AK ◽  
Khanal UP ◽  
◽  
...  
Keyword(s):  
Gestational Age ◽  
Linear Correlation ◽  
Head Circumference ◽  
Abdominal Circumference ◽  
Fetal Kidney ◽  
Uncomplicated Pregnancy ◽  
Biparietal Diameter ◽  
Study Results ◽  
Kidney Length

Introduction: Various organs are measured to estimate the gestational age of fetus. Sonographically derived parameters used to date pregnancy include Crown rump length, Biparietal diameter, Head circumference, Femoral length and Abdominal circumference. Fetal kidney length, transcerebellar diameter and placental thickness are emerging as new parameters and are claiming to be more accurate in certain situations. In Nepalese context fetal kidney length has not been studied yet so this study was done to fill this need. Methodology: Obstetric sonography was performed in 108 pregnant women with uncomplicated pregnancy to evaluate the efficacy of FKL as a measure to calculate the predicted gestational age. Gestational age ranged from 20 weeks to term. Only patient with known LMP, previous history of normal menstrual cycle and without any exclusion criteria were included in the study. Results: The study showed mean fetal kidney length at 20-24, 25-29, 30- 34 and 35-37 weeks gestation as 22.5±0.5, 26.9±0.7, 32.32±0.7 and 36.3±0.6 respectively. Overall in combined second and third trimester , fetal kidney length showed strong linear correlation with gestation age with highest significant Pearson correlation coefficient of 0.989 as compared to other parameters (BPD=0.986, HC=0.976, AC=0.971, FL=0.984). Conclusion: Fetal kidney showed strongest linear correlation with clinical gestational age and it also demonstrated positive correlation with biparietal diameter, head circumference, abdominal circumference and femur length. Therefore fetal kidney length can be used as a reliable parameter for determination of gestational age.

scholarly journals Transverse cerebellar diameter: a reliable predictor of gestational age

2020 ◽  
Vol 20 (4) ◽  
pp. 1927-32
Author(s):  
Sanjay Mishra ◽  
Surajit Ghatak ◽  
Pratibha Singh ◽  
Dushyant Agrawal ◽  
Pawan Garg
Keyword(s):  
Gestational Age ◽  
Indian Population ◽  
Cross Sectional Study ◽  
Abdominal Circumference ◽  
Sectional Study ◽  
Ethnic Population ◽  
Cross Sectional ◽  
Femur Length ◽  
Biparietal Diameter ◽  
Significant Difference

Objectives: To determine accuracy of transverse cerebellar diameter (TCD) measurement in the prediction of gestational age (GA) in normal fetuses; to develop reference chart for TCD according to GA in Indian population. Design: A retrospective cross-sectional study. Method: Ultrasonographic measurements in 300 singleton pregnant women included biparietal diameter (cm), head circum- ference (cm), abdominal circumference (cm), femur length (cm) and transverse cerebellar diameter (cm). Reference chart with mean TCD for corresponding gestational age (GA) in weeks was developed. Results: Statistically significant relationship found between TCD and gestational age (R2=0.92, p=0.0006). Regression for- mulae based on TCD with other parameter can be used to predict gestational age of foetus. When TCD is compared with findings in other studies in different ethnic population, it is found that there is significant difference exists. Conclusion: In normally developing fetuses the TCD has linear correlation with advancing gestational age. A separate refer- ence chart is required for every different population because ethnicity, nutrition and environmental factors can have impact on normal TCD values. This will help to avoid misinterpretation of data to determine gestational age. Keywords: Transverse cerebellar diameter; ultrasonography; gestational age.

scholarly journals Can trans-cerebellar diameter supersede other fetal biometry in measuring gestational age? A prospective study

2021 ◽  
Vol 52 (1) ◽  
Author(s):  
Rintu George ◽  
Umamageswari Amirthalingam ◽  
Mohamed Rafi Kathar Hussain ◽  
Vigneshwar Aditiya ◽  
A. M. Anand ◽  
...  
Keyword(s):  
Gestational Age ◽  
Abdominal Circumference ◽  
Radiology Department ◽  
Fetal Head ◽  
Cross Sectional ◽  
Femur Length ◽  
Fetal Biometry ◽  
Biparietal Diameter ◽  
A Prospective Study ◽  
Gestational Age Estimation

Abstract Background Estimation of gestational age plays a pivotal role in day to day clinical practice for appropriate management of newborn. The trans-cerebellar diameter can predict gestational age in cases of variations of fetal head shape such as dolichocephaly and brachycephaly or even when fetus is in posterior position. Trans-cerebellar diameter (TCD) may be useful in gestational age estimation. Aim and methodology To determine the accuracy of trans-cerebellar diameter in the estimation of gestational age of fetus and comparing the conventional parameters like head circumference, biparietal diameter, abdominal circumference and femur length in the measurement of gestational age. This is a prospective, cross-sectional analytical study done in the Radiology Department in those patients who were referred to the department for a routine antenatal ultra-sonogram checkup. Results Comparison of trans-cerebellar diameter with gestational age derived from last menstrual period indicates that there is a linear relationship throughout the gestational ages. There is a strong correlation of trans-cerebellar diameter with other conventional parameters namely biparietal diameter, femur length and abdominal circumference of which Femur length correlates well with the trans-cerebellar diameter. Correlation of transcerebellar diameter with gestational age shows a R2 of 0.995 (p value < 0.001). Conclusion Trans-cerebellar diameter is best in estimation of gestational age when compared to biparietal diameter, femur length and abdominal circumference. The regression formula derived from trans-cerebellar diameter measurement can be applied to determine the gestational age of fetus.

scholarly journals Determination of Gestational Age: A Perspective With the Bangladeshi Ethnicity

2018 ◽  
Vol 14 (6) ◽  
pp. 375
Author(s):  
M. Lutfor Rahman ◽  
Aysha Sultana ◽  
Kalyan Das
Keyword(s):  
Gestational Age ◽  
Regression Models ◽  
Abdominal Circumference ◽  
Linear Regression Models ◽  
Cross Sectional ◽  
Anatomical Structures ◽  
Femur Length ◽  
Precise Estimation ◽  
Biparietal Diameter

Determination of gestational age (GA) with precision is vital to the proper care of pregnant mothers. Our present study aimed at determining the gestational ages by the ultrasonic measurements of four standard fetal parameters namely biparietal diameter (BPD), head circumference (HC), abdominal circumference (AC), and femur length (FL) specifically focusing on the Bangladeshi ethnic population. The current study is cross-sectional but data were collected in a prospective nature. There were 229 Bangladeshi women who had usual singleton fetuses with the evidence of menstrual dates by sonography before 14 weeks. Fetal anatomical structures have been scanned and measured at the time of sonographic inspection. Multiple linear regression models of GA by the date of last menstrual period (LMP) and GA by ultrasonographic measures have been fitted on four fetal parameters for our analysis. In the present analysis, we have found that all the response variables i.e. gestational age by LMP and gestational age by ultrasonography (USG) clearly depend on the fetal parameters. The best subsets regression analysis shows that BPD, AC, and FL are the best predictors of GA by LMP (adj R 2 = 96.54). In terms of Mallow’s Cp and adj R 2 , it is found that all the fetal parameters BPD, AC, HC and FL are important predictors for GA by USG. It has been observed that multiple fetal parameters measured by ultrasonography can be useful to predict gestational age during second and third trimesters. Precise estimation of gestational age by this method is helpful to reduce pregnancy-related complicacy and maternal death in the developing countries including Bangladesh.

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