scholarly journals Placental Thickness & its Correlation to Gestational Age & Foetal Growth Parameters- A Cross Sectional Ultrasonographic Study

Author(s):  
T Karthikeyan
2018 ◽  
Vol 6 (2) ◽  
Author(s):  
Sumnima Acharya ◽  
Awadesh Tiwari ◽  
Rupesh Sharma

Introduction: Placenta grows in size with the advancement of gestational age (GA) and plays an important role for delivery of nutrients from mother to fetus. Ultrasonography (USG) is implicated for the estimation of GA by using fetal growth parameters like Femur Length (FL), Bi-parietal Diameter (BPD), Head Circumference (HC), and Abdominal Circumference (AC). This study intends to observe the correlation between Placental Thickness (PT) and GA. Methods: It was an observational, cross-sectional, and analytical study conducted over a period of six months from November 2017 to April 2018. Fetal growth parameters i.e. FL, BPD, HC, and AC were measured to estimate GA. PT was also measured at the same time. Results: There was a positive correlation between PT and GA (r = 0.89, n=249, p < 0.001). Pearson correlation coefficient between the two variables at second and third trimesters were 0.81 and 0.49 respectively. Fisher r-to-z transformation was used to analyze the difference between those two coefficients and was found to be statistically significant (z = 4.6, p < 0.001). This indicates that there was a significant overall relationship between PT and GA. As GA increases, PT also increases. Conclusion: Our study observed a positive correlation between the PT and GA in second and third trimesters. Thickness of placenta can thus be used as a reliable parameter for the estimation of GA during the second and third trimesters, and can be used as a supplementary USG parameter along with FL, BPD, HC and AC.


Author(s):  
M Ahmad ◽  
MN Anjum ◽  
M Asif ◽  
S Ayub ◽  
A Muzaffar ◽  
...  

The placenta is a meterno-fetal organ and starts developing on the 5th week from chorionic villi at the implantation site. The placenta continues to increase in thickness and hence its thickness can be used to indicate the gestational age when the last menstruation date is not confirmed. The purpose of the study was to find out the correlation of placental thickness to the gestational age estimated by growth parameters of the fetus. The study was a cross-sectional analytical study conducted on 2000 participants. The study was conducted in the Department of Radiology Social Security Hospital, Multan Chungi Lahore. The inclusion-exclusion criteria were established and participants were observed using a Toshiba ultrasonography machine. The subjects were placed supine and placental thickness was measured to the accuracy of 1mm. Pearson’s correlation was applied to find out the correlation between placental thickness and gestational age of the participants. The mean age of the participants was 28.37  +  4.6. The youngest participant was age 18 and the eldest participant was age 40. The gestational age of the participants included ranged between 12th week to 40th week. Pearson’s correlation score indicated that the correlation value 0.896. Which indicated that the placental thickness and gestational age were strongly correlated? The P-value < 0.05 indicated that the results were significant. The study concluded a strong correlation between gestational age and placental thickness of the fetus. The thickness of the placenta increased with an increase in gestational age and hence could be used as a predictor and a parameter of gestational age prediction when the last menstruation is uncertain or is unknown.


2017 ◽  
Vol 4 (2) ◽  
pp. 53-57
Author(s):  
Ranjan Peasad Devbhandari ◽  
Rajendra Raut ◽  
Jessica Shrestha ◽  
Kedar Prasad Baral

Introductions: Gestational age is estimated on the basis of last normal menstrual period and the measurement of foetal growth parameters by ultrasonography. The lack of accurate recollection of the last menstrual period and dependence of growth parameters on intra-uterine environment, physical and mental well-being of the mother, maternal nutrition and genetic factors leads to the over or under estimation of gestational age. The aim of this study was to investigate the correlation between placental thicknesses (PT) in normal singleton Nepalese foetuses. Methods: This was a cross sectional study of ultrasound measurement of placental thickness during 2nd and 3rd trimester pregnancy from April 2015 to October 2015 at Department of Radiology, Suraksha Hospital, Biratnagar, Nepal. All viable singleton uncomplicated pregnancies, history of regular menstruation with known LNMP were included. Microsoft Excel and SPSS 17 were used for data analysis. Pearson’s correlation analysis was used for correlation between placental thickness and gestational age. Statistical tests were two-tailed with p<0.01 as statistical significance. Results: There were 592 pregnant women who met the criteria. Placental thickness increased by 0.86 mm in every week of increase in gestational age. The maximum mean PT of 40.42±1.05 mm was observed at 39th week. There was a significant positive correlation between placental thickness and gestational age, correlation coefficient r=0.986 (P<0.001). Conclusions: PT was found to be a reliable alternative predictor in calculating gestational age. Measurement of PT should be done routinely during obstetrics ultrasonography.


Author(s):  
Dipali Kadam ◽  
Saurabh Patil ◽  
Meenal Jain

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.


2020 ◽  
Vol 8 (3) ◽  
pp. 131-135
Author(s):  
Muna Badu ◽  
Shankar Bahadur Singh Rajbhandari ◽  
Pashupati Regmi

Background: Gestational age and fetal weight estimation by ultrasound is the most effective and accurate method to date pregnancy. Ultrasound has been used to characterize placental position and morphologic changes. Placental thickness could be one additional parameter to assess gestational age and fetal weight. Objectives: This study aims to investigate the relationship between placental thickness with gestational age and fetal weight in third trimester of pregnancy in primigravida. Methodology: Prospective hospital based cross sectional study was conducted including 111 primigravida in third trimester with normal singleton pregnancies in Department of Radiology of Kathmandu Medical College Teaching Hospital from November 2018 to February 2019. Patients with known medical and obstetrical complications were excluded from the study. Placental thickness in millimeters was measured at the level of insertion of the umbilical cord. Pearson’s correlation analysis was used for analyzing variables and p-value <0.05 was considered statistically significant. Results: Mean age of participants was 28.3 ± 4.79 years. Posterior location of the placenta was most common (35%). Placental thickness correlated well with the gestational age and fetal weight. Pearson correlation coefficient was found to be 0.645 for placental thickness with gestational age and 0.598 for placental thickness with fetal weight. P-value was <0.001 in both, showing positive correlation of mentioned variables with placental thickness. Conclusion: Placental thickness can be a new and reliable parameter for estimation of gestational age and fetal weight. It can be routinely used during antenatal checkup.


2019 ◽  
Vol 47 (6) ◽  
pp. 2591-2597 ◽  
Author(s):  
Amer Mahmoud Sindiani ◽  
Rawan Obeidat ◽  
Omar Jbarah ◽  
Ethar Hazaimeh

Objectives This study aimed to determine leptin levels in term newborns who were born in the north of Jordan. We also aimed to investigate the relationships of leptin levels with fetal growth parameters, and to assess the difference in leptin levels according to sex and gestational age. Methods A cross-sectional descriptive study that involved 170 term newborns was conducted. A working sheet for data collection was created for each newborn and included sex, weight, length, head circumference, gestational age, and Apgar score. Blood samples were obtained from the umbilical cord vein of newborns after delivery to measure serum leptin levels. Data are shown as frequency, percentages, means, and standard deviations. Results We found that the mean leptin level was 1.17 ± 0.48 ng/mL. The independent t-test showed that the mean leptin level in boys (0.93 ± 0. 34 ng/mL) was significantly lower than that in girls (1.38 ± 0.47 ng/mL). Pearson’s correlations showed that leptin levels of newborns were positively and significantly correlated with weight, length, and head circumference. Conclusion In Jordanian healthy term newborns, leptin levels correlate with sex and intrauterine growth parameters.


2018 ◽  
Vol 7 (1-2) ◽  
pp. 13-18
Author(s):  
Umesh Prasad Khanal ◽  
Sharma Paudel ◽  
Benu Lohani

Introduction: Routine ultrasonography in pregnancy has the role in identifying the position, parenchyma echo pattern, variability of thickness of placenta which is associated with increased perinatal risk to both the foetus and mother. This study was carried out to establish the value of placental thickness measurement during normal pregnancy as a reliable parameter for estimating gestational age of the foetus.Methods: This was a prospective cross-sectional study done in the Department of Radiology and Imaging at Tribhuvan University Teaching Hospital from September 2004 to April 2005. Total 350 normal pregnant women of more than 15 weeks of gestation were included. Ultrasonographic measurement of placental thickness and fetal biometric measurements were obtained. Correlation coefficient tests were performed between the gestational age in weeks and placental thickness using Karl Pearson formula in SPSS 10 package.Results: Mean placental thickness measured at the cord insertion site increased from 15.28 mm at 15 weeks of gestational age to 39.57 mm at 39 weeks of gestational age correlated almost exact with a standard mean of deviation of ± 1.8 mm (r >0.851, p <0.001).Conclusion: Ultrasonographic measurement of placental thickness during normal pregnancy can predict the gestational age of the fetus with high confidence level and can be included as one of the biometric measurements of foetus to estimate its gestational age.


2020 ◽  
Vol 36 (5) ◽  
Author(s):  
Ngozi R. Njeze ◽  
Joseph O. Ogbochukwu ◽  
Josephat M. Chinawa

Background & Objectives: Estimation of fetal maturity is common in obstetric practice especially when the women do not keep accurate menstrual records. An accurate establishment of expected date of delivery is fundamental to the management of both high risk and normal pregnancies. The objective of this study was to determine the placental diameter (PD), placental thickness (PT) and to establish a correlation between PD, PT and gestational age. Methods: This is an observational cross-sectional study that examines by means of ultrasonography the correlation between placental diameter and thickness with gestational age in Enugu, South East, Nigeria. Results: A total of 400 healthy subjects were recruited in 3rd trimester of pregnancy having fulfilled the inclusion criteria. PD and PT in this study did not correlate with parity. There is a linear increase of gestational age and placental thickness and diameter. These increases heighten between 38th week gestation and 40 weeks’ gestation. 205.0±1.4, 43.00±0.0 to 215.0±1.4, 46.00±2.8 respectively. Conclusion: Placental thickness and Placental diameter can be used to predict gestational age. It is therefore advised to use PT & PD in ultrasound obstetric assessment especially when Last menstrual period (LMP) is not clear. doi: https://doi.org/10.12669/pjms.36.5.1938 How to cite this:Njeze NR, Ogbochukwu JO, Chinawa JM. Correlation of ultrasound placental diameter & thickness with gestational age. Pak J Med Sci. 2020;36(5):---------. doi: https://doi.org/10.12669/pjms.36.5.1938 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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