Placental Morphometry Determines the Birth Weight

Balihallimath, Rupa L.; Shirol, Veereshkumar S; Gan, Anita M.; Tyagi, Naresh Kumar; Bandankar, Manisha R

doi:10.7860/jcdr/2013/7478.3564

Cited by 14 publications

(17 citation statements)

References 10 publications

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“…Placental abnormalities have been proposed to be the basis for many foetuses failing to achieve their optimal growth. Vaso-occlusive crisis occurring in the placenta may bring about tissue ischemia and death, thus threatening the viability of the placenta [ 24 ]. Prolonged hypoperfusion and poor oxygenation are likely to impair the growth of the developing foetus [ 25 ].…”

Section: Discussionmentioning

confidence: 99%

Birth Weights in Sickle Cell Disease Pregnancies: A Cohort Study

et al. 2016

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Pregnancy in women with Sickle Cell Disease (SCD) has been linked with an increased incidence of adverse foetal outcomes when compared to women without haemoglobinopathies (HbAA). There’s a paucity of data into foetal outcomes for infants born to women with SCD. Customised growth charts have been demonstrated to be better than population-based growth charts at identifying unhealthy small babies. We analysed the mean birth weight and customised birth weight centiles of infants born to mothers with SCD versus mothers with HbAA genotype, to quantify the risk of having a smaller baby. Birth weight and birth weight centiles were analysed for 88 women with SCD (50 HbSS; 38 HbSC) and 176 controls (HbAA). Statistically significant differences were seen in the mean birth weight (P value = 0.004) and the mean birth weight centiles (P value = 0.016). We conclude that SCD is a risk factor for having a smaller baby.

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Section: Discussionmentioning

confidence: 99%

Birth Weights in Sickle Cell Disease Pregnancies: A Cohort Study

et al. 2016

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“…Smaller ex vivo placental size, with or without increase in fetoplacental ratio (FPR), is observed in pregnancies ending in stillbirth [1,2], fetal growth restriction (FGR) [3,4] and reduced fetal movement pregnancies with adverse outcome [5] compared to normal outcome pregnancies. Sonographically detectable placental growth restriction precedes FGR by several weeks [6], thus assessment of in utero placental size, alone or in relation to fetal size, may improve prediction of adverse pregnancy outcome.…”

Section: Introductionmentioning

confidence: 99%

Third trimester placental volume and biometry measurement: A method-development study

et al. 2016

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a b s t r a c tObjectives: To test the hypothesis that third trimester placental biometry and volume can be measured by two-dimensional (2D) and three-dimensional (3D) ultrasound in utero, determining which method of measurement was most strongly correlated with true placental size ex vivo. Methods: Singleton pregnancies underwent placental ultrasound within seven days of delivery (n ¼ 87, 29 þ3 e41 þ5 weeks). Length and width (linear and curvilinear) and depth were estimated. Placental volume (PV) was estimated using 2D ellipse and shell techniques and 3D rotational (15⁰ and 30⁰ rotation angles) and multiplanar (5 and 10 mm slicing intervals) techniques. Measurements were compared to their true correlates following delivery. Intra-and inter-observer reliabilities of candidate placental size estimates were assessed by intraclass correlation coefficient (ICC). Results: Curvilinear placental length (R s ¼ 0.24, p ¼ 0.031), width (R s ¼ 0.27, p ¼ 0.013) and depth (R s ¼ 0.31, p ¼ 0.0056) correlated well with ex vivo measurements. All methods of PV estimation were related to ex vivo volume (R s ! 0.32, p < 0.01) but not placental weight (p > 0.05); 30 rotational estimation demonstrated the strongest biological correlation (R s ¼ 0.40, p ¼ 0.0004). Intra-and interobserver placental size measurements intraclass correlation coefficients were suboptimal (0.59e0.70 and 0.10e0.58 respectively). Discussion: We have demonstrated that it is possible to obtain information about the size of the third trimester placenta in utero using 2D and 3D ultrasound. However it is essential that the reliability (particularly interobserver reliability) of these estimates is improved prior to prospective studies to determine their predictive value.

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“…Advances in ultrasound, including the development of three-dimensional (3D) power Doppler ultrasound and virtual organ computer-aided analysis (VOCAL) have made possible the quantitative calculation of placental volume and placental blood circulation. Low placental volume during the second trimester has been shown to be associated with low birth weight [1,2,3,4,5]. Similarly, first-trimester placental volume has been found to be associated with fetal growth [6,7,8].…”

Section: Introductionmentioning

confidence: 99%

Second-Trimester Placental Volume and Vascular Indices in the Prediction of Small-for-Gestational-Age Neonates

Fang¹,

Ou²,

Tsai³

et al. 2014

Fetal Diagn Ther

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Objective: To evaluate the ability of second-trimester placental volume and vascular indices to predict small-for-gestational-age (SGA) birth weight pregnancies. Material and Methods: Women with singleton pregnancies were prospectively evaluated at 17-20 weeks of gestation. Second-trimester placental volume and vascular indices were obtained and calculated using volume organ computer-aided analysis and three-dimensional (3D) power Doppler ultrasound. Participants were followed until delivery and their medical records were reviewed, including maternal age, parity and pregestational body weight and body height, as well as the gestational age, birth weight and gender of the fetus. Results: Of the 163 women with complete follow-up, 20 gave birth to SGA and 143 to appropriate-for-gestational-age (AGA) neonates. The mean second-trimester placental volume was significantly lower in the SGA than in the AGA group (170.6 ± 49.8 vs. 213.5 ± 75.8 cm³, p = 0.015). None of the vascular indices, including the vascularization index, flow index and vascularization flow index, differed significantly between the two groups. We also found that the optimum cutoff for placental volume at a gestational age of 17-18 weeks was 189.7 cm³. Discussion: Second-trimester placental volume was positively correlated with neonatal birth weight. Second-trimester placental volume measured on 3D ultrasound may be predictive of SGA neonates.

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Placental Morphometry Determines the Birth Weight

Abstract: Placental morphometry: weight, surface area, volume and sex of the baby determined the birth weight efficiently to initiate the corrective measures for planning better maternal care and to pacify mothers and their relatives.

Cited by 14 publications

References 10 publications

Birth Weights in Sickle Cell Disease Pregnancies: A Cohort Study

Birth Weights in Sickle Cell Disease Pregnancies: A Cohort Study

Third trimester placental volume and biometry measurement: A method-development study

Second-Trimester Placental Volume and Vascular Indices in the Prediction of Small-for-Gestational-Age Neonates

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