Growth Velocity of Some Fetal Parameters

Am, Guihard-Costa; Jc, Larroche

doi:10.1159/000243888

Cited by 15 publications

(6 citation statements)

References 6 publications

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“…Intrauterine stunting and wasting are believed to have different timing. Length gain and weight gain peak at around 19 and 34 wk of gestation, respectively (5,21). Shortness at birth may therefore have an early onset of growth retardation, whereas a low ponderal index at birth may have a later onset in the third trimester.…”

Section: Discussionmentioning

confidence: 99%

Size at birth and neonatal and postneonatal mortality

2002

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Section: Discussionmentioning

confidence: 99%

Size at birth and neonatal and postneonatal mortality

2002

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“…Thus, by approximately 28 weeks, linear growth has reached 70% of term length, compared to 32% for weight (WHO, 1995) and 29% for body fat (Widdowson et al, 1979). Apart from these differences observed at birth, however, the precise timing of the peak in fetal linear growth and weight gain velocity is not known, due to the reliance on cross-sectional data on fetal size at birth (Cronk, 1983) and/or ultrasound studies of fetuses that died in the perinatal period (Guihard-Costa et al, 1991, 1992. For instance, several studies have reported different patterns of growth in cross-sectional samples compared to those based on ultrasound measurements of fetuses (Hediger et al, 1995;Goldenberg et al, 1985;Ott, 1993, Bernstein et al, 1994, 1997.…”

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The timing hypothesis and body proportionality of the intra-uterine growth retarded infant

1999

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Intra‐uterine growth retardation (IUGR) is a heterogeneous designation, as seen in the fact that neonatal morbidity and mortality differ for IUGR infants that are disproportionate vs proportionate based on the ponderal index (weight/height3). Much less is known, however, concerning the etiology of these two forms. This study tests the hypothesis that the form of IUGR (proportionate vs disproportionate) is related to the timing of stress during gestation, specifically, that linear growth is compromised by second trimester stress and the ponderal index is compromised by third trimester stress. This hypothesis is tested using data on 755 full‐term mother‐infant pairs studied prospectively in rural northern Malawi where the seasonal stress of the pre‐harvest rainy season (PHRS) is a regular occurrence. The results indicate that exposure to PHRS in the second trimester is not associated with weight, length, or the ponderal index at birth. Exposure to PHRS in the third trimester is associated with diminished birth weight and length, but not ponderal index. The results do not support the timing hypothesis, at least as previously framed in the literature, and suggest the possibility that linear growth may precede or be more sensitive to prenatal stress than the ponderal index. Am. J. Hum. Biol. 11:638–646, 1999. © 1999 Wiley‐Liss, Inc.

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“…We compared the median fetal velocity curves of our study with those of several previous studies (Fig. 3 ), including the NICHD fetal growth study [ 18 ], INTERGROWTH–21st project [ 19 ], and Guihard–Costa et al [ 15 , 16 ].…”

Section: Resultsmentioning

confidence: 99%

Fetal growth velocity references from a Chinese population–based fetal growth study

Gong

Zhao

et al. 2021

BMC Pregnancy Childbirth

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Background Fetal growth velocity standards have yet to be established for the Chinese population. This study aimed to establish such standards suitable for the Chinese population. Methods We performed a multicenter, population–based longitudinal cohort study including 9075 low–risk singleton pregnant women. Data were collected from the clinical records of 24 hospitals in 18 provinces of China. Demographic characteristics, reproductive history, fetal ultrasound measurements, and perinatal outcome data were collected. The fetal ultrasound measurements included biparietal diameter (BPD), abdominal circumference (AC), head circumference (HC), and femur diaphysis length (FDL). We used linear mixed models with cubic splines to model the trajectory of four ultrasound parameters and estimate fetal weight. Fetal growth velocity was determined by calculating the first derivative of fetal size curves. We also used logistic regression to estimate the association between fetal growth velocities in the bottom 10th percentile and adverse perinatal outcomes. Results Fetal growth velocity was not consistent over time or among individuals. The estimated fetal weight (EFW) steadily increased beginning at 12 gestational weeks and peaked at 35 gestational weeks. The maximum velocity was 211.71 g/week, and there was a steady decrease in velocity from 35 to 40 gestational weeks. The four ultrasound measurements increased in the early second trimester; BPD and HC peaked at 13 gestational weeks, AC at 14 gestational weeks, and FDL at 15 gestational weeks. BPD and HC also increased from 19 to 24 and 19 to 21 gestational weeks, respectively. EFW velocity in the bottom 10th percentile indicated higher risks of neonatal complications (odds ratio [OR] = 2.23, 95% confidence interval [CI]: 1.79–2.78) and preterm birth < 37 weeks (OR = 3.68, 95% CI: 2.64–5.14). Sensitivity analyses showed that EFW velocity in the bottom 10th percentile was significantly associated with more adverse pregnancy outcomes for appropriate–for–gestational age neonates. Conclusions We established fetal growth velocity curves for the Chinese population based on real–world clinical data. Our findings demonstrated that Chinese fetal growth patterns are somewhat different from those of other populations. Fetal growth velocity could provide more information to understand the risk of adverse perinatal outcomes, especially for appropriate–for–gestational age neonates.

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Growth Velocity of Some Fetal Parameters

Cited by 15 publications

References 6 publications

Size at birth and neonatal and postneonatal mortality

Size at birth and neonatal and postneonatal mortality

The timing hypothesis and body proportionality of the intra-uterine growth retarded infant

Fetal growth velocity references from a Chinese population–based fetal growth study

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