Evaluation of an Optimal Gestational Age Cut-Off for the Definition of Early- and Late-Onset Fetal Growth Restriction

2013 ◽  
Vol 36 (2) ◽  
pp. 99-105 ◽  
Author(s):  
Stefan Savchev ◽  
Francesc Figueras ◽  
Magda Sanz-Cortes ◽  
Monica Cruz-Lemini ◽  
Stefania Triunfo ◽  
...  
Keyword(s):  
Fetal Growth ◽  
Gestational Age ◽  
Fetal Growth Restriction ◽  
Late Onset ◽  
Growth Restriction ◽  
Definition Of

scholarly journals miR-16-5p, miR-103-3p, and miR-27b-3p as Early Peripheral Biomarkers of Fetal Growth Restriction

2021 ◽  
Vol 9 ◽  
Author(s):  
Salvatore Tagliaferri ◽  
Pasquale Cepparulo ◽  
Antonio Vinciguerra ◽  
Marta Campanile ◽  
Giuseppina Esposito ◽  
...  
Keyword(s):  
Fetal Growth ◽  
Gestational Age ◽  
Fetal Growth Restriction ◽  
Late Onset ◽  
Maternal Blood ◽  
Growth Restriction ◽  
Therapeutic Interventions ◽  
Control Group ◽  
Fetal Hypoxia ◽  
Blood Samples

Current tests available to diagnose fetal hypoxia in-utero lack sensitivity thus failing to identify many fetuses at risk. Emerging evidence suggests that microRNAs derived from the placenta circulate in the maternal blood during pregnancy and may be used as non-invasive biomarkers for pregnancy complications. With the intent to identify putative markers of fetal growth restriction (FGR) and new therapeutic druggable targets, we examined, in maternal blood samples, the expression of a group of microRNAs, known to be regulated by hypoxia. The expression of microRNAs was evaluated in maternal plasma samples collected from (1) women carrying a preterm FGR fetus (FGR group) or (2) women with an appropriately grown fetus matched at the same gestational age (Control group). To discriminate between early- and late-onset FGR, the study population was divided into two subgroups according to the gestational age at delivery. Four microRNAs were identified as possible candidates for the diagnosis of FGR: miR-16-5p, miR-103-3p, miR-107-3p, and miR-27b-3p. All four selected miRNAs, measured by RT-PCR, resulted upregulated in FGR blood samples before the 32nd week of gestation. By contrast, miRNA103-3p and miRNA107-3p, analyzed between the 32nd and 37th week of gestation, showed lower expression in the FGR group compared to aged matched controls. Our results showed that measurement of miRNAs in maternal blood may form the basis for a future diagnostic test to determine the degree of fetal hypoxia in FGR, thus allowing the start of appropriate therapeutic interventions to alleviate the burden of this disease.

Neurosonographic Assessment of the Corpus Callosum as Imaging Biomarker of Abnormal Neurodevelopment in Late-Onset Fetal Growth Restriction

2015 ◽  
Vol 37 (4) ◽  
pp. 281-288 ◽  
Author(s):  
Gabriela Egaña-Ugrinovic ◽  
Stefan Savchev ◽  
Carolina Bazán-Arcos ◽  
Bienvenido Puerto ◽  
Eduard Gratacós ◽  
...  
Keyword(s):  
Corpus Callosum ◽  
Fetal Growth ◽  
Gestational Age ◽  
Fetal Growth Restriction ◽  
Late Onset ◽  
Developmental Differences ◽  
Growth Restriction ◽  
Imaging Biomarker ◽  
Average Growth ◽  
Entire Cohort

Objective: To explore corpus callosum (CC) developmental differences by ultrasound in late-onset small fetuses compared with adequate for gestational age (AGA) controls. Study Design: Ninety four small (estimated fetal weight <10th centile) and 71 AGA fetuses were included. Small fetuses were further subdivided into fetal growth restriction (IUGR, n = 64) and small for gestational age (SGA, n = 30) based on poor perinatal outcome factors, that is, birth weight <3rd centile and/or abnormal cerebroplacental ratio and/or uterine artery Doppler. The entire cohort was scanned to assess CC by transvaginal neurosonography obtaining axial, coronal and midsagittal images. CC length, thickness, total area and the areas after a subdivision in 7 portions were evaluated by semiautomatic software. Furthermore, the weekly average growth of the CC in each study group was calculated and compared. Results: Small fetuses showed significantly shorter (small fetuses: 0.49 vs. AGA: 0.52; p < 0.01) and smaller CC (1.83 vs. 2.03; p < 0.01) with smaller splenium (0.47 vs. 0.55; p < 0.01) compared to controls. The CC growth rate was also reduced when compared to controls. Changes were more prominent in small fetuses with abnormal cerebroplacental Doppler suggesting fetal growth restriction. Conclusions: Neurosonographic assessment of CC showed significantly altered callosal development, suggesting in-utero brain reorganization in small fetuses. This data support the potential value of CC assessment by US to monitor brain development in fetuses at risk.

Comparison of fetal cardiac functions between small-for-gestational age fetuses and late-onset growth-restricted fetuses

2019 ◽  
Vol 47 (8) ◽  
pp. 879-884
Author(s):  
Başak Kaya ◽  
Ahmet Tayyar ◽  
Deniz Kanber Açar ◽  
Serdar Kaya
Keyword(s):  
Fetal Growth ◽  
Gestational Age ◽  
Small For Gestational Age ◽  
Fetal Growth Restriction ◽  
Late Onset ◽  
Growth Restriction ◽  
Doppler Imaging ◽  
Control Group ◽  
Ejection Time ◽  
Cardiac Functions

Abstract Background This study aimed to investigate fetal cardiac functions by spectral tissue Doppler imaging (s-TDI) in pregnancies complicated with late-onset fetal growth restriction (LO-FGR) and small-for-gestational age (SGA). Methods Forty pregnancies complicated with late-onset FGR and 40 pregnancies complicated with SGA between the 34th and 37th weeks of gestation were enrolled in this study. Forty gestational age-matched pregnant women with no obstetrics complication were randomly selected as a control group. Small fetuses were classified as fetal growth restriction or SGA according to estimated fetal weight (EFW), umbilical artery pulsatility index (PI), cerebroplacental ratio (CPR) and uterine artery PI. s-TDI measurements were obtained at the right atrioventricular valve annulus. Results SGA and LO-FGR fetuses had significantly lower A′ and S′ values, and higher E′/A′ ratio than the control group (P < 0.001). In comparison to controls, significantly prolonged isovolumetric contraction time (ICT′) and isovolumetric relaxation time (IRT′) and, significantly shortened ejection time (ET′) were observed in fetuses with SGA and LO-FGR. Increased myocardial performance index (MPI′) values were also found in fetuses with SGA and LO-FGR compared to controls. Conclusion The signs of cardiac dysfunction were observed both in fetuses with SGA and LO-FGR. The fetal cardiac function assessment with s-TDI could be a valuable method in the diagnosis of true growth restricted fetuses and in the management of these fetuses.

INTRAUTERINE GROWTH RETARDATION - A REVIEW ARTICLE

2018 ◽  
pp. 184-195
Author(s):  
Minh Son Pham ◽  
Vu Quoc Huy Nguyen ◽  
Dinh Vinh Tran
Keyword(s):  
Fetal Growth ◽  
Gestational Age ◽  
Small For Gestational Age ◽  
Fetal Growth Restriction ◽  
Growth Restriction ◽  
Growth Potential ◽  
National Guidelines ◽  
Intrauterine Growth ◽  
No Gold Standard

Small for gestational age (SGA) and fetal growth restriction (FGR) is difficult to define exactly. In this pregnancy condition, the fetus does not reach its biological growth potential as a consequence of impaired placental function, which may be because of a variety of factors. Fetuses with FGR are at risk for perinatal morbidity and mortality, and poor long-term health outcomes, such as impaired neurological and cognitive development, and cardiovascular and endocrine diseases in adulthood. At present no gold standard for the diagnosis of SGA/FGR exists. The first aim of this review is to: summarize areas of consensus and controversy between recently published national guidelines on small for gestational age or fetal growth restriction; highlight any recent evidence that should be incorporated into existing guidelines. Another aim to summary a number of interventions which are being developed or coming through to clinical trial in an attempt to improve fetal growth in placental insufficiency. Key words: fetal growth restriction (FGR), Small for gestational age (SGA)

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