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1.
Hum Mol Genet ; 31(16): 2669-2677, 2022 08 23.
Artigo em Inglês | MEDLINE | ID: mdl-35244708

RESUMO

Telomeres protect chromosome ends and control cell division and senescence. During organogenesis, telomeres need to be long enough to ensure the cell proliferation necessary at this stage of development. Previous studies have shown that telomere shortening is associated with growth retardation and congenital malformations. However, these studies were performed in newborns or postnatally, and data on telomere length (TL) during the prenatal period are still very limited. We measured TL using quantitative PCR in amniotic fluid (AF) and chorionic villi (CV) samples from 69 control fetuses with normal ultrasound (52 AF and 17 CV) and 213 fetuses (165 AF and 48 CV) with intrauterine growth retardation (IUGR) or congenital malformations diagnosed by ultrasound. The samples were collected by amniocentesis at the gestational age (GA) of 25.0 ± 5.4 weeks and by CV biopsy at 18.1 ± 6.3 weeks. In neither sample type was TL influenced by GA or fetal sex. In AF, a comparison of abnormal versus normal fetuses showed a significant telomere shortening in cases of IUGR (reduction of 34%, P < 10-6), single (29%, P < 10-6) and multiple (44%, P < 10-6) malformations. Similar TL shortening was also observed in CV from abnormal fetuses but to a lesser extent (25%, P = 0.0002; 18%, P = 0.016; 20%, P = 0.004, respectively). Telomere shortening was more pronounced in cases of multiple congenital anomalies than in fetuses with a single malformation, suggesting a correlation between TL and the severity of fetal phenotype. Thus, TL measurement in fetal samples during pregnancy could provide a novel predictive marker of pathological development.


Assuntos
Desenvolvimento Fetal , Encurtamento do Telômero , Biomarcadores , Feminino , Retardo do Crescimento Fetal/diagnóstico , Retardo do Crescimento Fetal/genética , Humanos , Gravidez , Telômero/genética , Encurtamento do Telômero/genética
2.
Prenat Diagn ; 42(1): 118-135, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34894355

RESUMO

OBJECTIVE: Terminal 6q deletion is a rare genetic condition associated with a neurodevelopmental disorder characterized by intellectual disability and structural brain anomalies. Interestingly, a similar phenotype is observed in patients harboring pathogenic variants in the DLL1 gene. Our study aimed to further characterize the prenatal phenotype of this syndrome as well as to attempt to establish phenotype-genotype correlations. METHOD: We collected ultrasound findings from 22 fetuses diagnosed with a pure 6qter deletion. We reviewed the literature and compared our 22 cases with 14 fetuses previously reported as well as with patients with heterozygous DLL1 pathogenic variants. RESULTS: Brain structural alterations were observed in all fetuses. The most common findings (>70%) were cerebellar hypoplasia, ventriculomegaly, and corpus callosum abnormalities. Gyration abnormalities were observed in 46% of cases. Occasional findings included cerebral heterotopia, aqueductal stenosis, vertebral malformations, dysmorphic features, and kidney abnormalities. CONCLUSION: This is the first series of fetuses diagnosed with pure terminal 6q deletion. Based on our findings, we emphasize the prenatal sonographic anomalies, which may suggest the syndrome. Furthermore, this study highlights the importance of chromosomal microarray analysis to search for submicroscopic deletions of the 6q27 region involving the DLL1 gene in fetuses with these malformations.


Assuntos
Proteínas de Ligação ao Cálcio/análise , Transtornos Cromossômicos/complicações , Proteínas de Membrana/análise , Adulto , Proteínas de Ligação ao Cálcio/genética , Transtornos Cromossômicos/genética , Cromossomos Humanos Par 6/genética , Feminino , Humanos , Proteínas de Membrana/genética , Fenótipo , Gravidez , Estudos Retrospectivos , Trissomia/genética , Virulência/genética , Virulência/fisiologia
3.
Prenat Diagn ; 38(7): 482-492, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29577352

RESUMO

INTRODUCTION: Lung hypoplasia and pulmonary arterial hypertension in congenital diaphragmatic hernia lead to a high perinatal mortality. Although sustained fetoscopic tracheal occlusion (TO) improves lung development, a major side effect is abnormal pneumocyte differentiation. This study evaluated the potential ability of intratracheal retinoic acid (RA) administration to reduce adverse effects of sustained TO in a rabbit model of diaphragmatic hernia. METHODS: A left diaphragmatic defect was created on day 23 in time-dated pregnant rabbits. On day 28, the same rabbits underwent sham surgery or TO, with an injection of empty or RA-loaded liposomes. On day 30, the fetuses were harvested, and the lungs were processed for histology, immunohistochemistry, and gene expression quantification. RESULTS: A tracheal RA injection at the time of TO had no effect on the lung-to-body-weight ratio, radial alveolar count or lung connective tissue composition. Retinoic acid plus TO had synergic effects on vascular measurements, proportional medial thickness, and endothelin-1 receptor type-A gene expression. The most noticeable effect was recovery of normal pneumocyte differentiation. CONCLUSION: Retinoic acid plus TO prevented abnormal pneumocyte differentiation and seemed to have a beneficial effect on pulmonary vascularization.


Assuntos
Antineoplásicos/administração & dosagem , Doenças Fetais/cirurgia , Hérnia Diafragmática/terapia , Pulmão/efeitos dos fármacos , Traqueia/cirurgia , Tretinoína/administração & dosagem , Animais , Apoptose/efeitos dos fármacos , Colágeno/metabolismo , Elastina/metabolismo , Feminino , Fetoscopia , Pulmão/embriologia , Pulmão/metabolismo , Gravidez , Surfactantes Pulmonares/metabolismo , Coelhos
4.
Prenat Diagn ; 38(7): 523-530, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29740835

RESUMO

OBJECTIVE: To determine the prognostic value of fetal Doppler and echocardiographic parameters for intrauterine fetal demise (IUFD) within 24 hours and within 1 week after laser coagulation in monochorionic pregnancies complicated by twin-twin transfusion syndrome. METHOD: This retrospective study correlated the preoperative hemodynamic and echocardiography parameters to the outcome in fetuses with twin-twin transfusion syndrome undergoing laser therapy. RESULTS: One hundred and twelve laser coagulations were performed between February 2006 and June 2015. The total (single and double) IUFD rate was 27.7%. Further, 59% of IUFD occurred within 24 hours and 74.4% occurred within 1 week after laser. The following were associated to IUFD within 24 hours: the middle cerebral arterial pulsatility index in the donor, abnormal umbilical artery (UA) end diastolic flow, increased middle cerebral artery peak systolic velocity, and right ventricular myocardial performance index (RV-MPI) z-score in the recipient. For IUFD within 1 week were the pulsatility index in the donor UA and the recipient abnormalities in UA, ductus venosus, middle cerebral artery-peak systolic velocity, and RV-MPI z-score. CONCLUSION: Following laser was early IUFD that was associated with Doppler findings suggesting donor cerebroplacental redistribution, and recipient overload cardiomyopathy, such as abnormal ductus venosus and UA Dopplers as well as an increase of RV-MPI.


Assuntos
Morte Fetal , Transfusão Feto-Fetal/diagnóstico por imagem , Fotocoagulação a Laser/estatística & dados numéricos , Adulto , Ecocardiografia Doppler , Feminino , Coração Fetal/diagnóstico por imagem , Transfusão Feto-Fetal/mortalidade , Transfusão Feto-Fetal/terapia , Fetoscopia , Humanos , Fotocoagulação a Laser/efeitos adversos , Gravidez , Gravidez de Gêmeos , Quebeque/epidemiologia , Estudos Retrospectivos , Gêmeos Monozigóticos , Ultrassonografia Pré-Natal
5.
Fetal Diagn Ther ; 44(2): 135-141, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-28918426

RESUMO

INTRODUCTION: The objective was to assess the prognostic value of the systolic flow through the aortic isthmus in monochorionic pregnancies complicated by twin-twin transfusion syndrome (TTTS) treated by placental laser ablation. MATERIAL AND METHODS: Fetal echocardiography and outcome data of 105 cases of TTTS treated by laser photocoagulation of placental anastomoses were reviewed. Hemodynamic parameters were collected before and after treatment. The isthmic systolic index (ISI) was calculated as the peak systolic velocity/systolic nadir ratio. RESULTS: A total of 105 laser coagulations were studied. Fetal echocardiography pre- and post-laser were available in 68 cases, including 55 with data on aortic isthmic Doppler. Survival rates were 17, 22, and 61% for 0, 1, or 2 twins, respectively. At least 1 twin was delivered alive in 83% of the pregnancies. The mean gestational age at surgery was 21 weeks (range 16-26). Median ISI values were similar for donor and recipient twins, before and after laser ablation (all p > 0.05). A lower recipient ISI before laser was related to early recipient demise within 24 h (p = 0.04). DISCUSSION: A lower ISI before placental laser ablation for TTTS is associated with postoperative demise of the recipient twin.


Assuntos
Aorta/diagnóstico por imagem , Velocidade do Fluxo Sanguíneo , Morte Fetal , Transfusão Feto-Fetal/diagnóstico por imagem , Transfusão Feto-Fetal/cirurgia , Fotocoagulação a Laser/efeitos adversos , Gêmeos , Aorta/fisiologia , Velocidade do Fluxo Sanguíneo/fisiologia , Ecocardiografia Doppler , Feminino , Morte Fetal/etiologia , Fetoscopia/métodos , Humanos , Fotocoagulação a Laser/métodos , Valor Preditivo dos Testes , Gravidez , Resultado do Tratamento
6.
Prenat Diagn ; 37(5): 427-434, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-28152192

RESUMO

INTRODUCTION: Tracheal occlusion (TO) is an investigational therapy for severe congenital diaphragmatic hernia that decreases pulmonary hypoplasia, but sustained TO also induces deficient surfactant synthesis. Intramuscular maternal administration of retinoic acid (RA) in a surgical rabbit model of congenital diaphragmatic hernia showed a beneficial effect on lung maturation. We evaluated the potential of RA delivery into the trachea and studied the combined effects of TO and RA on normal lung development. METHODS: Experiments were performed on normal rabbit fetuses. Liposomes and capric triglyceride (Miglyol® ), alone and with RA, were administered in the trachea just before TO (d26). Lung morphology and surfactant production were studied at term (d30). RESULTS: Tracheal occlusion increased lung weight and enhanced alveolar development but increased apoptotic activity and decreased surfactant expression. Tracheal injection of RA improved surfactant production to levels of normal controls. CONCLUSION: We established the potential of liposome and Miglyol as RA vehicle for delivering this bioactive molecule in the fetal airways. Tracheal RA injection seems to oppose the effects of TO in fetuses with normal lungs. © 2017 John Wiley & Sons, Ltd.


Assuntos
Obstrução das Vias Respiratórias , Pulmão/efeitos dos fármacos , Pulmão/embriologia , Traqueia/patologia , Tretinoína/farmacologia , Obstrução das Vias Respiratórias/embriologia , Obstrução das Vias Respiratórias/patologia , Animais , Feminino , Maturidade dos Órgãos Fetais/efeitos dos fármacos , Pulmão/metabolismo , Gravidez , Surfactantes Pulmonares/metabolismo , Coelhos
7.
Am J Physiol Lung Cell Mol Physiol ; 308(2): L147-57, 2015 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-25416379

RESUMO

Congenital diaphragmatic hernia (CDH) is a common life-threatening congenital anomaly resulting in high rates of perinatal death and neonatal respiratory distress. Some of the nonisolated forms are related to single-gene mutations or genomic rearrangements, but the genetics of the isolated forms (60% of cases) still remains a challenging issue. Retinoid signaling (RA) is critical for both diaphragm and lung development, and it has been hypothesized that subtle disruptions of this pathway could contribute to isolated CDH etiology. Here we used time series of normal and CDH lungs in humans, in nitrofen-exposed rats, and in surgically induced hernia in rabbits to perform a systematic transcriptional analysis of the RA pathway key components. The results point to CRPBP2, CY26B1, and ALDH1A2 as deregulated RA signaling genes in human CDH. Furthermore, the expression profile comparisons suggest that ALDH1A2 overexpression is not a primary event, but rather a consequence of the CDH-induced lung injury. Taken together, these data show that RA signaling disruption is part of CDH pathogenesis, and also that dysregulation of this pathway should be considered organ specifically.


Assuntos
Sistema Enzimático do Citocromo P-450/biossíntese , Diafragma/embriologia , Hérnias Diafragmáticas Congênitas/metabolismo , Retinal Desidrogenase/biossíntese , Vitamina A/metabolismo , Família Aldeído Desidrogenase 1 , Animais , Linhagem Celular , Sistema Enzimático do Citocromo P-450/genética , Diafragma/patologia , Modelos Animais de Doenças , Feminino , Regulação da Expressão Gênica no Desenvolvimento , Hérnias Diafragmáticas Congênitas/genética , Hérnias Diafragmáticas Congênitas/patologia , Humanos , Pulmão/embriologia , Masculino , Coelhos , Ratos , Retinal Desidrogenase/genética , Ácido Retinoico 4 Hidroxilase , Proteínas Celulares de Ligação ao Retinol/biossíntese , Proteínas Celulares de Ligação ao Retinol/genética , Transdução de Sinais/genética , Vitamina A/genética
9.
Artigo em Inglês | MEDLINE | ID: mdl-36573918

RESUMO

Background: Gestational diabetes (GD) is associated with an increase in maternal and fetal morbidity. The risk factors involved have been clearly identified but no prevention strategies have yet provided robust evidence of their efficacy. Myoinositol has insulin sensitization properties and is of potential interest in the treatment of the disorder. Aim: The aim of this work was to assess the efficacy of myoinositol supplementation during pregnancy to prevent GD in patients with known risk factors. Method: A systematic literature review was performed on studies comparing the effects of myoinositol supplementation and placebo on the occurrence of GD in at-risk pregnant women. The main judgement criterion was diagnosis of GD between 24 and 28 gestational weeks by an oral glucose tolerance test. The secondary judgement criteria were the occurrence of maternal fetal complications and the need to initiate insulin treatment to manage GD. Results: Nine studies were included in the meta-analysis. The results showed a significantly higher risk of GD in patients on placebo than in those receiving myoinositol (RR â€‹= â€‹2.58, CI 95%: 1.68 to 3.97, p â€‹< â€‹0.0001) but wide variations between studies (I2 â€‹= â€‹71.94%, p â€‹< â€‹0.001). And the risk of prematurity was significantly greater in the children of mothers on placebo (RR: 2.15, IC 95%: 1.32 to 3.20, p â€‹= â€‹0.002). Conclusion: Myoinositol supplementation taken from the beginning of pregnancy reduces the incidence of GD and could be of interest at a dose of 4 â€‹g/day as a prevention strategy for patients with identified risk factors.

10.
J Matern Fetal Neonatal Med ; 36(2): 2266092, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37840223

RESUMO

OBJECTIVES: The current recommended treatment for severe fetal anemia is in utero transfusion (IUT). During this procedure, the evaluation of the necessary volume of transfused blood is based on regular measurement of fetal hemoglobin (FHb) concentration. The gold standard measurement is performed in the biology laboratory. A rapid medical test such as HemoCue® is an effective way to predict FHb concentration. It would reduce the time to obtain results and therefore the procedure duration. To evaluate the accuracy of HemoCue® to measure FHb during IUT, we compared Hb levels obtained by HemoCue® and by our biology laboratory. METHODS: This retrospective study involved all pregnant women who had undergone an IUT in the university hospital of Clermont-Ferrand, France, during the period from 1 January 2010 to 6 June 2021. The FHb level was evaluated by two methods, a rapid medical test, HemoCue®, and a standard method in the biology laboratory. RESULTS: We obtained 244 pairs of results from HemoCue® and our laboratory, of 90 IUT procedures. The correlation between the two sets of results was excellent, with Lin's concordance correlation coefficient of 0.979. However, we established that the measurements were not significantly modified by IUT number, puncture time, cause of fetal anemia, estimated fetal weight, gestational age, and delay between two IUT or middle cerebral artery peak systolic velocity values. CONCLUSION: Our results allowed to extend the relevance of FHb measurements by HemoCue® during IUT.


Assuntos
Anemia , Doenças Fetais , Humanos , Feminino , Gravidez , Hemoglobina Fetal/análise , Estudos Retrospectivos , Anemia/diagnóstico , Anemia/terapia , Doenças Fetais/diagnóstico , Doenças Fetais/terapia , Transfusão de Sangue , Transfusão de Sangue Intrauterina , Hemoglobinas/análise
11.
J Clin Med ; 12(4)2023 Feb 14.
Artigo em Inglês | MEDLINE | ID: mdl-36836056

RESUMO

We set out to identify factors of non-compliance with a protocol for the oral administration of misoprostol 25 µg (Angusta®) every 2 h (up to eight tablets), for the induction of labor (IOL). We conducted a retrospective study on IOL at term, on singleton pregnancies from 2019 to 2021, in a university hospital. The study included 195 patients, comprising 144 compliant protocols. Pain was statistically more frequent in the non-compliance group (92.2% vs. 62.5%, p < 0.001), and when a midwife was unavailable (15.7% vs. 0.7%, p < 0.001). A multivariable analysis found factors of good response (defined as going into labor before the administration of the median number of tablets, i.e., six) to be an indication for PROM (OR: 12.03, 95% CI: 5.42-26.71), and gestational age at induction (OR: 1.54, 95% CI: 1.19-2.01), independently of BMI, initial Bishop score, and parity. Patients with pain who were able to follow the protocol delivered 9 h earlier than patients with pain who interrupted the protocol and 16 h earlier than patients who experienced no pain. We identified two key elements that favored compliance: (i) providing the next tablet in advance; and (ii) offering patients early epidural analgesia when in pain in order to continue the protocol and go into labor promptly.

12.
J Clin Med ; 12(8)2023 Apr 21.
Artigo em Inglês | MEDLINE | ID: mdl-37109371

RESUMO

We conducted a retrospective case-control study in patients presenting a perineal tear (second degree or higher) or episiotomy complicated by wound breakdown during maternity stay to identify risk factors associated with wound breakdown in early postpartum with a view to improving the quality of care. We collected ante- and intrapartum characteristics and outcomes at the postpartum visit. In all, 84 cases and 249 control subjects were included. In univariate analysis, primiparity, absence of history of vaginal delivery, a longer second phase of labour, instrumental delivery, and a higher degree of laceration emerged as risk factors for early perineal suture breakdown postpartum. Gestational diabetes, peripartum fever, streptococcus B, and suture technique did not emerge as risk factors for perineal breakdown. Multivariate analysis confirmed that instrumental delivery (OR = 2.18 [1.07; 4.41], p = 0.03) and a longer second phase of labour (OR = 1.72 [1.23; 2.42], p = 0.001) were risk factors for early perineal suture breakdown.

13.
Eur J Obstet Gynecol Reprod Biol ; 286: 28-34, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37182292

RESUMO

BACKGROUND: Monochorionic (MC) twin pregnancies may be complicated by placental pathologies that impact fetal cardiac function, such as twin-twin transfusion syndrome (TTTS) and selective intrauterine growth-restriction (sIUGR). In the TTTS, the unbalanced blood flow through placental anastomoses lead a recipient volume overload, hypertension and hypertrophic cardiomyopathy and the donor twin experiences hypovolemia and hypertension due to increased placental resistance and poor renal perfusion. When MC pregnancies were complicated by sIUGR, the increase of placental resistances lead to complex fetal compensatory mechanisms with redistribution of cardiac output to vital organs. Increased placental vascular resistances, hypoxia and hemodynamic compensation mechanisms lead to higher pre and/or afterload for both ventricles, right cardiac failure and eventually left cardiac failure observed just before fetal death. OBJECTIVES: The purpose of this study was to describe the anomalies of umbilical, ductal and aortic isthmic Doppler as well as left and right myocardial performance index (MPI) across various clinical phenotypes of MC twin pregnancies, uncomplicated or complicated by TTTS or sIUGR, in order to help differentiating these conditions and to improve the understanding of TTTS and sIUGR pathophysiology. STUDY DESIGN: Aortic isthmic systolic index (ISI), umbilical artery pulsatility index (UAPI), ductus venosus pulsatility index (DVPI), and MPI were studied in uncomplicated MC twins (control group) and cases of sIUGR or TTTS. RESULTS: The measurements were obtained in 113 pregnancies (24 uncomplicated, 22 sIUGR, 51 TTTS). In comparison with controls, the sIUGR smaller twin sets had lower ISI and higher UAPI, and the larger twin had higher ISI. The TTTS donor and recipient had lower ISI, higher UAPI and DVPI. Compared to the co-twin, the ISI values were lower in the sIUGR smaller twin and the TTTS donor had lower ISI and MPI. Comparing TTTS and sIUGR, the recipient had higher DVPI and MPI than the sIUGR larger twin. CONCLUSIONS: The Doppler anomalies observed in the smaller twin reflected increased placental blood flow resistance, presumably due to abnormal feto-fetal transfusion in TTTS and to unequal placental sharing in sIUGR. Early hemodynamic changes suggestive of cardiac overload in the recipient twin may help to differentiate TTTS and sIUGR.


Assuntos
Transfusão Feto-Fetal , Insuficiência Cardíaca , Feminino , Humanos , Gravidez , Retardo do Crescimento Fetal/diagnóstico por imagem , Coração Fetal/diagnóstico por imagem , Transfusão Feto-Fetal/diagnóstico por imagem , Transfusão Feto-Fetal/complicações , Insuficiência Cardíaca/complicações , Placenta/diagnóstico por imagem , Gravidez de Gêmeos , Gêmeos Monozigóticos , Ultrassonografia Pré-Natal
14.
Gynecol Obstet Fertil Senol ; 51(10): 448-454, 2023 10.
Artigo em Francês | MEDLINE | ID: mdl-37634804

RESUMO

OBJECTIVES: The Shock Index (SI) is used in emergency medicine to assess the severity of active bleeding and in the postpartum context for postpartum haemorrhage (PPH). We investigated the diagnostic value of haemodynamic parameters (SI, heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP) and mean arterial pressure (MAP)) in predicting subsequent use of uterotonic sulprostone treatment. METHODS: This was a retrospective study including parturients with PPH ≥ 500mL between January 2017 and December 2018. Hemodynamic parameters at the diagnosis of PPH were compared according to whether the patient required subsequent sulprostone treatment (sulprostone(+) group) or not (sulprostone(-) group). RESULTS: We included in the analysis 147 patients. The SI was significantly higher in the sulprostone(+) group (0.92±0.28 vs. 0.83±0.22; p=0.04). The SBP (107.2±17.5 vs. 113.8±17.7mmHg; p=0.03), DBP (56.8±12,2 vs. 61.5±13,2mmHg; p=0.04), MAP (73.6±12.6 vs. 78.5±13.4mmHg; p=0.03) were significantly lower in the same group. No difference between AUC of these parameters to predict the use of sulprostone was found (AUC between 0.59 and 0.61). No significant difference was found for the HR between the two groups. CONCLUSION: The diagnostic value of SI appeared to be low and similar to other haemodynamic parameters in predicting the use of sulprostone.


Assuntos
Hemorragia Pós-Parto , Choque , Feminino , Humanos , Hemorragia Pós-Parto/diagnóstico , Hemorragia Pós-Parto/terapia , Estudos Retrospectivos , Dinoprostona , Choque/diagnóstico , Choque/tratamento farmacológico
15.
J Clin Med ; 12(17)2023 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-37685773

RESUMO

We conducted a prospective double-blind study to compare two vaginal diagnostic methods in singleton pregnancies with threatened preterm labor (TPL) at the University Hospital of Clermont-Ferrand (France) from August 2018 to December 2020. Our main objective was to compare the diagnostic capacity at admission, in terms of positive predictive value (PPV) and negative predictive value (NPV), of Premaquick® (combined detection of IL-6/total IGFBP-1/native IGFBP-1) and QuikCheck fFN™ (fetal fibronectin) for delivery within 7 days in cases of TPL. We included 193 patients. Premaquick® had a sensitivity close to 89%, equivalent to QuikCheck fFN™, but a higher statistical specificity of 49.5% against 38.6% for QuikCheck fFN™. We found no superiority of Premaquick® over QuickCheck fFN™ in terms of PPV (6.6% vs. 7.9%), with NPV being equivalent in predicting childbirth within 7 days in cases of TPL (98.6% vs. 98.9%). Nevertheless, the combination of positive native and total IGFBP-1 and the combination of all three positive markers were associated with a higher PPV. Our results, though non-significant, support this combined multiple-biomarker approach to improve testing in terms of predictive values.

16.
Clin Chim Acta ; 551: 117594, 2023 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-37832906

RESUMO

PURPOSE: Cytogenetic analysis provides important information for prenatal decision-making and genetic counseling. Optical genome mapping (OGM) has demonstrated its performances in retrospective studies. In our prospective study, we assessed the quality of DNA obtained from cultures of amniotic fluid (AF) and chorionic villi (CV) and evaluated the ability of OGM to detect all clinically relevant aberrations identified by standard methods. METHODS: A total of 37 prenatal samples from pregnancies with a fetal anomaly on ultrasound were analyzed prospectively by OGM between January 1, 2021 and June 31, 2022. OGM results were interpreted blindly and compared to the results obtained by standard techniques. RESULTS: OGM results were interpretable in 92% of samples. We observed 100% concordance between OGM and karyotype and/or chromosomal microarray results. In addition, OGM identified a median of 30 small (<100 kb) structural variations per case with the involvement of 12 OMIM genes, of which 3 were OMIM morbid genes. CONCLUSION: This prospective study showed OGM performed well in detecting genomic alterations in cell cultures from prenatal samples. The place of OGM in relation to CMA or exome sequencing remains to be defined in order to optimize the prenatal diagnostic procedure.


Assuntos
Aberrações Cromossômicas , Diagnóstico Pré-Natal , Gravidez , Feminino , Humanos , Estudos Prospectivos , Estudos Retrospectivos , Cariotipagem , Análise Citogenética , Mapeamento Cromossômico
17.
J Gynecol Obstet Hum Reprod ; 51(1): 102232, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34563720

RESUMO

Management difficulties for monochorionic monoamniotic (MCMA) twin pregnancy reflect the absence of high-quality research into optimal types of monitoring, essential as MCMA twins have a high risk of intrauterine and neonatal death with perinatal mortality. D'Antonio et al's meta-analysis and the MonoMono study published in 2019, investigated the impact of monitoring location, out- or in-patient, of MCMA pregnancies and concluded that no specific management location is associated with improvement in prognosis. To evaluate the optimal timing for delivery of MCMA pregnancies, Van Mieghem and Chitrit carried out retrospective studies comparing gestational age of intrauterine death and risk of neonatal complication. The crossover point between the propective risk of intrauterine fetal death and neonatal complication was found at 32,33 weeks of gestation (WG), in accordance with American College of Obstetricians and Gynecologists and Royal College of Obstetricians and Gynaecologists recommendations but inclusion of complicated pregnancies and analysis of fetuses individually may be regarded as a bias. The majority of studies of MCMA pregnancies focused on elective scheduled cesareans, with only rare retrospective studies reporting on vaginal delivery. Of these, two recent studies carried out by French teams suggest that vaginal deliveries may be as safe as cesarean births for MCMA twin pregnancies when specific criteria are met. In summary, concerning MCMA pregnancies, prognosis is not found to improve with inpatient management, optimal timing for delivery is at approximately 33 GW and vaginal delivery should not be excluded.


Assuntos
Âmnio/fisiopatologia , Gravidez de Gêmeos/fisiologia , Âmnio/anormalidades , Âmnio/irrigação sanguínea , Feminino , Humanos , Recém-Nascido , Mortalidade Perinatal/tendências , Gravidez , Gravidez de Gêmeos/metabolismo , Estudos Retrospectivos , Ultrassonografia Pré-Natal/métodos
18.
J Clin Med ; 11(14)2022 Jul 20.
Artigo em Inglês | MEDLINE | ID: mdl-35887980

RESUMO

BACKGROUND: In France, more than 20% of women require induction of labor (IOL), which can be psychologically and emotionally challenging for patients. It is important to assess how they feel about their IOL experiences. Our aim was to cross-culturally adapt and evaluate the psychometric properties of a French version of the EXIT to assess women's experiences of IOL. METHODS: The EXIT was cross-culturally adapted by conducting forward and backward translations following international guidelines. A cross-sectional study was conducted to assess the psychometric properties of the ten French EXIT items: data completeness, factor analysis, internal consistency, score distribution, floor and ceiling effects, inter-subscale correlations, convergent validity, and test-retest reliability. RESULTS: The EXIT was successfully cross-culturally adapted to the French context and any IOL method. The results obtained from 163 patients requiring IOL showed good acceptability. Exploratory factor analysis resulted in a three-factor solution with subscales reflecting the experiential aspects of time taken to give birth, discomfort with IOL, and subsequent contractions. Good internal consistency (Cronbach's alpha or Spearman correlation coefficients ranging from 0.55 to 0.84) and good test-retest reliability (intraclass correlation coefficients ranging from 0.66 to 0.85) for the three identified subscales were found. CONCLUSIONS: The ten-item French EXIT is a valid and reliable instrument for the self-assessment of women's experiences of IOL in the three weeks following delivery for any method of IOL used. As a patient-reported outcome measure, it would allow the comparison of experiential outcomes across IOL studies in order to include women's preferences in decisions regarding their care.

19.
J Gynecol Obstet Hum Reprod ; 51(8): 102441, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35843538

RESUMO

Background The best methods of labour induction have still been controversial because of an increased risk of uterine rupture, especially in exposed women of labour induction with prostaglandins. We here attempted to determine, after Dinoprostone Vaginal Insert, previous cesarean women (exposed women), compared with nulliparous women (non-exposed women), are more likely 1) to have the dilated cervix (up to 3 cm or more), and 2) to require cesarean after cervix being dilated 3 cm or more. Methods This retrospective observational study included 43 exposed women and 188 non exposed women . A propensity score was calculated to balance the background differences including age, BMI, Bishop. Main findings Exposed women were significantly less likely to reach 3 cm of cervix dilation than non exposed women (62.8 and 67.6% [study] vs. 83 and 81.3% [control] before and after propensy score analysis, respectively (p < 0.05)). However exposed women were significantly less likely to require cesarean than non exposed women (4.9 vs. 17.2% p = 0.03) after inverse probability of treatment weighting once 3 cm dilation was reached. Conclusion After Dinoprostone Vaginal Insert, women with scarred uterus were less likely to reach 3 cm of cervix dilation but once 3 cm of dilation was achieved, they were less likely to require cesarean.


Assuntos
Maturidade Cervical , Dinoprostona , Estudos de Casos e Controles , Cesárea , Dilatação , Dinoprostona/efeitos adversos , Feminino , Humanos , Gravidez , Estudos Retrospectivos
20.
Nutrients ; 14(17)2022 Aug 24.
Artigo em Inglês | MEDLINE | ID: mdl-36079721

RESUMO

Return to work negatively affects the initiation and duration of breastfeeding. Our study's objective was to assess the percentage of departments in Auvergne with an appropriate space for pumping milk at work. Our cross-sectional survey investigated the arrangements for facilitating the continuation of breastfeeding on return to work at all departments at the Clermont-Ferrand University Hospital Center and perinatal (obstetric and pediatric) departments in this region. Our principal endpoint was the percentage of departments reporting that they had a lactation room­a room where nursing mothers can express milk­and whether it met the criteria defined by the French Labor Code. Among 98 respondents, 44 departments (44.9%) did not offer lactation rooms; of the remaining 54 departments, only 11 rooms met the legal requirements. All perinatal departments offered lactation rooms. The availability of a lactation room was associated with other breastfeeding support, such as a break period for expressing milk (p < 0.0001) and the availability of a refrigerator to store it (p = 0.01). Almost half the responding departments did not offer a lactation room where mothers could breastfeed or pump their milk. Measures must be envisioned to facilitate the pumping of breast milk by French women returning to work.


Assuntos
Mulheres Trabalhadoras , Local de Trabalho , Aleitamento Materno , Criança , Estudos Transversais , Feminino , Hospitais , Humanos , Lactação , Mães , Gravidez , Apoio Social
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