Publications by authors named "Alexandra Benachi"

Unlike any other medical field, fetal medicine addresses two patients: the fetus and the mother. Its primary goal is to improve neonatal outcomes, specifically by reducing mortality and morbidity, including long-term impacts, while minimizing risks to the mother. The aim of fetal interventions for life-threatening malformations is to decrease morbidity and mortality by mitigating the impact of the malformation on fetal growth and development.

View Article and Find Full Text PDF

Objective: Prenatal whole exome sequencing (pES) is increasingly prescribed for fetuses with ultrasound anomalies. Starting from the local French prenatal medicine practice, healthcare system and legal landscape, we aimed to address the broad medical and ethical issues raised by the use of pES for women and couples as well as for prenatal care providers.

Method: The French Federation of Human Genetics established a working group composed of clinicians and biologists from all over France to discuss pES challenges.

View Article and Find Full Text PDF

Objective: To determine the prevalence of genetic and endocrine abnormalities and to assess fetal, neonatal and surgical outcomes in cases of hypospadias associated with fetal growth restriction.

Method: A multicentric retrospective study was conducted across five prenatal diagnosis centers in Paris. The cohort encompassed all fetuses diagnosed with the combination of fetal growth restriction < 10th percentile (FGR) and hypospadias from 2013 to 2021.

View Article and Find Full Text PDF

Objective: To assess the frequency of fetal therapy for fetuses with congenital pulmonary malformations (CPMs) and to investigate their short-term outcomes.

Method: The study population included 435 singleton fetuses diagnosed with CPMs from a national population-based cohort study in France in 2015-2018. Information was obtained from medical records on CPM volume ratio (CVR), signs of compression, fetal therapy and perinatal outcomes.

View Article and Find Full Text PDF

Background: Mini-laparoscopic cholecystectomy (MLC) reduces abdominal wall injury and has the advantage of not altering the surgical principles of conventional laparoscopic cholecystectomy. Our team recently decided to extend the indications for mini-laparoscopy to pregnant women requiring cholecystectomy in the late second and third trimesters when significant uterine height is a potential difficulty.

Methods: From January 2022, all patients who underwent MLC after five months of pregnancy were included in the analysis.

View Article and Find Full Text PDF

Background: Temporary fetoscopic endoluminal tracheal occlusion (FETO) promotes lung growth and increases survival in selected fetuses with congenital diaphragmatic hernia (CDH). FETO is performed percutaneously by inserting into the trachea a balloon designed for vascular occlusion. However, reports on the potential postnatal side-effects of the balloon are scarce.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to assess the effectiveness of RCR-cfDNA testing for detecting common autosomal trisomies in twin pregnancies compared to singleton pregnancies.
  • It involved a multicenter analysis of 862 twin pregnancies, focusing on the rate of no-call results and the accuracy of detecting trisomy 21, 18, and 13.
  • Results showed that the RCR-cfDNA test achieved 100% accuracy for detecting all trisomies with a low no-call rate in twin pregnancies, indicating its reliability as a first-tier screening option.
View Article and Find Full Text PDF

Aim: This aim of this study was to detail maternal and fetal anomalies observed on a national scale in a large French cohort of patients presenting high hCG values (≥10 multiple of the median [MoM]) at Down syndrome screening in order to define clear and optimal guidelines.

Methods: This is a retrospective multicenter study based on a French annual database of all trisomy 21 screenings. Our study targeted and studied cases with hCG or hCGβ values ≥10 MoM.

View Article and Find Full Text PDF

Background: Small for gestational age is defined as a birthweight below a birthweight percentile threshold, usually the 10th percentile, with the third or fifth percentile used to identify severe small for gestational age. Small for gestational age is used as a proxy for growth restriction in the newborn, but small-for-gestational-age newborns can be physiologically small and healthy. In addition, this definition excludes growth-restricted newborns who have weights more than the 10th percentile.

View Article and Find Full Text PDF

Objectives: The objective of our study was to evaluate the long-term outcome of children born from a pregnancy complicated by idiopathic polyhydramnios. The secondary objective was to investigate factors associated with adverse outcomes.

Methods: We conducted a retrospective study in two prenatal diagnosis centers between January 1, 2009 and December 31, 2020.

View Article and Find Full Text PDF
Article Synopsis
  • A scientific expert committee reanalyzed suspected clusters of transverse upper limb reduction defects (TULRD) in France from 2019-2021, addressing public health concerns despite no initial risk exposure findings.
  • Methods included reviewing medical records, conducting spatiotemporal analyses for statistical significance, and examining environmental exposures through questionnaires and surveys.
  • Results showed no significant clusters in one area, a small cluster in another without identifiable risk factors, and only two cases in a third area, emphasizing the need for a standardized approach in managing similar health concerns.
View Article and Find Full Text PDF

Congenital diaphragmatic hernia (CDH) can be diagnosed prenatally and its severity assessed by fetal imaging. The prognosis of a fetus with CDH is based on whether or not the hernia is isolated, the measurement of lung volume on ultrasound and MRI, and the position of the liver. The birth of a child with CDH should take place in a center adapted to the care of such children, and in accordance with the recommendations defined by the French National Diagnosis and Care Protocol.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the effects of SARS-CoV-2 infection in pregnant women during their 2nd and 3rd trimesters, focusing on outcomes for both mothers and newborns during the first two COVID-19 waves in Paris from April 2020 to January 2021.
  • Conducted in 10 maternity hospitals, the research included 2,410 pregnant women, with 310 testing positive for the virus, mostly around 28 to 37 weeks of gestation, and found that many could be treated as outpatients, while 23% required hospitalization.
  • Key findings revealed that multiparous women were more likely to have serious outcomes such as preterm delivery and an
View Article and Find Full Text PDF

Context: Serum calcium is frequently measured during the neonatal period, and it is known to be influenced by the vitamin D status.

Objective: We hypothesized that the 25-hydroxyvitamin D (25OHD) concentration may influence the lower limit of the serum calcium normal range in neonates.

Methods: We included in our prospective cohort study 1002 mother-newborn pair recruited from April 2012 to July 2014, in 2 centers located in the neighborhoods of Paris, France, whose serum calcium was measured at 3 days of life.

View Article and Find Full Text PDF

Introduction: Serum calcium rapidly declines at birth because of the sudden interruption of the maternal-fetal calcium influx. Several factors are known to influence serum calcium in the first days of life, including circulating concentrations of maternal vitamin D. Objective was to establish the normal range variations of neonatal serum calcium according to the French current vitamin D supplementation during pregnancy, i.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the effectiveness of cell-free DNA (cfDNA) testing for detecting fetal aneuploidies in women with triplet pregnancies, as current data is limited compared to singleton pregnancies.
  • The research involved a retrospective analysis of 255 women who underwent cfDNA testing between 2017 and 2020, focusing primarily on trisomy 21 (T21) and secondarily on trisomy 18 (T18) and trisomy 13 (T13).
  • Results indicated that cfDNA testing can serve as a primary screening tool for major fetal aneuploidies in triplet pregnancies, highlighting the importance of informed patient consent before proceeding with the test.
View Article and Find Full Text PDF

Background: The European Reference Network for rare Inherited Congenital Anomalies, ERNICA, guidelines for gastroschisis cover perinatal period to help teams to improve care.

Method: A systematic literature search including 136 publications was conducted. Research findings were assessed following the GRADE methodology.

View Article and Find Full Text PDF

Data to guide evidence-based management of pregnant people with sickle cell disease (SCD) are limited. This international Delphi panel aimed to identify consensus among multidisciplinary experts for SCD management during pregnancy. The 2-round Delphi process used questionnaires exploring 7 topics (antenatal care, hydroxyurea use, transfusion, prevention of complications, treatment of complications, delivery and follow-up, and bottlenecks and knowledge gaps) developed by a steering committee.

View Article and Find Full Text PDF

Background: The treatment of fetuses with a congenital diaphragmatic hernia is challenging, but there is evidence that fetoscopic endoluminal tracheal occlusion has a benefit over expectant care. In addition, standardization and expertism have a great impact on survival and are probably crucial in centers that rely on expectant management with extracorporeal membrane oxygenation after birth.

Objective: This study aimed to examine the survival and morbidity rates of fetuses with a severe isolated left-sided congenital diaphragmatic hernia who underwent fetoscopic endoluminal tracheal occlusion vs expectant management in high-volume centers.

View Article and Find Full Text PDF

Advances in the management of sickle cell disease (SCD) have made it possible for most female patients (whether homozygous or compound heterozygous) to reach childbearing age and become pregnant. However, even in the less symptomatic forms of SCD a high risk of complications during pregnancy and the postpartum period can occur for both the mother (1% to 2% mortality) and the fetus. Coordinated care from the obstetrician and the sickle cell disease expert is essential, together with the active participation of the patient.

View Article and Find Full Text PDF
Article Synopsis
  • This study evaluates the effectiveness of cytogenetic testing through amniocentesis in fetuses diagnosed with isolated bilateral talipes equinovarus after an ultrasound.
  • It involved a retrospective analysis of 214 cases, where various prenatal data and outcomes were tracked from five fetal medicine centers between 2012 and 2021.
  • The results indicated that the majority of cases had normal genetic outcomes, with a high live birth rate, but three medical terminations occurred due to significant genetic disorders detected through testing.
View Article and Find Full Text PDF