Publications by authors named "Mandelbrot Laurent"

Background: Maternal exposure to unfavourable social conditions is associated with a higher rate of perinatal complications, such as placental vascular pathologies. A higher risk of preterm birth (PTB) has also been reported, and variations across studies and settings suggest that different patterns may be involved in this association.

Objective: To assess the association between maternal social deprivation and PTB (overall and by phenotype).

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Objective: Bariatric surgery has an impact on subsequent pregnancies, in particular an association between gastric bypass and small for gestational age. Knowledge is lacking on whether sleeve gastrectomy is associated with more favorable pregnancy outcomes. This study aimed to compare the impact of sleeve gastrectomy and Roux-en-Y gastric bypass on the incidence of small for gestational age (SGA), and of adverse pregnancy outcomes.

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  • A study was conducted to compare perinatal outcomes between immediate and deferred selective termination of discordant twin pregnancies with anomalies, considering the risk of pregnancy loss.
  • The results showed that the deferred selective termination group had a 100% survival rate for the healthy co-twin, while the immediate group had a 93.8% survival rate (P<.01).
  • Additionally, the rate of preterm birth was significantly lower in the deferred group (20.2%) compared to the immediate group (66.7%), indicating more favorable outcomes with delayed procedures.*
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  • The study aimed to evaluate trends in exposure to harmful drugs among pregnant women in France from 2013 to 2019.
  • It involved analyzing data from over 5 million pregnancies to determine the prevalence of exposure to teratogenic and fetotoxic drugs during critical pregnancy periods.
  • Results indicated that while there was a notable decrease in overall harmful drug exposure during this time, specific drugs such as retinoids and NSAIDs were the most commonly used.
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Objective: The aim of this study was to compare twice-daily versus once-daily administration of intravaginal PGE2 for induction of labor at term. Efficacy, safety, and patient satisfaction were evaluated.

Study Design: For this single-center, randomized, comparative, open-label, two-arm, and parallel study, pregnant women with term singleton live pregnancies ≥ 37 weeks of gestation, medical indications for induction of labor, and Bishop score ≤ 6 were randomized to either the control group (induction of labor with PGE2 gel with repeat dose after 24 h) or the experimental group (repeat dose after 12 h).

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Background: Preterm prelabor rupture of membranes (PPROM) is a frequent obstetrical condition with risks of maternal and neonatal morbidity and mortality. Home hospitalization (HH) management is an alternative to conventional hospitalization (CH) which remains controversial, and there has been little study of eligibility criteria.

Objective: To study obstetrical and perinatal outcomes of PPROM between 24 and 34 gestational weeks in patients discharged to homecare after 4 days, based on a policy of expanded discharge criteria.

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Background: Incontinence occurs frequently in the postpartum period. Several theoretical pathophysiological models may underlie the hypothesis that different types of management of the active phase of the second stage of labor have different effects on pelvic floor muscles and thus perhaps affect urinary and anal continence.

Objective: This study aimed to evaluate the impact of "moderate pushing" on the occurrence of urinary or anal incontinence compared with "intensive pushing," and to determine the factors associated with incontinence at 6 months postpartum.

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Objective: There are two approaches to peripartum management for pregnant patients undergoing anticoagulation treatments: spontaneous labor or scheduling an induction. A long interval without anticoagulation is a thrombosis risk factor, while a short interval leads to risks of delivery without epidural analgesia or post partum hemorrhage. Our objective was to evaluate the impact of planned induction versus spontaneous labor on obtaining neuraxial analgesia.

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  • The vaginal microbiota consists of microorganisms in the vagina that play a crucial role in women's reproductive and overall health, primarily characterized by Lactobacillus species.
  • Disruptions to the vaginal microbiota, caused by factors like antibiotics, sexual activity, and hormonal changes, can lead to conditions such as bacterial vaginosis, especially impactful during pregnancy.
  • A study involving 749 pregnant women found that low diversity in the vaginal microbiota, particularly a depletion of Lactobacilli, is linked to an increased risk of preterm delivery, suggesting that overall diversity, rather than specific species, is a better risk indicator.
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Objectives: Because NRTIs can have fetal toxicities, we evaluated a perinatal NRTI-sparing strategy to prevent perinatal HIV transmission. Our primary objective was to determine the proportion maintaining a viral load (VL) of <50 copies/mL up to delivery on darunavir/ritonavir monotherapy, without requiring treatment intensification.

Methods: In a one-arm, multicentre Phase 2 clinical trial, eligible patients in the first trimester of pregnancy on ART with plasma VL < 50 copies/mL received maintenance monotherapy with darunavir/ritonavir, 600/100 mg twice daily.

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Background: Inadequate prenatal care utilization (PCU) is involved in the higher risk of adverse maternal outcomes among migrant vs. native women. Language barrier may be a risk factor for inadequate PCU.

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  • The study aimed to compare imaging and genetic findings in fetuses with corpus callosum abnormalities identified through prenatal exome sequencing (pES) between 2018 and 2020.
  • A total of 113 fetuses were included, revealing pathogenic/likely pathogenic (P/LP) genetic variants in certain types of abnormalities, with significant findings in cases with associated cerebellar issues.
  • The results indicated that P/LP variants were more common in non-isolated conditions and certain types of callosal dysgenesis, but no variants were found for isolated short CC, interhemispheric cysts, or pericallosal lipoma.
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Objective: To evaluate safety of prenatal corticosteroids in pregnancies of women with sickle cell disease.

Methods: A multicenter observational study of patients with sickle cell disease, comparing vaso-occlusive crises (VOC) requiring hospital care between pregnancies with versus without prenatal corticosteroids.

Results: In 40 pregnancies exposed to prenatal corticosteroids, compared with 370 unexposed pregnancies, VOC were not more frequent (62.

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Although the 2022 Monkeypox virus epidemic mostly affects males, particularly men having sex with men, transmission to women may also occur. In case of MPXV infection in pregnancy, transmission to the fetus can result in very severe disease. Thus, caregivers should be aware of the measures to be taken according to the available evidence, in case of exposure or in case of symptoms particularly skin rash compatible with this diagnosis in a pregnant woman.

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Postpartum anal incontinence is common. After a first delivery (D1) with perineal trauma, follow-up is advised to reduce the risk of anal incontinence. Endoanal sonography (EAS) may be considered to evaluate the sphincter and in case of sphincter lesions to discuss cesarean section for the second delivery (D2).

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Objective: Our study evaluated the contribution of amniocentesis in the diagnostic approach of small-for-gestational-age fetuses (SGA) without morphological abnormality identified on ultrasound by studying FISH (fluorescence in situ hybridization) for chromosomes 13, 18 and 21, CMV PCR (cytomegalovirus polymerase chain reaction), karyotype and CGH (genomic hybridization array) METHODS: Our single-center retrospective cohort study included pregnant women referred for prenatal diagnosis for a SGA fetus in whom amniocentesis was performed between 2016 and 2019. A SGA fetus was defined as a fetus with an estimated fetal weight (EFW) below the 10th percentile according to referral growth curves in use. We evaluated the number of amniocenteses with an abnormal result and identified factors that may be associated with this outcome.

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Objective: To compare the rate of failed induction after cervical ripening by two forms of vaginal prostaglandins.

Material And Methods: This two-year retrospective study (January 1, 2016, through December 31, 2017) in two tertiary maternity units included nulliparous women with a singleton fetus in cephalic presentation and an unfavorable cervix requiring labor induction for prolonged pregnancy. The principal endpoint was the rate of failed induction, defined by the performance of a cesarean delivery before 6 cm of dilation.

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Background: Toxoplasma gondii is one of the world's most common parasites. Primary infection of the mother during pregnancy can lead to transmission to the fetus with risks of brain and eye lesions, which may cause lifelong disabilities. France instituted a national program based on monthly retesting of susceptible pregnant women to reduce the number of severe cases through prompt antenatal and postnatal treatment and follow-up.

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Even in the absence of manifestations at birth, children with congenital toxoplasmosis (CT) may develop serious long-term sequelae later in life. This systematic review aims to present the current state of knowledge to base an informed decision on how to optimally manage these pregnancies and children. For this, a systematic literature search was performed on 28 July 2022 in PubMed, CENTRAL, ClinicalTrials.

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Objective: Patients with Crohn's disease (CD) may have perineal lesions or a history of anorectal surgery that raise concerns about complications during delivery resulting in a discussion of cesarean section. Our objective was to study the impact of CD on the mode of delivery.

Method: We conducted a retrospective study between 2005 and 2019 of the pregnancy outcomes of patients with CD.

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Background: Antiretroviral therapy (ART) is remarkably effective in preventing perinatal transmission (PT) of HIV-1. We evaluated the PT rate in a population of women with widespread access to ART before conception.

Methods: The analysis included 14 630 women with HIV-1 who delivered from 2000 to 2017 at centers participating in the nationwide prospective multicenter French Perinatal Cohort (ANRS-EPF).

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Prenatal systematic screening for congenital toxoplasmosis has been performed in Austria and France since 1975 and neonatal screening for congenital toxoplasmosis has been part of the New England Newborn screening program since 1986. In this narrative review we review the data leading up to the systematic screening programs in Austria and France, highlighting the main finding of the European Union funded research in the 1990s and early 2000s. Different descriptive studies of the effect of pre- or postnatal treatment are discussed.

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Introduction: Lymphocytic choriomeningitis virus (LCMV) uses rodents such as mice and hamsters as its principal reservoir. When women acquire LCMV during pregnancy because of contact with rodents, it can lead to congenital LCMV infection, which is associated with high mortality and morbidity. Although the number of cases reported in the literature is increasing, LCMV is rarely mentioned because a history of exposure to rodents is uncommon and mostly unknown.

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