Publications by authors named "Isabelle Guellec"

Introduction: Severe perinatal asphyxia at term or near term remains a critical public health issue, associated with high risks of neonatal death and hypoxic-ischaemic encephalopathy (HIE). Despite improved clinical guidelines, suboptimal care persists in many cases, and previous audits have demonstrated that up to 50% of asphyxia cases could be associated with suboptimal care. OptiNeoCare is a French study which aims to assess the prevalence and determinants of suboptimal obstetric and neonatal care and evaluate its potential impact on neonatal outcomes.

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Introduction: The literature extensively documents neonatal and paediatric outcomes related to preterm delivery, but maternal health in this circumtances remains underexplored. This study aimed to identify women with antepartum severe maternal morbidity (SMM) among those delivering preterm and explore whether they delivered in hospitals with risk-appropriate maternal care facilities.

Material And Methods: Women giving birth at 22-34 weeks of gestation were identified from the French national prospective EPIPAGE-2 cohort study in 2011; terminations of pregnancy for fetal congenital malformations were excluded.

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Introduction: The use of different growth charts can lead to confusion in discussions between professionals. There are obstetric charts (of fetal growth) and neonatal charts (of measurements at birth and of postnatal growth). These charts can be descriptive (derived from an unselected population) or prescriptive (derived from of a population at low risk and with optimal conditions for growth).

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Aim: This study compared neurodevelopmental screening questionnaires completed when preterm-born children reached 2 years of corrected age with social communication skills at 5.5 years of age.

Methods: Eligible subjects were born in 2011 at 24-34 weeks of gestation, participated in a French population-based epidemiological study and were free of motor and sensory impairment at 2 years of corrected age.

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Article Synopsis
  • - A nationwide study is being conducted from September 2015 to March 2017 to better understand neonatal hypoxic-ischemic encephalopathy, involving 794 affected children and collecting comprehensive data on their pregnancy, delivery, and hospitalization.
  • - Researchers are implementing follow-up through clinical and parental questionnaires until the children reach 4 years old to monitor long-term outcomes.
  • - The findings highlight the clinical presentation of the affected newborns and evaluate factors influencing their hospital discharge outcomes and the effectiveness of therapeutic hypothermia treatment.
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Objective: To determine the risk on brain lesions according to gestational age (GA) in neonates with neonatal encephalopathy.

Design: Secondary analysis of the prospective national French population-based cohort, Long-Term Outcome of NeonataL EncePhALopathy.

Setting: French neonatal intensive care units.

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Objective: To determine whether the relative measurement of birth weight (BW) and head circumference (HC) in preterm infants is associated with neurological outcomes.

Methods: The EPIPAGE-2 Study included 3473 infants born before 32 weeks' gestation, classified based on their Z-score of BW and HC on the Fenton curves as concordant (≤1 SD apart) or discordant (>1 SD difference). We defined four mutually exclusive categories: discordant smaller BW (sBW) with BW-1SD and concordant small measurement (CsM) with BW and HC concordant and both ≤-1SD.

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Objective: To report neurodevelopment at age 5.5 years according to developmental delay screening with the Ages & Stages Questionnaire (ASQ) in late infancy in preterm-born children.

Design: Population-based cohort study, EPIPAGE-2.

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Unlabelled: Management of respiratory distress (RD) in the extremely preterm newborn meets recommendations. Few data are available concerning the management and the clinical course of moderate and late preterms with RD. Clinical course and management among moderate (30-33 weeks (wks) of gestation) and late preterms (34-36 wks) were assessed in the Neobs study, a French neonatal observational cohort study (2018) of preterms with RD in the first 24 h of life.

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To determine the early factors associated with continuous positive airway pressure (CPAP) failure in moderate-to-late preterm infants (32 + 0/7 to 36 + 6/7 weeks' gestation) from the NEOBS cohort study. The NEOBS study was a multi-center, prospective, observational study in 46 neonatal intensive care units in France, which included preterm and late preterm infants with early neonatal respiratory distress. This analysis included a subset of the NEOBS population who had respiratory distress and required ventilatory support with CPAP within the first 24 h of life.

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Objective: We aimed to study neurodevelopmental outcomes and healthcare utilisation at age 5-6 years in very preterm children with bronchopulmonary dysplasia (BPD).

Design: Prospective and national population-based study.

Setting: All the neonatal units in 25 French regions (21 of the 22 metropolitan regions and 4 overseas regions).

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Objectives: To assess in newborns with neonatal encephalopathy (NE), presumptively related to a peripartum hypoxic-ischemic event, the frequency of dysglycemia and its association with neonatal adverse outcomes.

Study Design: We conducted a secondary analysis of LyTONEPAL (Long-Term Outcome of Neonatal hypoxic EncePhALopathy in the era of neuroprotective treatment with hypothermia), a population-based cohort study including 545 patients with moderate-to-severe NE. Newborns were categorized by the glycemia values assessed by routine clinical care during the first 3 days of life: normoglycemic (all glycemia measurements ranged from 2.

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Aim: The number of lymph nodes (LN) that should be sampled during nephrectomy for Wilms tumour (WT) remains controversial but of utmost importance for staging purposes. The aim of this French national retrospective study of patients enrolled in SIOPWT2001 trial was to analyse the number of LN sampled according to their site and to determine if the number of six asked by the International Society of Paediatric Oncology - Renal Tumour Study Group (SIOP-RTSG) UMBRELLA protocol is achievable.

Methods: We reviewed the data collected on central pathology review forms from 2002 to 2014 for only unilateral WT.

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Background: Renal oligohydramnios (ROH) is caused by bilateral congenital abnormalities, either of renal parenchymal or obstructive origin. ROH is a poor prognostic factor of neonatal survival; lung hypoplasia is reported to be the main cause of mortality. We aimed to describe the fetal morbidity and pre- and postnatal mortality in case of ROH due to renal congenital pathologies and to find predictive risk factors for morbidity and mortality.

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Objective: To re-visit short-term outcomes and associated risk factors of newborns with hypoxic-ischemic encephalopathy (HIE) in an era where hypothermia treatment (HT) is widespread.

Methods: This is a prospective population-based cohort in French neonatal intensive care units (NICU). Neonates born at or after 34 weeks of gestational age with HIE were included; main outcomes were in-hospital death and discharge with abnormal or normal MRI.

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Initiation of therapeutic hypothermia (TH) within 6 h of life is a major concern for treating neonatal hypoxic ischemic encephalopathy (HIE). We aimed to determine clinical and healthcare organizational factors associated with delayed TH in a French population-based cohort of neonates with moderate/severe HIE. Time to reach a rectal temperature of 34 °C defines optimal and delayed (within and over 6 h, respectively) TH.

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To describe the frequency and nature of premedication practices for neonatal tracheal intubation (TI) in 2011; to identify independent risk factors for the absence of premedication; to compare data with those from 2005 and to confront observed practices with current recommendations. Data concerning TI performed in neonates during the first 14 days of their admission to participating neonatal/pediatric intensive care units were prospectively collected at the bedside. This study was part of the Epidemiology of Procedural Pain in Neonates study (EPIPPAIN 2) conducted in 16 tertiary care units in the region of Paris, France, in 2011.

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Introduction: The aim of the study was to identify the obstetric risk factors for hypoxic-ischemic encephalopathy (HIE) in infants with asphyxia at birth.

Material And Methods: This multicenter case-control study covered the 5-year period from 2014 through 2018 and included newborns ≥36 weeks of gestation with an umbilical pH at birth ≤7.0.

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Article Synopsis
  • The study evaluates the effectiveness of a protective ventilation strategy for patients undergoing ECMO due to refractory ARDS, comparing practices before and after implementing a specific ventilation bundle in 2014.
  • In the post-implementation period, there was a significant increase in PEEP and mean pressure adjustments, while driving pressures were notably lower, indicating better ventilatory control under ECMO.
  • Despite these improvements in ventilatory settings and an increase in prone positioning, the study found no significant effects on the length of mechanical ventilation, length of hospital stay, or survival rates.
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Aim: Neonatologist-performed echocardiography (NPE) is recommended during shock. We aimed to assess factors associated with NPE utilisation in the NICU and physiological information obtained during management of shock.

Methods: An Internet-based survey, sent to neonatologists with interest in haemodynamics, studying NPE utilisation in shock management through a real clinical case and correlating its use with responders' training and NICU settings.

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Importance: An international expert committee recently revised its recommendations on amino acid intake for very preterm infants, suggesting that more than 3.50 g/kg/d should be administered only to preterm infants in clinical trials. However, the optimal amino acid intake during the first week after birth in these infants is unknown.

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Aim: Birth asphyxia can lead to organ dysfunction, varying from isolated biological acidosis to hypoxic-ischemic encephalopathy (HIE). Pathophysiology of moderate or severe HIE is now well known and guidelines exist regarding the care required in this situation. However, for newborns without moderate or severe HIE, no consensus is available.

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Background: Hypothermia is widely used for infants with hypoxic-ischemic neonatal encephalopathy but its impact remains poorly described at a population level. We aimed to describe brain imaging in infants born at ≥36 weeks' gestation, with moderate/severe encephalopathy treated with hypothermia.

Methods: Descriptive analysis of brain MRI and discharge neurological examination for infants included in the French national multicentric prospective observational cohort LyTONEPAL.

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Introduction: Necrotizing Enterocolitis (NEC) remained a dramatic complication leading to death or neonatal morbidities in preterms. For some, Intra-Abdominal Hypertension (IAH) and Abdominal Compartment Syndrome worsened the multi-organ failure. An open abdomen surgery could be an alternative to conventional surgical treatment to move beyond this stage.

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