Publications by authors named "Didier Pinquier"

Article Synopsis
  • * Researchers analyzed data from 361 infants with confirmed pertussis, finding that 32 (9%) developed fulminant symptoms, which were more common in neonates, unvaccinated, and premature infants.
  • * Results indicated that B. pertussis strains that produced PRN were associated with higher risks of fulminant pertussis, suggesting the significance of PRN in the severity of the disease.
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  • About 20% of neonates with congenital cytomegalovirus (cCMV) experience long-term health issues, making early prediction of outcomes crucial for treatment and counseling.
  • The study followed 227 neonates diagnosed with cCMV to identify predictive markers; key findings showed maternal primary infection during the first trimester greatly increased the risk of negative outcomes.
  • A model using normal hearing, platelet count, and cranial ultrasound at birth showed high specificity and can help clinicians tailor care for cCMV-affected neonates.
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  • - A study was conducted to evaluate the safety and effectiveness of nirsevimab, a monoclonal antibody, in preventing hospitalizations due to respiratory syncytial virus (RSV) in healthy infants during their first RSV season.
  • - Infants aged 12 months or younger who were born at least 29 weeks gestation were randomly assigned to receive either nirsevimab or standard care, with results showing that 0.3% in the nirsevimab group were hospitalized compared to 1.5% in the standard-care group, indicating an 83.2% efficacy for nirsevimab.
  • - The study also found that severe cases of RSV were less common in the nirsevimab
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Most osteoarticular infections (OAI) occur via the hematogenous route, affect children under 5 years of age old, and include osteomyelitis, septic arthritis, osteoarthritis and spondylodiscitis. Early diagnosis and prompt treatment are needed to avoid complications. Children with suspected OAI should be hospitalized at the start of therapy.

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  • A new variant of echovirus 11 has been identified as the cause of nine severe neonatal infections, primarily affecting male infants, with a notable occurrence among twins.
  • The affected infants, aged 3-5 days at the time of illness, presented with severe sepsis and liver failure.
  • This variant, discovered in France since April 2022, has led to an increase in fatal neonatal enterovirus infections compared to previous years, prompting calls for national and international health alerts.
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Article Synopsis
  • - The respiratory syncytial virus (RSV) causes around 50,000 hospitalizations each season in children under 5 in France, especially affecting infants younger than 1 year old.
  • - There is a push for universal strategies to protect young children from RSV, which may involve maternal vaccination or administering monoclonal antibodies at birth, and later vaccinations.
  • - Successful implementation of these prevention methods will require strong collaboration between parents, healthcare providers, and public health authorities to ensure all children get the necessary protection at the start of RSV season.
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Background: In Europe, meningococcal (Men) vaccines are available against 5 of the 6 serogroups responsible of nearly all cases of invasive meningococcal disease (IMD). Meningococcal vaccination has been introduced in the national immunization programs (NIPs) for children and adolescents of numerous European countries, but with no consistent strategy across countries.

Objectives: To describe IMD epidemiology, NIPs, and vaccination coverage rates (VCRs) in children and adolescents in 8 Western European countries.

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Objective: To evaluate cytomegalovirus (CMV) viral load dynamics in blood and saliva during the first 2 years of life in symptomatic and asymptomatic infected infants and to identify whether these kinetics could have practical clinical implications.

Study Design: The Cymepedia cohort prospectively included 256 congenitally infected neonates followed for 2 years. Whole blood and saliva were collected at inclusion and months 4 and 12, and saliva at months 18 and 24.

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  • The study aimed to evaluate the effectiveness of different oral therapies for treating febrile urinary tract infections (FUTI) caused by ESBL-producing Enterobacteriaceae in children, particularly focusing on the Amoxicillin-clavulanate/cefixime combination.
  • Researchers analyzed data from children under 18 who participated in a prior study, looking at recurrence rates of infections within one month of treatment.
  • Results showed no significant difference in recurrence rates among treatments (cotrimoxazole, ciprofloxacin, and AC-cefixime) and indicated that 97.6% of the responsible bacteria were susceptible to the AC-cefixime combination, suggesting it is a viable treatment option.
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  • The study investigates how multi-drug resistant Enterobacterales affect the effectiveness of oral antibiotics for treating febrile urinary tract infections (FUTIs) in children, focusing on β-lactamase profiles and genotypes.
  • A total of 251 ESBL-producing Enterobacterales isolates were analyzed for their susceptibility to various antibiotics, revealing that all were resistant to cefixime and cefpodoxime but that the combination of cefixime with amoxicillin/clavulanate restored susceptibility in most cases.
  • The findings suggest that cefixime combined with amoxicillin/clavulanate is an effective treatment option, with no failures reported, and mecillinam combined with amoxicillin/clavulanate is recommended as an
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Background: Malignant pertussis (MP) affects young infants and is characterized by respiratory distress, perpetual tachycardia and hyperleukocytosis up to 50 G/l, leading to multiple organ failure and death in 75% of cases. Leukodepletion may improve prognosis. A therapeutic strategy based on leukodepletion and extracorporeal life support (ECLS) according to different thresholds of leucocytes has been proposed by Rowlands and colleagues.

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Background: The extent to which very young children contribute to the transmission of SARS-CoV-2 is unclear. We aimed to estimate the seroprevalence of antibodies against SARS-CoV-2 in daycare centres that remained open for key workers' children during a nationwide lockdown in France.

Methods: Children and staff who attended one of 22 daycare centres during a nationwide lockdown in France (between March 15 and May 9, 2020) were included in this cross-sectional, multicentre, seroprevalence study.

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Background: The population structure of extraintestinal pathogenic Escherichia coli evolves over time, notably due to the emergence of antibiotic-resistant clones such as ESBL-producing Enterobacteriaceae (ESBL-E).

Objectives: To analyse by WGS the genetic diversity of a large number of ESBL-E isolated from urinary tract infections in children from paediatric centres across France between 2014 and 2017 and collected by the National Observatory of febrile urinary tract infection (FUTI) caused by ESBL-E.

Methods: A total of 40 905 Enterobacteriaceae-positive urine cultures were identified.

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Introduction: To evaluate the consequences of bronchopulmonary dysplasia (BPD) on academic outcomes and healthcare use in adolescents born very preterm.

Methods: This cohort study included 15-year-old adolescents born very preterm (< 32 weeks) between 2011 and 2013, with and without BPD, and controls born full term. Data regarding academic performance, current medical follow-up, and family characteristics were collected.

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Background: The known relationship between the gestational age at maternal primary infection an the outcome of congenital CMV is based on small, retrospective studies conducted between 1980 and 2011. They reported that 32% and 15% of cases had sequelae following a maternal primary infection in the first and second or the third trimester, respectively. We aimed to revisit this relationship prospectively between 2011 and 2017, using accurate virological tools.

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Prematurity and bronchopulmonary dysplasia (BPD) affect long-term lung function. We studied the respiratory outcome of adolescents born very preterm and controls from the Etude EPIdémiologique sur les Petits Ages Gestationnels cohort and analysed their current lung function in relation to asthma symptoms (categorised in three age groups) from birth. In models including BPD, asthma at each age and confounding factors in the preterm group, BPD and preschool wheeze were the only independent variables associated with FEV Preschool wheeze is an independent factor associated with FEV impairment in adolescents born very preterm.

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Vaccinations of premature infants are often delayed despite being at an increased risk of contracting vaccine preventable diseases. This article reviews the current knowledge on the immune response to widely used vaccines, on the protection derived from routine immunization and on vaccine safety and tolerability in a population of preterm infants. Available data evaluating the immune response of preterm infants support early immunization without correction for gestational age.

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Introduction: Oxidant stress is implicated in the pathogenesis of bronchopulmonary dysplasia (BPD). Light induces peroxide generation in parenteral nutrition (PN) solutions, creating an oxidant stress. Shielding PN from light decreases its peroxide content, which has nutrition and biochemical benefits in animals and humans.

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Background: About 10% of pediatric patients with invasive pneumococcal disease (IPD) die from the disease. Some primary immunodeficiencies (PIDs) are known to confer predisposition to IPD. However, a systematic search for these PIDs has never been carried out in children presenting with IPD.

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Nurses are authorised to administer vaccines with a medical prescription or written protocol. Since 2008, they have been able to administer the seasonal influenza vaccine without a prescription to people at risk. A survey highlighted their need to improve their knowledge of vaccination.

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Varicella, a widespread disease of childhood, is usually benign but may in some instances lead to complications and eventually death. The aim of this study was to assess whether varicella severity in infants below one year of age was associated with the level of anti-varicella zoster virus (VZV) maternal antibodies. Two different data sets were used.

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