Publications by authors named "Jean-Yves LeFrant"

Introduction: Intensive care unit (ICU) patients under mechanical ventilation experience mild-to-severe pain. International guidelines emphasise the importance and benefits of multimodal analgesia to minimise opioid consumption and its side effects. However, no recommendation about drugs or protocol has been formulated.

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  • A multicenter study evaluated the impact of a restrictive fluid strategy versus a standard fluid strategy in ICU patients with septic shock, aiming to minimize fluid intake to avoid complications from positive fluid balance.
  • By analyzing 48 patients over 5 days, the restrictive group received significantly less fluid (89.7 ml/kg vs. 114.3 ml/kg), resulting in a smaller cumulative fluid balance.
  • However, after 28 days, both groups showed similar mortality and survival without life support, indicating no clear benefits of the restrictive strategy despite differences in fluid management during the initial week.
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Background: During central venous catheterization (CVC), ultrasound (US) guidance has been shown to reduce mechanical complications and increase success rates compared to the anatomical landmark (AL) technique. However, the impact of US guidance on catheter-related infections remains controversial. This systematic review and meta-analysis aimed to compare the risk of catheter-related infection with US-guided CVC versus AL technique.

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Clinical pharmacy is a fast-growing discipline in Europe, ensuring optimisation and a guarantee of safety in therapeutic management. Within a hospital the intensive care unit (ICU) typically admits the most severely ill patients who require expensive medications. These patients may be at risk for potentially serious adverse events, especially when medication errors occur.

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Introduction: The maximal norepinephrine (NE) dose >1 μg/kg/min during circulatory shock apparently is associated with higher mortality, but this threshold needs confirmation. This study aimed at investigating whether NE infusion at a dose >1 μg/kg/min could predict early intensive care unit (ICU) mortality (first 5 days). The secondary objective was to assess the day-by-day relationship between NE dose during the first 4 days of ICU stay and subsequent mortality.

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  • This study evaluated how two different hydration strategies ("drinking to thirst" vs. "not drinking to thirst") affected sodium levels in runners during the Ultra-Trail du Mont-Blanc (UTMB) in 2015.
  • A total of 196 participants were analyzed, and there were no significant differences in changes to capillary sodium concentrations or weight between the two hydration strategies.
  • The findings concluded that the chosen hydration method did not influence sodium levels or adverse event occurrences in the participants during the race.
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  • Genetic defects in perforin delivery have been implicated in hemophagocytic lymphohistiocytosis, leading researchers to investigate its role in severe COVID-19 infections.
  • A study of 54 SARS-CoV-2-infected patients revealed significantly lower levels of perforin-expressing NK cells compared to healthy controls, but this decrease was not associated with disease severity or predictive of mortality.
  • Findings suggest that the low frequency of perforin-positive NK cells in COVID-19 patients may be due to consumption rather than a primary defect in perforin expression, as levels returned to normal one year post-infection.
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Background: As about 10% of patients with COVID-19 present sequelae, it is important to better understand the physiopathology of so-called long COVID.

Method: To this aim, we recruited 29 patients hospitalized for SARS-CoV-2 infection and, by Luminex, quantified 19 soluble factors in their plasma and in the supernatant of their peripheral blood mononuclear cells, including inflammatory and anti-inflammatory cytokines and chemokines, Th1/Th2/Th17 cytokines, and endothelium activation markers. We also measured their T4, T8 and NK differentiation, activation, exhaustion and senescence, T cell apoptosis, and monocyte subpopulations by flow cytometry.

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  • Sepsis is a severe condition that leads to organ dysfunction and death; this study investigates how gut microbiota changes in septic shock patients over a week and its connection to bacterial translocation.
  • Sixty patients in ICU were monitored for changes in gut bacteria diversity, with a focus on those excluded for various gastrointestinal issues or recent treatments.
  • Results showed a significant decrease in gut bacterial diversity by Day 7, notably an increase in Enterococcus and a decrease in other beneficial bacteria, indicating potential implications for treatment and recovery in septic shock patients.
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Purpose: The present study aimed at assessing the prevalences of post-traumatic stress disorder (PTSD) (main objective), anxiety, depression, and burnout syndrome (BOS) and their associated factors in intensive care unit (ICU) staff workers in the second year of the COVID-19 pandemic.

Materials And Methods: An international cross-sectional multicenter ICU-based online survey was carried out among the ICU staff workers in 20 ICUs across 3 continents. ICUs staff workers (both caregivers and non-caregivers) were invited to complete PCL-5, HADS, and MBI questionnaires for assessing PTSD, anxiety, depression, and the different components of BOS, respectively.

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  • * Out of 569 patients, 90% had intentional caustic ingestion, with a 9.8% in-hospital mortality rate and 74% experiencing complications during their ICU stay.
  • * Factors like age (especially over 40) and a specific health score (SAPS II) were found to significantly correlate with the likelihood of mortality in these patients.
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Objective: To describe whether contemporary dosing of antifungal drugs achieves therapeutic exposures in critically ill patients that are associated with optimal outcomes. Adequate antifungal therapy is a key determinant of survival of critically ill patients with fungal infections. Critical illness can alter an antifungal agents' pharmacokinetics, increasing the risk of inappropriate antifungal exposure that may lead to treatment failure and/or toxicity.

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Since the initial spread of severe acute respiratory syndrome coronavirus 2 infection, several viral variants have emerged and represent a major challenge for immune control, particularly in the context of vaccination. We evaluated the quantity, quality, and persistence of immunoglobulin G (IgG) and IgA in individuals who received two or three doses of messenger RNA (mRNA) vaccines, compared with previously infected vaccinated individuals. We show that three doses of mRNA vaccine were required to match the humoral responses of preinfected vaccinees.

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The high mortality rate in nursing homes during the COVID-19 pandemic may be linked to psychological disorders in staff. Hence, we assessed the prevalence and associated factors of probable post-traumatic stress disorder (PTSD), anxiety, depression, and burnout of nursing home staff during the COVID-19 pandemic in a cross-sectional study including 66 randomly selected nursing homes in southern France. 537 of the contacted 3 821 nursing home workers (14.

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Background: The optimal treatment duration and the nature of regimen of antibiotics (monotherapy or combination therapy) for Pseudomonas aeruginosa ventilator‑associated pneumonia (PA-VAP) remain debated. The aim of this study was to evaluate whether a combination antibiotic therapy is superior to a monotherapy in patients with PA-VAP in terms of reduction in recurrence and death, based on the 186 patients included in the iDIAPASON trial, a multicenter, randomized controlled trial comparing 8 versus 15 days of antibiotic therapy for PA-VAP.

Methods: Patients with PA-VAP randomized in the iDIAPASON trial (short-duration-8 days vs.

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Central venous catheterization (CVC) is a frequent procedure, practiced by intensivists, anesthesiologists and advanced practice nurses in intensive care units and operative rooms. To reduce CVC-associated morbidity, it is essential to strive for best practices, based on the latest evidence. This narrative review aims to synthesize current knowledge on evidence-based best practices for CVC that improve the use and feasibility of real-time ultrasound-guided insertion procedures.

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Background: Knowledge of the occurrence and outcome of admissions to Intensive Care Units (ICU) over time is important to inform healthcare services planning. This observational study aims at describing the activity of French ICUs between 2013 and 2019.

Methods: Patient admission characteristics, organ dysfunction scores, therapies, ICU and hospital lengths of stay and case fatality were collected from the French National Hospital Database (population-based cohort).

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Background & Aims: Ascites is a frequent complication of cirrhosis. In intensive care units, initial hemodynamic assessment is frequently performed by echocardiography. This study evaluated the feasibility and usefulness of early hemodynamic assessment in the gastroenterology ward.

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Introduction: The prognostic significance of the thrombin generation assay (TGA) with a thrombomodulin (TM) challenge in patients entering hospital with severe COVID-19 is uncertain.

Methods: We prospectively evaluated an automated TGA (aTGA) using the ST-ThromboScreen® assay and ST-Genesia® analyser in 179 patients with severe COVID-19 during their admission to 2 university hospitals. The primary outcome was early survival at Day 28 (D28).

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  • The study compares the effectiveness and safety of two ultrasound-guided techniques for central venous catheterization: the internal jugular vein (IJV) approach and the axillary vein (AV) approach.
  • Results indicate that the IJV approach has a higher overall success rate of 96% compared to 89% for the AV approach, as well as better first puncture success rates and shorter procedure times.
  • Despite both methods being safe with low complication rates, the IJV approach showed slightly higher immediate complications and catheter colonization, with no catheter-related infections reported for the AV approach.
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