Publications by authors named "Ragot S"

Considering the general view that unconventional immune effectors play a major role in antitumor immunity, we recently postulated that the distinct new innate CD8 T-cell pool (co-expressing the transcription factor Eomesodermin and innate markers such as KIR/NKG2A) may counteract tumor cells, and thereby be potential target for cancer therapy. Here, to test this assumption, we used successfully targeted anti-leukemic therapy discontinuation (TFR) in chronic myeloid leukemia (CML). Numerical and functional status of innate CD8 T-cells, iNKT cells and γδ T-cells, in comparison with NK cells, was compared longitudinally between non-relapsed patients (i.

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Background: Poor sleep is a major concern in intensive care units (ICUs), particularly in mechanically ventilated patients, because it is associated with longer duration of the weaning phase and higher mortality. High noise levels in ICUs are frequently reported by patients as one of the most disturbing sleep-disrupting factors but would be responsible for less than 20% of arousals. This suggests major inter-individual variability in noise sensitivity.

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Purpose: Sleep deprivation (SD) reduces time to task failure during endurance exercises. The aim of our work was to study the effect of acute SD on the endurance of a skeletal hand muscle and to investigate cortical motor drive to muscle and perception of effort.

Methods: Origin of the early exhaustion after SD might be insufficient cortical motor drive to muscle or motor inhibition because of excessive perception of effort.

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Introduction: First-line oxygenation strategy in patients with acute hypoxaemic respiratory failure consists in standard oxygen or high-flow nasal oxygen therapy. Clinical practice guidelines suggest the use of high-flow nasal oxygen rather than standard oxygen. However, findings remain contradictory with a low level of certainty.

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Background: Dyspnea is a key symptom of de novo acute hypoxemic respiratory failure. This study explores dyspnea and its association with intubation and mortality in this population.

Methods: This was a secondary analysis of a multicenter, randomized, controlled trial.

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Background: One of the major challenges in managing allergic bronchopulmonary aspergillosis remains consistent and reproducible assessment of response to treatment.

Research Question: What are the most relevant changes in CT scan parameters over time for assessing response to treatment?

Study Design And Methods: In this ancillary study of a randomized clinical trial (NebuLamB), patients with asthma with available CT scan and without exacerbation during a 4-month allergic bronchopulmonary aspergillosis exacerbation treatment period (corticosteroids and itraconazole) were included. Changed CT scan parameters were assessed by systematic analyses of CT scan findings at initiation and end of treatment.

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Aims/hypothesis: Type 2 diabetes is associated with a high risk of sudden cardiac death (SCD), but the risk of dying from another cause (non-SCD) is proportionally even higher. The aim of the study was to identify easily available ECG-derived features associated with SCD, while considering the competing risk of dying from non-SCD causes.

Methods: In the SURDIAGENE (Survie, Diabete de type 2 et Genetique) French prospective cohort of individuals with type 2 diabetes, 15 baseline ECG parameters were interpreted among 1362 participants (mean age 65 years; HbA 62±17 mmol/mol [7.

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Patients with end stage kidney disease treated by dialysis (ESKDD) process dialysis sessions to remove molecules usually excreted by kidneys. However, dialysis therapy could also contribute to endocrine disruptors (ED) burden. Indeed, materials like dialyzer filters, ultrapure dialysate and replacement fluid could exposed ESKDD patients to Bisphenol A (BPA) and chlorinated derivatives of BPA (ClxBPAs).

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Background: Little attention has been paid to potential differences in prognosis between mechanically ventilated males and females in intensive care units (ICUs). We hypothesized that a sex gap in the risk of extubation failure in ICUs may exist.

Methods: Post hoc analysis of a large-scale clinical trial including patients at high risk of extubation failure in ICUs, with the aim of assessing the risk of extubation failure according to sex.

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Article Synopsis
  • A systematic review and meta-analysis was conducted to evaluate the effectiveness of high-flow nasal cannula (HFNC) oxygen therapy compared to conventional oxygen therapy (COT) in COVID-19 patients with acute respiratory failure.
  • The study analyzed data from 20 research papers involving 8,383 patients, finding that HFNC significantly reduced the risk of intubation and hospital stay length, but not mortality rates.
  • The conclusion suggests HFNC is a beneficial option for managing acute respiratory failure in COVID-19, as it decreases the need for intubation without affecting the overall survival rate.
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Objectives: Due to the noisy environment, a very large number of patients admitted to intensive care units (ICUs) suffer from sleep severe disruption. These sleep alterations have been associated with a prolonged need for assisted ventilation or even with death. Sleep scoring in the critically ill is very challenging and requires sleep experts, limiting relevant studies to a few experienced teams.

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Plasma creatinine is a marker of interest in renal transplantation but data on its kinetics in the first days following transplantation are scarce. The aim of this study was to identify clinically relevant subgroups of creatinine trajectories following renal transplantation and to test their association with graft outcome. Among 496 patients with a first kidney transplant included in the French ASTRE cohort at the Poitiers University hospital, 435 patients from donation after brain death were considered in a latent class modeling.

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Aims: The hyperglycaemic stress induces the release of inflammatory proteins such as S100A12, one of the endogenous ligands of the receptors for advanced glycation end products (RAGE). Chronic activation of RAGE has multiple deleterious effects in target tissues such as the heart and the vessels by promoting oxidative stress, inflammation by the release of cytokines, macrophages infiltration, and vascular cell migration and proliferation, causing ultimately endothelial cell and cardiomyocyte dysfunction. The aim of our study was to investigate the prognostic value of circulating S100A12 beyond established cardiovascular risk factors (CVRF) for heart failure (HF) and major adverse cardiovascular events (MACE) in a cohort of patients with type 2 diabetes.

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Aims: For type 2 diabetes persons, we assessed the association between renal function decline and heart failure hospitalisation (HFH) and validated dynamic HFH predictions (DynHFH) based on repeated estimated Glomerular Filtration Rate (eGFR) values.

Methods: We studied 1413 patients from the SURDIAGENE cohort. From a joint model for longitudinal CKD-EPI measures and HFH risk, we calculated the probability of being HFH-free in the next five years.

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Background: Spontaneous-breathing trials can be performed with the use of either pressure-support ventilation (PSV) or a T-piece. Whether PSV trials may result in a shorter time to tracheal extubation than T-piece trials, without resulting in a higher risk of reintubation, among patients who have a high risk of extubation failure is unknown.

Methods: In this multicenter, open-label trial, we randomly assigned patients who had a high risk of extubation failure (i.

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Article Synopsis
  • The COVID-19 pandemic led to global kidney transplantation (KT) moratoriums, creating uncertainty about their effects on the life expectancy of KT candidates.
  • A study simulated various populations of French KT candidates, analyzing potential outcomes based on moratorium lengths of 0 to 24 months, using data from nearly 64,000 patients.
  • Findings indicated that even a short 2.5-month moratorium predicted additional waiting list time and deaths, with significant impacts observed for moratoriums longer than 9 months, suggesting that extending the moratorium could have severe consequences for patient outcomes.
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Article Synopsis
  • The study examines the effectiveness of high-flow nasal cannula oxygen compared to standard oxygen in reducing mortality and the need for intubation in COVID-19 patients experiencing respiratory failure in ICUs.
  • Conducted across 34 ICUs in France, the SOHO-COVID trial involved 711 patients, randomly assigned to receive either high-flow oxygen or standard oxygen.
  • Results showed no significant difference in mortality rates at day 28 between the two groups, with 10% mortality for high-flow and 11% for standard oxygen, suggesting both methods are similarly effective.
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Background: The Clavien-Dindo classification, used to describe postoperative complications, does not take into account patient perception of severity. Our main objective was to assess women's perception of postoperative pelvic floor repair complications and compare it to the classification of Clavien-Dindo.

Methods: Women and surgeons participating in the VIGI-MESH registry concerning pelvic floor repair surgery were invited to quote their perception of complication severity through a survey based on 30 clinical vignettes.

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Background: Heart failure (HF) is a growing complication and one of the leading causes of mortality in people living with type 2 diabetes (T2D). Among the possible causes, the excess of red meat and the insufficiency of vegetables consumption are suspected. Such an alimentation is associated with nutritional biomarkers, including trimethylamine N-oxide (TMAO) and its precursors.

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Introduction: The European Society of Cardiology (ESC) 2020 guidelines propose an algorithm for in-hospital management of non-ST-elevation myocardial infarction (NSTEMI) based on risk stratification according to clinical, electrocardiographic, and biological data. However, out-of-hospital management is not codified.

Study Objective: The objective of the present study was to evaluate the role of high-sensitivity cardiac troponin-I in out-of-hospital management of NSTEMI by Emergency Medical Services (EMS).

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Article Synopsis
  • The study investigates whether high-flow nasal oxygen (HFNO) alone can reduce 28-day mortality in immunocompromised patients with acute respiratory failure compared to a combination of HFNO and non-invasive ventilation (NIV).
  • The FLORALI-IM trial includes adults in 29 ICUs, utilizing random assignment to either HFNO alone or alternating between NIV and HFNO, with strict exclusion criteria for certain severe conditions.
  • The goal is to evaluate the effectiveness of HFNO alone as a potentially safer alternative to NIV for patients with serious respiratory issues.
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