Publications by authors named "Sybille Merceron"

Background: Monoclonal gammopathy-associated capillary leak syndrome (MG-CLS) is a rare condition characterized by recurrent episodes of hypovolemic shock caused by a sudden increase in capillary permeability. The COVID-19 pandemic has been associated with a rise in MG-CLS episodes and increased mortality. We aimed to explore the association between MG-CLS and SARS-CoV-2 infection.

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Objective: Targeted temperature management (TTM), through its physiological effects on intracranial pressure, may impede the progression to brain death (BD) in severe anoxic brain injury post-cardiac arrest (CA). We examined the potential association between the use of TTM and the occurrence of BD after CA.

Design: Monocentric, retrospective study.

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Purpose: Data are scarce regarding the experience of critically ill patients at high risk of death. Identifying their concerns could allow clinicians to better meet their needs and align their end-of-life trajectory with their preferences and values. We aimed to identify concerns expressed by conscious patients at high risk of dying in the intensive care unit (ICU).

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Background: This study was carried out to compare characteristics and outcomes in patients with acute respiratory failure related to COVID-19 during first, second, and third waves.

Methods: We included consecutive adults admitted to the intensive care unit between March 2020 and July 2021. We compared three groups defined by the epidemic intake phase: waves 1 (W1), 2 (W2), and 3 (W3).

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Article Synopsis
  • The study aimed to analyze the characteristics and outcomes of adult patients admitted to ICUs for Convulsive Status Epilepticus (CSE), specifically comparing those with impaired functional status to those without.
  • Of 499 patients, 11.2% had a preadmission Glasgow Outcome Scale (GOS) score of 3, which indicated a higher need for treatment limitations and greater 1-year mortality compared to those with GOS scores of 4 or 5.
  • Factors linked to poorer outcomes included being older than 59, having serious preexisting conditions, experiencing refractory CSE, a cerebral cause of CSE, and higher Logistic Organ Dysfunction scores upon ICU admission.
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Natraemia is often abnormal in critically ill patients and may change rapidly during renal replacement therapy (RRT). This database study in a single intensive care unit (ICU) evaluated natraemia before and after the first RRT session for acute kidney injury. Of 252 patients who required RRT in 2018-2020, 215 were included.

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Introduction: Lumbar puncture is among the investigations used to identify various neurological conditions, including some that can cause cardiac arrest (CA). However, CA per se may alter cerebrospinal fluid (CSF) characteristics. Few studies have investigated CSF findings after CA.

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Background: Varicella-zoster virus (VZV) is one of the main viruses responsible of acute encephalitis. However, data on the prognosis and neurologic outcome of critically ill patients with VZV encephalitis are limited. We aimed to describe the clinical features of VZV encephalitis in the ICU and to identify factors associated with a favorable neurologic outcome.

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Article Synopsis
  • - The study examined the impact of ventilator type on hospital mortality for patients with ARDS due to COVID-19 in a French ICU from March 2020 to July 2021.
  • - Out of 189 patients, factors such as age over 70, immunodeficiency, and high serum creatinine levels were linked to higher mortality, while the type of ventilator used did not influence survival rates.
  • - Both ICU settings (standard vs. transient ICU with simpler ventilators) showed similar lengths of mechanical ventilation and ICU stays, indicating that less complex ventilators did not lead to worse patient outcomes.
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Background: In relatives of patients dying in intensive care units (ICUs), inadequate team support can increase the prevalence of prolonged grief and other psychological harm. We aimed to evaluate whether a proactive communication and support intervention would improve relatives' outcomes.

Methods: We undertook a prospective, multicentre, cluster randomised controlled trial in 34 ICUs in France, to compare standard care with a physician-driven, nurse-aided, three-step support strategy for families throughout the dying process, following a decision to withdraw or withhold life support.

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Background: Stenotrophomonas maltophilia (SM) is increasingly identified in intensive care unit (ICU). This study aim to identify risk factors for SM ventilator-associated pneumonia (VAP) and whether it affects ICU mortality METHODS: Two nested matched case-control studies were performed based in OUTCOMEREA database. The first episodes of SM-VAP patients were matched with two different control groups: VAP due to other micro-organisms (VAP-other) and Pseudomonas aeruginosa VAP (Pyo-VAP).

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Purpose: Bereavement research has helped to improve end-of-life practices in the ICU. However, few studies have explored bereaved relatives experience of research participation in this context. We aimed to explore the experience of bereaved relatives' participation in the ARREVE study which included three telephone follow-up calls to complete several quantitative tools.

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Objectives: Neutropenic enterocolitis occurs in about 5.3% of patients hospitalized for hematologic malignancies receiving chemotherapy. Data from critically ill patients with neutropenic enterocolitis are scarce.

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Purpose: Relatives of intensive care unit (ICU) patients suffer emotional distress that impairs their ability to acquire the information they need from the staff. We sought to evaluate whether providing relatives with a list of important questions was associated with better comprehension on day 5.

Methods: Randomized, parallel-group trial.

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Purpose: Few outcome data are available about morbidity associated with endotracheal intubation modalities in critically ill patients with convulsive status epilepticus. We compared etomidate versus sodium thiopental for emergency rapid sequence intubation in patients with out-of-hospital convulsive status epilepticus.

Methods: Patients admitted to our intensive care unit in 2006-2015 were studied retrospectively.

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Background: While S-100B protein and Neuron-Specific Enolase (NSE) dosages have been extensively investigated for neurological prognostication after cardiac arrest (CA), there is no data about their ability to detect a cerebrovascular cause of CA. We assessed the utility of plasma S-100B protein and NSE measurements for early diagnosis of primary neurological cause in resuscitated CA patients.

Patients And Methods: Case control study based on two prospectively acquired CA databases.

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Purpose: The relative merits of immediate extubation versus terminal weaning for mechanical ventilation withdrawal are controversial, particularly regarding the experience of patients and relatives.

Methods: This prospective observational multicentre study (ARREVE) was done in 43 French ICUs to compare terminal weaning and immediate extubation, as chosen by the ICU team. Terminal weaning was a gradual decrease in the amount of ventilatory assistance and immediate extubation was extubation without any previous decrease in ventilatory assistance.

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Objective: Systemic capillary-leak syndrome is a very rare cause of recurrent hypovolemic shock. Few data are available on its clinical manifestations, laboratory findings, and outcomes of those patients requiring ICU admission. This study was undertaken to describe the clinical pictures and ICU management of severe systemic capillary-leak syndrome episodes.

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Background:: Cuff leak test was developed to predict the occurrence of post-extubation stridor (PES). This study evaluated the diagnostic performance of this test in unselected critically ill patients.

Methods:: Multicenter prospective study including unselected ventilated patients at the time of their first planned extubation.

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Purpose: Few outcome data are available about temperature management after intraoperative cardiac arrest (IOCA). We describe targeted temperature management (TTM) (32-34 °C) modalities, adverse events, and association with 1-year functional outcome in patients with IOCA.

Methods: Patients admitted to 11 ICUs after IOCA in 2008-2013 were studied retrospectively.

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Background: Convulsive status epilepticus often results in permanent neurologic impairment. We evaluated the effect of induced hypothermia on neurologic outcomes in patients with convulsive status epilepticus.

Methods: In a multicenter trial, we randomly assigned 270 critically ill patients with convulsive status epilepticus who were receiving mechanical ventilation to hypothermia (32 to 34°C for 24 hours) in addition to standard care or to standard care alone; 268 patients were included in the analysis.

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Background: Obesity prevalence has dramatically increased over recent years and is associated with cardiovascular diseases, but data are lacking on its prognostic impact in out-of-hospital cardiac arrest (OHCA) patients.

Methods: Data of all consecutive OHCA patients admitted in two cardiac arrest centers from Paris and suburbs between 2005 and 2012 were prospectively collected. Patients treated by therapeutic hypothermia (TH) were included in the analysis.

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Background: Posterior reversible encephalopathy syndrome (PRES) has well-established links with several drugs. Whether a link also exists with serotonin-norepinephrine reuptake inhibitor such as duloxetine is unclear.

Methods: We report on a patient who developed PRES with a coma and myoclonus related to hypertensive encephalopathy a few days after starting duloxetine treatment.

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