Olivier Guisset
University of Bordeaux
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Featured researches published by Olivier Guisset.
European Respiratory Journal | 2015
Nancy Kentish-Barnes; Marine Chaize; Valérie Seegers; Stéphane Legriel; Alain Cariou; Samir Jaber; Jean-Yves Lefrant; Bernard Floccard; Anne Renault; Isabelle Vinatier; Armelle Mathonnet; Danielle Reuter; Olivier Guisset; Zoé Cohen-Solal; Christophe Cracco; Amélie Seguin; Jacques Durand-Gasselin; Béatrice Eon; Marina Thirion; Jean-Philippe Rigaud; Bénédicte Philippon-Jouve; Laurent Argaud; Renaud Chouquer; Mélanie Adda; Céline Dedrie; Hugues Georges; Eddy Lebas; Nathalie Rolin; Pierre-Edouard Bollaert; Lucien Lecuyer
An increased proportion of deaths occur in the intensive care unit (ICU). We performed this prospective study in 41 ICUs to determine the prevalence and determinants of complicated grief after death of a loved one in the ICU. Relatives of 475 adult patients were followed up. Complicated grief was assessed at 6 and 12 months using the Inventory of Complicated Grief (cut-off score >25). Relatives also completed the Hospital Anxiety and Depression Scale at 3 months, and the Revised Impact of Event Scale for post-traumatic stress disorder symptoms at 3, 6 and 12 months. We used a mixed multivariate logistic regression model to identify determinants of complicated grief after 6 months. Among the 475 patients, 282 (59.4%) had a relative evaluated at 6 months. Complicated grief symptoms were identified in 147 (52%) relatives. Independent determinants of complicated grief symptoms were either not amenable to changes (relative of female sex, relative living alone and intensivist board certification before 2009) or potential targets for improvements (refusal of treatment by the patient, patient died while intubated, relatives present at the time of death, relatives did not say goodbye to the patient, and poor communication between physicians and relatives). End-of-life practices, communication and loneliness in bereaved relatives may be amenable to improvements. End-of-life care and communication in the ICU are associated with the prevalence of complicated grief http://ow.ly/DCqjB
American Journal of Emergency Medicine | 2008
Etienne Puymirat; Matthieu Biais; Fabrice Camou; Jérôme Lefèvre; Olivier Guisset; Claude Gabinski
Lemierre syndrome is a rare clinical entity, characterized by thrombosis of the internal jugular vein that develops after an oropharyngeal infection. We report the case of a 22-year-old woman hospitalized initially for cellulitis of the face. In view of the aggravation of the clinical state (septic shock and multiple organ failure), a computed tomography of the neck was performed and revealed a thrombosis of the right internal and external jugular veins. The patient was treated with antibiotics, heparin, and by a surgical excision for the vascular lesions associated with ligation of jugular veins. The patient completely recovered from her infection.
Critical Care Medicine | 2015
L. Raffray; Isabelle Douchet; Jean-François Augusto; Jihad Youssef; Cécile Contin-Bordes; Christophe Richez; Pierre Duffau; Marie-Elise Truchetet; Jean-François Moreau; Charles Cazanave; Lionel Leroux; Gaelle Mourrissoux; Fabrice Camou; Benjamin Clouzeau; Pascale Jeannin; Yves Delneste; Claude Gabinski; Olivier Guisset; Estibaliz Lazaro; Patrick Blanco
Objectives:Innate immune system alterations, including dendritic cell loss, have been reproducibly observed in patients with septic shock and correlated to adverse outcomes or nosocomial infections. The goal of this study is to better understand the mechanisms behind this observation in order to better assess septic shock pathogenesis. Design:Prospective, controlled experimental study. Setting:Research laboratory at an academic medical center. Subjects:The study enrolled 71 patients, 49 with septic shock and 22 with cardiogenic shock. Seventeen healthy controls served as reference. In vitro monocyte-derived dendritic cells were generated from healthy volunteers. Interventions:Sera were assessed for their ability to promote in vitro dendritic cell death through flow cytometry detection in each group of patients. The percentage of apoptotic or necrotic dendritic cells was evaluated by annexin-V and propidium iodide staining. Measurements and Main Results:We observed that only patients with septic shock and not patients with pure cardiogenic shock were characterized by a rapid and profound loss of circulating dendritic cells. In vitro analysis revealed that sera from patients with septic shock induced higher dendritic cell death compared to normal sera or cardiogenic shock (p < 0.005). Sera from surviving patients induced dendritic cell death through a caspase-dependent apoptotic pathway, whereas sera from nonsurviving patients induced dendritic cell–regulated necrosis. Dendritic cell necrosis was not due to necroptosis but was dependent of the presence of circulating histone. The toxicity of histones toward dendritic cell could be prevented by recombinant human activated protein C. Finally, we observed a direct correlation between the levels of circulating histones in patients and the ability of the sera to promote dendritic cell–regulated necrosis. Conclusions:The study demonstrates a differential mechanism of dendritic cell death in patients with septic shock that is dependent on the severity of the disease.
The Journal of Allergy and Clinical Immunology | 2016
Isabelle Dupin; Benoit Allard; Annaig Ozier; Elise Maurat; Olga Ousova; Eva Delbrel; Thomas Trian; Hoang-Nam Bui; Claire Dromer; Olivier Guisset; Elodie Blanchard; Gilles Hilbert; Frédéric Vargas; Matthieu Thumerel; Roger Marthan; Pierre-Olivier Girodet; Patrick Berger
BACKGROUND Chronic obstructive pulmonary disease (COPD) is characterized by peribronchial fibrosis. The chronic course of COPD is worsened by recurrent acute exacerbations. OBJECTIVE The aim of the study was to evaluate the recruitment of blood fibrocytes in patients with COPD during exacerbations and, subsequently, to identify potential mechanisms implicated in such recruitment. METHODS Using flow cytometry, we quantified circulating fibrocytes and characterized their chemokine receptor expression in 54 patients with COPD examined during an acute exacerbation (V1) and 2 months afterward (V2) and in 40 control subjects. The role of the chemokines CXCL12 and CCL11 in fibrocyte migration was investigated by using a chemotaxis assay. Patients were followed for up to 3 years after V1. RESULTS We demonstrated a significantly increased number of circulating fibrocytes at V1 compared with control subjects. The number of circulating fibrocytes decreased at V2. A high percentage of circulating fibrocytes during exacerbation was associated with increased risk of death. The percentage of fibrocytes at V2 was negatively correlated with FEV1, forced vital capacity, FEV1/forced vital capacity ratio, transfer lung capacity of carbon monoxide, and Pao2. Fibrocytes highly expressed CXCR4 and CCR3, the chemokine receptors for CXCL12 and CCL11, respectively. Fibrocytes collected from patients with COPD at V1 had increased chemotactic migration in response to CXCL12 but not to CCL11 compared with those from control subjects. Plerixafor, a CXCR4 antagonist, decreased fibrocyte migration to plasma from patients with exacerbating COPD. CONCLUSION Blood fibrocytes are recruited during COPD exacerbations and related to mortality and low lung function. The CXCL12/CXCR4 axis is involved in such fibrocyte recruitment (Firebrob study; ClinicalTrials NCT01196832).
Medicine | 2013
Cédric Rafat; Kada Klouche; Jean-Damien Ricard; Jonathan Messika; Antoine Roch; Sonia Machado; Romain Sonneville; Olivier Guisset; Wilfried Pujol; Claude Guérin; Jean-Louis Teboul; Natacha Mrozek; Michael Darmon; Frank Chemouni; Matthieu Schmidt; Emmanuelle Mercier; Didier Dreyfuss; Stéphane Gaudry
AbstractFrance has recently witnessed a nationwide outbreak of measles. Data on severe forms of measles in adults are lacking. We sought to describe the epidemiologic, clinical, treatment, and prognostic aspects of the disease in adult patients who required admission to an intensive care unit (ICU). We performed a retrospective analysis of a cohort of 36 adults admitted to a total of 64 ICUs throughout France for complications of measles from January 1, 2009, to December 31, 2011. All cases of measles were confirmed by serologic testing and/or reverse transcription polymerase chain reaction.The cohort consisted of 21 male and 15 female patients, with a median age of 29.2 years (25th–75th interquartile range [IQR], 27.2–34.2 yr) and a median Simplified Acute Physiology Score (SAPS II) of 13 (IQR, 9–18). Among the 26 patients whose measles vaccination status was documented, none had received 2 injections. One patient had developed measles during childhood. Underlying comorbid conditions included chronic respiratory disease in 9 patients, immunosuppression in 7 patients, and obesity in 3 patients, while measles affected 5 pregnant women.Respiratory complications induced by measles infection led to ICU admission in 32 cases, and measles-related neurologic complications led to ICU admission in 2 cases. Two patients were admitted due to concurrent respiratory and neurologic complications.Bacterial superinfection of measles-related airway infection was suspected in 28 patients and was documented in 8. Four cases of community-acquired pneumonia, 6 cases of ventilator-associated pneumonia, 1 case of tracheobronchitis, and 2 cases of sinusitis were microbiologically substantiated.Of 11 patients who required mechanical ventilation, 9 developed acute respiratory distress syndrome (ARDS). Among the patients with ARDS, extraalveolar air leak complications occurred in 4 cases. Five patients died, all of whom were severely immunocompromised.On follow-up, 1 patient had severe chronic respiratory failure related to lung fibrosis, and 2 patients had mild lower limb paraparesis along with bladder dysfunction, both of which were ascribable to measles-induced encephalitis and myelitis. Among the 5 pregnant patients, the course of measles infection was uneventful, albeit 1 patient underwent emergent cesarean delivery because of fetal growth restriction.Measles is a disease with protean and potentially deceptive clinical manifestations, especially in the immunocompromised patient. Measles-associated pneumonitis and its complications, and less commonly postinfectious encephalomyelitis, are the main source of morbidity and mortality. In contrast with the usually benign course of the disease in immunocompetent patients, measles occurring in immunocompromised patients gives rise to lethal complications including ARDS, with or without bacterial superinfection. Other patients potentially at high risk for severe measles are young adults and pregnant women. Measles pneumonitis may predispose to air leak disease in patients using mechanical ventilation. To date, vaccination remains the most potent tool to control measles infection.
Critical Care Medicine | 2017
Nancy Kentish-Barnes; Zoé Cohen-Solal; Virginie Souppart; Marion Galon; Benoit Champigneulle; Marina Thirion; Marion Gilbert; Olivier Lesieur; Anne Renault; Maité Garrouste-Orgeas; Laurent Argaud; Marion Venot; Alexandre Demoule; Olivier Guisset; Isabelle Vinatier; Gilles Troché; Julien Massot; Samir Jaber; Caroline Bornstain; Véronique Gaday; René Robert; Jean-Philippe Rigaud; Raphaël Cinotti; Mélanie Adda; François Thomas; Elie Azoulay
Objectives: Family members of patients who die in the ICU often remain with unanswered questions and suffer from lack of closure. A letter of condolence may help bereaved relatives, but little is known about their experience of receiving such a letter. The objective of the study was to understand bereaved family members’ experience of receiving a letter of condolence. Design: Qualitative study using interviews with bereaved family members who received a letter of condolence and letters written by these family members to the ICU team. This study was designed to provide insight into the results of a larger randomized, controlled, multicenter study. Setting: Twenty-two ICUs in France. Subjects: Family members who lost a loved one in the ICU and who received a letter of condolence. Measurements and Main Results: Thematic analysis was used and was based on 52 interviews and 26 letters. Six themes emerged: 1) a feeling of support, 2) humanization of the medical system, 3) an opportunity for reflection, 4) an opportunity to describe their loved one, 5) continuity and closure, and 6) doubts and ambivalence. Possible difficulties emerged, notably the re-experience of the trauma, highlighting the absence of further support. Conclusions: This study describes the benefits of receiving a letter of condolence; mainly, it humanizes the medical institution (feeling of support, confirmation of the role played by the relative, supplemental information). However, this study also shows a common ambivalence about the letter of condolence’s benefit. Healthcare workers must strive to adapt bereavement follow-up to each individual situation.
Annals of Intensive Care | 2014
Cédric Daubin; L. Haddad; Dominique Folscheid; Alexandre Boyer; Ludivine Chalumeau-Lemoine; Olivier Guisset; Philippe Hubert; Jérôme Pillot; René Robert; Didier Dreyfuss
The death of a loved one is often an ordeal and a tragedy for those who witness it, as death is not merely the end of a life, but also the end of an existence, the loss of a unique individual who is special and irreplaceable. In some situations, end-of-life signs, such as agonal gasps, can be an almost unbearable “sight” because the physical manifestations are hard to watch and can lead to subjective interpretation and irrational fears. Ethical unease arises as the dying patient falls prey to death throes and to the manifestations of ebbing life and the physician can only stand by and watch. From this point on, medicine can put an end to suffering by the use of neuromuscular blockade, but in so doing life ceases at the same time. It is difficult, however, not to respond to the distress of loved ones and caregivers. The ethical problem then becomes the shift from the original ethical concern, i.e. the dying patient, to the patient’s loved ones. Is such a rupture due to a difference in nature or a difference in degree, given that the dying patient remains a person and not a thing as long as the body continues to lead its own life, expressed through movement and sound? Because there cannot be any simple and unequivocal answer to this question, the SRLF Ethics Commission is offering ethical reflections on end-of-life signs and symptoms in the intensive care setting, and on the use of neuromuscular blockade in this context, with presentations on the subject by two philosophers and members of the SRLF Ethics Commission, Ms Lise Haddad and Prof Dominique Folscheid. The SRLF Ethics Commission hopes to provide food for thought for everyone on this topic, which undoubtedly calls for further contributions, the aim being not to provide ready-made solutions or policy, but rather to allow everyone to ponder this question in all conscience.
Intensive Care Medicine | 2007
Olivier Guisset; Marie-Sarah Dilhuydy; Rodolphe Thiébaut; Jérôme Lefèvre; Fabrice Camou; Anne Sarrat; Claude Gabinski; Jean-François Moreau; Patrick Blanco
Intensive Care Medicine | 2013
Elie Azoulay; Achille Kouatchet; Samir Jaber; Jérôme Lambert; Ferhat Meziani; Matthieu Schmidt; David Schnell; Satar Mortaza; Matthieu Conseil; Xavier Tchenio; Patrick Herbecq; Pierre Andrivet; Emmanuel Guerot; Ariane Lafabrie; Sébastien Perbet; Laurent Camous; Ralf Janssen-Langenstein; François Collet; Jonathan Messika; Stéphane Legriel; Xavier Fabre; Olivier Guisset; Samia Touati; Sarah Kilani; Michael Alves; Alain Mercat; Thomas Similowski; Laurent Papazian; Anne-Pascale Meert; Sylvie Chevret
Intensive Care Medicine | 2017
Nancy Kentish-Barnes; Sylvie Chevret; Benoit Champigneulle; Marina Thirion; Virginie Souppart; Marion Gilbert; Olivier Lesieur; Anne Renault; Maité Garrouste-Orgeas; Laurent Argaud; Marion Venot; Alexandre Demoule; Olivier Guisset; Isabelle Vinatier; Gilles Troché; Julien Massot; Samir Jaber; Caroline Bornstain; Véronique Gaday; René Robert; Jean-Philippe Rigaud; Raphaël Cinotti; Mélanie Adda; François Thomas; Laure Calvet; Marion Galon; Zoé Cohen-Solal; Alain Cariou; Elie Azoulay