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Thierry G, Beck F, Hardy PY, Kaba A, Blanjean A, Vandermeulen M, Honoré P, Joris J, Bonhomme V, Detry O. Impact of enhanced recovery program implementation on postoperative outcomes after liver surgery: a monocentric retrospective study. Surg Endosc 2024:10.1007/s00464-024-10796-w. [PMID: 38653900 DOI: 10.1007/s00464-024-10796-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 03/10/2024] [Indexed: 04/25/2024]
Abstract
INTRODUCTION It is still unclear whether enhanced recovery programs (ERPs) reduce postoperative morbidity after liver surgery. This study investigated the effect on liver surgery outcomes of labeling as a reference center for ERP. MATERIALS AND METHODS Perioperative data from 75 consecutive patients who underwent hepatectomy in our institution after implementation and labeling of our ERP were retrospectively compared to 75 patients managed before ERP. Length of hospital stay, postoperative complications, and adherence to protocol were examined. RESULTS Patient demographics, comorbidities, and intraoperative data were similar in the two groups. Our ERP resulted in shorter length of stay (3 days [1-6] vs. 4 days [2-7.5], p = 0.03) and fewer postoperative complications (24% vs. 45.3%, p = 0.0067). This reduction in postoperative morbidity can be attributed exclusively to a lower rate of minor complications (Clavien-dindo grade < IIIa), and in particular to a lower rate of postoperative ileus, after labeling. (5.3% vs. 25.3%, p = 0.0019). Other medical and surgical complications were not significantly reduced. Adherence to protocol improved after labeling (17 [16-18] vs. 14 [13-16] items, p < 0.001). CONCLUSIONS The application of a labeled enhanced recovery program for liver surgery was associated with a significant shortening of hospital stay and a halving of postoperative morbidity, mainly ileus.
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Affiliation(s)
- Gabriel Thierry
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium.
- Groupe Francophone de Réhabilitation Améliorée Après Chirurgie (GRACE ; Francophone Group for Enhanced Recovery After Surgery), Beaumont, France.
- Inflammation and Enhanced Rehabilitation Laboratory (Regional Anesthesia and Analgesia), GIGA-I3 Thematic Unit, GIGA-Research, Liege University, Liege, Belgium.
- CREDEC: Centre de Recherche et d'Enseignement du Département de Chirurgie GIGA Metabolism, University of Liege, Domaine du Sart Tilman, Liege, Belgium.
| | - Florian Beck
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
- Anesthesia and Perioperative Neuroscience Laboratory, GIG-Consciousness Thematic Unit, GIGA-Research, Liege University, Liege, Belgium
| | - Pierre-Yves Hardy
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
- Groupe Francophone de Réhabilitation Améliorée Après Chirurgie (GRACE ; Francophone Group for Enhanced Recovery After Surgery), Beaumont, France
- Inflammation and Enhanced Rehabilitation Laboratory (Regional Anesthesia and Analgesia), GIGA-I3 Thematic Unit, GIGA-Research, Liege University, Liege, Belgium
| | - Abdourahamane Kaba
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
- Inflammation and Enhanced Rehabilitation Laboratory (Regional Anesthesia and Analgesia), GIGA-I3 Thematic Unit, GIGA-Research, Liege University, Liege, Belgium
| | - Arielle Blanjean
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
- Groupe Francophone de Réhabilitation Améliorée Après Chirurgie (GRACE ; Francophone Group for Enhanced Recovery After Surgery), Beaumont, France
| | - Morgan Vandermeulen
- Department of Abdominal Surgery and Transplantation, Liege University Hospital, Liege, Belgium
- CREDEC: Centre de Recherche et d'Enseignement du Département de Chirurgie GIGA Metabolism, University of Liege, Domaine du Sart Tilman, Liege, Belgium
| | - Pierre Honoré
- Department of Abdominal Surgery and Transplantation, Liege University Hospital, Liege, Belgium
| | - Jean Joris
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
- Groupe Francophone de Réhabilitation Améliorée Après Chirurgie (GRACE ; Francophone Group for Enhanced Recovery After Surgery), Beaumont, France
| | - Vincent Bonhomme
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
- Anesthesia and Perioperative Neuroscience Laboratory, GIG-Consciousness Thematic Unit, GIGA-Research, Liege University, Liege, Belgium
| | - Olivier Detry
- Department of Abdominal Surgery and Transplantation, Liege University Hospital, Liege, Belgium
- CREDEC: Centre de Recherche et d'Enseignement du Département de Chirurgie GIGA Metabolism, University of Liege, Domaine du Sart Tilman, Liege, Belgium
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Amabili P, Debroux G, Lancellotti P, Hans G, Bonhomme V, Tchana-Sato V. Use of percutaneous ventricular assist device as bridge to high risk combined heart valve surgery. Acta Cardiol 2024:1-6. [PMID: 38586991 DOI: 10.1080/00015385.2024.2336678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 03/18/2024] [Indexed: 04/09/2024]
Affiliation(s)
- Philippe Amabili
- Department of Anesthesiology, University Hospital Center, Liege, Belgium
| | - Gauthier Debroux
- Department of Anesthesiology, University Hospital Center, Liege, Belgium
| | | | - Grégory Hans
- Department of Anesthesiology, University Hospital Center, Liege, Belgium
| | - Vincent Bonhomme
- Department of Anesthesiology, University Hospital Center, Liege, Belgium
| | - Vincent Tchana-Sato
- Department of Cardiovascular and Thoracic Surgery, University Hospital Center, Liege, Belgium
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Safy O, Rousseaux F, Faymonville ME, Libbrecht D, Fontaine R, Raaf M, Staquet C, Tasset H, Bonhomme V, Vanhaudenhuyse A, Bicego A. Virtual reality hypnosis prior to radiofrequency thermocoagulation for patients with chronic pain: an exploratory clinical trial. Front Psychol 2024; 15:1331826. [PMID: 38476394 PMCID: PMC10927839 DOI: 10.3389/fpsyg.2024.1331826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 01/30/2024] [Indexed: 03/14/2024] Open
Abstract
Background The management of chronic pain may involve an array of tools, including radiofrequency thermocoagulation (Rf-Tc) of sensory nerve terminals. Like many other invasive procedures, Rf-Tc can generate anxiety in a lot of patients, either during the expectation of the procedure or in the course of it. Virtual reality hypnosis (VRH) is a promising tool for managing anxiety and pain in several situations, but its anxiolytic property has not been investigated in participants with chronic pain and going through a Rf-Tc procedure. Objectives The goal of this study was to evaluate the effectiveness of VRH for reducing self-assessed anxiety in participants with chronic pain, when received in preparation for Rf-Tc. Materials and methods This prospective, controlled trial was conducted in the Interdisciplinary Algology Centre of the University Hospital of Liège (Belgium). Participants were assigned to two groups: VRH or control (usual care). Assessment was carried-out at 4 time points: T0 (one week before Rf-Tc); T1 (pre-intervention, on the day of Rf-Tc); T2 (immediately after the VRH intervention outside of the Rf-Tc room); and T3 (right after Rf-Tc). Medical, sociodemographic data, anxiety trait and immersive tendencies were collected at T0. Anxiety state and pain intensity were assessed at each time points. Satisfaction was examined at T3. Results Forty-two participants were quasi-randomly assigned to the VRH or control group. No statistically significant interaction group by time was observed regarding all measured variables, including primary endpoint. However, a significant effect of time was found for anxiety and pain when considering both groups together, toward a progressive reduction. Conclusion In the context of our study, there appears to be no significant effect of VRH at reducing anxiety in participants with chronic pain undergoing Rf-Tc. Anxiety decreases along the procedure, while pain is attenuated by the local anesthetic infiltration of the Rf site. Our results suggest that the presence of a caregiver throughout the procedure might explain the progressive decrease in anxiety. Future randomized controlled trials are needed to precisely study the effectiveness of the VRH tool, and the possibility of using it as a complementary approach for anxiety during invasive procedures.
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Affiliation(s)
- Othmane Safy
- Sensation and Perception Research Group, GIGA-Consciousness, University of Liège, Liège, Belgium
| | - Floriane Rousseaux
- Sensation and Perception Research Group, GIGA-Consciousness, University of Liège, Liège, Belgium
- Medical Hypnosis Laboratory, MaisonNeuve-Rosemont Hospital Research Center, University of Montreal, Montreal, QC, Canada
| | - Marie-Elisabeth Faymonville
- Sensation and Perception Research Group, GIGA-Consciousness, University of Liège, Liège, Belgium
- Interdisciplinary Algology Center, University Hospital of Liège, Liège, Belgium
- Oncology Integrated Arsen Bury Center, University Hospital of Liège, Liège, Belgium
| | - Dominique Libbrecht
- Interdisciplinary Algology Center, University Hospital of Liège, Liège, Belgium
| | | | - Melissa Raaf
- Department of Anesthesia and Algology, CHC Mont Legia, Liège, Belgium
| | - Cécile Staquet
- Interdisciplinary Algology Center, University Hospital of Liège, Liège, Belgium
- Anesthesia and Perioperative Neuroscience Laboratory, GIGA-Consciousness, Liège University, Liège, Belgium
- Department of Anesthesia and Intensive Care Medicine, Liège University Hospital, Liège, Belgium
| | - Hadrien Tasset
- Interdisciplinary Algology Center, University Hospital of Liège, Liège, Belgium
- Department of Anesthesia and Intensive Care Medicine, Liège University Hospital, Liège, Belgium
| | - Vincent Bonhomme
- Interdisciplinary Algology Center, University Hospital of Liège, Liège, Belgium
- Anesthesia and Perioperative Neuroscience Laboratory, GIGA-Consciousness, Liège University, Liège, Belgium
- Department of Anesthesia and Intensive Care Medicine, Liège University Hospital, Liège, Belgium
| | - Audrey Vanhaudenhuyse
- Sensation and Perception Research Group, GIGA-Consciousness, University of Liège, Liège, Belgium
- Medical Hypnosis Laboratory, MaisonNeuve-Rosemont Hospital Research Center, University of Montreal, Montreal, QC, Canada
| | - Aminata Bicego
- Sensation and Perception Research Group, GIGA-Consciousness, University of Liège, Liège, Belgium
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Cecconi B, Montupil J, Mortaheb S, Panda R, Sanders RD, Phillips C, Alnagger N, Remacle E, Defresne A, Boly M, Bahri MA, Lamalle L, Laureys S, Gosseries O, Bonhomme V, Annen J. Study protocol: Cerebral characterization of sensory gating in disconnected dreaming states during propofol anesthesia using fMRI. Front Neurosci 2024; 18:1306344. [PMID: 38419667 PMCID: PMC10900985 DOI: 10.3389/fnins.2024.1306344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 01/29/2024] [Indexed: 03/02/2024] Open
Abstract
Background Disconnected consciousness describes a state in which subjective experience (i.e., consciousness) becomes isolated from the external world. It appears frequently during sleep or sedation, when subjective experiences remain vivid but are unaffected by external stimuli. Traditional methods of differentiating connected and disconnected consciousness, such as relying on behavioral responsiveness or on post-anesthesia reports, have demonstrated limited accuracy: unresponsiveness has been shown to not necessarily equate to unconsciousness and amnesic effects of anesthesia and sleep can impair explicit recollection of events occurred during sleep/sedation. Due to these methodological challenges, our understanding of the neural mechanisms underlying sensory disconnection remains limited. Methods To overcome these methodological challenges, we employ a distinctive strategy by combining a serial awakening paradigm with auditory stimulation during mild propofol sedation. While under sedation, participants are systematically exposed to auditory stimuli and questioned about their subjective experience (to assess consciousness) and their awareness of the sounds (to evaluate connectedness/disconnectedness from the environment). The data collected through interviews are used to categorize participants into connected and disconnected consciousness states. This method circumvents the requirement for responsiveness in assessing consciousness and mitigates amnesic effects of anesthesia as participants are questioned while still under sedation. Functional MRI data are concurrently collected to investigate cerebral activity patterns during connected and disconnected states, to elucidate sensory disconnection neural gating mechanisms. We examine whether this gating mechanism resides at the thalamic level or results from disruptions in information propagation to higher cortices. Furthermore, we explore the potential role of slow-wave activity (SWA) in inducing disconnected consciousness by quantifying high-frequency BOLD oscillations, a known correlate of slow-wave activity. Discussion This study represents a notable advancement in the investigation of sensory disconnection. The serial awakening paradigm effectively mitigates amnesic effects by collecting reports immediately after regaining responsiveness, while still under sedation. Ultimately, this research holds the potential to understand how sensory gating is achieved at the neural level. These biomarkers might be relevant for the development of sensitive anesthesia monitoring to avoid intraoperative connected consciousness and for the assessment of patients suffering from pathologically reduced consciousness. Clinical trial registration European Union Drug Regulating Authorities Clinical Trials Database (EudraCT), identifier 2020-003524-17.
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Affiliation(s)
- Benedetta Cecconi
- Coma Science Group, GIGA-Consciousness, GIGA Institute, University of Liège, Liège, Belgium
- Centre du Cerveau, University Hospital of Liège, Liège, Belgium
| | - Javier Montupil
- Anesthesia and Perioperative Neuroscience Laboratory, GIGA-Consciousness, GIGA Institute, University of Liège, Liège, Belgium
- University Department of Anesthesia and Intensive Care Medicine, Centre Hospitalier Régional de la Citadelle (CHR Citadelle), Liège, Belgium
| | - Sepehr Mortaheb
- Physiology of Cognition Research Lab, GIGA-Consciousness, GIGA Institute, University of Liège, Liege, Belgium
| | - Rajanikant Panda
- Coma Science Group, GIGA-Consciousness, GIGA Institute, University of Liège, Liège, Belgium
- Centre du Cerveau, University Hospital of Liège, Liège, Belgium
| | - Robert D. Sanders
- Central Clinical School, Sydney Medical School & NHMRC Clinical Trials Centre, University of Sydney, Camperdown, NSW, Australia
- Department of Anaesthetics & Institute of Academic Surgery, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | - Christophe Phillips
- GIGA-CRC—In vivo Imaging—Neuroimaging, Data Acquisition and Processing, GIGA Institute, University of Liège, Liège, Belgium
| | - Naji Alnagger
- Coma Science Group, GIGA-Consciousness, GIGA Institute, University of Liège, Liège, Belgium
- Centre du Cerveau, University Hospital of Liège, Liège, Belgium
| | - Emma Remacle
- Coma Science Group, GIGA-Consciousness, GIGA Institute, University of Liège, Liège, Belgium
| | - Aline Defresne
- Anesthesia and Perioperative Neuroscience Laboratory, GIGA-Consciousness, GIGA Institute, University of Liège, Liège, Belgium
- University Department of Anesthesia and Intensive Care Medicine, Centre Hospitalier Régional de la Citadelle (CHR Citadelle), Liège, Belgium
- Department of Anesthesia and Intensive Care Medicine, Liège University Hospital, Liège, Belgium
| | - Melanie Boly
- Department of Psychiatry, Wisconsin Institute for Sleep and Consciousness, University of Wisconsin, Madison, WI, United States
| | - Mohamed Ali Bahri
- GIGA-CRC—In vivo Imaging—Aging & Memory, GIGA Institute, University of Liège, Liège, Belgium
| | - Laurent Lamalle
- GIGA-CRC—In vivo Imaging—Aging & Memory, GIGA Institute, University of Liège, Liège, Belgium
| | - Steven Laureys
- Coma Science Group, GIGA-Consciousness, GIGA Institute, University of Liège, Liège, Belgium
- Centre du Cerveau, University Hospital of Liège, Liège, Belgium
- Cervo Brain Research Centre, University Institute in Mental Health of Quebec, Québec, QC, Canada
- Consciousness Science Institute, Hangzhou Normal University, Hangzhou, China
| | - Olivia Gosseries
- Coma Science Group, GIGA-Consciousness, GIGA Institute, University of Liège, Liège, Belgium
- Centre du Cerveau, University Hospital of Liège, Liège, Belgium
| | - Vincent Bonhomme
- Anesthesia and Perioperative Neuroscience Laboratory, GIGA-Consciousness, GIGA Institute, University of Liège, Liège, Belgium
- Department of Anesthesia and Intensive Care Medicine, Liège University Hospital, Liège, Belgium
| | - Jitka Annen
- Coma Science Group, GIGA-Consciousness, GIGA Institute, University of Liège, Liège, Belgium
- Centre du Cerveau, University Hospital of Liège, Liège, Belgium
- Department of Data Analysis, University of Ghent, Ghent, Belgium
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Staquet C, Vanhaudenhuyse A, Kandeepan S, Sanders RD, Ribeiro de Paula D, Brichant JF, Laureys S, Bonhomme V, Soddu A. Changes in Intrinsic Connectivity Networks Topology Across Levels of Dexmedetomidine-Induced Alteration of Consciousness. Anesth Analg 2024:00000539-990000000-00713. [PMID: 38289856 DOI: 10.1213/ane.0000000000006799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
BACKGROUND Human consciousness is generally thought to emerge from the activity of intrinsic connectivity networks (resting-state networks [RSNs]) of the brain, which have topological characteristics including, among others, graph strength and efficiency. So far, most functional brain imaging studies in anesthetized subjects have compared wakefulness and unresponsiveness, a state considered as corresponding to unconsciousness. Sedation and general anesthesia not only produce unconsciousness but also phenomenological states of preserved mental content and perception of the environment (connected consciousness), and preserved mental content but no perception of the environment (disconnected consciousness). Unresponsiveness may be seen during unconsciousness, but also during disconnectedness. Deep dexmedetomidine sedation is frequently a state of disconnected consciousness. In this study, we were interested in characterizing the RSN topology changes across 4 different and steady-state levels of dexmedetomidine-induced alteration of consciousness, namely baseline (Awake, drug-free state), Mild sedation (drowsy, still responding), Deep sedation (unresponsive), and Recovery, with a focus on changes occurring between a connected consciousness state and an unresponsiveness state. METHODS A functional magnetic resonance imaging database acquired in 14 healthy volunteers receiving dexmedetomidine sedation was analyzed using a method combining independent component analysis and graph theory, specifically looking at changes in connectivity strength and efficiency occurring during the 4 above-mentioned dexmedetomidine-induced altered consciousness states. RESULTS Dexmedetomidine sedation preserves RSN architecture. Unresponsiveness during dexmedetomidine sedation is mainly characterized by a between-networks graph strength alteration and within-network efficiency alteration of lower-order sensory RSNs, while graph strength and efficiency in higher-order RSNs are relatively preserved. CONCLUSIONS The differential dexmedetomidine-induced RSN topological changes evidenced in this study may be the signature of inadequate processing of sensory information by lower-order RSNs, and of altered communication between lower-order and higher-order networks, while the latter remain functional. If replicated in an experimental paradigm distinguishing, in unresponsive subjects, disconnected consciousness from unconsciousness, such changes would sustain the hypothesis that disconnected consciousness arises from altered information handling by lower-order sensory networks and altered communication between lower-order and higher-order networks, while the preservation of higher-order networks functioning allows for an internally generated mental content (or dream).
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Affiliation(s)
- Cecile Staquet
- From the Anesthesia and Perioperative Neuroscience Laboratory, GIGA-Consciousness, Liege University, Liege, Belgium
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
- GIGA-In Vivo Imaging (CRC) Platform, GIGA-Research, Liege University, Liege, Belgium
- Interdisciplinary Center of Algology, Liege University Hospital, Liege, Belgium
| | - Audrey Vanhaudenhuyse
- Interdisciplinary Center of Algology, Liege University Hospital, Liege, Belgium
- Sensation & Perception Research Group, GIGA-Consciousness, Liege University, Liege, Belgium
| | - Sivayini Kandeepan
- Department of Physics and Astronomy, Western Institute for Neuroscience, University of Western Ontario, London, Ontario, Canada
- Department of Physics, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
| | - Robert D Sanders
- University of Sydney, Sydney, New South Wales, Australia
- Department of Anaesthetics, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
- Institute of Academic Surgery, Sydney, New South Wales, Australia
| | - Demetrius Ribeiro de Paula
- Donders Institute for Brain Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, Netherlands
| | - Jean François Brichant
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
| | - Steven Laureys
- Coma Science Group, GIGA-Consciousness, Liege University, Liege, Belgium; and
- Centre du Cerveau, Liege University Hospital, Liege, Belgium
| | - Vincent Bonhomme
- From the Anesthesia and Perioperative Neuroscience Laboratory, GIGA-Consciousness, Liege University, Liege, Belgium
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
- Institute of Academic Surgery, Sydney, New South Wales, Australia
- Donders Institute for Brain Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, Netherlands
| | - Andrea Soddu
- Department of Physics and Astronomy, Western Institute for Neuroscience, University of Western Ontario, London, Ontario, Canada
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Javillier B, Grandjean F, Ounas K, Gautier N, Meunier P, Bonhomme V, Deflandre E. Effect of left paratracheal pressure on left carotid blood flow. Acta Anaesthesiol Scand 2024; 68:51-55. [PMID: 37795808 DOI: 10.1111/aas.14328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 08/30/2023] [Accepted: 09/03/2023] [Indexed: 10/06/2023]
Abstract
INTRODUCTION Gautier et al. demonstrated that a compression in the left paratracheal region (left paratracheal pressure, LPP) can be used to seal the oesophagus. However, at this level, the left common carotid artery is very close to the carotid that could be affected during the manipulation. This study aimed to assess the hemodynamic effects of LPP on the carotid blood flow. METHODS We prospectively included 47 healthy adult volunteers. We excluded pregnant women and people with anomalies of the carotid arteries. The common and internal carotid arteries were preliminarily studied with ultrasounds to exclude atheromatous plaques or vascular malformation. A planimetry of the common and internal carotid arteries was performed. Doppler echography served to measure the peak systolic (PSV) and end-diastolic velocities (EDV) in the common and internal carotid arteries. All measurements were repeated while applying LPP. RESULTS Forty-seven participants were enrolled (32 women; mean [SD] age: 42 [13] years). The mean PSV difference [95% CI] in the left common carotid artery before and after LPP at the group level was -15.30 [-31.09 to 0.48] cm s-1 (p = .14). The mean surface difference [95% CI] in the left common carotid artery before and after LPP was 24.52 [6.11-42.92] mm2 (p = .11). Similarly, the same surface at the level of the left internal carotid artery changed by -18.89 [-51.59 to 13.80] mm2 after LPP (p = .58). CONCLUSIONS Our results suggest that LPP does not have a significant effect on carotid blood flow in individuals without a carotid pathology. However, the safety of the manoeuvre should be evaluated in patients at risk of carotid anomalies.
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Affiliation(s)
- Benjamin Javillier
- Department of Anesthesia, Clinique Saint-Luc de Bouge, Namur, Belgium
- Liege University, Liege, Belgium
| | | | - Karim Ounas
- Department of Radiology, Liege University, Liege, Belgium
| | - Nicolas Gautier
- Department of Anesthesia, Clinique Sainte-Anne Saint-Remi, Brussels, Belgium
| | - Paul Meunier
- Department of Radiology, Liege University Hospital and Liege University, Liege, Belgium
| | - Vincent Bonhomme
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
- Anesthesia and Intensive Care Laboratory, GIGA-Consciousness Thematic Unit, GIGA-Research, Liege University, Liege, Belgium
| | - Eric Deflandre
- Department of Anesthesia, Clinique Saint-Luc de Bouge, Namur, Belgium
- Department of Ambulatory Surgery, Clinique Saint-Luc de Bouge, Namur, Belgium
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Houben AM, Crepy M, Senard M, Bonhomme V, Tchana-Sato V, Hans G. Preoperative continuation of aspirin before isolated heart valve surgery and postoperative bleeding and transfusion: a single-center retrospective study. Acta Chir Belg 2023:1-7. [PMID: 38146908 DOI: 10.1080/00015458.2023.2298097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 12/18/2023] [Indexed: 12/27/2023]
Abstract
BACKGROUND The risks and benefits of preoperative aspirin continuation in patients undergoing isolated heart valve replacement surgery are unclear. We investigated the effect of aspirin continuation on the risk of bleeding and transfusion in these patients. METHODS In this single center, retrospective study, among 474 adult patients who underwent isolated heart valve surgery between April 2013 and June 2018, 269 continued aspirin within 5 days before surgery (aspirin group) and 205 patients did not take or stopped aspirin no later than 5 days before surgery (non-aspirin group). The chi-square test, the Mann-Whitney U-test, and the Student's T-test were used to compare data between the groups. Univariate and Multivariate logistic regressions were used to assess crude and adjusted relationships between outcome and exposure. RESULTS The primary outcome, red blood cell (RBC) transfusion, occurred in 59 patients (22%) of the aspirin group and in 24 patients (12%) of the non-aspirin group (p = 0.004). After adjustment for confounding factors, continuation of aspirin was no longer associated with RBC transfusion (aOR1.8;95%CI,0.98-3.2;p = 0.06). The amount of allogenic blood products, the incidence of surgical re-exploration for bleeding, the volume of re-transfused cell-saved blood, and the cumulative chest tube drainage during the first 24 postoperative hours were similar between groups. CONCLUSION Preoperative continuation of aspirin in patients undergoing isolated heart valve surgery is neither associated with a higher incidence of RBC transfusion, nor with larger perioperative blood loss, or more frequent surgical revision for bleeding. TRIAL REGISTRATION Clinicaltrials.gov (NCT05151796).
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Affiliation(s)
- Alan M Houben
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
| | - Margaux Crepy
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
| | - Marc Senard
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
| | - Vincent Bonhomme
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
- Anesthesia and Perioperative Neuroscience Laboratory, GIGA-Consciousness Thematic Unit, GIGA-Research, Liege University, Liege, Belgium
| | - Vincent Tchana-Sato
- Department of Cardiovascular Surgery, Liege University Hospital, Liege, Belgium
| | - Gregory Hans
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
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Montupil J, Cardone P, Staquet C, Bonhomme A, Defresne A, Martial C, Alnagger NL, Gosseries O, Bonhomme V. The nature of consciousness in anaesthesia. BJA Open 2023; 8:100224. [PMID: 37780201 PMCID: PMC10539891 DOI: 10.1016/j.bjao.2023.100224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 08/28/2023] [Indexed: 10/03/2023]
Abstract
Neuroscientists agree on the value of locating the source of consciousness within the brain. Anaesthesiologists are no exception, and have their own operational definition of consciousness based on phenomenological observations during anaesthesia. The full functional correlates of consciousness are yet to be precisely identified, however rapidly evolving progress in this scientific domain has yielded several theories that attempt to model the generation of consciousness. They have received variable support from experimental observations, including those involving anaesthesia and its ability to reversibly modulate different aspects of consciousness. Aside from the interest in a better understanding of the mechanisms of consciousness, exploring the functional tenets of the phenomenological consciousness states of general anaesthesia has the potential to ultimately improve patient management. It could facilitate the design of specific monitoring devices and approaches, aiming at reliably detecting each of the possible states of consciousness during an anaesthetic procedure, including total absence of mental content (unconsciousness), and internal awareness (sensation of self and internal thoughts) with or without conscious perception of the environment (connected or disconnected consciousness, respectively). Indeed, it must be noted that unresponsiveness is not sufficient to infer absence of connectedness or even absence of consciousness. This narrative review presents the current knowledge in this field from a system-level, underlining the contribution of anaesthesia studies in supporting theories of consciousness, and proposing directions for future research.
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Affiliation(s)
- Javier Montupil
- Anesthesia and Perioperative Neuroscience Laboratory, Liege, Belgium
- Department of Anesthesia and Intensive Care Medicine, Liege, Belgium
- University Department of Anesthesia and Intensive Care Medicine, Citadelle Regional Hospital, Liege, Belgium
| | - Paolo Cardone
- Coma Science Group, GIGA-Consciousness Thematic Unit, GIGA-Research, Liege University, Liege, Belgium
- Centre du Cerveau, Liege University Hospital, Liege, Belgium
| | - Cécile Staquet
- Anesthesia and Perioperative Neuroscience Laboratory, Liege, Belgium
- Department of Anesthesia and Intensive Care Medicine, Liege, Belgium
| | - Arthur Bonhomme
- Coma Science Group, GIGA-Consciousness Thematic Unit, GIGA-Research, Liege University, Liege, Belgium
| | - Aline Defresne
- Anesthesia and Perioperative Neuroscience Laboratory, Liege, Belgium
- Department of Anesthesia and Intensive Care Medicine, Liege, Belgium
- University Department of Anesthesia and Intensive Care Medicine, Citadelle Regional Hospital, Liege, Belgium
| | - Charlotte Martial
- Coma Science Group, GIGA-Consciousness Thematic Unit, GIGA-Research, Liege University, Liege, Belgium
- Centre du Cerveau, Liege University Hospital, Liege, Belgium
| | - Naji L.N. Alnagger
- Coma Science Group, GIGA-Consciousness Thematic Unit, GIGA-Research, Liege University, Liege, Belgium
- Centre du Cerveau, Liege University Hospital, Liege, Belgium
| | - Olivia Gosseries
- Coma Science Group, GIGA-Consciousness Thematic Unit, GIGA-Research, Liege University, Liege, Belgium
- Centre du Cerveau, Liege University Hospital, Liege, Belgium
| | - Vincent Bonhomme
- Anesthesia and Perioperative Neuroscience Laboratory, Liege, Belgium
- Department of Anesthesia and Intensive Care Medicine, Liege, Belgium
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Jaquet O, Gos L, Amabili P, Donneau AF, Mendes MA, Bonhomme V, Tchana-Sato V, Hans GA. On-table Extubation After Minimally Invasive Cardiac Surgery: A Retrospective Observational Pilot Study. J Cardiothorac Vasc Anesth 2023; 37:2244-2251. [PMID: 37612202 DOI: 10.1053/j.jvca.2023.07.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 07/25/2023] [Accepted: 07/28/2023] [Indexed: 08/25/2023]
Abstract
OBJECTIVE To assess the safety of "on-table" extubation after minimally-invasive heart valve surgery. DESIGN A single-center retrospective observational study. SETTING At a tertiary referral academic hospital. PARTICIPANTS Patients who underwent nonemergent isolated heart valve surgery through a minithoracotomy approach between January 2016 and August 2021. INTERVENTION All patients were treated by 1 of the 6 cardiac anesthesiologists of the hospital. Only some of them practiced "on-table" extubation, and the outcome of patients extubated "on-table" was compared to those extubated in the intensive care unit (ICU). MEASUREMENT AND MAIN RESULTS The primary outcome was the occurrence of any postoperative respiratory complication during the entire hospital stay. Secondary outcomes included the use of inotropes and vasopressors, de novo atrial fibrillation, and lengths of stay in the ICU and the hospital. A total of 294 patients met inclusion criteria, of whom 186 (63%) were extubated "on-table." Cardiopulmonary bypass duration was significantly longer, and moderate intraoperative hypothermia was significantly more frequent in patients extubated in the ICU. After adjustment for these confounders and for the European System for Cardiac Operative Risk Evaluation (EuroSCORE) II using a multivariate logistic model, no association was found between the extubation strategy and postoperative pulmonary complications (adjusted odds ratio = 0.84; 95% CI = 0.40-1.77; p = 0.64). "On-table" extubation was associated with a lower risk of postoperative pneumonia and fewer vasopressors requirements. CONCLUSION "On-table" extubation was not associated with an increased incidence of respiratory complications. A randomized controlled trial is warranted to confirm these results and determine whether "on-table" extubation offers additional benefits.
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Affiliation(s)
- Océane Jaquet
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium.
| | - Laura Gos
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
| | - Philippe Amabili
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
| | | | - Manuel Azevedo Mendes
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
| | - Vincent Bonhomme
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium; Anesthesia and Perioperative Neuroscience Laboratory, GIGA-Consciousness Thematic Unit, GIGA-Research, Liege University, Liege, Belgium
| | - Vincent Tchana-Sato
- Department of Cardiovascular Surgery, Liege University Hospital, Liege, Belgium
| | - Grégory A Hans
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
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Potier S, Roulin A, Martin GR, Portugal SJ, Bonhomme V, Bouchet T, de Romans R, Meyrier E, Kelber A. Binocular field configuration in owls: the role of foraging ecology. Proc Biol Sci 2023; 290:20230664. [PMID: 37848065 PMCID: PMC10581762 DOI: 10.1098/rspb.2023.0664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 09/12/2023] [Indexed: 10/19/2023] Open
Abstract
The binocular field of vision differs widely in birds depending on ecological traits such as foraging. Owls (Strigiformes) have been considered to have a unique binocular field, but whether it is related to foraging has remained unknown. While taking into account allometry and phylogeny, we hypothesized that both daily activity cycle and diet determine the size and shape of the binocular field in owls. Here, we compared the binocular field configuration of 23 species of owls. While we found no effect of allometry and phylogeny, ecological traits strongly influence the binocular field shape and size. Binocular field shape of owls significantly differed from that of diurnal raptors. Among owls, binocular field shape was relatively conserved, but binocular field size differed among species depending on ecological traits, with larger binocular fields in species living in dense habitat and foraging on invertebrates. Our results suggest that (i) binocular field shape is associated with the time of foraging in the daily cycle (owls versus diurnal raptors) and (ii) that binocular field size differs between closely related owl species even though the general shape is conserved, possibly because the field of view is partially restricted by feathers, in a trade-off with auditory localization.
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Affiliation(s)
- Simon Potier
- Department of Biology, Lund University, Sölvegatan 35, Lund S-22362, Sweden
- Les Ailes de l'Urga, 72 rue de la vieille route, 27320 Marcilly la Campagne, France
| | - Alexandre Roulin
- Department of Ecology and Evolution, University of Lausanne, Biophore 1015, Switzerland
| | - Graham R. Martin
- School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Steven J. Portugal
- Department of Biological Science, School of Life and Environmental Sciences, Royal Holloway University of London, Egham, Surrey TW20 0EX, UK
| | - Vincent Bonhomme
- ISEM, Univ Montpellier, CNRS, EPHE, IRD, 34095 Montpellier, France
- Équipe Dynamique de la biodiversité, anthropo-écologie, Place Eugène Bataillon - CC065, 34095 Montpellier Cedex 5, France
| | - Thierry Bouchet
- Académie de Fauconnerie, SAS Puy du Fou France, 85500 Les Epesses, France
| | - Romuald de Romans
- Espace Rambouillet, Office National des Forêts, route du coin du bois, 78120 Sonchamp, France
| | - Eva Meyrier
- Les Aigles du Léman, Domaine de Guidou, 74140 Sciez sur Léman, France
| | - Almut Kelber
- Department of Biology, Lund University, Sölvegatan 35, Lund S-22362, Sweden
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Cardone P, Bodart O, Kirsch M, Sanfilippo J, Virgillito A, Martial C, Simon J, Wannez S, Sanders RD, Laureys S, Massimini M, Vandewalle G, Bonhomme V, Gosseries O. Depth of sedation with dexmedetomidine increases transcranial magnetic stimulation-evoked potential amplitude non-linearly. Br J Anaesth 2023; 131:715-725. [PMID: 37596183 DOI: 10.1016/j.bja.2023.05.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 05/09/2023] [Accepted: 05/30/2023] [Indexed: 08/20/2023] Open
Abstract
BACKGROUND Cortical excitability is higher in unconsciousness than in wakefulness, but it is unclear how this relates to anaesthesia. We investigated cortical excitability in response to dexmedetomidine, the effects of which are not fully known. METHODS We recorded transcranial magnetic stimulation (TMS) and EEG in frontal and parietal cortex of 20 healthy subjects undergoing dexmedetomidine sedation in four conditions (baseline, light sedation, deep sedation, recovery). We used the first component (0-30 ms) of the TMS-evoked potential (TEP) to measure cortical excitability (amplitude), slope, and positive and negative peak latencies (collectively, TEP indices). We used generalised linear mixed models to test the effect of condition, brain region, and responsiveness on TEP indices. RESULTS Compared with baseline, amplitude in the frontal cortex increased by 6.52 μV (P<0.001) in light sedation, 4.55 μV (P=0.003) in deep sedation, and 5.03 μV (P<0.001) in recovery. Amplitude did not change in the parietal cortex. Compared with baseline, slope increased in all conditions (P<0.02) in the frontal but not parietal cortex. The frontal cortex showed 5.73 μV higher amplitude (P<0.001), 0.63 μV ms-1 higher slope (P<0.001), and 2.2 ms shorter negative peak latency (P=0.001) than parietal areas. Interactions between dexmedetomidine and region had effects over amplitude (P=0.004) and slope (P=0.009), with both being higher in light sedation, deep sedation, and recovery compared with baseline. CONCLUSIONS Transcranial magnetic stimulation-evoked potential amplitude changes non-linearly as a function of depth of sedation by dexmedetomidine, with a region-specific paradoxical increase. Future research should investigate other anaesthetics to elucidate the link between cortical excitability and depth of sedation.
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Affiliation(s)
- Paolo Cardone
- Coma Science Group, GIGA-Consciousness, University of Liège, Liège, Belgium; Centre du Cerveau, University of Liège, Liège, Belgium
| | - Olivier Bodart
- Coma Science Group, GIGA-Consciousness, University of Liège, Liège, Belgium; Centre du Cerveau, University of Liège, Liège, Belgium; Department of Neurology, University of Liège, Liège, Belgium
| | - Murielle Kirsch
- Anesthesia and Perioperative Neuroscience Laboratory, GIGA-Consciousness, University of Liège, Liège, Belgium; Department of Anaesthesia and Intensive Care Medicine, University of Liège, Liège, Belgium
| | - Julien Sanfilippo
- Anesthesia and Perioperative Neuroscience Laboratory, GIGA-Consciousness, University of Liège, Liège, Belgium
| | | | - Charlotte Martial
- Coma Science Group, GIGA-Consciousness, University of Liège, Liège, Belgium; Centre du Cerveau, University of Liège, Liège, Belgium
| | - Jessica Simon
- Psychology and Neuroscience of Cognition, University of Liège, Liège, Belgium
| | - Sarah Wannez
- Coma Science Group, GIGA-Consciousness, University of Liège, Liège, Belgium
| | - Robert D Sanders
- Specialty of Anaesthetics, University of Sydney, Camperdown, Australia; Department of Anaesthetics & Institute of Academic Surgery, Royal Prince Alfred Hospital, Camperdown, Australia
| | - Steven Laureys
- Coma Science Group, GIGA-Consciousness, University of Liège, Liège, Belgium; Centre du Cerveau, University of Liège, Liège, Belgium; Joint International Research Unit on Consciousness, CERVO Brain Research Centre, CIUSS, University Laval, Québec City, QC, Canada
| | - Marcello Massimini
- Department of Biomedical and Clinical Sciences "L. Sacco", Università degli Studi di Milano, Milan, Italy; IRCCS Fondazione Don Gnocchi, Milan, Italy
| | - Gilles Vandewalle
- Sleep and Chronobiology Lab, GIGA-Cyclotron Research Centre-In Vivo Imaging, University of Liège, Liège, Belgium
| | - Vincent Bonhomme
- Anesthesia and Perioperative Neuroscience Laboratory, GIGA-Consciousness, University of Liège, Liège, Belgium; Department of Anaesthesia and Intensive Care Medicine, University of Liège, Liège, Belgium; University Department of Anaesthesia and Intensive Care Medicine, Centre Hospitalier Régional de la Citadelle (CHR Citadelle), Liège, Belgium.
| | - Olivia Gosseries
- Coma Science Group, GIGA-Consciousness, University of Liège, Liège, Belgium; Centre du Cerveau, University of Liège, Liège, Belgium.
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Khalifa C, Lenoir C, Robert A, Watremez C, Kahn D, Mastrobuoni S, Aphram G, Ivanoiu A, Bonhomme V, Mouraux A, Momeni M. Intra-operative electroencephalogram frontal alpha-band spectral analysis and postoperative delirium in cardiac surgery: A prospective cohort study. Eur J Anaesthesiol 2023; 40:777-787. [PMID: 37551153 DOI: 10.1097/eja.0000000000001895] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
BACKGROUND Postoperative delirium (POD) remains a frequent complication after cardiac surgery, with pre-operative cognitive status being one of the main predisposing factors. However, performing complete pre-operative neuropsychological testing is challenging. The magnitude of frontal electroencephalographic (EEG) α oscillations during general anaesthesia has been related to pre-operative cognition and could constitute a functional marker for brain vulnerability. OBJECTIVE We hypothesised that features of intra-operative α-band activity could predict the occurrence of POD. DESIGN Single-centre prospective observational study. SETTING University hospital, from 15 May 2019 to 15 December 2021. PATIENTS Adult patients undergoing elective cardiac surgery. MAIN OUTCOME MEASURES Pre-operative cognitive status was assessed by neuropsychological tests and scored as a global z score. A 5-min EEG recording was obtained 30 min after induction of anaesthesia. Anaesthesia was maintained with sevoflurane. Power and peak frequency in the α-band were extracted from the frequency spectra. POD was assessed using the Confusion Assessment Method for Intensive Care Unit, the Confusion Assessment Method and a chart review. RESULTS Sixty-five (29.5%) of 220 patients developed POD. Delirious patients were significantly older with median [IQR] ages of 74 [64 to 79] years vs. 67 [59 to 74] years; P < 0.001) and had lower pre-operative cognitive z scores (-0.52 ± 1.14 vs. 0.21 ± 0.84; P < 0.001). Mean α power (-14.03 ± 4.61 dB vs. -11.59 ± 3.37 dB; P < 0.001) and maximum α power (-11.36 ± 5.28 dB vs. -8.85 ± 3.90 dB; P < 0.001) were significantly lower in delirious patients. Intra-operative mean α power was significantly associated with the probability of developing POD (adjusted odds ratio, 0.88; 95% confidence interval (CI), 0.81 to 0.96; P = 0.007), independently of age and only whenever cognitive status was not considered. CONCLUSION A lower intra-operative frontal α-band power is associated with a higher incidence of POD after cardiac surgery. Intra-operative measures of α power could constitute a means of identifying patients at risk of this complication. TRIAL REGISTRATION NCT03706989.
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Affiliation(s)
- Céline Khalifa
- From the Department of Anaesthesiology, Cliniques universitaires Saint-Luc, Université catholique de Louvain (UCLouvain) (CK, CW, DK, MM), Institut de Recherche Expérimentale et Clinique (IREC), Université catholique de Louvain (UCLouvain) (CK, AR, CW, DK, SM, GA, MM), Institute of Neuroscience (IoNS), Université catholique de Louvain (UCLouvain) (CK, CL, CW, AI, AM, MM), Department of Epidemiology and Biostatistics, Université catholique de Louvain (UCLouvain) (AR), Department of Cardiothoracic and Vascular Surgery, Cliniques universitaires Saint-Luc, Université catholique de Louvain (UCLouvain) (SM, GA), Department of Neurology, Cliniques universitaires Saint-Luc, Université catholique de Louvain (UCLouvain), Brussels (AI), Department of Anaesthesia and Intensive Care Medicine, Liège University Hospital (VB) and Anaesthesia and Peri-operative Neuroscience Laboratory, GIGA-Consciousness Thematic Unit, GIGA-Research, Liege University, Liege, Belgium (VB)
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Devet B, Beck F, Tran G, Bonhomme V. [Plasma biomarkers in traumatic brain injury : current status]. Rev Med Liege 2023; 78:565-570. [PMID: 37830321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 10/14/2023]
Abstract
Traumatic Brain Injury (TBI) is a common trauma and a worldwide major cause of mortality or disability in both civilian and military populations. TBI is not a pathological entity in its own, but rather a pattern of heterogeneous traumas with diverse and varied mechanisms and clinical expressions. Therefore, no universal medical response can be settled to it. Instead, medical management must be tailored to each individual's specific needs. If the current identification and prognosis of TBI is basically based on neurological examination and computerized tomography, specific biomarkers could represent a valuable aid in this diagnostic and therapeutic challenge. The potential implications of these markers are broad, encompassing among others the detection of unsuspected TBI, the monitoring of trauma severity, short-, intermediate- and long-term prognosis and apprehension of the extent of the sequelae. This topic has received broad and growing interest over the past decade, and the current literature is extensive. This short narrative review summarizes the latest advances in the field of plasma biomarkers in TBI patients.
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Affiliation(s)
- Bastien Devet
- Département d'Anesthésie et Réanimation, CHU Liège, Belgique
| | - Florian Beck
- Département d'Anesthésie et Réanimation, CHU Liège, Belgique
- Anesthesia and Perioperative Neuroscience Laboratory, GIGA-Consciousness Thematic Unit, GIGA-Research, ULiège, Belgique
| | - Gabriel Tran
- Département d'Anesthésie et Réanimation, CHU Liège, Belgique
- Inflammation and Enhanced Rehabilitation Laboratory (Régional Anesthesia and Analgesia), GIGA-I3 Thematic Unit, GIGA-Research, ULiège, Belgique
| | - Vincent Bonhomme
- Département d'Anesthésie et Réanimation, CHU Liège, Belgique
- Anesthesia and Perioperative Neuroscience Laboratory, GIGA-Consciousness Thematic Unit, GIGA-Research, ULiège, Belgique
- Faculté de Médecine, ULIège, Belgique
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Mendes MA, Fabre M, Amabili P, Jaquet O, Donneau AF, Bonhomme V, Hans GA. Development and Validation of a Prediction Score for Low-Cardiac-Output Syndrome After Adult Cardiac Surgery. J Cardiothorac Vasc Anesth 2023; 37:1967-1973. [PMID: 37451955 DOI: 10.1053/j.jvca.2023.06.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 06/05/2023] [Accepted: 06/16/2023] [Indexed: 07/18/2023]
Abstract
OBJECTIVES The authors aimed to develop a simple prediction score to help identify patients at high risk of low-cardiac-output syndrome after adult cardiac surgery. DESIGN A single-center, retrospective, observational study. SETTING At a tertiary hospital. PARTICIPANTS Adult patients who underwent on-pump cardiac surgery between April 2016 and March 2021. INTERVENTION None. MEASUREMENTS AND MAIN RESULTS Among the 2,806 patients retained for final analyses, 355 (12.7%) developed low-cardiac-output syndrome. Using a stepwise backward variable selection procedure applied to a multivariate logistic regression, a prediction model, including 8 risk factors, could be identified-preoperative left ventricular ejection fraction, glomerular filtration rate <60 mL/min according to the Cockcroft formula or preoperative dialysis, combined surgery, nonelective surgery, mitral valve surgery for mitral valve regurgitation, history of extracardiac arteriopathy, preoperative hemoglobin <13 g/dL, and New York Heart Association functional class III or IV. A clinical prediction score was derived from the regression coefficients. The model had a good discriminative ability, with an area under the receiver operating characteristics curve of 0.8 (95% CI: 077-0.84). Using a threshold value of 5, the score had a 68% sensitivity, 79% specificity, a positive-predictive value of 33%, and a negative-predictive value of 94%. These results were validated on a validation sample using the bootstrap resampling technique. CONCLUSIONS The authors developed a clinical score to facilitate the prediction of low- cardiac-output syndrome after adult cardiac surgery. This could help tailor patient management by contributing to the early identification of those at high risk of postoperative low cardiac output.
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Affiliation(s)
- Manuel Azevedo Mendes
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium.
| | - Marie Fabre
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
| | - Philippe Amabili
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
| | - Oceane Jaquet
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
| | | | - Vincent Bonhomme
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium; Anesthesia and Perioperative Neuroscience Laboratory, GIGA-Consciousness Thematic Unit, GIGA-Research, Liege University, Liege, Belgium
| | - Gregory A Hans
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
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Vanneste T, Belba A, van Kuijk S, Kimman M, Bellemans J, Bonhomme V, Sommer M, Emans P, Vankrunkelsven P, Tartaglia K, Van Zundert J. Comparison of conventional and cooled radiofrequency treatment of the genicular nerves versus sham procedure for patients with chronic knee pain: protocol for a multicentre, double-blind, randomised controlled trial (COGENIUS). BMJ Open 2023; 13:e073949. [PMID: 37532482 PMCID: PMC10401223 DOI: 10.1136/bmjopen-2023-073949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/04/2023] Open
Abstract
INTRODUCTION The prevalence of chronic knee pain is increasing. Osteoarthritis (OA) and persistent postsurgical pain (PPSP) are two important causes of knee pain. Chronic knee pain is primarily treated with medications, physiotherapy, life-style changes and intra-articular infiltrations. A radiofrequency treatment (RF) of the genicular nerves is a therapeutical option for refractory knee pain. This study investigates the effectiveness and cost-effectiveness of conventional and cooled RF in patients suffering from chronic, therapy resistant, moderate to severe knee pain due to OA and PPSP. METHODS AND ANALYSIS The COGENIUS trial is a double-blinded, randomised controlled trial with 2-year follow-up. Patients and outcome assessors are blinded. Patients will be recruited and treated in Belgium and the Netherlands. All PPSP after a total knee prothesis and OA patients (grades 2-4) will undergo a run-in period of 1-3 months where conservative treatment will be optimised. After the run-in period, 200 patient per group will be randomised to conventional RF, cooled RF or a sham procedure following a 2:2:1 ratio. The analysis will include a comparison of the effectiveness of each RF treatment with the sham procedure and secondarily between conventional and cooled RF. All comparisons will be made for each indication separately. The primary outcome is the Western Ontario and McMaster Universities Osteoarthritis Index score at 6 months. Other outcomes include knee pain, physical functionality, health-related quality of life, emotional health, medication use, healthcare and societal cost and adverse events up to 24 months postintervention. ETHICS AND DISSEMINATION Ethics approval was obtained from the Ethics Committee of the University of Antwerp (Number Project ID 3069-Edge 002190-BUN B3002022000025), the Ethics committee of Maastricht University (Number NL80503.068.22-METC22-023) and the Ethics committee of all participating hospitals. Results of the study will be published in international peer-reviewed journals. TRIAL REGISTRATION NUMBER NCT05407610.
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Affiliation(s)
- Thibaut Vanneste
- Department of Anesthesiology, Intensive Care Medicine, Emergency Medicine and Multidisciplinary Pain Center, Ziekenhuis Oost-Limburg, Genk, Belgium
- Department of Anesthesiology and Pain Medicine, Maastricht University Medical Center+, Maastricht, The Netherlands
| | - Amy Belba
- Department of Anesthesiology, Intensive Care Medicine, Emergency Medicine and Multidisciplinary Pain Center, Ziekenhuis Oost-Limburg, Genk, Belgium
- Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium
| | - Sander van Kuijk
- Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University Medical Center+, Maastricht, The Netherlands
| | - Merel Kimman
- Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University Medical Center+, Maastricht, The Netherlands
| | - Johan Bellemans
- Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium
- GRIT Belgian Sports Clinic, Leuven, Belgium
| | - Vincent Bonhomme
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
- Anesthesia and Perioperative Neuroscience Laboratory, GIGA-Consciousness Thematic Unit, GIGA-Research, Liege University, Liege, Belgium
| | - Micha Sommer
- Department of Anesthesiology and Pain Medicine, Maastricht University Medical Center+, Maastricht, The Netherlands
| | - Pieter Emans
- Department of Orthopaedic Surgery, CAPHRI School for Public Health and Primary Care, Maastricht University Medical Center+, Maastricht, The Netherlands
| | - Patrik Vankrunkelsven
- Department of Public Health and Primary Care, Catholic University of Leuven Faculty of Medicine, Leuven, Belgium
- CEBAM (Belgian Centre for Evidence-Based Medicine), Leuven, Belgium
| | | | - Jan Van Zundert
- Department of Anesthesiology, Intensive Care Medicine, Emergency Medicine and Multidisciplinary Pain Center, Ziekenhuis Oost-Limburg, Genk, Belgium
- Department of Anesthesiology and Pain Medicine, Maastricht University Medical Center+, Maastricht, The Netherlands
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Luppi AI, Hansen JY, Adapa R, Carhart-Harris RL, Roseman L, Timmermann C, Golkowski D, Ranft A, Ilg R, Jordan D, Bonhomme V, Vanhaudenhuyse A, Demertzi A, Jaquet O, Bahri MA, Alnagger NL, Cardone P, Peattie AR, Manktelow AE, de Araujo DB, Sensi SL, Owen AM, Naci L, Menon DK, Misic B, Stamatakis EA. In vivo mapping of pharmacologically induced functional reorganization onto the human brain's neurotransmitter landscape. Sci Adv 2023; 9:eadf8332. [PMID: 37315149 PMCID: PMC10266734 DOI: 10.1126/sciadv.adf8332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 05/10/2023] [Indexed: 06/16/2023]
Abstract
To understand how pharmacological interventions can exert their powerful effects on brain function, we need to understand how they engage the brain's rich neurotransmitter landscape. Here, we bridge microscale molecular chemoarchitecture and pharmacologically induced macroscale functional reorganization, by relating the regional distribution of 19 neurotransmitter receptors and transporters obtained from positron emission tomography, and the regional changes in functional magnetic resonance imaging connectivity induced by 10 different mind-altering drugs: propofol, sevoflurane, ketamine, lysergic acid diethylamide (LSD), psilocybin, N,N-Dimethyltryptamine (DMT), ayahuasca, 3,4-methylenedioxymethamphetamine (MDMA), modafinil, and methylphenidate. Our results reveal a many-to-many mapping between psychoactive drugs' effects on brain function and multiple neurotransmitter systems. The effects of both anesthetics and psychedelics on brain function are organized along hierarchical gradients of brain structure and function. Last, we show that regional co-susceptibility to pharmacological interventions recapitulates co-susceptibility to disorder-induced structural alterations. Collectively, these results highlight rich statistical patterns relating molecular chemoarchitecture and drug-induced reorganization of the brain's functional architecture.
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Affiliation(s)
- Andrea I. Luppi
- Division of Anaesthesia, University of Cambridge, Cambridge, UK
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
- Leverhulme Centre for the Future of Intelligence, University of Cambridge, Cambridge, UK
- The Alan Turing Institute, London, UK
- McConnell Brain Imaging Center, Montreal Neurological Institute, McGill University, Montreal, QC, Canada
| | - Justine Y. Hansen
- McConnell Brain Imaging Center, Montreal Neurological Institute, McGill University, Montreal, QC, Canada
| | - Ram Adapa
- Division of Anaesthesia, University of Cambridge, Cambridge, UK
| | - Robin L. Carhart-Harris
- Psychedelics Division - Neuroscape, Department of Neurology, University of California San Francisco, San Francisco, CA, USA
| | - Leor Roseman
- Center for Psychedelic Research, Department of Brain Sciences, Imperial College London, London, UK
| | - Christopher Timmermann
- Center for Psychedelic Research, Department of Brain Sciences, Imperial College London, London, UK
| | - Daniel Golkowski
- Department of Neurology, Klinikum rechts der Isar, Technical University Munich, München, Germany
| | - Andreas Ranft
- School of Medicine, Department of Anesthesiology and Intensive Care, Technical University of Munich, Munich, Germany
| | - Rüdiger Ilg
- Department of Neurology, Klinikum rechts der Isar, Technical University Munich, München, Germany
- Department of Neurology, Asklepios Clinic, Bad Tölz, Germany
| | - Denis Jordan
- Department of Anaesthesiology and Intensive Care Medicine, Klinikum rechts der Isar, Technical University Munich, München, Germany
- University of Applied Sciences and Arts Northwestern Switzerland, Muttenz, Switzerland
| | - Vincent Bonhomme
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
- Anesthesia and Perioperative Neuroscience Laboratory, GIGA-Consciousness Thematic Unit, GIGA-Research, Liege University, Liege, Belgium
| | - Audrey Vanhaudenhuyse
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
| | - Athena Demertzi
- GIGA-Cyclotron Research Centre-In Vivo Imaging, University of Liege, Liege, Belgium
| | - Oceane Jaquet
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
| | - Mohamed Ali Bahri
- GIGA-Cyclotron Research Centre-In Vivo Imaging, University of Liege, Liege, Belgium
| | - Naji L. N. Alnagger
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
| | - Paolo Cardone
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
| | - Alexander R. D. Peattie
- Division of Anaesthesia, University of Cambridge, Cambridge, UK
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | | | | | - Stefano L. Sensi
- Department of Neuroscience and Imaging and Clinical Science, Center for Advanced Studies and Technology, Institute for Advanced Biomedical Technologies, University "G. d'Annunzio" Chieti-Pescara, Chieti, Italy
- Institute for Memory Impairments and Neurological Disorders, University of California-Irvine, Irvine, CA, USA
| | - Adrian M. Owen
- Department of Psychology and Department of Physiology and Pharmacology, Western Institute for Neuroscience (WIN), Western University, London, ON, Canada
| | - Lorina Naci
- Trinity College Institute of Neuroscience, School of Psychology, Trinity College Dublin, Dublin, Ireland
| | - David K. Menon
- Division of Anaesthesia, University of Cambridge, Cambridge, UK
- Wolfon Brain Imaging Centre, University of Cambridge, Cambridge, UK
| | - Bratislav Misic
- McConnell Brain Imaging Center, Montreal Neurological Institute, McGill University, Montreal, QC, Canada
| | - Emmanuel A. Stamatakis
- Division of Anaesthesia, University of Cambridge, Cambridge, UK
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
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17
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Abstract
Aneurysmal subarachnoid hemorrhage (aSAH) is an emergency that needs prompt diagnosis and treatment with endovascular coiling or surgical clipping of the aneurysm to prevent re-bleeding. In addition to neurologic manifestations, aSAH can cause respiratory and cardiovascular complications. The prevention of hypoxemia and hypercarbia, control of intracranial pressure, and restoration of cerebral perfusion pressure should be the primary aims of early management. Secondarily, the most important causes of persistent neurological deficits and physical dependence in aSAH are vasospasm and delayed ischemia following bleeding. During that period, a focus on the detection, prevention, and treatment of vasospasm should be the rule. Transcranial Doppler allows detection and follow-up of vasospasm, especially in severe cases. Nimodipine is the only drug that has proven efficacy for treating vasospasm. Balloon angioplasty is performed in cases of resistance to medical treatment. Along with angioplasty, intra-arterial vasodilators can be administered. New diagnostic and therapeutic advances will hopefully improve outcomes in the near future.
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Affiliation(s)
- Özlem Korkmaz Dilmen
- Department of Anaesthesiology and Reanimation, İstanbul University-Cerrahpaşa, Cerrahpaşa Faculty of Medicine, İstanbul, Turkey
| | - Vincent Bonhomme
- Department of Anaesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium and Anaesthesia and Perioperative Neuroscience Laboratory, GIGA-Consciousness Thematic Unit, GIGA-Research, Liege University, Liege, Belgium
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18
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Jesus A, Bonhomme V, Evin A, Soteras R, Jacomet S, Bouby L, Antolín F. Morphometrics of waterlogged archaeological seeds give new insights into the domestication and spread of Papaver somniferum L. in Western Europe. PLoS One 2023; 18:e0286190. [PMID: 37228077 DOI: 10.1371/journal.pone.0286190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 05/10/2023] [Indexed: 05/27/2023] Open
Abstract
Domesticated opium poppy Papaver somniferum L. subsp. somniferum probably originated in the Western Mediterranean from its possible wild progenitor, Papaver somniferum L. subsp. setigerum and spread to other European regions. Seeds of opium poppy have been identified in different European regions since the Early Neolithic (from the 6th millennium cal. BC onwards) period. However, until recently, the absence of morphological identification criteria has prevented the discrimination between wild and domestic morphotypes. New morphometric approaches to distinguish modern subspecies have been proven to be applicable to waterlogged archaeological remains, opening the possibility of understanding the process of domestication of the plant in both time and space. This paper applies seed outline analyses, namely elliptic Fourier transforms, combined with size and number of cells to archaeological waterlogged Papaver seeds throughout the Neolithic period in the NW Mediterranean and the surroundings of the Alps. Furthermore, one example from the Late Bronze Age (LBA) was added to see what kind of differences appeared during the >1000 years between the end of the Neolithic and the LBA. The aim of the study is to classify the archaeological seeds as domestic or wild morphotypes and observe morphometric changes in connection to geographical and chronological patterns that can explain the spread and domestication process(es) of this important crop. A total of 295 archaeological seeds coming from 10 waterlogged sites dating between 5300-2300 cal. BC (Neolithic), and one LBA site dating to 1070 cal. BC were analysed. The results indicate the presence of seeds, similar to the wild morphotype, in the Mediterranean sites and larger seeds, similar to the domestic morphotype, in the regions surrounding the Alps. The number of cells mainly increased during the Late Neolithic (3300 to 2300 cal. BC) and, finally, in the Late Bronze Age (ca. 1050-800 cal. BC), larger, morphologically domesticated seeds are clearly predominant. A change in the shape of the seeds is only clearly visible in the LBA material. Altogether our results suggest that opium poppy seeds show no sign of domestication in the early periods of the Neolithic, despite the fact that the plant was very probably already cultivated at that time in the western Mediterranean region.
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Affiliation(s)
- Ana Jesus
- Department of Environmental Sciences, Integrative Prehistory and Archeological Science (IPAS), University of Basel, Basel, Switzerland
| | - Vincent Bonhomme
- Département Paléo-Ecosystèmes, Climat, Sociétés (PAST), ISEM, University of Montpellier-CNRS-IRD-EPHE, Montpellier, France
| | - Allowen Evin
- Département Paléo-Ecosystèmes, Climat, Sociétés (PAST), ISEM, University of Montpellier-CNRS-IRD-EPHE, Montpellier, France
| | - Raül Soteras
- Department of Environmental Sciences, Integrative Prehistory and Archeological Science (IPAS), University of Basel, Basel, Switzerland
- Division of Natural Sciences, German Archaeological Institute, Berlin, Germany
| | - Stefanie Jacomet
- Department of Environmental Sciences, Integrative Prehistory and Archeological Science (IPAS), University of Basel, Basel, Switzerland
| | - Laurent Bouby
- Département Paléo-Ecosystèmes, Climat, Sociétés (PAST), ISEM, University of Montpellier-CNRS-IRD-EPHE, Montpellier, France
| | - Ferran Antolín
- Department of Environmental Sciences, Integrative Prehistory and Archeological Science (IPAS), University of Basel, Basel, Switzerland
- Division of Natural Sciences, German Archaeological Institute, Berlin, Germany
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19
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Perl YS, Pallavicini C, Piccinini J, Demertzi A, Bonhomme V, Martial C, Panda R, Alnagger N, Annen J, Gosseries O, Ibañez A, Laufs H, Sitt JD, Jirsa VK, Kringelbach ML, Laureys S, Deco G, Tagliazucchi E. Low-dimensional organization of global brain states of reduced consciousness. Cell Rep 2023; 42:112491. [PMID: 37171963 DOI: 10.1016/j.celrep.2023.112491] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 03/19/2023] [Accepted: 04/24/2023] [Indexed: 05/14/2023] Open
Abstract
Brain states are frequently represented using a unidimensional scale measuring the richness of subjective experience (level of consciousness). This description assumes a mapping between the high-dimensional space of whole-brain configurations and the trajectories of brain states associated with changes in consciousness, yet this mapping and its properties remain unclear. We combine whole-brain modeling, data augmentation, and deep learning for dimensionality reduction to determine a mapping representing states of consciousness in a low-dimensional space, where distances parallel similarities between states. An orderly trajectory from wakefulness to patients with brain injury is revealed in a latent space whose coordinates represent metrics related to functional modularity and structure-function coupling, increasing alongside loss of consciousness. Finally, we investigate the effects of model perturbations, providing geometrical interpretation for the stability and reversibility of states. We conclude that conscious awareness depends on functional patterns encoded as a low-dimensional trajectory within the vast space of brain configurations.
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Affiliation(s)
- Yonatan Sanz Perl
- Department of Physics, University of Buenos Aires, Intendente Guiraldes 2160 (Ciudad Universitaria), Buenos Aires, Argentina; National Scientific and Technical Research Council (CONICET), CABA, Buenos Aires, Argentina; Cognitive Neuroscience Center (CNC), Universidad de San Andrés, Buenos Aires, Argentina; Center for Brain and Cognition, Computational Neuroscience Group, Universitat Pompeu Fabra, Barcelona, Spain; Paris Brain Institute (ICM), Paris, France.
| | - Carla Pallavicini
- Department of Physics, University of Buenos Aires, Intendente Guiraldes 2160 (Ciudad Universitaria), Buenos Aires, Argentina; National Scientific and Technical Research Council (CONICET), CABA, Buenos Aires, Argentina; Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Buenos Aires, Argentina
| | - Juan Piccinini
- Department of Physics, University of Buenos Aires, Intendente Guiraldes 2160 (Ciudad Universitaria), Buenos Aires, Argentina; National Scientific and Technical Research Council (CONICET), CABA, Buenos Aires, Argentina
| | - Athena Demertzi
- Physiology of Cognition Research Lab, GIGA CRC-In Vivo Imaging Center, GIGA Institute, University of Liège, Liège, Belgium
| | - Vincent Bonhomme
- Anesthesia and Intensive Care Laboratory, GIGA-Consciousness, GIGA Institute, University of Liège, Liège, Belgium; University Department of Anesthesia and Intensive Care Medicine, Centre Hospitalier Régional de la Citadelle (CHR Citadelle), Liège, Belgium; Department of Anesthesia and Intensive Care Medicine, Centre Hospitalier Universitaire de Liège (CHU Liège), Liège, Belgium
| | - Charlotte Martial
- Coma Science Group, GIGA Consciousness, University of Liège, Liège, Belgium; Centre du Cerveau(2), Centre Hospitalier Universitaire de Liège (CHU Liège), Liège, Belgium
| | - Rajanikant Panda
- Coma Science Group, GIGA Consciousness, University of Liège, Liège, Belgium; Centre du Cerveau(2), Centre Hospitalier Universitaire de Liège (CHU Liège), Liège, Belgium
| | - Naji Alnagger
- Coma Science Group, GIGA Consciousness, University of Liège, Liège, Belgium; Centre du Cerveau(2), Centre Hospitalier Universitaire de Liège (CHU Liège), Liège, Belgium
| | - Jitka Annen
- Coma Science Group, GIGA Consciousness, University of Liège, Liège, Belgium; Centre du Cerveau(2), Centre Hospitalier Universitaire de Liège (CHU Liège), Liège, Belgium
| | - Olivia Gosseries
- Coma Science Group, GIGA Consciousness, University of Liège, Liège, Belgium; Centre du Cerveau(2), Centre Hospitalier Universitaire de Liège (CHU Liège), Liège, Belgium
| | - Agustin Ibañez
- National Scientific and Technical Research Council (CONICET), CABA, Buenos Aires, Argentina; Cognitive Neuroscience Center (CNC), Universidad de San Andrés, Buenos Aires, Argentina; Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibáñez, Santiago, Chile; Global Brain Health Institute (GBHI), University of California-San Francisco (UCSF), San Francisco, CA, USA; Trinity College, Dublin, Ireland
| | - Helmut Laufs
- Department of Neurology and Brain Imaging Center, Goethe University, Frankfurt am Main, Germany; Department of Neurology, Christian Albrechts University, Kiel, Germany
| | - Jacobo D Sitt
- Paris Brain Institute (ICM), Paris, France; INSERM U 1127, Paris, France; CNRS UMR 7225, Paris, France
| | - Viktor K Jirsa
- Institut de Neurosciences des Systèmes, Aix Marseille Université, Marseille, France
| | - Morten L Kringelbach
- Department of Psychiatry, University of Oxford, Oxford, UK; Center for Music in the Brain, Department of Clinical Medicine, Aarhus University, Århus, Denmark; Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; Centre for Eudaimonia and Human Flourishing, University of Oxford, Oxford, UK
| | - Steven Laureys
- Coma Science Group, GIGA Consciousness, University of Liège, Liège, Belgium; Centre du Cerveau(2), Centre Hospitalier Universitaire de Liège (CHU Liège), Liège, Belgium
| | - Gustavo Deco
- Center for Brain and Cognition, Computational Neuroscience Group, Universitat Pompeu Fabra, Barcelona, Spain; Department of Information and Communication Technologies, Universitat Pompeu Fabra, Barcelona, Spain; Institució Catalana de la Recerca i Estudis Avancats (ICREA), Barcelona, Spain
| | - Enzo Tagliazucchi
- Department of Physics, University of Buenos Aires, Intendente Guiraldes 2160 (Ciudad Universitaria), Buenos Aires, Argentina; National Scientific and Technical Research Council (CONICET), CABA, Buenos Aires, Argentina; Centre du Cerveau(2), Centre Hospitalier Universitaire de Liège (CHU Liège), Liège, Belgium.
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20
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Gos L, Staquet C, Libbrecht D, Bonhomme V. [Fibromyalgia, where are we in 2023 ?]. Rev Med Liege 2023; 78:305-314. [PMID: 37350207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/24/2023]
Abstract
Fibromyalgia remains a nebulous clinical entity for many practitioners. Actually, this pathology associates diffuse chronic pain with a host of somatic complaints, which may be variable from one patient to another. The difficulty resides also in establishing the diagnosis, which remains essentially clinical, in the absence of anatomical lesions, as well as biological or anatomopathological anomalies. Patients are usually confronted to a therapeutic wandering phase, of variable duration, before being recognized in their pathology. Management of fibromyalgia has to be multimodal, including physiotherapy, a cognitive-behavioural approach, and an individually tailored medical support.
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Affiliation(s)
- Laura Gos
- Centre Interdisciplinaire d'Algologie, CHU Liège, Belgique
- Service d'Anesthésie-Réanimation, CHU Liège, Belgique
| | - Cécile Staquet
- Centre Interdisciplinaire d'Algologie, CHU Liège, Belgique
- Service d'Anesthésie-Réanimation, CHU Liège, Belgique
- Anesthesia and Perioperative Neuroscience Laboratory, GIGA-Consciousness Thematic Unit, GIGA-Research, ULiège, Belgique
| | - Dominique Libbrecht
- Centre Interdisciplinaire d'Algologie, CHU Liège, Belgique
- Service d'Anesthésie-Réanimation, CHU Liège, Belgique
| | - Vincent Bonhomme
- Centre Interdisciplinaire d'Algologie, CHU Liège, Belgique
- Service d'Anesthésie-Réanimation, CHU Liège, Belgique
- Anesthesia and Perioperative Neuroscience Laboratory, GIGA-Consciousness Thematic Unit, GIGA-Research, ULiège, Belgique
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21
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Pujol J, Martínez-Vilavella G, Gallart L, Blanco-Hinojo L, Pacreu S, Bonhomme V, Deus J, Pérez-Sola V, Gambús PL, Fernández-Candil J. Effects of remifentanil on brain responses to noxious stimuli during deep propofol sedation. Br J Anaesth 2023; 130:e330-e338. [PMID: 35973838 DOI: 10.1016/j.bja.2022.06.038] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 05/24/2022] [Accepted: 06/19/2022] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND The safety of anaesthesia has improved as a result of better control of anaesthetic depth. However, conventional monitoring does not inform on the nature of nociceptive processes during unconsciousness. A means of inferring the quality of potentially painful experiences could derive from analysis of brain activity using neuroimaging. We have evaluated the dose effects of remifentanil on brain response to noxious stimuli during deep sedation and spontaneous breathing. METHODS Optimal data were obtained in 26 healthy subjects. Pressure stimulation that proved to be moderately painful before the experiment was applied to the thumbnail. Functional MRI was acquired in 4-min periods at low (0.5 ng ml-1), medium (1 ng ml-1), and high (1.5 ng ml-1) target plasma concentrations of remifentanil at a stable background infusion of propofol adjusted to induce a state of light unconsciousness. RESULTS At low remifentanil doses, we observed partial activation in brain areas processing sensory-discriminative and emotional-affective aspects of pain. At medium doses, relevant changes were identified in structures highly sensitive to general brain arousal, including the brainstem, cerebellum, thalamus, auditory and visual cortices, and the frontal lobe. At high doses, no significant activation was observed. CONCLUSIONS The response to moderately intense focal pressure in pain-related brain networks is effectively eliminated with safe remifentanil doses. However, the safety margin in deep sedation-analgesia would be narrowed in minimising not only nociceptive responses, but also arousal-related biological stress.
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Affiliation(s)
- Jesus Pujol
- MRI Research Unit, Department of Radiology, Hospital Del Mar, Barcelona, Spain; Centro Investigación Biomédica en Red de Salud Mental, CIBERSAM G21, Barcelona, Spain.
| | | | - Lluís Gallart
- Department of Anesthesiology, Hospital Del Mar-IMIM, Barcelona, Spain; Department of Surgery, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Laura Blanco-Hinojo
- MRI Research Unit, Department of Radiology, Hospital Del Mar, Barcelona, Spain; Centro Investigación Biomédica en Red de Salud Mental, CIBERSAM G21, Barcelona, Spain
| | - Susana Pacreu
- Department of Anesthesiology, Hospital Del Mar-IMIM, Barcelona, Spain
| | - Vincent Bonhomme
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium; Anesthesia and Intensive Care Laboratory, GIGA-Consciousness Thematic Unit, GIGA-Research, Liege University, Liege, Belgium
| | - Joan Deus
- MRI Research Unit, Department of Radiology, Hospital Del Mar, Barcelona, Spain; Department of Psychobiology and Methodology in Health Sciences, Autonomous University of Barcelona, Barcelona, Spain
| | - Víctor Pérez-Sola
- Centro Investigación Biomédica en Red de Salud Mental, CIBERSAM G21, Barcelona, Spain; Institute of Neuropsychiatry and Addictions, Hospital Del Mar- IMIM, Pompeu I Fabra University, Barcelona, Spain
| | - Pedro L Gambús
- Systems Pharmacology Effect Control & Modeling Research Group, Anesthesiology Department, Hospital Clinic de Barcelona, Barcelona, Spain
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22
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Lennertz R, Pryor KO, Raz A, Parker M, Bonhomme V, Schuller P, Schneider G, Moore M, Coburn M, Root JC, Emerson JM, Hohmann AL, Azaria H, Golomb N, Defresne A, Montupil J, Pilge S, Obert DP, van Waart H, Seretny M, Rossaint R, Kowark A, Blair A, Krause B, Proekt A, Kelz M, Sleigh J, Gaskell A, Sanders RD. Connected consciousness after tracheal intubation in young adults: an international multicentre cohort study. Br J Anaesth 2023; 130:e217-e224. [PMID: 35618535 PMCID: PMC10375493 DOI: 10.1016/j.bja.2022.04.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 04/05/2022] [Accepted: 04/06/2022] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Connected consciousness, assessed by response to command, occurs in at least 5% of general anaesthetic procedures and perhaps more often in young people. Our primary objective was to establish the incidence of connected consciousness after tracheal intubation in young people aged 18-40 yr. The secondary objectives were to assess the nature of these responses, identify relevant risk factors, and determine their relationship to postoperative outcomes. METHODS This was an international, multicentre prospective cohort study using the isolated forearm technique to assess connected consciousness shortly after tracheal intubation. RESULTS Of 344 enrolled subjects, 338 completed the study (mean age, 30 [standard deviation, 6.3] yr; 232 [69%] female). Responses after intubation occurred in 37/338 subjects (11%). Females (13%, 31/232) responded more often than males (6%, 6/106). In logistic regression, the risk of responsiveness was increased with female sex (odds ratio [ORadjusted]=2.7; 95% confidence interval [CI], 1.1-7.6; P=0.022) and was decreased with continuous anaesthesia before laryngoscopy (ORadjusted=0.43; 95% CI, 0.20-0.96; P=0.041). Responses were more likely to occur after a command to respond (and not to nonsense, 13 subjects) than after a nonsense statement (and not to command, four subjects, P=0.049). CONCLUSIONS Connected consciousness occured after intubation in 11% of young adults, with females at increased risk. Continuous exposure to anaesthesia between induction of anaesthesia and tracheal intubation should be considered to reduce the incidence of connected consciousness. Further research is required to understand sex-related differences in the risk of connected consciousness.
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Affiliation(s)
- Richard Lennertz
- Department of Anesthesiology, University of Wisconsin, Madison, WI, USA
| | - Kane O Pryor
- Department of Anesthesiology, Weill Cornell Medicine, New York, NY, USA
| | - Aeyal Raz
- Department of Anesthesiology, Rambam Health Care Center, Affiliated with the Ruth and Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Maggie Parker
- Department of Anesthesiology, University of Wisconsin, Madison, WI, USA
| | - Vincent Bonhomme
- University Department of Anesthesia and Intensive Care Medicine, CHR Citadelle and CHU Liege, Liège, Belgium, and Anesthesia and Intensive Care Laboratory, GIGA-Consciousness Thematic Unit, GIGA-Research, Liege University, Liege, Belgium
| | - Peter Schuller
- Department of Anaesthesia, Cairns Hospital, Queensland, Australia
| | - Gerhard Schneider
- Technical University of Munich, School of Medicine, Klinikum rechts der Isar, Department of Anaesthesiology and Intensive Care, Munich, Germany
| | - Matt Moore
- Department of Anesthesiology, University of Auckland, Auckland, New Zealand
| | - Mark Coburn
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany
| | - James C Root
- Department of Anesthesiology, Weill Cornell Medicine, New York, NY, USA; Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | | | | - Haya Azaria
- Department of Anesthesiology, Rambam Health Care Center, Affiliated with the Ruth and Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Neta Golomb
- Department of Anesthesiology, Rambam Health Care Center, Affiliated with the Ruth and Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Aline Defresne
- University Department of Anesthesia and Intensive Care Medicine, CHR Citadelle and CHU Liege, Liège, Belgium, and Anesthesia and Intensive Care Laboratory, GIGA-Consciousness Thematic Unit, GIGA-Research, Liege University, Liege, Belgium
| | - Javier Montupil
- University Department of Anesthesia and Intensive Care Medicine, CHR Citadelle and CHU Liege, Liège, Belgium, and Anesthesia and Intensive Care Laboratory, GIGA-Consciousness Thematic Unit, GIGA-Research, Liege University, Liege, Belgium
| | - Stefanie Pilge
- Technical University of Munich, School of Medicine, Klinikum rechts der Isar, Department of Anaesthesiology and Intensive Care, Munich, Germany
| | - David P Obert
- Technical University of Munich, School of Medicine, Klinikum rechts der Isar, Department of Anaesthesiology and Intensive Care, Munich, Germany
| | - Hanna van Waart
- Department of Anesthesiology, University of Auckland, Auckland, New Zealand
| | - Marta Seretny
- Department of Anesthesiology, University of Auckland, Auckland, New Zealand
| | - Rolf Rossaint
- Department of Anesthesiology, Medical Faculty University Hospital RWTH Aachen, Aachen, Germany
| | - Ana Kowark
- Department of Anesthesiology, Medical Faculty University Hospital RWTH Aachen, Aachen, Germany
| | - Alexander Blair
- Department of Anesthesiology, University of Wisconsin, Madison, WI, USA
| | - Bryan Krause
- Department of Anesthesiology, University of Wisconsin, Madison, WI, USA
| | - Alex Proekt
- Department of Anesthesiology and Critical Care, University of Pennsylvania, Philadelphia, PA, USA
| | - Max Kelz
- Department of Anesthesiology and Critical Care, University of Pennsylvania, Philadelphia, PA, USA
| | - Jamie Sleigh
- Department of Anaesthesiology, Waikato Clinical Campus, University of Auckland, Hamilton, New Zealand
| | - Amy Gaskell
- Department of Anaesthesiology, Waikato Clinical Campus, University of Auckland, Hamilton, New Zealand
| | - Robert D Sanders
- Specialty of Anaesthetics, University of Sydney, Camperdown, Australia; Department of Anaesthetics and Institute of Academic Surgery, Royal Prince Alfred Hospital, Camperdown, Australia.
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Bonin EAC, Lejeune N, Szymkowicz E, Bonhomme V, Martial C, Gosseries O, Laureys S, Thibaut A. Assessment and management of pain/nociception in patients with disorders of consciousness or locked-in syndrome: A narrative review. Front Syst Neurosci 2023; 17:1112206. [PMID: 37021037 PMCID: PMC10067681 DOI: 10.3389/fnsys.2023.1112206] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 03/06/2023] [Indexed: 04/07/2023] Open
Abstract
The assessment and management of pain and nociception is very challenging in patients unable to communicate functionally such as patients with disorders of consciousness (DoC) or in locked-in syndrome (LIS). In a clinical setting, the detection of signs of pain and nociception by the medical staff is therefore essential for the wellbeing and management of these patients. However, there is still a lot unknown and a lack of clear guidelines regarding the assessment, management and treatment of pain and nociception in these populations. The purpose of this narrative review is to examine the current knowledge regarding this issue by covering different topics such as: the neurophysiology of pain and nociception (in healthy subjects and patients), the source and impact of nociception and pain in DoC and LIS and, finally, the assessment and treatment of pain and nociception in these populations. In this review we will also give possible research directions that could help to improve the management of this specific population of severely brain damaged patients.
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Affiliation(s)
- Estelle A. C. Bonin
- Coma Science Group, GIGA-Consciousness Thematic Unit, GIGA-Research, Liège, Belgium
- Centre du Cerveau, Liège University Hospital, Liège, Belgium
| | - Nicolas Lejeune
- Coma Science Group, GIGA-Consciousness Thematic Unit, GIGA-Research, Liège, Belgium
- Centre Hospitalier Neurologique (CHN) William Lennox, Saint-Luc Hospital Group, Ottignies-Louvain-la-Neuve, Belgium
- Institute of Neuroscience, Université catholique de Louvain, Brussels, Belgium
| | - Emilie Szymkowicz
- Coma Science Group, GIGA-Consciousness Thematic Unit, GIGA-Research, Liège, Belgium
- Centre du Cerveau, Liège University Hospital, Liège, Belgium
| | - Vincent Bonhomme
- Department of Anesthesia and Intensive Care Medicine, Liège University Hospital, Liège, Belgium
- Anesthesia and Perioperative Neuroscience Laboratory, GIGA-Consciousness Thematic Unit, GIGA-Research, Liège, Belgium
| | - Charlotte Martial
- Coma Science Group, GIGA-Consciousness Thematic Unit, GIGA-Research, Liège, Belgium
- Centre du Cerveau, Liège University Hospital, Liège, Belgium
| | - Olivia Gosseries
- Coma Science Group, GIGA-Consciousness Thematic Unit, GIGA-Research, Liège, Belgium
- Centre du Cerveau, Liège University Hospital, Liège, Belgium
| | - Steven Laureys
- Coma Science Group, GIGA-Consciousness Thematic Unit, GIGA-Research, Liège, Belgium
- Centre du Cerveau, Liège University Hospital, Liège, Belgium
- Joint International Research Unit on Consciousness, CERVO Brain Research Centre, Centre Intégré Universitaire de Santé et Services Sociaux (CIUSS), University Laval, Québec City, QC, Canada
| | - Aurore Thibaut
- Coma Science Group, GIGA-Consciousness Thematic Unit, GIGA-Research, Liège, Belgium
- Centre du Cerveau, Liège University Hospital, Liège, Belgium
- *Correspondence: Aurore Thibaut,
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24
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Jeanty A, Bouby L, Bonhomme V, Balfourier F, Debiton C, Dham C, Ivorra S, Ros J, Evin A. Barley systematics and taxonomy foreseen by seed morphometric variation. PLoS One 2023; 18:e0285195. [PMID: 37195931 DOI: 10.1371/journal.pone.0285195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 04/17/2023] [Indexed: 05/19/2023] Open
Abstract
Since its Neolithic domestication in the Fertile Crescent, barley has spread to all continents and represents a major cereal in many modern agrarian systems. Current barley diversity includes thousands of varieties divided into four main categories corresponding to 2-row and 6-row subspecies and naked and hulled types, each of them with winter and spring varieties. This diversity is associated to different uses and allow cultivation in diverse environments. We used a large dataset of 58 varieties of French origin, (1) to assess the taxonomic signal in barley grain measurements comparing 2-row and 6-row subspecies, and naked and hulled types; (2) to test the impact of the sowing period and interannual variation on the grains size and shape; (3) to investigate the existence of morphological differences between winter and spring types; and finally (4) to contrast the relationship between the morphometric and genetic proximity. Size and shape of 1980 modern barley caryopses were quantified through elliptic Fourier Transforms and traditional size measurements. Our results indicate that barley grains record morphological diversity of the ear (89.3% classification accuracy between 2-row/6-row subspecies; 85.2% between hulled and naked type), sowing time of the grains (from 65.6% to 73.3% within barley groups), and environmental conditions during its cultivation and varietal diversity. This study opens perspectives for studying archaeological barley seeds and tracing the barley diversity and evolution since the Neolithic.
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Affiliation(s)
- Angèle Jeanty
- ISEM, CNRS, EPHE, IRD, Univ Montpellier, Montpellier, France
| | - Laurent Bouby
- ISEM, CNRS, EPHE, IRD, Univ Montpellier, Montpellier, France
| | - Vincent Bonhomme
- ISEM, CNRS, EPHE, IRD, Univ Montpellier, Montpellier, France
- Athéna, Lacamp, Roquedur, France
| | | | | | - Camille Dham
- ISEM, CNRS, EPHE, IRD, Univ Montpellier, Montpellier, France
| | - Sarah Ivorra
- ISEM, CNRS, EPHE, IRD, Univ Montpellier, Montpellier, France
| | - Jérôme Ros
- ISEM, CNRS, EPHE, IRD, Univ Montpellier, Montpellier, France
| | - Allowen Evin
- ISEM, CNRS, EPHE, IRD, Univ Montpellier, Montpellier, France
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Remy H, Bicego A, Faymonville ME, Bonhomme V, Vanhaudenhuyse A. [Interest of a biopsychosocial approach in the management of a patient with chronic pain : a narrative review]. Rev Med Liege 2022; 77:715-721. [PMID: 36484749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Pain is generally perceived as a sensory, emotional and cognitive aggression by the patient who suffers from it and as the enemy that must be defeated by the physician. It may become chronic, and the passage from the acute phase to the chronic phase cannot be explained in a single way. Indeed, multiple factors come into play: biological, psychological and socio-professional. The patient's quality of life then deteriorates and places him/her in a vicious cycle of pain. The assessment of the different components of pain (sensory, emotional, cognitive and behavioural) and its maintenance factors allow for the implementation of therapeutic strategies, both physical and psychological, adapted to every patient. Due to the complexity of chronic pain management, a multidisciplinary strategy is being developed, with a global approach according to the biopsychosocial perspective, including non-pharmacological approaches, with the objective of allowing the patient to be autonomous in the management of his/her symptoms.
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Affiliation(s)
- H Remy
- Service d'Anesthésie, Ste-Anne St-Remi Clinic (CHIREC), Bruxelles, Belgique.,Département d'Algologie, Clinique St-Elisabeth (CHC), Verviers, Belgique
| | - A Bicego
- Sensation-Perception Research Group, GIGA Consciousness, ULiège, Belgique
| | - M-E Faymonville
- Sensation-Perception Research Group, GIGA Consciousness, ULiège, Belgique.,Centre Arsène Burny, ULiège, Belgique
| | - V Bonhomme
- Sensation-Perception Research Group, GIGA Consciousness, ULiège, Belgique.,Département d'Anesthésie et Soins intensifs, CHU Liège, Belgique.,Centre Interdisciplinaire d'Algologie, CHU Liège, Belgique
| | - A Vanhaudenhuyse
- Sensation-Perception Research Group, GIGA Consciousness, ULiège, Belgique.,Centre Interdisciplinaire d'Algologie, CHU Liège, Belgique
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26
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Pissarra J, Dorkeld F, Loire E, Bonhomme V, Sereno D, Lemesre JL, Holzmuller P. SILVI, an open-source pipeline for T-cell epitope selection. PLoS One 2022; 17:e0273494. [PMID: 36070252 PMCID: PMC9451077 DOI: 10.1371/journal.pone.0273494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 08/09/2022] [Indexed: 11/18/2022] Open
Abstract
High-throughput screening of available genomic data and identification of potential antigenic candidates have promoted the development of epitope-based vaccines and therapeutics. Several immunoinformatic tools are available to predict potential epitopes and other immunogenicity-related features, yet it is still challenging and time-consuming to compare and integrate results from different algorithms. We developed the R script SILVI (short for: from in silico to in vivo), to assist in the selection of the potentially most immunogenic T-cell epitopes from Human Leukocyte Antigen (HLA)-binding prediction data. SILVI merges and compares data from available HLA-binding prediction servers, and integrates additional relevant information of predicted epitopes, namely BLASTp alignments with host proteins and physical-chemical properties. The two default criteria applied by SILVI and additional filtering allow the fast selection of the most conserved, promiscuous, strong binding T-cell epitopes. Users may adapt the script at their discretion as it is written in open-source R language. To demonstrate the workflow and present selection options, SILVI was used to integrate HLA-binding prediction results of three example proteins, from viral, bacterial and parasitic microorganisms, containing validated epitopes included in the Immune Epitope Database (IEDB), plus the Human Papillomavirus (HPV) proteome. Applying different filters on predicted IC50, hydrophobicity and mismatches with host proteins allows to significantly reduce the epitope lists with favourable sensitivity and specificity to select immunogenic epitopes. We contemplate SILVI will assist T-cell epitope selections and can be continuously refined in a community-driven manner, helping the improvement and design of peptide-based vaccines or immunotherapies. SILVI development version is available at: github.com/JoanaPissarra/SILVI2020 and https://doi.org/10.5281/zenodo.6865909.
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Affiliation(s)
- Joana Pissarra
- UMR INTERTRYP, IRD, CIRAD, University of Montpellier (I-MUSE), Montpellier, France
- * E-mail:
| | - Franck Dorkeld
- UMR CBGP, INRAE, CIRAD, IRD, Montpellier SupAgro, University of Montpellier (I-MUSE), Montpellier, France
| | - Etienne Loire
- UMR ASTRE, CIRAD, INRAE, University of Montpellier (I-MUSE), Montpellier, France
| | - Vincent Bonhomme
- ISEM, CNRS, EPHE, IRD, University of Montpellier (I-MUSE), Montpellier, France
| | - Denis Sereno
- UMR INTERTRYP, IRD, CIRAD, University of Montpellier (I-MUSE), Montpellier, France
| | - Jean-Loup Lemesre
- UMR INTERTRYP, IRD, CIRAD, University of Montpellier (I-MUSE), Montpellier, France
| | - Philippe Holzmuller
- UMR ASTRE, CIRAD, INRAE, University of Montpellier (I-MUSE), Montpellier, France
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Piette N, Carella M, Beck F, Hans G, Bonhomme V, Lecoq JP. Effectiveness of intraoperative cell salvage in aseptic revision total hip arthroplasty: a single-center retrospective study. Acta Anaest Belg 2022. [DOI: 10.56126/73.3.19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
Background and study aim: Revision of total hip arthroplasty (rTHA) is associated with significant blood loss. We have used intraoperative cell savage (ICS) systematically in these patients for the last ten years. We sought to determine how often re-suspended red blood cells could be re-transfused and to identify predictors of re- transfusion.
Materials and methods: Patients who underwent aseptic rTHA between January 2011 and December 2020 at our center were enrolled in this retrospective observational study. Exclusion criteria were revision for infection or tumor. The primary outcome was the successful use of ICS defined as the ability to re-transfuse at least 125 mL of ICS blood. Secondary outcome measures included re-transfused ICS blood volume, aspirated blood volume, allogenic blood transfusion, and post-operative hemoglobin level. Uni- and multi-variable logistic regressions were used to identify patients and procedure characteristics associated with successful ICS. Mann-Whitney U tests, Student’s t tests and Chi-square tests were used to compare outcomes between patients with and without successful ICS. A P value < 0.05 was considered statistically significant.
Results: ICS was successful in 93 (69.9%) out of 133 patients. The extent of revision, categorized as isolated acetabulum, isolated femur, or combined revision was the only predictor of successful ICS. Postoperative hemoglobin levels as well as rate and amount of allogenic red blood cells transfusion did not differ between the groups.
Conclusions: ICS is useful in most patients undergoing rTHA. Those requiring a combined revision have the greatest chance of successful re-infusion.
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Quitzau M, Frelat R, Bonhomme V, Möllmann C, Nagelkerke L, Bejarano S. Traits, landmarks and outlines: Three congruent sides of a tale on coral reef fish morphology. Ecol Evol 2022; 12:e8787. [PMID: 35475185 PMCID: PMC9021933 DOI: 10.1002/ece3.8787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 01/27/2022] [Accepted: 03/15/2022] [Indexed: 11/11/2022] Open
Affiliation(s)
- Marita Quitzau
- Aquaculture and Fisheries Group Wageningen Institute of Animal Sciences Wageningen University and Research Wageningen The Netherlands
| | - Romain Frelat
- Aquaculture and Fisheries Group Wageningen Institute of Animal Sciences Wageningen University and Research Wageningen The Netherlands
| | - Vincent Bonhomme
- UMR 5554 Institut des Sciences de l’Evolution, équipe Dynamique de la biodiversité Anthropo‐écologie Université de Montpellier CNRS IRD Montpellier Cedex 05 France
| | - Christian Möllmann
- Centre for Earth System Research and Sustainability (CEN) Institute of Marine Ecosystem and Fishery Science University of Hamburg Hamburg Germany
| | - Leopold Nagelkerke
- Aquaculture and Fisheries Group Wageningen Institute of Animal Sciences Wageningen University and Research Wageningen The Netherlands
| | - Sonia Bejarano
- Reef Systems Research Group Ecology Department Leibniz Centre for Tropical Marine Research Bremen Germany
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Bouby L, Bonhomme V, Cabanis M, Durand F, Figueiral I, Flottes L, Marinval P, Martin L, Paradis L, Pinaud R, Ros J, Rovira N, Tillier M. Talkin' About a Revolution. Changes and Continuities in Fruit Use in Southern France From Neolithic to Roman Times Using Archaeobotanical Data (ca. 5,800 BCE - 500 CE). Front Plant Sci 2022; 13:719406. [PMID: 35197992 PMCID: PMC8859487 DOI: 10.3389/fpls.2022.719406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 01/05/2022] [Indexed: 06/14/2023]
Abstract
The use and socio-environmental importance of fruits dramatically changed after the emergence of arboriculture and fruit domestication in the eastern Mediterranean, between the 5th and the 3rd millennia BCE. Domesticated fruits together with cultivation techniques apparently reached the western Mediterranean via colonial activities during the 1st millennium BCE - early 1st millennium CE. However, the pace and chronology of this diffusion as well as the recompositions in diversity, to adapt to new socio-environmental conditions, remain poorly known. In this study we investigate archaeobotanical records in Southern France from the Neolithic to the end of the Roman empire (ca. 5,800 BCE - 500 CE) to assess changes in fruit use as well as the emergence, spread and evolution of fruit cultivation. We explore changes in native traditions faced with innovations brought by Mediterranean colonization and how domesticated fruit cultivation spread from the Mediterranean to more temperate areas. Archaeobotanical data from 577 assemblages were systematically analyzed distinguishing two datasets according to preservation of plant remains (charred vs. uncharred), as this impacts on the quantity and diversity of taxa. The 47 fruit taxa identified were organized in broad categories according to their status and origin: exotic, allochtonous cultivated, indigenous cultivated, wild native. We also analyzed diversity, quantity of fruits compared to the total of economic plants and spatio-temporal variations in the composition of fruit assemblages using correspondence factor analyses. Archaeobotanical data reflect variations and continuities in the diversity of species used through time and space. In the Mediterranean area, significant changes related to the arrival of new plants and development of fruit cultivation occurred mainly, first during the Iron Age (6th-5th c. BCE), then in the beginning of the Roman period. Large cities played a major role in this process. In agreement with archeological information, archaeobotanical data reveal the predominance of viticulture in both periods. However, arboriculture also included other fruit species that have been subject to less intensive and specialized cultivation practices. Most significantly, this study pinpoints the continuous contribution of native, supposedly wild fruits throughout the chronology. Despite the homogenizing Roman influence, results reveal clear differences between the Mediterranean and temperate regions.
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Affiliation(s)
- Laurent Bouby
- ISEM, Université Montpellier, CNRS, IRD, EPHE, Montpellier, France
| | - Vincent Bonhomme
- ISEM, Université Montpellier, CNRS, IRD, EPHE, Montpellier, France
| | - Manon Cabanis
- Institut national de recherches en archéologie préventive (INRAP), Paris, France
| | - Frédérique Durand
- Institut national de recherches en archéologie préventive (INRAP), Paris, France
- TRACES, Université Jean Jaurès, CNRS, Ministère de la Culture, Toulouse, France
| | - Isabel Figueiral
- ISEM, Université Montpellier, CNRS, IRD, EPHE, Montpellier, France
- Institut national de recherches en archéologie préventive (INRAP), Paris, France
| | | | - Philippe Marinval
- ASM, Université Paul Valery-Montpellier 3, CNRS, MCC, INRAP, Montpellier, France
| | - Lucie Martin
- Laboratoire d’archéologie préhistorique et anthropologie, Université de Genève, Geneva, Switzerland
- EDYTEM, Le Bourget-du-Lac, France
| | - Laure Paradis
- ISEM, Université Montpellier, CNRS, IRD, EPHE, Montpellier, France
| | - Rachël Pinaud
- ASM, Université Paul Valery-Montpellier 3, CNRS, MCC, INRAP, Montpellier, France
| | - Jérôme Ros
- ISEM, Université Montpellier, CNRS, IRD, EPHE, Montpellier, France
| | - Núria Rovira
- ASM, Université Paul Valery-Montpellier 3, CNRS, MCC, INRAP, Montpellier, France
| | - Margaux Tillier
- ISEM, Université Montpellier, CNRS, IRD, EPHE, Montpellier, France
- ASM, Université Paul Valery-Montpellier 3, CNRS, MCC, INRAP, Montpellier, France
- Ipso Facto Scop, Arles, France
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de Noordhout AM, Mouchamps M, Remacle JM, Delstanche S, Bonhomme V, Gonce M. Subthalamic deep brain stimulation versus best medical treatment: a 12-year follow-up. Acta Neurol Belg 2022; 122:197-202. [PMID: 35084704 PMCID: PMC8894213 DOI: 10.1007/s13760-022-01874-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 01/17/2022] [Indexed: 11/26/2022]
Abstract
Purpose Electrical stimulation of the sub-thalamic nucleus (STN-DBS) is well established to alleviate motor fluctuations in advanced Parkinson’s disease but little is known about its very long-term efficacy. Methods We followed over 12 years 15 parkinsonian patients having undergone STN-DBS and compared them to a matched group of 14 patients with best medical drug therapy. All had been considered as good candidates for surgery. They were allocated to each group depending on their own decision. Results After 12 years, mortality rates were similar in both groups. In the DBS group, best “on” UPDRS III scores (on medications, on stimulation) remained significantly better and dyskinesia shorter and weaker than in the drug-treated group (on medication only). Yet, looking at independent life and quality of life (QoL) evaluated with PDQ39, no significant difference could be observed between groups at the end of follow-up, probably due to development of dopa- and stimulation-resistant motor and non-motor symptoms like falls, freezing, dementia, apathy and depression, the latter two more frequent in the DBS group. Conclusion Drug- and DBS-resistant symptoms and signs occur more often after long disease evolution and in elder patients. It might be why differences in QoL between both groups no longer existed after twelve years as, compared to other studies, our patients were older at inclusion.
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Affiliation(s)
| | | | | | - Stéphanie Delstanche
- University Department of Neurology, Hôpital de la Citadelle, 4000, Liège, Belgium
| | - Vincent Bonhomme
- Department of Anaesthesiology, Hôpital de la Citadelle, 4000, Liège, Belgium
| | - Michel Gonce
- University Department of Neurology, Hôpital de la Citadelle, 4000, Liège, Belgium
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31
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Carella M, Beck F, Tran G, Bonhomme V, Franssen C. In Response. Anesth Analg 2021; 133:e43-e46. [PMID: 34403403 DOI: 10.1213/ane.0000000000005646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Michele Carella
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium,
| | - Florian Beck
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium,
| | - Gabriel Tran
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium,
| | - Vincent Bonhomme
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium, University Department of Anesthesia and Intensive Care Medicine, Centre Hospitalier Regional de la Citadelle, Liege, Belgium, Anesthesia and Intensive Care Laboratory, GIGA-Consciousness Thematic Unit, GIGA-Research, Liege University, Liege, Belgium
| | - Colette Franssen
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
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Del Pozo SM, Laufs H, Bonhomme V, Laureys S, Balenzuela P, Tagliazucchi E. Unconsciousness reconfigures modular brain network dynamics. Chaos 2021; 31:093117. [PMID: 34598477 DOI: 10.1063/5.0046047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 08/04/2021] [Indexed: 06/13/2023]
Abstract
The dynamic core hypothesis posits that consciousness is correlated with simultaneously integrated and differentiated assemblies of transiently synchronized brain regions. We represented time-dependent functional interactions using dynamic brain networks and assessed the integrity of the dynamic core by means of the size and flexibility of the largest multilayer module. As a first step, we constrained parameter selection using a newly developed benchmark for module detection in heterogeneous temporal networks. Next, we applied a multilayer modularity maximization algorithm to dynamic brain networks computed from functional magnetic resonance imaging (fMRI) data acquired during deep sleep and under propofol anesthesia. We found that unconsciousness reconfigured network flexibility and reduced the size of the largest spatiotemporal module, which we identified with the dynamic core. Our results represent a first characterization of modular brain network dynamics during states of unconsciousness measured with fMRI, adding support to the dynamic core hypothesis of human consciousness.
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Affiliation(s)
- Sofía Morena Del Pozo
- Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires 1428, Argentina
| | - Helmut Laufs
- Department of Neurology, Christian Albrechts University, Kiel 24118, Germany
| | - Vincent Bonhomme
- Anesthesia and Intensive Care Laboratory, GIGA-Consciousness, GIGA Institute, University of Liège, Liège 4000, Belgium
| | - Steven Laureys
- Coma Science Group, GIGA-Consciousness, University of Liège, Liège 4000, Belgium
| | - Pablo Balenzuela
- Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires 1428, Argentina
| | - Enzo Tagliazucchi
- Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires 1428, Argentina
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Sanz Perl Y, Pallavicini C, Pérez Ipiña I, Demertzi A, Bonhomme V, Martial C, Panda R, Annen J, Ibañez A, Kringelbach M, Deco G, Laufs H, Sitt J, Laureys S, Tagliazucchi E. Perturbations in dynamical models of whole-brain activity dissociate between the level and stability of consciousness. PLoS Comput Biol 2021; 17:e1009139. [PMID: 34314430 PMCID: PMC8315553 DOI: 10.1371/journal.pcbi.1009139] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 06/01/2021] [Indexed: 01/07/2023] Open
Abstract
Consciousness transiently fades away during deep sleep, more stably under anesthesia, and sometimes permanently due to brain injury. The development of an index to quantify the level of consciousness across these different states is regarded as a key problem both in basic and clinical neuroscience. We argue that this problem is ill-defined since such an index would not exhaust all the relevant information about a given state of consciousness. While the level of consciousness can be taken to describe the actual brain state, a complete characterization should also include its potential behavior against external perturbations. We developed and analyzed whole-brain computational models to show that the stability of conscious states provides information complementary to their similarity to conscious wakefulness. Our work leads to a novel methodological framework to sort out different brain states by their stability and reversibility, and illustrates its usefulness to dissociate between physiological (sleep), pathological (brain-injured patients), and pharmacologically-induced (anesthesia) loss of consciousness.
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Affiliation(s)
- Yonatan Sanz Perl
- Department of Physics, University of Buenos Aires, Intendente Güiraldes 2160—Ciudad Universitaria—Buenos Aires, Argentina
- National Scientific and Technical Research Council (CONICET), CABA, Buenos Aires, Argentina
- Cognitive Neuroscience Center (CNC), Universidad de San Andrés, Buenos Aires, Argentina
- Center for Brain and Cognition, Computational Neuroscience Group, Universitat Pompeu Fabra, Barcelona, Spain
- * E-mail: (YSP); (ET)
| | - Carla Pallavicini
- Department of Physics, University of Buenos Aires, Intendente Güiraldes 2160—Ciudad Universitaria—Buenos Aires, Argentina
- National Scientific and Technical Research Council (CONICET), CABA, Buenos Aires, Argentina
- Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Buenos Aires, Argentina
| | - Ignacio Pérez Ipiña
- Department of Physics, University of Buenos Aires, Intendente Güiraldes 2160—Ciudad Universitaria—Buenos Aires, Argentina
- Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Buenos Aires, Argentina
| | - Athena Demertzi
- Physiology of Cognition Research Lab, GIGA-Consciousness, GIGA Institute, University of Liège, Liège, Belgium
| | - Vincent Bonhomme
- Anesthesia and Intensive Care Laboratory, GIGA-Consciousness, GIGA Institute, University of Liège, Liège, Belgium
- University Department of Anesthesia and Intensive Care Medicine, Centre Hospitalier Régional de la Citadelle (CHR Citadelle), Liège, Belgium
- Department of Anesthesia and Intensive Care Medicine, Centre Hospitalier Universitaire de Liège (CHU Liège), Liège, Belgium
| | - Charlotte Martial
- Coma Science Group, GIGA Consciousness, University of Liège, Liège, Belgium
- Centre du Cerveau², Centre Hospitalier Universitaire de Liège (CHU Liège), Liège, Belgium
| | - Rajanikant Panda
- Coma Science Group, GIGA Consciousness, University of Liège, Liège, Belgium
- Centre du Cerveau², Centre Hospitalier Universitaire de Liège (CHU Liège), Liège, Belgium
| | - Jitka Annen
- Coma Science Group, GIGA Consciousness, University of Liège, Liège, Belgium
- Centre du Cerveau², Centre Hospitalier Universitaire de Liège (CHU Liège), Liège, Belgium
| | - Agustin Ibañez
- National Scientific and Technical Research Council (CONICET), CABA, Buenos Aires, Argentina
- Cognitive Neuroscience Center (CNC), Universidad de San Andrés, Buenos Aires, Argentina
- Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibáñez, Santiago, Chile
- Global Brain Health Institute (GBHI), University of California-San Francisco (UCSF), San Francisco, California, United States and Trinity College Dublin, Ireland
| | - Morten Kringelbach
- Department of Psychiatry, University of Oxford, Oxford, United Kingdom
- Center for Music in the Brain, Department of Clinical Medicine, Aarhus University, Århus, Denmark
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- Centre for Eudaimonia and Human Flourishing, University of Oxford, Oxford, United Kingdom
| | - Gustavo Deco
- Center for Brain and Cognition, Computational Neuroscience Group, Universitat Pompeu Fabra, Barcelona, Spain
- Department of Information and Communication Technologies, Universitat Pompeu Fabra, Barcelona, Spain
- Institució Catalana de la Recerca i Estudis Avançats (ICREA), Barcelona, Spain
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
- School of Psychological Sciences, Monash University, Melbourne, Australia
| | - Helmut Laufs
- Department of Neurology and Brain Imaging Center, Goethe University, Frankfurt am Main, Germany
- Department of Neurology, Christian Albrechts University, Kiel, Germany
| | - Jacobo Sitt
- Institut du Cerveau et de la Moelle épinière, ICM, Paris, France
- Inserm U 1127, Paris, France
- CNRS UMR 7225, Paris, France
| | - Steven Laureys
- Coma Science Group, GIGA Consciousness, University of Liège, Liège, Belgium
- Centre du Cerveau², Centre Hospitalier Universitaire de Liège (CHU Liège), Liège, Belgium
| | - Enzo Tagliazucchi
- Department of Physics, University of Buenos Aires, Intendente Güiraldes 2160—Ciudad Universitaria—Buenos Aires, Argentina
- National Scientific and Technical Research Council (CONICET), CABA, Buenos Aires, Argentina
- Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibáñez, Santiago, Chile
- Department of Neurology, Christian Albrechts University, Kiel, Germany
- * E-mail: (YSP); (ET)
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Carella M, Tran G, Bonhomme V, Franssen C. In Response. Anesth Analg 2021; 133:e22-e23. [PMID: 34257205 DOI: 10.1213/ane.0000000000005611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Michele Carella
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium,
| | - Gabriel Tran
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium,
| | - Vincent Bonhomme
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium, University Department of Anesthesia and Intensive Care Medicine, Centre Hospitalier Regional de la Citadelle, Liege, Belgium, Anesthesia and Intensive Care Laboratory, GIGA-Consciousness Thematic Unit, GIGA-Research, Liege University, Liege, Belgium
| | - Colette Franssen
- Department of Anesthesia and Intensive Care Medicine, Liege University Hospital, Liege, Belgium
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Michot T, Duysinx P, Belle F, Dresse C, Montupil J, Bonhomme V, Defresne A. [Intracerebroventricular infusion of morphine, bupivacaine and clonidine for the management of refractory neoplasic pain in a palliative care setting : a case report]. Rev Med Liege 2021; 76:614-619. [PMID: 34357714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Intracerebroventricular (ICV) infusion of morphine is a well-known technique to relieve intractable neoplasic pain when conventional analgesic strategies reach their limits. Through this case report, we present indications, assets, and drawbacks of this procedure in such conditions. We also describe the adaptation of the systemic analgesic treatment to allow discharge from the hospital to home settings. Thanks to the ICV infusion of a mixture of morphine, bupivacaine and clonidine, the patient was weaned from oral opioid medications and reached an acceptable level of comfort. This allowed him to be discharged from the hospital to go back home with a specific setting of mobile palliative care structure. The patient's family followed training about the device to prevent any technical trouble and to react in case of unwanted events.
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Affiliation(s)
- T Michot
- Département d'Anesthésie-Réanimation, CHU Liège, Belgique
| | - P Duysinx
- Service d'Anesthésie-Réanimation, CHR Citadelle, Liège, Belgique
| | - F Belle
- Service de Neurochirurgie, CHR Citadelle, Liège, Belgique
| | - C Dresse
- Service d'Anesthésie-Réanimation, CHR Citadelle, Liège, Belgique
| | - J Montupil
- Département d'Anesthésie-Réanimation, CHU Liège, Belgique
- Service d'Anesthésie-Réanimation, CHR Citadelle, Liège, Belgique
| | - V Bonhomme
- Département d'Anesthésie-Réanimation, CHU Liège, Belgique
- Service d'Anesthésie-Réanimation, CHR Citadelle, Liège, Belgique
| | - A Defresne
- Département d'Anesthésie-Réanimation, CHU Liège, Belgique
- Service d'Anesthésie-Réanimation, CHR Citadelle, Liège, Belgique
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Abstract
Quantifying phenotypes is a common practice for addressing questions regarding morphological variation. The time dedicated to data acquisition can vary greatly depending on methods and on the required quantity of information. Optimizing digitization effort can be done either by pooling datasets among users, by automatizing data collection, or by reducing the number of measurements. Pooling datasets among users is not without risk since potential errors arising from multiple operators in data acquisition prevent combining morphometric datasets. We present an analytical workflow to estimate within and among operator biases and to assess whether morphometric datasets can be pooled. We show that pooling and sharing data requires careful examination of the errors occurring during data acquisition, that the choice of morphometric approach influences amount of error, and that in some cases pooling data should be avoided. The demonstration is based on a worked example (Sus scrofa teeth) using a combinations of 18 morphometric approaches and datasets for which we identified and quantified several potential sources of errors in the workflow. We show that it is possible to estimate the analytical power of a study using a small subset of data to select the best morphometric protocol and to optimize the number of variables necessary for analysis. In particular, we focus on semi-landmarks, which often produce an inflation of variables in contrast to the number of available observations use in statistical testing. We show how the workflow can be used for optimizing digitization efforts and provide recommendations for best practices in error management.
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Affiliation(s)
- Allowen Evin
- Institut des Sciences de l'Evolution-Montpellier, UMR 5554-ISEM, CNRS, Université de Montpellier, IRD, EPHE, 2 place Eugène Bataillon, CC065, 34095 Montpellier Cedex 5, France
| | - Vincent Bonhomme
- Institut des Sciences de l'Evolution-Montpellier, UMR 5554-ISEM, CNRS, Université de Montpellier, IRD, EPHE, 2 place Eugène Bataillon, CC065, 34095 Montpellier Cedex 5, France
| | - Julien Claude
- Institut des Sciences de l'Evolution-Montpellier, UMR 5554-ISEM, CNRS, Université de Montpellier, IRD, EPHE, 2 place Eugène Bataillon, CC065, 34095 Montpellier Cedex 5, France
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Bonhomme V, Picq S, Ivorra S, Evin A, Pastor T, Bacilieri R, Lacombe T, Figueiral I, Terral JF, Bouby L. Eco-evo-devo implications and archaeobiological perspectives of trait covariance in fruits of wild and domesticated grapevines. PLoS One 2020; 15:e0239863. [PMID: 33156832 PMCID: PMC7647109 DOI: 10.1371/journal.pone.0239863] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 09/15/2020] [Indexed: 11/19/2022] Open
Abstract
The phenotypic changes that occurred during the domestication and diversification of grapevine are well known, particularly changes in seed morphology, but the functional causes and consequences behind these variations are poorly understood. Wild and domesticate grapes differ, among others, in the form of their pips: wild grapes produce roundish pips with short stalks and cultivated varieties have more elongated pips with longer stalks. Such variations of form are of first importance for archaeobotany since the pip form is, most often, the only remaining information in archaeological settings. This study aims to enlighten archaeobotanical record and grapevine pip development by better understanding how size and shape (co)variates between pip and berry in both wild and domesticated Vitis vinifera. The covariation of berry size, number of seeds per berry (“piposity”), pip size and pip shape were explored on 49 grapevine accessions sampled among Euro-Mediterranean traditional cultivars and wild grapevines. We show that for wild grapevine, the higher the piposity, the bigger the berry and the more elongated the pip. For both wild and domesticated grapevine, the longer is the pip, the more it has a “domesticated” shape. Consequences for archaeobotanical studies are tested and discussed, and these covariations allowed the inference of berry dimensions from archaeological pips from a Southern France Roman site. This systematic exploration sheds light on new aspects of pip-berry relationship, in both size and shape, on grapevine eco-evo-devo changes during domestication, and invites to explore further the functional ecology of grapevine pip and berry and notably the impact of cultivation practices and human selection on grapevine morphology.
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Affiliation(s)
- Vincent Bonhomme
- ISEM, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France
- Équipe « Dynamique de la biodiversité, anthropo-écologie », CC065 Montpellier Cedex 5, France
- * E-mail:
| | - Sandrine Picq
- ISEM, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France
- Équipe « Dynamique de la biodiversité, anthropo-écologie », CC065 Montpellier Cedex 5, France
- Laurentian Forestry Centre, Natural Resources Canada, Québec, Canada
| | - Sarah Ivorra
- ISEM, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France
- Équipe « Dynamique de la biodiversité, anthropo-écologie », CC065 Montpellier Cedex 5, France
| | - Allowen Evin
- ISEM, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France
- Équipe « Dynamique de la biodiversité, anthropo-écologie », CC065 Montpellier Cedex 5, France
| | - Thierry Pastor
- ISEM, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France
- Équipe « Dynamique de la biodiversité, anthropo-écologie », CC065 Montpellier Cedex 5, France
| | - Roberto Bacilieri
- UMR AGAP, Univ Montpellier, CIRAD, INRA, Montpellier SupAgro, Equipe « Diversité, Adaptation et Amélioration de la Vigne », Montpellier, France
| | - Thierry Lacombe
- UMR AGAP, Univ Montpellier, CIRAD, INRA, Montpellier SupAgro, Equipe « Diversité, Adaptation et Amélioration de la Vigne », Montpellier, France
| | - Isabel Figueiral
- ISEM, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France
- Équipe « Dynamique de la biodiversité, anthropo-écologie », CC065 Montpellier Cedex 5, France
| | - Jean-Frédéric Terral
- ISEM, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France
- Équipe « Dynamique de la biodiversité, anthropo-écologie », CC065 Montpellier Cedex 5, France
| | - Laurent Bouby
- ISEM, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France
- Équipe « Dynamique de la biodiversité, anthropo-écologie », CC065 Montpellier Cedex 5, France
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Abstract
In this narrative review, different aspects of electroencephalogram (EEG) monitoring during anesthesia are approached, with a special focus on cardiothoracic and vascular anesthesia, from the basic principles to more sophisticated diagnosis and monitoring utilities. The available processed EEG-derived indexes of the depth of the hypnotic component of anesthesia have well-defined limitations and usefulness. They prevent intraoperative awareness with recall in specific patient populations and under a specific anesthetic regimen. They prevent intraoperative overdose, and they shorten recovery times. They also help to avoid lengthy intraoperative periods of suppression activity, which are known to be deleterious in terms of outcome. Other than those available indexes, the huge amount of information contained in the EEG currently is being used only partially. Several other areas of interest regarding EEG during anesthesia have emerged in terms of anesthesia mechanisms elucidation, nociception monitoring, and diagnosis or prevention of brain insults.
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Affiliation(s)
- Javier Montupil
- University Department of Anesthesia and Intensive Care Medicine, CHR Citadelle, Liège, Belgium
| | - Aline Defresne
- Department of Anesthesia and Intensive Care Medicine, CHU Liege, Liège, Belgium
| | - Vincent Bonhomme
- Anesthesia and Intensive Care Laboratory, GIGA-Consciousness Thematic Unit, GIGA Research, Liege University, Liège, Belgium.
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Patlatzoglou K, Chennu S, Gosseries O, Bonhomme V, Wolff A, Laureys S. Generalized Prediction of Unconsciousness during Propofol Anesthesia using 3D Convolutional Neural Networks. Annu Int Conf IEEE Eng Med Biol Soc 2020; 2020:134-137. [PMID: 33017948 DOI: 10.1109/embc44109.2020.9175324] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Neuroscience has generated a number of recent advances in the search for the neural correlates of consciousness, but these have yet to find valuable real-world applications. Electroencephalography under anesthesia provides a powerful experimental setup to identify electrophysiological signatures of altered states of consciousness, as well as a testbed for developing systems for automatic diagnosis and prognosis of awareness in clinical settings. In this work, we use deep convolutional neural networks to automatically differentiate sub-anesthetic states and depths of anesthesia, solely from one second of raw EEG signal. Our results with leave-one-participant-out-cross-validation show that behavioral measures, such as the Ramsay score, can be used to learn generalizable neural networks that reliably predict levels of unconsciousness in unseen transitional anesthetic states, as well as in unseen experimental setups and behaviors. Our findings highlight the potential of deep learning to detect progressive changes in anesthetic-induced unconsciousness with higher granularity than behavioral or pharmacological markers. This work has broader significance for identifying generalized patterns of brain activity that index states of consciousness.Clinical Relevance- In the United States alone, over 100,000 people receive general anesthesia every day, from which up to 1% is affected by unintended intraoperative awareness [1]. Despite this, brain-based monitoring of consciousness is not common in the clinic, and has had mixed success [2]. Given this context, our aim is to develop and explore an automated deep learning model that accurately predicts and interprets the depth and quality of anesthesia from the raw EEG signal.
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Bonhomme V, Franssen C, Lamy M. A dedication to neuroanesthesia, research, and mentorship. Acta Anaest Belg 2020. [DOI: 10.56126/71.3.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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41
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Saitta ET, Stockdale MT, Longrich NR, Bonhomme V, Benton MJ, Cuthill IC, Makovicky PJ. An effect size statistical framework for investigating sexual dimorphism in non-avian dinosaurs and other extinct taxa. Biol J Linn Soc Lond 2020. [DOI: 10.1093/biolinnean/blaa105] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Abstract
Despite reports of sexual dimorphism in extinct taxa, such claims in non-avian dinosaurs have been rare over the last decade and have often been criticized. Since dimorphism is widespread in sexually reproducing organisms today, under-reporting in the literature might suggest either methodological shortcomings or that this diverse group exhibited highly unusual reproductive biology. Univariate significance testing, especially for bimodality, is ineffective and prone to false negatives. Species recognition and mutual sexual selection hypotheses, therefore, may not be required to explain supposed absence of sexual dimorphism across the grade (a type II error). Instead, multiple lines of evidence support sexual selection and variation of structures consistent with secondary sexual characteristics, strongly suggesting sexual dimorphism in non-avian dinosaurs. We propose a framework for studying sexual dimorphism in fossils, focusing on likely secondary sexual traits and testing against all alternate hypotheses for variation in them using multiple lines of evidence. We use effect size statistics appropriate for low sample sizes, rather than significance testing, to analyse potential divergence of growth curves in traits and constrain estimates for dimorphism magnitude. In many cases, estimates of sexual variation can be reasonably accurate, and further developments in methods to improve sex assignments and account for intrasexual variation (e.g. mixture modelling) will improve accuracy. It is better to compare estimates for the magnitude of and support for dimorphism between datasets than to dichotomously reject or fail to reject monomorphism in a single species, enabling the study of sexual selection across phylogenies and time. We defend our approach with simulated and empirical data, including dinosaur data, showing that even simple approaches can yield fairly accurate estimates of sexual variation in many cases, allowing for comparison of species with high and low support for sexual variation.
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Affiliation(s)
- Evan T Saitta
- Life Sciences Section, Integrative Research Center, Field Museum of Natural History, Chicago, IL, USA
| | | | - Nicholas R Longrich
- Department of Biology and Biochemistry and Milner Centre for Evolution, University of Bath, Bath, UK
| | - Vincent Bonhomme
- Institut des sciences de l’évolution, Université de Montpellier, Montpellier, France
| | | | - Innes C Cuthill
- School of Biological Sciences, University of Bristol, Bristol, UK
| | - Peter J Makovicky
- Department of Earth and Environmental Sciences, University of Minnesota, Minneapolis, MN, USA
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Marin S, Gibert A, Archambeau J, Bonhomme V, Lascoste M, Pujol B. Potential adaptive divergence between subspecies and populations of snapdragon plants inferred from Q ST -F ST comparisons. Mol Ecol 2020; 29:3010-3021. [PMID: 32652730 PMCID: PMC7540467 DOI: 10.1111/mec.15546] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/01/2020] [Accepted: 07/03/2020] [Indexed: 11/30/2022]
Abstract
Phenotypic divergence among natural populations can be explained by natural selection or by neutral processes such as drift. Many examples in the literature compare putatively neutral (FST ) and quantitative genetic (QST ) differentiation in multiple populations to assess their evolutionary signature and identify candidate traits involved with local adaptation. Investigating these signatures in closely related or recently diversified species has the potential to shed light on the divergence processes acting at the interspecific level. Here, we conducted this comparison in two subspecies of snapdragon plants (eight populations of Antirrhinum majus pseudomajus and five populations of A. m. striatum) in a common garden experiment. We also tested whether altitude was involved with population phenotypic divergence. Our results identified candidate phenological and morphological traits involved with local adaptation. Most of these traits were identified in one subspecies but not the other. Phenotypic divergence increased with altitude for a few biomass-related traits, but only in A. m. striatum. These traits therefore potentially reflect A. m. striatum adaptation to altitude. Our findings imply that adaptive processes potentially differ at the scale of A. majus subspecies.
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Affiliation(s)
- Sara Marin
- PSL Université Paris, EPHE-UPVD-CNRS, USR 3278 CRIOBE, Université de Perpignan, Perpignan Cedex, France.,Laboratoire Évolution & Diversité Biologique (EDB UMR 5174), Université Fédérale de Toulouse Midi-Pyrénées, CNRS, Toulouse, France
| | - Anaïs Gibert
- PSL Université Paris, EPHE-UPVD-CNRS, USR 3278 CRIOBE, Université de Perpignan, Perpignan Cedex, France
| | | | - Vincent Bonhomme
- Institut des Sciences de l'Évolution (ISEM), Montpellier Cedex, France
| | - Mylène Lascoste
- Laboratoire Évolution & Diversité Biologique (EDB UMR 5174), Université Fédérale de Toulouse Midi-Pyrénées, CNRS, Toulouse, France
| | - Benoit Pujol
- PSL Université Paris, EPHE-UPVD-CNRS, USR 3278 CRIOBE, Université de Perpignan, Perpignan Cedex, France.,Laboratoire Évolution & Diversité Biologique (EDB UMR 5174), Université Fédérale de Toulouse Midi-Pyrénées, CNRS, Toulouse, France
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Remacle T, Mauviel S, Renwart HJ, Ghassempour K, Belle F, Lückers O, Bex V, Remacle JM, Bonhomme V. Long-Term Multicolumn-Lead Spinal Cord Stimulation Efficacy in Patients with Failed Back Surgery Syndrome: A Six-Year Prospective Follow-up Study. World Neurosurg 2020; 142:e245-e252. [PMID: 32599205 DOI: 10.1016/j.wneu.2020.06.181] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/20/2020] [Accepted: 06/22/2020] [Indexed: 12/13/2022]
Abstract
OBJECTIVE The use of multicolumn-lead spinal cord stimulation (SCS) to control back pain (BP) and leg pain (LP) in patients with failed back surgery syndrome (FBSS) in the short term and mid-term has been well documented. Our study investigated whether SCS remained efficient after 72 months. METHODS In an observational, single-center study, we assessed SCS efficacy in 62 patients with FBSS patients. BP, LP, and magnitude of daily activity limitation (DAL) were graded using a 0-10 visual analog scale (VAS) preoperatively and at 2, 6, 12, 24, 36, and 72 months after SCS implantation. Sleep quality, use of medications, and complications were also recorded. RESULTS Of the 62 patients, 15 with complete follow-up data available were still using their SCS device at 72 months (SCS+). For these patients, the VAS scores for BP, LP, and DAL had changed from a median of 9 (interquartile range [IQR], 8.5-10), 7 (IQR, 6-8), and 8 (IQR, 8-9) preoperatively to a median of 4 (IQR, 3-4.5), 3 (IQR, 1.5-3.5), and 3 (IQR, 2-4) at 72 months. Their quality of sleep and analgesic medication consumption had also improved. In a subset of patients no longer using the SCS device after 72 months (SCS-), the VAS scores for BP, LP, and DAL, quality of sleep, and medication consumption were comparable to those for the SCS+ group. The SCS- group was less satisfied with the technique and were less professionally active than were the SCS+ group. CONCLUSIONS The SCS device provides sustained beneficial effects on BP, LP, DAL, sleep, and medication consumption in patients with FBSS still using it at 72 months postoperatively. Further studies are needed to identify the factors of adherence to the technique and the chances of success compared with the natural evolution of FBSS.
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Affiliation(s)
- Thibault Remacle
- Department of Neurosurgery, Regional Hospital Center Citadelle, Liege, Belgium; Department of Neurosurgery, University Hospital Center Liege, Liege, Belgium.
| | - Stephane Mauviel
- Department of Algology, Regional Hospital Center Citadelle, Liege, Belgium
| | - Henri-Jean Renwart
- Department of Neurosurgery, Regional Hospital Center Citadelle, Liege, Belgium
| | - Keyvan Ghassempour
- Department of Neurosurgery, Regional Hospital Center Citadelle, Liege, Belgium
| | - Frederic Belle
- Department of Neurosurgery, Regional Hospital Center Citadelle, Liege, Belgium
| | - Olivier Lückers
- Department of Neurosurgery, Regional Hospital Center Citadelle, Liege, Belgium
| | - Vincent Bex
- Department of Neurosurgery, Regional Hospital Center Citadelle, Liege, Belgium
| | - Jean-Michel Remacle
- Department of Neurosurgery, Regional Hospital Center Citadelle, Liege, Belgium
| | - Vincent Bonhomme
- Department of Algology, Regional Hospital Center Citadelle, Liege, Belgium; University Department of Anesthesia and Intensive Care Medicine, Regional Hospital Center Citadelle, Liege, Belgium; Department of Anesthesia and Intensive Care Medicine, University Hospital Center Liege, Liege, Belgium; Anesthesia and Intensive Care Laboratory, GIGA-Consciousness Thematic Unit, GIGA-Research, Liege University, Liege, Belgium
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Bonhomme V, Staquet C, Montupil J, Defresne A, Kirsch M, Martial C, Vanhaudenhuyse A, Chatelle C, Larroque SK, Raimondo F, Demertzi A, Bodart O, Laureys S, Gosseries O. General Anesthesia: A Probe to Explore Consciousness. Front Syst Neurosci 2019; 13:36. [PMID: 31474839 PMCID: PMC6703193 DOI: 10.3389/fnsys.2019.00036] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 07/24/2019] [Indexed: 12/24/2022] Open
Abstract
General anesthesia reversibly alters consciousness, without shutting down the brain globally. Depending on the anesthetic agent and dose, it may produce different consciousness states including a complete absence of subjective experience (unconsciousness), a conscious experience without perception of the environment (disconnected consciousness, like during dreaming), or episodes of oriented consciousness with awareness of the environment (connected consciousness). Each consciousness state may potentially be followed by explicit or implicit memories after the procedure. In this respect, anesthesia can be considered as a proxy to explore consciousness. During the recent years, progress in the exploration of brain function has allowed a better understanding of the neural correlates of consciousness, and of their alterations during anesthesia. Several changes in functional and effective between-region brain connectivity, consciousness network topology, and spatio-temporal dynamics of between-region interactions have been evidenced during anesthesia. Despite a set of effects that are common to many anesthetic agents, it is still uneasy to draw a comprehensive picture of the precise cascades during general anesthesia. Several questions remain unsolved, including the exact identification of the neural substrate of consciousness and its components, the detection of specific consciousness states in unresponsive patients and their associated memory processes, the processing of sensory information during anesthesia, the pharmacodynamic interactions between anesthetic agents, the direction-dependent hysteresis phenomenon during the transitions between consciousness states, the mechanisms of cognitive alterations that follow an anesthetic procedure, the identification of an eventual unitary mechanism of anesthesia-induced alteration of consciousness, the relationship between network effects and the biochemical or sleep-wake cycle targets of anesthetic agents, as well as the vast between-studies variations in dose and administration mode, leading to difficulties in between-studies comparisons. In this narrative review, we draw the picture of the current state of knowledge in anesthesia-induced unconsciousness, from insights gathered on propofol, halogenated vapors, ketamine, dexmedetomidine, benzodiazepines and xenon. We also describe how anesthesia can help understanding consciousness, we develop the above-mentioned unresolved questions, and propose tracks for future research.
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Affiliation(s)
- Vincent Bonhomme
- Anesthesia and Intensive Care Laboratory, GIGA-Consciousness, GIGA Institute, University of Liege, Liege, Belgium.,University Department of Anesthesia and Intensive Care Medicine, Centre Hospitalier Régional de la Citadelle (CHR Citadelle), Liege, Belgium.,Department of Anesthesia and Intensive Care Medicine, Centre Hospitalier Universitaire de Liège (CHU Lièege), Liege, Belgium
| | - Cécile Staquet
- Anesthesia and Intensive Care Laboratory, GIGA-Consciousness, GIGA Institute, University of Liege, Liege, Belgium.,Department of Anesthesia and Intensive Care Medicine, Centre Hospitalier Universitaire de Liège (CHU Lièege), Liege, Belgium
| | - Javier Montupil
- Anesthesia and Intensive Care Laboratory, GIGA-Consciousness, GIGA Institute, University of Liege, Liege, Belgium.,University Department of Anesthesia and Intensive Care Medicine, Centre Hospitalier Régional de la Citadelle (CHR Citadelle), Liege, Belgium.,Department of Anesthesia and Intensive Care Medicine, Centre Hospitalier Universitaire de Liège (CHU Lièege), Liege, Belgium
| | - Aline Defresne
- Anesthesia and Intensive Care Laboratory, GIGA-Consciousness, GIGA Institute, University of Liege, Liege, Belgium.,University Department of Anesthesia and Intensive Care Medicine, Centre Hospitalier Régional de la Citadelle (CHR Citadelle), Liege, Belgium.,Department of Anesthesia and Intensive Care Medicine, Centre Hospitalier Universitaire de Liège (CHU Lièege), Liege, Belgium
| | - Murielle Kirsch
- Anesthesia and Intensive Care Laboratory, GIGA-Consciousness, GIGA Institute, University of Liege, Liege, Belgium.,Department of Anesthesia and Intensive Care Medicine, Centre Hospitalier Universitaire de Liège (CHU Lièege), Liege, Belgium
| | - Charlotte Martial
- Coma Science Group, GIGA-Consciousness, GIGA Institute, University of Liege, Liege, Belgium
| | - Audrey Vanhaudenhuyse
- Sensation & Perception Research Group, GIGA-Consciousness, Department of Algology, GIGA Institute, University of Liege, Centre Hospitalier Universitaire de Liège (CHU Lièege), Liege, Belgium
| | - Camille Chatelle
- Coma Science Group, GIGA-Consciousness, GIGA Institute, University of Liege, Liege, Belgium
| | - Stephen Karl Larroque
- Coma Science Group, GIGA-Consciousness, GIGA Institute, University of Liege, Liege, Belgium
| | - Federico Raimondo
- Coma Science Group, GIGA-Consciousness, GIGA Institute, University of Liege, Liege, Belgium
| | - Athena Demertzi
- Physiology of Cognition Research Lab, GIGA-Consciousness, GIGA Institute, University of Liege, Liege, Belgium
| | - Olivier Bodart
- Coma Science Group, GIGA-Consciousness, GIGA Institute, University of Liege, Liege, Belgium
| | - Steven Laureys
- Coma Science Group, GIGA-Consciousness, GIGA Institute, University of Liege, Liege, Belgium
| | - Olivia Gosseries
- Coma Science Group, GIGA-Consciousness, GIGA Institute, University of Liege, Liege, Belgium
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45
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Bonhomme V. Gupta and Gelb’s Essentials of Neuroanesthesia and Neurointensive Care. Anesth Analg 2019. [DOI: 10.1213/ane.0000000000004076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Bonhomme V. Gupta and Gelb’s Essentials of Neuroanesthesia and Neurointensive Care. Anesth Analg 2019. [DOI: 10.1213/00000539-900000000-96271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Wallace M, Jones G, Charles M, Forster E, Stillman E, Bonhomme V, Livarda A, Osborne CP, Rees M, Frenck G, Preece C. Re-analysis of archaeobotanical remains from pre- and early agricultural sites provides no evidence for a narrowing of the wild plant food spectrum during the origins of agriculture in southwest Asia. Veg Hist Archaeobot 2018; 28:449-463. [PMID: 31231152 PMCID: PMC6551342 DOI: 10.1007/s00334-018-0702-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 10/22/2018] [Indexed: 06/09/2023]
Abstract
Archaeobotanical evidence from southwest Asia is often interpreted as showing that the spectrum of wild plant foods narrowed during the origins of agriculture, but it has long been acknowledged that the recognition of wild plants as foods is problematic. Here, we systematically combine compositional and contextual evidence to recognise the wild plants for which there is strong evidence of their deliberate collection as food at pre-agricultural and early agricultural sites across southwest Asia. Through sample-by-sample analysis of archaeobotanical remains, a robust link is established between the archaeological evidence and its interpretation in terms of food use, which permits a re-evaluation of the evidence for the exploitation of a broad spectrum of wild plant foods at pre-agricultural sites, and the extent to which this changed during the development of early agriculture. Our results show that relatively few of the wild taxa found at pre- and early agricultural sites can be confidently recognised as contributing to the human diet, and we found no evidence for a narrowing of the plant food spectrum during the adoption of agriculture. This has implications for how we understand the processes leading to the domestication of crops, and points towards a mutualistic relationship between people and plants as a driving force during the development of agriculture.
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Affiliation(s)
- Michael Wallace
- Department of Archaeology, University of Sheffield, Minalloy House, 10-16 Regent Street, Sheffield, S1 3NJ UK
| | - Glynis Jones
- Department of Archaeology, University of Sheffield, Minalloy House, 10-16 Regent Street, Sheffield, S1 3NJ UK
| | - Michael Charles
- Department of Archaeology, University of Oxford, 36 Beaumont Street, Oxford, OX1 2PG UK
| | - Emily Forster
- Department of Archaeology, University of Oxford, 36 Beaumont Street, Oxford, OX1 2PG UK
| | - Eleanor Stillman
- School of Mathematics and Statistics, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield, S3 7RH UK
| | - Vincent Bonhomme
- School of Mathematics and Statistics, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield, S3 7RH UK
- Institut des Sciences de l’Evolution-Montpellier (ISEM-UMR 5554), Equipe Dynamique de la Biodiversité, Anthropo-écologie, Université de Montpellier, 34095 Montpellier Cedex 2, France
| | - Alexandra Livarda
- Department of Classics and Archaeology, University of Nottingham, University Park, Nottingham, NG7 2RD UK
| | - Colin P. Osborne
- Department of Animal and Plant Sciences, University of Sheffield, Alfred Denny Building, Western Bank, Sheffield, S10 2TN UK
| | - Mark Rees
- Department of Animal and Plant Sciences, University of Sheffield, Alfred Denny Building, Western Bank, Sheffield, S10 2TN UK
| | - Georg Frenck
- Department of Animal and Plant Sciences, University of Sheffield, Alfred Denny Building, Western Bank, Sheffield, S10 2TN UK
- Department of Ecology, University of Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
| | - Catherine Preece
- Department of Animal and Plant Sciences, University of Sheffield, Alfred Denny Building, Western Bank, Sheffield, S10 2TN UK
- CREAF, Campus de Bellaterra (UAB), Edifici C, 08193 Cerdanyola del Vallès, Spain
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Sanders RD, Banks MI, Darracq M, Moran R, Sleigh J, Gosseries O, Bonhomme V, Brichant JF, Rosanova M, Raz A, Tononi G, Massimini M, Laureys S, Boly M. Propofol-induced unresponsiveness is associated with impaired feedforward connectivity in cortical hierarchy. Br J Anaesth 2018; 121:1084-1096. [PMID: 30336853 DOI: 10.1016/j.bja.2018.07.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 07/02/2018] [Accepted: 07/11/2018] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Impaired consciousness has been associated with impaired cortical signal propagation after transcranial magnetic stimulation (TMS). We hypothesised that the reduced current propagation under propofol-induced unresponsiveness is associated with changes in both feedforward and feedback connectivity across the cortical hierarchy. METHODS Eight subjects underwent left occipital TMS coupled with high-density EEG recordings during wakefulness and propofol-induced unconsciousness. Spectral analysis was applied to responses recorded from sensors overlying six hierarchical cortical sources involved in visual processing. Dynamic causal modelling (DCM) of induced time-frequency responses and evoked response potentials were used to investigate propofol's effects on connectivity between regions. RESULTS Sensor space analysis demonstrated that propofol reduced both induced and evoked power after TMS in occipital, parietal, and frontal electrodes. Bayesian model selection supported a DCM with hierarchical feedforward and feedback connections. DCM of induced EEG responses revealed that the primary effect of propofol was impaired feedforward responses in cross-frequency theta/alpha-gamma coupling and within frequency theta coupling (F contrast, family-wise error corrected P<0.05). An exploratory analysis (thresholded at uncorrected P<0.001) also suggested that propofol impaired feedforward and feedback beta band coupling. Post hoc analyses showed impairments in all feedforward connections and one feedback connection from parietal to occipital cortex. DCM of the evoked response potential showed impaired feedforward connectivity between left-sided occipital and parietal cortex (T contrast P=0.004, Bonferroni corrected). CONCLUSIONS Propofol-induced loss of consciousness is associated with impaired hierarchical feedforward connectivity assessed by EEG after occipital TMS.
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Affiliation(s)
- R D Sanders
- Department of Anesthesiology, University of Wisconsin, Madison, WI, USA.
| | - M I Banks
- Department of Anesthesiology, University of Wisconsin, Madison, WI, USA
| | - M Darracq
- Department of Anesthesiology, University of Wisconsin, Madison, WI, USA
| | - R Moran
- Faculty of Engineering, University of Bristol, Bristol, UK
| | - J Sleigh
- Department of Anaesthesia, Waikato Hospital, Hamilton, New Zealand
| | - O Gosseries
- Coma Science Group, GIGA-consciousness, University of Liège, Liège, Belgium
| | - V Bonhomme
- Anesthesia and Intensive Care Laboratory, GIGA-Consciousness, University of Liège, Liège, Belgium; Department of Anestheisa and ICM, CHU Liège, Liège, Belgium; University Department of Anesthesia and ICM, CHR Citadelle, Liège, Belgium
| | - J F Brichant
- Department of Anestheisa and ICM, CHU Liège, Liège, Belgium
| | - M Rosanova
- Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy
| | - A Raz
- Department of Anesthesiology, University of Wisconsin, Madison, WI, USA; Rambam Healthcare Campus, Haifa, Israel
| | - G Tononi
- Department of Psychiatry, University of Wisconsin, Madison, WI, USA
| | - M Massimini
- Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy
| | - S Laureys
- Coma Science Group, GIGA-consciousness, University of Liège, Liège, Belgium; Department of Neurology, CHU Liège, Liège, Belgium
| | - M Boly
- Department of Psychiatry, University of Wisconsin, Madison, WI, USA; Department of Neurology, University of Wisconsin, Madison, WI, USA
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Defresne A, Harrison M, Clement F, Barvais L, Bonhomme V. Two different methods to assess sympathetic tone during general anesthesia lead to different findings. J Clin Monit Comput 2018; 33:463-469. [PMID: 29943169 DOI: 10.1007/s10877-018-0175-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 06/20/2018] [Indexed: 12/19/2022]
Abstract
Noxious stimulation influences the autonomic nervous system activity. Sympathetic tone monitoring is currently used to assess the adequacy of the balance between nociception and anti-nociception during general anesthesia. The Surgical Plethysmographic Index (SPI) and the EBMi software (Custos©) are commercial devices that use different algorithms to measure it. We aimed at determining whether those devices provide similar information during routine surgical procedures under general anesthesia. Data acquired during a previously published study in patients undergoing surgery under general anesthesia were retrospectively analyzed and passed through the EBMi software. The occurrence of EBMi alarms of increased sympathetic tone was compared to the occurrence of SPI values ≥ 60, a commonly recommended intraoperative SPI threshold. Trends in classical parameters of sympathetic tone during the 5 min preceding a SPI ≥ 60, namely blood pressure, heart rate, and plethysmographic pulse amplitude were assessed. SPI ≥ 60 episodes (n = 307) were more frequent than EBMi alerts (n = 240). Approximately 70% of EBMi alerts occurred during periods where the SPI was below 60. Among all episodes of SPI ≥ 60, absence of any EBMi alerts was much more frequent than the inverse. A majority, but not all SPI ≥ 60 episodes were consistently preceded by an increase in heart rate and/or a decrease in pulse amplitude. Blood pressure did not significantly change before SPI ≥ 60. Longer SPI ≥ 60 episodes were associated with lower anti-nociception anesthetic regimen. Different methods of sympathetic tone assessment during general anesthesia provide conflicting information. Prospective studies should be undertaken to clarify the clinical indications of both techniques.
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Affiliation(s)
- Aline Defresne
- GIGA - Consciousness, Anesthesia and Intensive Care Medicine Laboratory, University and CHU University Hospital of Liege, Liege, Belgium.,Department of Anaesthesia and Intensive Care Medicine, CHU University Hospital of Liege, Liege, Belgium.,University Department of Anaesthesia and Intensive Care Medicine, CHR Citadelle, Bd du 12eme de Ligne, 1, Liege, 4000, Belgium
| | - Michael Harrison
- Department of Surgery and Anaesthesia, University of Otago, Wellington, New Zealand
| | - François Clement
- Department of Anesthesiology, Erasme University Hospital, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Luc Barvais
- Department of Anesthesiology, Erasme University Hospital, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Vincent Bonhomme
- GIGA - Consciousness, Anesthesia and Intensive Care Medicine Laboratory, University and CHU University Hospital of Liege, Liege, Belgium. .,Department of Anaesthesia and Intensive Care Medicine, CHU University Hospital of Liege, Liege, Belgium. .,University Department of Anaesthesia and Intensive Care Medicine, CHR Citadelle, Bd du 12eme de Ligne, 1, Liege, 4000, Belgium.
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Affiliation(s)
- Florian Caillon
- Institute for Marine Ecosystem and Fisheries Science Center for Earth System Research and Sustainability (CEN) University of Hamburg Große Elbstraße 133 22767 Hamburg Germany
| | - Vincent Bonhomme
- UMR 5554 Institut des Sciences de l'Evolution, Équipe Dynamique de la Biodiversité, Anthropo‐Écologie CNRS IRD EPHE Université de Montpellier Place Eugène Bataillon 34095 Montpellier Cedex 05 France
| | - Christian Möllmann
- Institute for Marine Ecosystem and Fisheries Science Center for Earth System Research and Sustainability (CEN) University of Hamburg Große Elbstraße 133 22767 Hamburg Germany
| | - Romain Frelat
- Institute for Marine Ecosystem and Fisheries Science Center for Earth System Research and Sustainability (CEN) University of Hamburg Große Elbstraße 133 22767 Hamburg Germany
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