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Salvas JP, Leyba KA, Schepers LE, Paiyabhroma N, Goergen CJ, Sicard P. Neurovascular Hypoxia Trajectories Assessed by Photoacoustic Imaging in a Murine Model of Cardiac Arrest and Resuscitation. IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 2023; 70:1661-1670. [PMID: 37043326 DOI: 10.1109/tuffc.2023.3265800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Cardiac arrest is a common cause of death annually mainly due to postcardiac arrest syndrome that leads to multiple organ global hypoxia and dysfunction after resuscitation. The ability to quantify vasculature changes and tissue oxygenation is crucial to adapt patient treatment in order to minimize major outcomes after resuscitation. For the first time, we applied high-resolution ultrasound associated with photoacoustic imaging (PAI) to track neurovascular oxygenation and cardiac function trajectories in a murine model of cardiac arrest and resuscitation. We report the preservation of brain oxygenation is greater compared to that in peripheral tissues during the arrest. Furthermore, distinct patterns of cerebral oxygen decay may relate to the support of vital brain functions. In addition, we followed trajectories of cerebral perfusion and cardiac function longitudinally after induced cardiac arrest and resuscitation. Volumetric cerebral oxygen saturation (sO2) decreased 24 h postarrest, but these levels rebounded at one week. However, systolic and diastolic cardiac dysfunction persisted throughout and correlated with cerebral hypoxia. Pathophysiologic biomarker trends, identified via cerebral PAI in preclinical models, could provide new insights into understanding the pathophysiology of cardiac arrest and resuscitation.
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Tachino J, Nonomiya Y, Taniuchi S, Shintani A, Nakao S, Takegawa R, Hirose T, Sakai T, Ohnishi M, Shimazu T, Shiozaki T. Association between time-dependent changes in cerebrovascular autoregulation after cardiac arrest and outcomes: A prospective cohort study. J Cereb Blood Flow Metab 2023; 43:1942-1950. [PMID: 37377095 PMCID: PMC10676135 DOI: 10.1177/0271678x231185658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 05/23/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023]
Abstract
This prospective observational single-center cohort study aimed to determine an association between cerebrovascular autoregulation (CVAR) and outcomes in hypoxic-ischemic brain injury post-cardiac arrest (CA), and assessed 100 consecutive post-CA patients in Japan between June 2017 and May 2020 who experienced a return of spontaneous circulation. Continuous monitoring was performed for 96 h to determine CVAR presence. A moving Pearson correlation coefficient was calculated from the mean arterial pressure and cerebral regional oxygen saturation. The association between CVAR and outcomes was evaluated using the Cox proportional hazard model; non-CVAR time percent was the time-dependent, age-adjusted covariate. The non-linear effect of target temperature management (TTM) was assessed using a restricted cubic spline. Of the 100 participants, CVAR was detected using the cerebral performance category (CPC) in all patients with a good neurological outcome (CPC 1-2) and in 65 patients (88%) with a poor outcome (CPC 3-5). Survival probability decreased significantly with increasing non-CVAR time percent. The TTM versus the non-TTM group had a significantly lower probability of a poor neurological outcome at 6 months with a non-CVAR time of 18%-37% (p < 0.05). Longer non-CVAR time may be associated with significantly increased mortality in hypoxic-ischemic brain injury post-CA.
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Affiliation(s)
- Jotaro Tachino
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yuta Nonomiya
- Department of Medical Statistics, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Satsuki Taniuchi
- Department of Medical Statistics, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Ayumi Shintani
- Department of Medical Statistics, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Shunichiro Nakao
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Ryosuke Takegawa
- Laboratory for Critical Care Physiology, Feinstein Institutes for Medical Research, Northwell Health System, Manhasset, NY, USA
- Department of Emergency Medicine, North Shore University Hospital, Northwell Health System, Manhasset, NY, USA
| | - Tomoya Hirose
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Tomohiko Sakai
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Mitsuo Ohnishi
- Department of Acute Medicine and Critical Care Medical Center, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | | | - Tadahiko Shiozaki
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
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Li Z, Zhu Y, Qin S, Gao X, Kang Y, Li S, Chai J. Effects of permissive hypercapnia on intraoperative cerebral oxygenation and early postoperative cognitive function in older patients with non-acute fragile brain function undergoing laparoscopic colorectal surgery: protocol study. BMC Geriatr 2023; 23:581. [PMID: 37735369 PMCID: PMC10512528 DOI: 10.1186/s12877-023-04125-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 06/21/2023] [Indexed: 09/23/2023] Open
Abstract
BACKGROUND Perioperative brain protection in older patients has been the focus of research recently; meanwhile, exploring the relationship between regional cerebral oxygen saturation (rSO2) and brain function in the perioperative period has been an emerging and challenging area-the difficulties related to the real-time monitoring of rSO2 and the choice of feasible interventions. As an advanced instrument for intraoperative rSO2 monitoring, the clinical application of near-infrared spectrum (NIRS) cerebral oxygen monitoring has gradually increased in popularity and is being recognized for its beneficial clinical outcomes in patients undergoing cardiac and noncardiac surgery. In addition, although sufficient evidence to support this hypothesis is still lacking, the effect of permissive hypercapnia (PHC) on rSO2 has expanded from basic research to clinical exploration. Therefore, monitoring intraoperative rSO2 in older patients with NIRS technology and exploring possible interventions that may change rSO2 and even improve postoperative cognitive performance is significant and clinically valuable. METHODS This study is a single-center randomized controlled trial (RCT). 76 older patients are enrolled as subjects. Patients who meet the screening criteria will be randomly assigned 1:1 to the control and intervention groups. PHC-based mechanical ventilation will be regarded as an intervention. The primary outcome is the absolute change in the percent change in rSO2 from baseline to the completion of surgery in the intervention and control groups. Secondary outcomes mainly include observations of intraoperative cerebral oxygenation and metabolism, markers of brain injury, and assessments of patients' cognitive function using scale through postoperative follow-up. DISCUSSION The findings of this RCT will reveal the effect of PHC on intraoperative rSO2 in older patients with nonacute fragile brain function (NFBF) and the approximate trends over time, and differences in postoperative cognitive function outcomes. We anticipate that the trial results will inform clinical policy decision-makers in clinical practice, enhance the management of intraoperative cerebral oxygen monitoring in older patients with comorbid NFBF, and provide guidance for clinical brain protection and improved postoperative cognitive function outcomes. TRIAL REGISTRATION ChiCTR, ChiCTR2200062093, Registered 9/15/2022.
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Affiliation(s)
- Zhichao Li
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Youzhuang Zhu
- Department of Anesthesiology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shangyuan Qin
- Department of Anesthesiology, Liaoning Cancer Hospital & Institute, Shenyang, China
| | - Xin Gao
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yihan Kang
- Department of Anesthesiology, The First Hospital of China Medical University, Shenyang, China
| | - Si Li
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jun Chai
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, China.
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Sandroni C, Skrifvars MB, Taccone FS. Brain monitoring after cardiac arrest. Curr Opin Crit Care 2023; 29:68-74. [PMID: 36762679 PMCID: PMC9994800 DOI: 10.1097/mcc.0000000000001023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
PURPOSE OF REVIEW To describe the available neuromonitoring tools in patients who are comatose after resuscitation from cardiac arrest because of hypoxic-ischemic brain injury (HIBI). RECENT FINDINGS Electroencephalogram (EEG) is useful for detecting seizures and guiding antiepileptic treatment. Moreover, specific EEG patterns accurately identify patients with irreversible HIBI. Cerebral blood flow (CBF) decreases in HIBI, and a greater decrease with no CBF recovery indicates poor outcome. The CBF autoregulation curve is narrowed and right-shifted in some HIBI patients, most of whom have poor outcome. Parameters derived from near-infrared spectroscopy (NIRS), intracranial pressure (ICP) and transcranial Doppler (TCD), together with brain tissue oxygenation, are under investigation as tools to optimize CBF in patients with HIBI and altered autoregulation. Blood levels of brain biomarkers and their trend over time are used to assess the severity of HIBI in both the research and clinical setting, and to predict the outcome of postcardiac arrest coma. Neuron-specific enolase (NSE) is recommended as a prognostic tool for HIBI in the current postresuscitation guidelines, but other potentially more accurate biomarkers, such as neurofilament light chain (NfL) are under investigation. SUMMARY Neuromonitoring provides essential information to detect complications, individualize treatment and predict prognosis in patients with HIBI.
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Affiliation(s)
- Claudio Sandroni
- Department of Intensive Care, Emergency Medicine and Anaesthesiology, Fondazione Policlinico Universitario ‘Agostino Gemelli’- IRCCS
- Institute of Anaesthesiology and Intensive Care Medicine, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Markus Benedikt Skrifvars
- Department of Emergency Medicine and Services, University of Helsinki
- Helsinki University Hospital, Helsinki, Finland
| | - Fabio Silvio Taccone
- Department of Intensive Care, Hôpital Universitaire de Bruxelles (HUB), Université Libre de Bruxelles (ULB), Brussels, Belgium
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Mølstrøm S, Nielsen TH, Nordstrøm CH, Forsse A, Møller S, Venø S, Mamaev D, Tencer T, Theódórsdóttir Á, Krøigård T, Møller J, Hassager C, Kjærgaard J, Schmidt H, Toft P. A randomized, double-blind trial comparing the effect of two blood pressure targets on global brain metabolism after out-of-hospital cardiac arrest. Crit Care 2023; 27:73. [PMID: 36823636 PMCID: PMC9951410 DOI: 10.1186/s13054-023-04376-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 02/20/2023] [Indexed: 02/25/2023] Open
Abstract
PURPOSE This study aimed to assess the effect of different blood pressure levels on global cerebral metabolism in comatose patients resuscitated from out-of-hospital cardiac arrest (OHCA). METHODS In a double-blinded trial, we randomly assigned 60 comatose patients following OHCA to low (63 mmHg) or high (77 mmHg) mean arterial blood pressure (MAP). The trial was a sub-study in the Blood Pressure and Oxygenation Targets after Out-of-Hospital Cardiac Arrest-trial (BOX). Global cerebral metabolism utilizing jugular bulb microdialysis (JBM) and cerebral oxygenation (rSO2) was monitored continuously for 96 h. The lactate-to-pyruvate (LP) ratio is a marker of cellular redox status and increases during deficient oxygen delivery (ischemia, hypoxia) and mitochondrial dysfunction. The primary outcome was to compare time-averaged means of cerebral energy metabolites between MAP groups during post-resuscitation care. Secondary outcomes included metabolic patterns of cerebral ischemia, rSO2, plasma neuron-specific enolase level at 48 h and neurological outcome at hospital discharge (cerebral performance category). RESULTS We found a clear separation in MAP between the groups (15 mmHg, p < 0.001). Cerebral biochemical variables were not significantly different between MAP groups (LPR low MAP 19 (16-31) vs. high MAP 23 (16-33), p = 0.64). However, the LP ratio remained high (> 16) in both groups during the first 30 h. During the first 24 h, cerebral lactate > 2.5 mM, pyruvate levels > 110 µM, LP ratio > 30, and glycerol > 260 µM were highly predictive for poor neurological outcome and death with AUC 0.80. The median (IQR) rSO2 during the first 48 h was 69.5% (62.0-75.0%) in the low MAP group and 69.0% (61.3-75.5%) in the high MAP group, p = 0.16. CONCLUSIONS Among comatose patients resuscitated from OHCA, targeting a higher MAP 180 min after ROSC did not significantly improve cerebral energy metabolism within 96 h of post-resuscitation care. Patients with a poor clinical outcome exhibited significantly worse biochemical patterns, probably illustrating that insufficient tissue oxygenation and recirculation during the initial hours after ROSC were essential factors determining neurological outcome.
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Affiliation(s)
- Simon Mølstrøm
- Department of Anesthesiology and Intensive Care, Odense University Hospital, J. B. Winsløws Vej 4, 5000, Odense, Denmark.
| | - Troels Halfeld Nielsen
- grid.7143.10000 0004 0512 5013Department of Neurosurgery, Odense University Hospital, Odense, Denmark
| | - Carl-Henrik Nordstrøm
- grid.7143.10000 0004 0512 5013Department of Neurosurgery, Odense University Hospital, Odense, Denmark
| | - Axel Forsse
- grid.4973.90000 0004 0646 7373Department of Neurosurgery, Copenhagen University Hospital, Copenhagen, Denmark
| | - Søren Møller
- grid.7143.10000 0004 0512 5013OPEN, Open Patient Data Explorative Network, Odense University Hospital, Odense, Denmark ,grid.10825.3e0000 0001 0728 0170Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Søren Venø
- grid.7143.10000 0004 0512 5013Department of Anesthesiology and Intensive Care, Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense, Denmark
| | - Dmitry Mamaev
- grid.7143.10000 0004 0512 5013Department of Anesthesiology and Intensive Care, Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense, Denmark
| | - Tomas Tencer
- grid.7143.10000 0004 0512 5013Department of Anesthesiology and Intensive Care, Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense, Denmark
| | - Ásta Theódórsdóttir
- grid.7143.10000 0004 0512 5013Department of Neurology, Odense University Hospital, Odense, Denmark
| | - Thomas Krøigård
- grid.7143.10000 0004 0512 5013Department of Neurology, Odense University Hospital, Odense, Denmark
| | - Jacob Møller
- grid.4973.90000 0004 0646 7373The Heart Centre, Copenhagen University Hospital, Copenhagen, Denmark ,grid.7143.10000 0004 0512 5013Department of Cardiology, Odense University Hospital, Odense, Denmark ,grid.10825.3e0000 0001 0728 0170Department of Clinical Medicine, University of Southern, Odense, Denmark
| | - Christian Hassager
- grid.4973.90000 0004 0646 7373The Heart Centre, Copenhagen University Hospital, Copenhagen, Denmark
| | - Jesper Kjærgaard
- grid.4973.90000 0004 0646 7373The Heart Centre, Copenhagen University Hospital, Copenhagen, Denmark
| | - Henrik Schmidt
- grid.7143.10000 0004 0512 5013Department of Anesthesiology and Intensive Care, Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense, Denmark
| | - Palle Toft
- grid.7143.10000 0004 0512 5013Department of Anesthesiology and Intensive Care, Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense, Denmark
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Fan TH, Rosenthal ES. Physiological Monitoring in Patients with Acute Brain Injury: A Multimodal Approach. Crit Care Clin 2023; 39:221-233. [PMID: 36333033 DOI: 10.1016/j.ccc.2022.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Neurocritical care management of acute brain injury (ABI) is focused on identification, prevention, and management of secondary brain injury (SBI). Physiologic monitoring of the brain and other organ systems has a role to predict patient recovery or deterioration, guide individualized therapeutic interventions, and measure response to treatment, with the goal of improving patient outcomes. In this review, we detail how specific physiologic markers of brain injury and neuromonitoring tools are integrated and used in ABI patients to develop therapeutic approaches to prevent SBI.
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Affiliation(s)
- Tracey H Fan
- Department of Neurology, Division of Neurocritical Care, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02493, USA; Department of Neurology, Division of Neurocritical Care, Brigham and Women's Hospital, 55 Fruit Street, Boston, MA 02493, USA
| | - Eric S Rosenthal
- Department of Neurology, Division of Neurocritical Care, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02493, USA; Department of Neurology, Division of Clinical Neurophysiology, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02493, USA.
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Treating the body to prevent brain injury: lessons learned from the coronavirus disease 2019 pandemic. Curr Opin Crit Care 2022; 28:176-183. [PMID: 35058407 PMCID: PMC8891065 DOI: 10.1097/mcc.0000000000000917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW We aim to provide the current evidence on utility and application of neuromonitoring tools including electroencephalography (EEG), transcranial Doppler (TCD), pupillometry, optic nerve sheath diameter (ONSD), cerebral near-infrared spectroscopy (cNIRS), somatosensory-evoked potentials (SSEPs), and invasive intracranial monitoring in COVID-19. We also provide recent evidence on management strategy of COVID-19-associated neurological complications. RECENT FINDINGS Despite the common occurrence of neurological complications, we found limited use of standard neurologic monitoring in patients with COVID-19. No specific EEG pattern was identified in COVID-19. Frontal epileptic discharge was proposed to be a potential marker of COVID-19 encephalopathy. TCD, ONSD, and pupillometry can provide real-time data on intracranial pressure. Additionally, TCD may be useful for detection of acute large vessel occlusions, abnormal cerebral hemodynamics, cerebral emboli, and evolving cerebral edema at bedside. cNIRS was under-utilized in COVID-19 population and there are ongoing studies to investigate whether cerebral oxygenation could be a more useful parameter than peripheral oxygen saturation to guide clinical titration of permissive hypoxemia. Limited data exists on SSEPs and invasive intracranial monitoring. SUMMARY Early recognition using standardized neuromonitoring and timely intervention is important to reduce morbidity and mortality. The management strategy for neurological complications is similar to those without COVID-19.
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Skrifvars MB, Sekhon M, Åneman EA. Monitoring and modifying brain oxygenation in patients at risk of hypoxic ischaemic brain injury after cardiac arrest. Crit Care 2021; 25:312. [PMID: 34461973 PMCID: PMC8406909 DOI: 10.1186/s13054-021-03678-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
This article is one of ten reviews selected from the Annual Update in Intensive Care and Emergency Medicine 2021. Other selected articles can be found online at https://www.biomedcentral.com/collections/annualupdate2021 . Further information about the Annual Update in Intensive Care and Emergency Medicine is available from https://link.springer.com/bookseries/8901 .
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Affiliation(s)
- Markus Benedikt Skrifvars
- Department of Emergency Care and Services, Helsinki University Hospital and University of Helsinki, Helsinki, Finland.
| | - Mypinder Sekhon
- Division of Critical Care Medicine, Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Erik Anders Åneman
- Southwestern Clinical School, University of New South Wales, Sydney, NSW, Australia
- Faculty of Medicine and Health Sciences, Macquarie University, Sydney, NSW, Australia
- College of Health and Medicine, Australian National University, Canberra, NSW, Australia
- Department of Anaesthesiology and Intensive Care Medicine, Institute of Clinical Sciences at Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Intensive Care Unit, Liverpool Hospital, South Western Sydney Local Health District, Liverpool, NSW, Australia
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Mölström S, Nielsen TH, Nordström CH, Forsse A, Möller S, Venö S, Mamaev D, Tencer T, Schmidt H, Toft P. Bedside microdialysis for detection of early brain injury after out-of-hospital cardiac arrest. Sci Rep 2021; 11:15871. [PMID: 34354178 PMCID: PMC8342553 DOI: 10.1038/s41598-021-95405-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 07/26/2021] [Indexed: 11/30/2022] Open
Abstract
Bedside detection and early treatment of lasting cerebral ischemia may improve outcome after out-of-hospital cardiac arrest (OHCA). This feasibility study explores the possibilities to use microdialysis (MD) for continuous monitoring of cerebral energy metabolism by analyzing the draining cerebral venous blood. Eighteen comatose patients were continuously monitored with jugular bulb and radial artery (reference) MD following resuscitation. Median time from cardiac arrest to MD was 300 min (IQR 230–390) with median monitoring time 60 h (IQR 40–81). The lactate/pyruvate ratio in cerebral venous blood was increased during the first 20 h after OHCA, and significant differences in time-averaged mean MD metabolites between jugular venous and artery measurements, were documented (p < 0.02). In patients with unfavorable outcome (72%), cerebral venous lactate and pyruvate levels remained elevated during the study period. In conclusion, the study indicates that jugular bulb microdialysis (JBM) is feasible and safe. Biochemical signs of lasting ischemia and mitochondrial dysfunction are frequent and associated with unfavorable outcome. The technique may be used in comatose OHCA patients to monitor biochemical variables reflecting ongoing brain damage and support individualized treatment early after resuscitation.
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Affiliation(s)
- Simon Mölström
- Department of Anesthesiology and Intensive Care, Odense University Hospital, J. B. Winsløws Vej 4, 5000, Odense, Denmark.
| | | | - Carl H Nordström
- Department of Neurosurgery, Odense University Hospital, Odense, Denmark
| | - Axel Forsse
- Department of Neurosurgery, Odense University Hospital, Odense, Denmark
| | - Sören Möller
- OPEN, Open Patient Data Explorative Network, Odense University Hospital, Odense, Denmark.,Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Sören Venö
- Department of Anesthesiology and Intensive Care, Odense University Hospital, J. B. Winsløws Vej 4, 5000, Odense, Denmark
| | - Dmitry Mamaev
- Department of Anesthesiology and Intensive Care, Odense University Hospital, J. B. Winsløws Vej 4, 5000, Odense, Denmark
| | - Tomas Tencer
- Department of Anesthesiology and Intensive Care, Odense University Hospital, J. B. Winsløws Vej 4, 5000, Odense, Denmark
| | - Henrik Schmidt
- Department of Anesthesiology and Intensive Care, Odense University Hospital, J. B. Winsløws Vej 4, 5000, Odense, Denmark
| | - Palle Toft
- Department of Anesthesiology and Intensive Care, Odense University Hospital, J. B. Winsløws Vej 4, 5000, Odense, Denmark
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Kwon WY, Jung YS, Suh GJ, Kim T, Kwak H, Kim T, Kim JY, Lee MS, Kim KS, Shin J, Lee HJ, You KM. Regional cerebral oxygen saturation in cardiac arrest survivors undergoing targeted temperature management 36℃ versus 33℃: A randomized clinical trial. Resuscitation 2021; 167:362-371. [PMID: 34331985 DOI: 10.1016/j.resuscitation.2021.07.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 07/16/2021] [Accepted: 07/21/2021] [Indexed: 11/18/2022]
Abstract
AIM of study To investigate whether regional cerebral oxygen saturation (rSO2) differs in out-of-hospital cardiac arrest (OHCA) survivors undergoing targeted temperature management (TTM) 36℃ versus 33℃. METHODS A randomized clinical trial was conducted at intensive care units in two referral hospitals. Fifty-seven comatose OHCA survivors were randomized into either a 36℃ or 33℃ group. Patients were cooled and maintained at an oesophageal temperature of either 36℃ or 33℃ for 24 hours, rewarmed at a rate of 0.25℃/hour, and maintained at < 37.5℃ until 72 hours. During 72 hours of TTM, rSO2 was continuously monitored on the left forehead using near-infrared spectroscopy (INVOSTM 5100C). The rSO2 level at 72 hours was compared between the two groups. Next, serial rSO2 levels for 72 hours were compared using mixed effects regression. The association between rSO2 levels and 6-month neurological outcomes was also evaluated. RESULTS There were no significant differences in the rSO2 level at 72 hours between the 36℃ and 33℃ groups (p = 0.372). Furthermore, serial rSO2 levels for 72 hours of TTM were not different between the two groups (p = 0.733). However, low rSO2 levels, particularly at 24 hours of TTM, were significantly associated with poor 6-month neurological outcomes (odds ratio = 0.899, 95% confidence interval: 0.831 - 0.974). The area under the receiver operating characteristic curve of the rSO2 level at 24 hours for poor neurological outcomes was 0.800. CONCLUSIONS Regardless of target temperatures, low rSO2 levels during TTM were significantly associated with poor 6-month neurological outcomes in OHCA survivors.
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Affiliation(s)
- Woon Yong Kwon
- Department of Emergency Medicine, Seoul National University College of Medicine, Seoul 03080, Republic of Korea; Department of Emergency Medicine, Seoul National University Hospital, Seoul 03080, Republic of Korea
| | - Yoon Sun Jung
- Department of Critical Care Medicine, Seoul National University Hospital, Seoul 03080, Republic of Korea
| | - Gil Joon Suh
- Department of Emergency Medicine, Seoul National University College of Medicine, Seoul 03080, Republic of Korea; Department of Emergency Medicine, Seoul National University Hospital, Seoul 03080, Republic of Korea.
| | - Taekyun Kim
- Department of Emergency Medicine, Seoul National University Hospital, Seoul 03080, Republic of Korea
| | - Hyeongkyu Kwak
- Department of Emergency Medicine, Uijeongbu Eulji University Hospital/Eulji University School of Medicine, Uijeongbu-si, Gyeonggi-do, Republic of Korea
| | - Taekwon Kim
- Department of Emergency Medicine, Keimyung University Dongsan Hospital, Daegu, Republic of Korea
| | - Jeong Yeon Kim
- Department of Emergency Medicine, Seoul National University Hospital, Seoul 03080, Republic of Korea
| | - Min Sung Lee
- Department of Emergency Medicine, Seoul National University Hospital, Seoul 03080, Republic of Korea
| | - Kyung Su Kim
- Department of Emergency Medicine, Seoul National University Hospital, Seoul 03080, Republic of Korea
| | - Jonghwan Shin
- Department of Emergency Medicine, Seoul National University College of Medicine, Seoul 03080, Republic of Korea; Department of Emergency Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul 07061, Republic of Korea
| | - Hui Jai Lee
- Department of Emergency Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul 07061, Republic of Korea
| | - Kyung Min You
- Department of Emergency Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul 07061, Republic of Korea
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11
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You YH, In YN, Park JS, Yoo I, Kim SW, Lee J, Ryu S, Min JH, Jeong WJ, Cho YC, Oh SK, Ahn HJ, Kang CS, Lee BK, Lee DH, Lee DH, Yu GG. Relationships between serum levels of lactate dehydrogenase and neurological outcomes of patients who underwent targeted temperature management after out-of-hospital cardiac arrest. Medicine (Baltimore) 2021; 100:e26260. [PMID: 34128855 PMCID: PMC8213304 DOI: 10.1097/md.0000000000026260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 05/20/2021] [Indexed: 01/04/2023] Open
Abstract
This study aimed to evaluate times for measuring serum lactate dehydrogenase levels (SLLs) to predict neurological prognosis among out-of-hospital cardiac arrest (OHCA) survivors.This retrospective study examined patients who experienced OHCA treated with targeted temperature management (TTM). The SLLs were evaluated at the return of spontaneous circulation (ROSC) and at 24, 48, and 72 hours later. Neurological outcomes after 3 months were evaluated for relationships with the SLL measurement times.A total of 95 comatose patients with OHCA were treated using TTM. Seventy three patients were considered eligible, including 31 patients (42%) who experienced good neurological outcomes. There were significant differences between the good and poor outcome groups at most time points (P < .001), except for ROSC (P = .06). The ROSC measurement had a lower area under the receiver operating characteristic curve (AUC: 0.631, 95% confidence interval [CI]: 0.502-0.761) than at 48 hours (AUC: 0.830, 95% CI: 0.736-0.924), at 24 hours (AUC: 0.786, 95% CI: 0.681-0.892), and at 72 hours (AUC: 0.821, 95% CI: 0.724-0.919).A higher SLL seemingly predicted poor neurological outcomes, with good prognostic values at 48 hours and 72 hours. Prospective studies should be conducted to confirm these results.
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Affiliation(s)
- Yeon Ho You
- Department of Emergency Medicine, Chungnam National University Hospital
| | - Yong Nam In
- Department of Emergency Medicine, College of Medicine, Chungnam National University, Jung-gu, Daejeon
- Department of Emergency Medicine, Chungnam National University Sejong Hospital, Sejong
| | - Jung Soo Park
- Department of Emergency Medicine, Chungnam National University Hospital
- Department of Emergency Medicine, College of Medicine, Chungnam National University, Jung-gu, Daejeon
| | - Insool Yoo
- Department of Emergency Medicine, Chungnam National University Hospital
- Department of Emergency Medicine, College of Medicine, Chungnam National University, Jung-gu, Daejeon
| | - Seung Whan Kim
- Department of Emergency Medicine, Chungnam National University Hospital
- Department of Emergency Medicine, College of Medicine, Chungnam National University, Jung-gu, Daejeon
| | - Jinwoong Lee
- Department of Emergency Medicine, Chungnam National University Hospital
| | - Seung Ryu
- Department of Emergency Medicine, Chungnam National University Hospital
| | - Jin Hong Min
- Department of Emergency Medicine, College of Medicine, Chungnam National University, Jung-gu, Daejeon
- Department of Emergency Medicine, Chungnam National University Sejong Hospital, Sejong
| | - Won Joon Jeong
- Department of Emergency Medicine, Chungnam National University Hospital
| | - Yong Chul Cho
- Department of Emergency Medicine, Chungnam National University Hospital
| | - Se Kwang Oh
- Department of Emergency Medicine, College of Medicine, Chungnam National University, Jung-gu, Daejeon
- Department of Emergency Medicine, Chungnam National University Sejong Hospital, Sejong
| | - Hong Joon Ahn
- Department of Emergency Medicine, Chungnam National University Hospital
- Department of Emergency Medicine, College of Medicine, Chungnam National University, Jung-gu, Daejeon
| | - Chang Shin Kang
- Department of Emergency Medicine, Chungnam National University Hospital
| | - Byung Kook Lee
- Department of Emergency Medicine, Chonnam National University School of Medicine
- Department of Emergency Medicine, Chonnam National University Hospital, Dong-gu, Gwangju
| | - Dong Hun Lee
- Department of Emergency Medicine, Chonnam National University Hospital, Dong-gu, Gwangju
| | - Dong Hoon Lee
- Department of Emergency Medicine, College of Medicine, Chung-Ang University, Dongjak-gu, Seoul
| | - Gyeong Gyu Yu
- Department of Emergency Medical Service, Seojeong University, Eunhyeon-myeon, Yangju-si, Gyeonggi-do, Republic of Korea
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12
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Nolan JP, Sandroni C, Böttiger BW, Cariou A, Cronberg T, Friberg H, Genbrugge C, Haywood K, Lilja G, Moulaert VRM, Nikolaou N, Olasveengen TM, Skrifvars MB, Taccone F, Soar J. Postreanimationsbehandlung. Notf Rett Med 2021. [DOI: 10.1007/s10049-021-00892-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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13
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Badenes R, Bogossian EG, Chisbert V, Robba C, Oddo M, Taccone FS, Matta BF. The role of non-invasive brain oximetry in adult critically ill patients without primary brain injury. Minerva Anestesiol 2021; 87:1226-1238. [PMID: 33938677 DOI: 10.23736/s0375-9393.21.15333-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A primary objective in intensive care and perioperative settings is to promote an adequate supply and delivery of oxygen to tissues and organs, particularly to the brain. Cerebral near infrared spectroscopy (NIRS) is a non-invasive, continuous monitoring technique, that can be used to assess cerebral oxygenation. Using NIRS to monitor cerebral oximetry is not new, and has been in widespread use in neonates and cardiac surgery for decades. In addition, it has become common to see NIRS being used in adult and pediatric cardiac surgery, acute neurological diseases, neurosurgical procedures, vascular surgery, severe trauma and other acute medical diseases. Furthermore, recent evidence suggests a role for NIRS in the perioperative settings; detecting and preventing episodes of cerebral desaturation aiming to reduce the development of post-operative delirium. NIRS is not without its limitations; these include the risk of extra-cranial contamination, spatial limitations and skin blood flow/volume changes, as well being a measure of localized blood oxygenation underneath the sensor. However, NIRS is a non-invasive technique and can, therefore, be used in those patients without indications or justification for invasive brain monitoring; non-neurosurgical procedures such as liver transplantation, major orthopedic surgery and critically illness where the brain is at risk. The aim of this manuscript was to discuss the physical principles of NIRS and to report the current evidence regarding its use in critically ill patients without primary non-anoxic brain injury.
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Affiliation(s)
- Rafael Badenes
- Department of Anesthesiology and Surgical-Trauma Intensive Care, Hospital Clinic Universitari de Valencia, University of Valencia, Valencia, Spain - .,Department of Surgery, School of Medicine, University of Valencia, Valencia, Spain - .,INCLIVA Health Research Institute, Valencia, Spain -
| | - Elisa G Bogossian
- Department of Intensive Care Medicine, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Vicente Chisbert
- INCLIVA Health Research Institute, Valencia, Spain.,Escuela de Doctorado, Universidad Católica de Valencia, Valencia, Spain
| | - Chiara Robba
- Anaesthesia and Intensive Care, IRCSS S. Martino Hospital, Genoa, Italy
| | - Mauro Oddo
- Department of Intensive Care Medicine, Faculty of Biology and Medicine, Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne University Hospital, Lausanne, Switzerland
| | - Fabio S Taccone
- Department of Intensive Care Medicine, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Basil F Matta
- Trauma and NeuroCritical Care Unit, Cambridge University Hospital, Cambridge, UK
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14
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Nolan JP, Sandroni C, Böttiger BW, Cariou A, Cronberg T, Friberg H, Genbrugge C, Haywood K, Lilja G, Moulaert VRM, Nikolaou N, Olasveengen TM, Skrifvars MB, Taccone F, Soar J. European Resuscitation Council and European Society of Intensive Care Medicine guidelines 2021: post-resuscitation care. Intensive Care Med 2021; 47:369-421. [PMID: 33765189 PMCID: PMC7993077 DOI: 10.1007/s00134-021-06368-4] [Citation(s) in RCA: 417] [Impact Index Per Article: 139.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 02/08/2021] [Indexed: 12/13/2022]
Abstract
The European Resuscitation Council (ERC) and the European Society of Intensive Care Medicine (ESICM) have collaborated to produce these post-resuscitation care guidelines for adults, which are based on the 2020 International Consensus on Cardiopulmonary Resuscitation Science with Treatment Recommendations. The topics covered include the post-cardiac arrest syndrome, diagnosis of cause of cardiac arrest, control of oxygenation and ventilation, coronary reperfusion, haemodynamic monitoring and management, control of seizures, temperature control, general intensive care management, prognostication, long-term outcome, rehabilitation and organ donation.
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Affiliation(s)
- Jerry P. Nolan
- University of Warwick, Warwick Medical School, Coventry, CV4 7AL UK
- Royal United Hospital, Bath, BA1 3NG UK
| | - Claudio Sandroni
- Department of Intensive Care, Emergency Medicine and Anaesthesiology, Fondazione Policlinico Universitario A. Gemelli-IRCCS, Rome, Italy
- Institute of Anaesthesiology and Intensive Care Medicine, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Bernd W. Böttiger
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital of Cologne, Kerpener Straße 62, 50937 Cologne, Germany
| | - Alain Cariou
- Cochin University Hospital (APHP) and University of Paris (Medical School), Paris, France
| | - Tobias Cronberg
- Department of Clinical Sciences, Neurology, Lund University, Skane University Hospital, Lund, Sweden
| | - Hans Friberg
- Department of Clinical Sciences, Anaesthesia and Intensive Care Medicine, Lund University, Skane University Hospital, Lund, Sweden
| | - Cornelia Genbrugge
- Acute Medicine Research Pole, Institute of Experimental and Clinical Research (IREC), Université Catholique de Louvain, Brussels, Belgium
- Emergency Department, University Hospitals Saint-Luc, Brussels, Belgium
| | - Kirstie Haywood
- Warwick Research in Nursing, Division of Health Sciences, Warwick Medical School, University of Warwick, Room A108, Coventry, CV4 7AL UK
| | - Gisela Lilja
- Department of Clinical Sciences Lund, Neurology, Lund University, Skane University Hospital, Lund, Sweden
| | - Véronique R. M. Moulaert
- Department of Rehabilitation Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Nikolaos Nikolaou
- Cardiology Department, Konstantopouleio General Hospital, Athens, Greece
| | - Theresa Mariero Olasveengen
- Department of Anesthesiology, Oslo University Hospital and Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Markus B. Skrifvars
- Department of Emergency Care and Services, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Fabio Taccone
- Department of Intensive Care, Hôpital Erasme, Université Libre de Bruxelles, Route de Lennik, 808, 1070 Brussels, Belgium
| | - Jasmeet Soar
- Southmead Hospital, North Bristol NHS Trust, Bristol, BS10 5NB UK
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15
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Nolan JP, Sandroni C, Böttiger BW, Cariou A, Cronberg T, Friberg H, Genbrugge C, Haywood K, Lilja G, Moulaert VRM, Nikolaou N, Mariero Olasveengen T, Skrifvars MB, Taccone F, Soar J. European Resuscitation Council and European Society of Intensive Care Medicine Guidelines 2021: Post-resuscitation care. Resuscitation 2021; 161:220-269. [PMID: 33773827 DOI: 10.1016/j.resuscitation.2021.02.012] [Citation(s) in RCA: 338] [Impact Index Per Article: 112.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The European Resuscitation Council (ERC) and the European Society of Intensive Care Medicine (ESICM) have collaborated to produce these post-resuscitation care guidelines for adults, which are based on the 2020 International Consensus on Cardiopulmonary Resuscitation Science with Treatment Recommendations. The topics covered include the post-cardiac arrest syndrome, diagnosis of cause of cardiac arrest, control of oxygenation and ventilation, coronary reperfusion, haemodynamic monitoring and management, control of seizures, temperature control, general intensive care management, prognostication, long-term outcome, rehabilitation, and organ donation.
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Affiliation(s)
- Jerry P Nolan
- University of Warwick, Warwick Medical School, Coventry CV4 7AL, UK; Royal United Hospital, Bath, BA1 3NG, UK.
| | - Claudio Sandroni
- Department of Intensive Care, Emergency Medicine and Anaesthesiology, Fondazione Policlinico Universitario A. Gemelli-IRCCS, Rome, Italy; Institute of Anaesthesiology and Intensive Care Medicine, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Bernd W Böttiger
- University Hospital of Cologne, Kerpener Straße 62, D-50937 Cologne, Germany
| | - Alain Cariou
- Cochin University Hospital (APHP) and University of Paris (Medical School), Paris, France
| | - Tobias Cronberg
- Department of Clinical Sciences, Neurology, Lund University, Skane University Hospital, Lund, Sweden
| | - Hans Friberg
- Department of Clinical Sciences, Anaesthesia and Intensive Care Medicine, Lund University, Skane University Hospital, Lund, Sweden
| | - Cornelia Genbrugge
- Acute Medicine Research Pole, Institute of Experimental and Clinical Research (IREC) Université Catholique de Louvain, Brussels, Belgium; Emergency Department, University Hospitals Saint-Luc, Brussels, Belgium
| | - Kirstie Haywood
- Warwick Research in Nursing, Room A108, Division of Health Sciences, Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
| | - Gisela Lilja
- Lund University, Skane University Hospital, Department of Clinical Sciences Lund, Neurology, Lund, Sweden
| | - Véronique R M Moulaert
- University of Groningen, University Medical Center Groningen, Department of Rehabilitation Medicine, Groningen, The Netherlands
| | - Nikolaos Nikolaou
- Cardiology Department, Konstantopouleio General Hospital, Athens, Greece
| | - Theresa Mariero Olasveengen
- Department of Anesthesiology, Oslo University Hospital and Institute of Clinical Medicine, University of Oslo, Norway
| | - Markus B Skrifvars
- Department of Emergency Care and Services, University of Helsinki and Helsinki University Hospital, Finland
| | - Fabio Taccone
- Department of Intensive Care, Hôpital Erasme, Université Libre de Bruxelles, Route de Lennik, 808, 1070 Brussels, Belgium
| | - Jasmeet Soar
- Southmead Hospital, North Bristol NHS Trust, Bristol BS10 5NB, UK
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16
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Humaloja J, Skrifvars MB, Raj R, Wilkman E, Pekkarinen PT, Bendel S, Reinikainen M, Litonius E. The Association Between Arterial Oxygen Level and Outcome in Neurocritically Ill Patients is not Affected by Blood Pressure. Neurocrit Care 2021; 34:413-422. [PMID: 33403587 PMCID: PMC8128839 DOI: 10.1007/s12028-020-01178-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 12/04/2020] [Indexed: 11/27/2022]
Abstract
Background In neurocritically ill patients, one early mechanism behind secondary brain injury is low systemic blood pressure resulting in inadequate cerebral perfusion and consequent hypoxia. Intuitively, higher partial pressures of arterial oxygen (PaO2) could be protective in case of inadequate cerebral circulation related to hemodynamic instability. Study purpose We examined whether the association between PaO2 and mortality is different in patients with low compared to normal and high mean arterial pressure (MAP) in patients after various types of brain injury. Methods We screened the Finnish Intensive Care Consortium database for mechanically ventilated adult (≥ 18) brain injury patients treated in several tertiary intensive care units (ICUs) between 2003 and 2013. Admission diagnoses included traumatic brain injury, cardiac arrest, subarachnoid and intracranial hemorrhage, and acute ischemic stroke. The primary exposures of interest were PaO2 (recorded in connection with the lowest measured PaO2/fraction of inspired oxygen ratio) and the lowest MAP, recorded during the first 24 h in the ICU. PaO2 was grouped as follows: hypoxemia (< 8.2 kPa, the lowest 10th percentile), normoxemia (8.2–18.3 kPa), and hyperoxemia (> 18.3 kPa, the highest 10th percentile), and MAP was divided into equally sized tertiles (< 60, 60–68, and > 68 mmHg). The primary outcome was 1-year mortality. We tested the association between hyperoxemia, MAP, and mortality with a multivariable logistic regression model, including the PaO2, MAP, and interaction of PaO2*MAP, adjusting for age, admission diagnosis, premorbid physical performance, vasoactive use, intracranial pressure monitoring use, and disease severity. The relationship between predicted 1-year mortality and PaO2 was visualized with locally weighted scatterplot smoothing curves (Loess) for different MAP levels. Results From a total of 8290 patients, 3912 (47%) were dead at 1 year. PaO2 was not an independent predictor of mortality: the odds ratio (OR) for hyperoxemia was 1.16 (95% CI 0.85–1.59) and for hypoxemia 1.24 (95% CI 0.96–1.61) compared to normoxemia. Higher MAP predicted lower mortality: OR for MAP 60–68 mmHg was 0.73 (95% CI 0.64–0.84) and for MAP > 68 mmHg 0.80 (95% CI 0.69–0.92) compared to MAP < 60 mmHg. The interaction term PaO2*MAP was nonsignificant. In Loess visualization, the relationship between PaO2 and predicted mortality appeared similar in all MAP tertiles. Conclusions During the first 24 h of ICU treatment in mechanically ventilated brain injured patients, the association between PaO2 and mortality was not different in patients with low compared to normal MAP. Supplementary Information The online version of this article (10.1007/s12028-020-01178-w) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jaana Humaloja
- Department of Emergency Care and Services, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Markus B Skrifvars
- Department of Emergency Care and Services, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
| | - Rahul Raj
- Department of Neurosurgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Erika Wilkman
- Division of Intensive Care Medicine, Department of Anesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Pirkka T Pekkarinen
- Division of Intensive Care Medicine, Department of Anesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Stepani Bendel
- Department of Anesthesiology and Intensive Care, Kuopio University Hospital & University of Eastern Finland, Kuopio, Finland
| | - Matti Reinikainen
- Department of Anesthesiology and Intensive Care, Kuopio University Hospital & University of Eastern Finland, Kuopio, Finland
| | - Erik Litonius
- Division of Anesthesiology, Department of Anesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
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17
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Sanfilippo F, Murabito P, Messina A, Dezio V, Busalacchi D, Ristagno G, Cecconi M, Astuto M. Cerebral regional oxygen saturation during cardiopulmonary resuscitation and return of spontaneous circulation: A systematic review and meta-analysis. Resuscitation 2020; 159:19-27. [PMID: 33333181 DOI: 10.1016/j.resuscitation.2020.12.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 11/21/2020] [Accepted: 12/01/2020] [Indexed: 12/29/2022]
Abstract
AIM Predicting the return of spontaneous circulation (ROSC) during cardiopulmonary resuscitation in victims of cardiac arrest (CA) remains challenging. Cerebral regional oxygen saturation (rSO2) measured during resuscitation is feasible, and higher initial and overall values seem associated with ROSC. However, these observations were limited to the analysis of few small single-centre studies. There is a growing number of studies evaluating the role of cerebral rSO2 in the prediction of ROSC. METHODS We conducted an updated meta-analysis aimed at investigating the association of initial and overall values of cerebral rSO2 with ROSC after CA. We performed subgroups analyses according to the location of CA and conducted a secondary analysis according to the country where the study was conducted (resuscitation practice varies greatly for out-of-hospital CA). RESULTS We included 17 studies. Higher initial rSO2 values (11 studies, n = 2870, 16.6% achieved ROSC) were associated with ROSC: Mean Difference (MD) -11.54 [95%Confidence Interval (CI)-20.96, -2.12]; p = 0.02 (I2 = 97%). The secondary analysis confirmed this finding when pooling together European and USA studies, but did not for Japanese studies (p = 0.06). One multi-centre Japanese study was an outlier with large influence on 95%CI. Higher overall rSO2 values during resuscitation (9 studies, n = 894, 33.7% achieving ROSC) were associated with ROSC: MD-10.38; [-13.73, -7.03]; p < 0.00001 (I2 = 77%). All studies were conducted in Europe/USA. CONCLUSIONS This updated meta-analysis confirmed the association between higher initial and overall values of cerebral rSO2 and ROSC after CA. However, we found geographical differences, since this association was not present when Japanese studies were analysed separately.
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Affiliation(s)
- Filippo Sanfilippo
- Department of Anaesthesia and Intensive Care, A.O.U. "Policlinico-San Marco", Catania, Italy.
| | - Paolo Murabito
- Department of Anaesthesia and Intensive Care, A.O.U. "Policlinico-San Marco", Catania, Italy; Department of General Surgery and Medical-Surgical Specialties, Section of Anesthesia and Intensive Care, University of Catania, Catania, Italy; School of Anaesthesia and Intensive Care, University Hospital "G. Rodolico", University of Catania, Catania, Italy
| | - Antonio Messina
- Humanitas Clinical and Research Center - IRCCS, Milano, Italy; Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, MI, Italy
| | - Veronica Dezio
- School of Anaesthesia and Intensive Care, University Hospital "G. Rodolico", University of Catania, Catania, Italy
| | - Diana Busalacchi
- School of Anaesthesia and Intensive Care, University Hospital "G. Rodolico", University of Catania, Catania, Italy
| | - Giuseppe Ristagno
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy; Department of Anesthesiology, Intensive Care and Emergency, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Maurizio Cecconi
- Humanitas Clinical and Research Center - IRCCS, Milano, Italy; Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, MI, Italy
| | - Marinella Astuto
- Department of Anaesthesia and Intensive Care, A.O.U. "Policlinico-San Marco", Catania, Italy; Department of General Surgery and Medical-Surgical Specialties, Section of Anesthesia and Intensive Care, University of Catania, Catania, Italy; School of Anaesthesia and Intensive Care, University Hospital "G. Rodolico", University of Catania, Catania, Italy
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18
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Takegawa R, Hayashida K, Rolston DM, Li T, Miyara SJ, Ohnishi M, Shiozaki T, Becker LB. Near-Infrared Spectroscopy Assessments of Regional Cerebral Oxygen Saturation for the Prediction of Clinical Outcomes in Patients With Cardiac Arrest: A Review of Clinical Impact, Evolution, and Future Directions. Front Med (Lausanne) 2020; 7:587930. [PMID: 33251235 PMCID: PMC7673454 DOI: 10.3389/fmed.2020.587930] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 10/02/2020] [Indexed: 12/24/2022] Open
Abstract
Despite three decades of advancements in cardiopulmonary resuscitation (CPR) methods and post-resuscitation care, neurological prognosis remains poor among survivors of out-of-hospital cardiac arrest, and there are no reliable methods for predicting neurological outcomes in patients with cardiac arrest (CA). Adopting more effective methods of neurological monitoring may aid in improving neurological outcomes and optimizing therapeutic interventions for each patient. In the present review, we summarize the development, evolution, and potential application of near-infrared spectroscopy (NIRS) in adults with CA, highlighting the clinical relevance of NIRS brain monitoring as a predictive tool in both pre-hospital and in-hospital settings. Several clinical studies have reported an association between various NIRS oximetry measurements and CA outcomes, suggesting that NIRS monitoring can be integrated into standardized CPR protocols, which may improve outcomes among patients with CA. However, no studies have established acceptable regional cerebral oxygen saturation cut-off values for differentiating patient groups based on return of spontaneous circulation status and neurological outcomes. Furthermore, the point at which resuscitation efforts can be considered futile remains to be determined. Further large-scale randomized controlled trials are required to evaluate the impact of NIRS monitoring on survival and neurological recovery following CA.
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Affiliation(s)
- Ryosuke Takegawa
- Laboratory for Critical Care Physiology, Feinstein Institutes for Medical Research, Northwell Health System, Manhasset, NY, United States.,Department of Emergency Medicine, North Shore University Hospital, Northwell Health System, Manhasset, NY, United States.,Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kei Hayashida
- Laboratory for Critical Care Physiology, Feinstein Institutes for Medical Research, Northwell Health System, Manhasset, NY, United States.,Department of Emergency Medicine, North Shore University Hospital, Northwell Health System, Manhasset, NY, United States
| | - Daniel M Rolston
- Department of Emergency Medicine, North Shore University Hospital, Northwell Health System, Manhasset, NY, United States.,Department of Emergency Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States.,Department of Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
| | - Timmy Li
- Department of Emergency Medicine, North Shore University Hospital, Northwell Health System, Manhasset, NY, United States.,Department of Emergency Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
| | - Santiago J Miyara
- Laboratory for Critical Care Physiology, Feinstein Institutes for Medical Research, Northwell Health System, Manhasset, NY, United States.,Department of Emergency Medicine, North Shore University Hospital, Northwell Health System, Manhasset, NY, United States.,Department of Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States.,Elmezzi Graduate School of Molecular Medicine, Manhasset, NY, United States
| | - Mitsuo Ohnishi
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, Osaka, Japan.,Department of Acute Medicine and Critical Care Medical Center, Osaka National Hospital, National Hospital Organization, Osaka, Japan
| | - Tadahiko Shiozaki
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Lance B Becker
- Laboratory for Critical Care Physiology, Feinstein Institutes for Medical Research, Northwell Health System, Manhasset, NY, United States.,Department of Emergency Medicine, North Shore University Hospital, Northwell Health System, Manhasset, NY, United States.,Department of Emergency Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
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19
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Hunt MF, Clark KT, Whitman G, Choi CW, Geocadin RG, Cho SM. The Use of Cerebral NIRS Monitoring to Identify Acute Brain Injury in Patients With VA-ECMO. J Intensive Care Med 2020; 36:1403-1409. [PMID: 33054510 DOI: 10.1177/0885066620966962] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Acute brain injury (ABI) increases morbidity and mortality in patients with veno-arterial extracorporeal membrane oxygenation (VA-ECMO). Optimal neurologic monitoring methods have not been well-explicated. We studied the use of Near-infrared Spectroscopy (NIRS) to monitor cerebral regional oxygenation tissue saturation (rSO2) and its relation to ABI in VA-ECMO. In this prospective, observational cohort study of 39 consecutive patients, we analyzed the ability of rSO2 values from continuous bedside NIRS monitoring to predict ABI during VA-ECMO support. ABI occurred in 24 (61.5%) patients. Those with ABI had a lower pre-ECMO Glasgow Coma Scale, more blood product transfusions of pRBCs and FFP, and higher APACHEII score. Baseline rSO2 values were not significantly different between cohorts (54.25 vs 58.50, p = 0.260), while the minimum rSO2 value was lower for patients who experienced an ABI than those who did not (39.75 vs 44.50, p = 0.039). In patients with ABI, 21 (87.5%) had a drop in rSO2 of 25% from baseline, compared to only 7 (46.7%) patients without ABI (p = 0.017). By ROC analysis, we found that desaturations with >25% drop from the baseline rSO2 on VA-ECMO exhibited 86% sensitivity and 55% specificity to predict ABI, with an area under the curve of 0.68. Patients with ABI were more likely to have withdrawal of life sustaining therapy (17 vs 5, p = 0.049), while neurologic outcome and mortality were not statistically different between patients with or without ABI. Our results support that cerebral NIRS is a useful, real-time bedside neuromonitoring tool to detect ABI in VA-ECMO patients. A >25% drop from the baseline was sensitive in predicting ABI occurrence. Further research is needed to assess how to implement this knowledge to utilize NIRS in developing appropriate intervention strategy in VA-ECMO patients.
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Affiliation(s)
- Megan F Hunt
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | | | - Glenn Whitman
- Cardiovascular Surgical Intensive Care, Heart and Vascular Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Chun Woo Choi
- Cardiovascular Surgical Intensive Care, Heart and Vascular Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Romergryko G Geocadin
- Departments of Neurology and Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA.,Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Sung-Min Cho
- Departments of Neurology and Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA.,Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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20
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Prognostic Value of Tissue Oxygen Monitoring and Regional Cerebral Oxygen Saturation Monitoring and Their Correlation in Neurological Patients with Sepsis: A Preliminary, Prospective, Observational Study. J Neurosurg Anesthesiol 2020; 32:77-81. [PMID: 30475291 DOI: 10.1097/ana.0000000000000563] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND There is paucity of literature on the prognostic value of tissue oxygen saturation (StO2) and regional cerebral oxygen saturation (rSO2) in neurological patients with sepsis. In this preliminary study, we investigated the prognostic value of StO2 and rSO2 in a group of neurological patients and correlated StO2 and rSO2 with hemodynamic and metabolic parameters. MATERIALS AND METHODS This preliminary, prospective observational study was conducted in 45 adult neurological patients admitted to intensive care unit. Once a diagnosis of sepsis or septic shock was established, parameters of oxygenation (StO2, rSO2, central venous oxygen saturation [ScvO2]), serum lactate, illness severity scores (Acute Physiology and Chronic Health Evaluation score, Sequential Organ Failure Assessment score, Glasgow Coma Scale) were recorded at 0, 6, 12, 24, 36, and 48 hours, and once daily thereafter. Outcomes were in-hospital mortality attributable to sepsis and the Glasgow outcome score at hospital discharge. RESULTS There was a moderately positive correlation between StO2 and rSO2 at baseline (r=0.599; P=0.001). StO2, illness severity scores and serum lactate, but not rSO2, were significantly different between survivors (n=29) and nonsurvivors (n=16) at baseline and during the first 48 hours. An rSO2 of 62.5% had a sensitivity of 83% and specificity of 67% to differentiate survivors and nonsurvivors of septic shock at 48 hours. StO2 had a higher correlation with ScvO2 and serum lactate than rSO2. CONCLUSIONS StO2 prognosticates survival and favorable/unfavorable outcomes in neurological patients with sepsis. The role of rSO2 in predicting survival in milder form of sepsis is doubtful.
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21
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Eertmans W, Salcido D, Genbrugge C. Regional cerebral saturation in post-cardiac arrest patients is doomed… or is it just a near death experience? Resuscitation 2020; 154:117-118. [PMID: 32673733 DOI: 10.1016/j.resuscitation.2020.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 07/06/2020] [Indexed: 11/25/2022]
Affiliation(s)
- Ward Eertmans
- Departement of Cardiology, Ziekenhuis Oost-Limburg, Genk, Belgium
| | - David Salcido
- School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Cornelia Genbrugge
- Emergency Department, University Hospitals Saint-Luc, Brussels, Belgium; Acute Medicine Research Pole, Institute of Experimental and Clinical Research (IREC), Université Catholique de Louvain, Belgium.
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22
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The association between post-cardiac arrest cerebral oxygenation and survival with favorable neurological outcomes: A multicenter study. Resuscitation 2020; 154:85-92. [PMID: 32544414 DOI: 10.1016/j.resuscitation.2020.06.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 06/02/2020] [Accepted: 06/03/2020] [Indexed: 11/21/2022]
Abstract
OBJECTIVE Cerebral oximetry is a non-invasive system that uses near infrared spectroscopy to measure regional cerebral oxygenation (rSO2) in the frontal lobe of the brain. Post-cardiac arrest rSO2 may be associated with survival and neurological outcomes in out-of-hospital cardiac arrest patients; however, no studies have examined relationships between rSO2 and neurological outcomes following in-hospital cardiac arrest (IHCA). We tested the hypothesis that rSO2 following IHCA is associated with survival and favorable neurological outcomes. DESIGN Prospective study from nine acute care hospital in the United States and United Kingdom. PATIENTS Convenience sample of IHCA patients admitted to the intensive care unit with post-cardiac arrest syndrome. INTERVENTIONS Cerebral oximetry monitoring (Equanox 7600, Nonin Medical, MN, USA) during the first 48 h after IHCA. MEASUREMENTS AND MAIN RESULTS Subject's rSO2 was calculated as the mean of collected data at different time intervals: hourly between 1-6 h, 6-12 h, 12-18 h, 18-24 h and 24-48 h. Demographic data pertaining to possible confounding variables for rSO2 and primary outcome were collected. The primary outcome was survival with favorable neurological outcomes (cerebral performance scale [CPC] 1-2) vs severe neurological injury or death (CPC 3-5) at hospital discharge. Univariate and multivariate statistical analyses were performed to correlate cerebral oximetry values and other variables with the primary outcome. Among 87 studied patients, 26 (29.9%) achieved CPC 1-2. A significant difference in mean rSO2 was observed during hours 1-2 after IHCA in CPC 1-2 vs CPC 3-5 (73.08 vs. 66.59, p = 0.031) but not at other time intervals. There were no differences in age, Charlson comorbidity index, APACHE II scores, CPR duration, mean arterial pressure, PaO2, PaCO2, and hemoglobin levels between two groups. CONCLUSIONS There may be a significant physiological difference in rSO2 in the first two hours after ROSC in IHCA patients who achieve favorable neurological outcomes, however, this difference may not be clinically significant.
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23
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Othman MH, Bhattacharya M, Møller K, Kjeldsen S, Grand J, Kjaergaard J, Dutta A, Kondziella D. Resting-State NIRS-EEG in Unresponsive Patients with Acute Brain Injury: A Proof-of-Concept Study. Neurocrit Care 2020; 34:31-44. [PMID: 32333214 DOI: 10.1007/s12028-020-00971-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND Neurovascular-based imaging techniques such as functional MRI (fMRI) may reveal signs of consciousness in clinically unresponsive patients but are often subject to logistical challenges in the intensive care unit (ICU). Near-infrared spectroscopy (NIRS) is another neurovascular imaging technique but low cost, can be performed serially at the bedside, and may be combined with electroencephalography (EEG), which are important advantages compared to fMRI. Combined NIRS-EEG, however, has never been evaluated for the assessment of neurovascular coupling and consciousness in acute brain injury. METHODS We explored resting-state oscillations in eight-channel NIRS oxyhemoglobin and eight-channel EEG band-power signals to assess neurovascular coupling, the prerequisite for neurovascular-based imaging detection of consciousness, in patients with acute brain injury in the ICU (n = 9). Conscious neurological patients from step-down units and wards served as controls (n = 14). Unsupervised adaptive mixture-independent component analysis (AMICA) was used to correlate NIRS-EEG data with levels of consciousness and clinical outcome. RESULTS Neurovascular coupling between NIRS oxyhemoglobin (0.07-0.13 Hz) and EEG band-power (1-12 Hz) signals at frontal areas was sensitive and prognostic to changing consciousness levels. AMICA revealed a mixture of five models from EEG data, with the relative probabilities of these models reflecting levels of consciousness over multiple days, although the accuracy was less than 85%. However, when combined with two channels of bilateral frontal neurovascular coupling, weighted k-nearest neighbor classification of AMICA probabilities distinguished unresponsive patients from conscious controls with > 90% accuracy (positive predictive value 93%, false discovery rate 7%) and, additionally, identified patients who subsequently failed to recover consciousness with > 99% accuracy. DISCUSSION We suggest that NIRS-EEG for monitoring of acute brain injury in the ICU is worthy of further exploration. Normalization of neurovascular coupling may herald recovery of consciousness after acute brain injury.
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Affiliation(s)
- Marwan H Othman
- Department of Neurology, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Mahasweta Bhattacharya
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY, USA
| | - Kirsten Møller
- Department of Neuroanesthesiology, Copenhagen University Hospital, Copenhagen, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Søren Kjeldsen
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Johannes Grand
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Jesper Kjaergaard
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Anirban Dutta
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY, USA
| | - Daniel Kondziella
- Department of Neurology, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100, Copenhagen, Denmark. .,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
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24
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Cerebral Oxygenation as a Monitoring Parameter for Mortality During Venoarterial Extracorporeal Membrane Oxygenation. ASAIO J 2020; 65:342-348. [PMID: 29768283 DOI: 10.1097/mat.0000000000000827] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
There are no recommended guidelines for monitoring parameters during venoarterial extracorporeal membrane oxygenation (V-A ECMO). We evaluated whether regional cerebral oxygen saturation (rScO2) could be a monitoring parameter for mortality during V-A ECMO. We retrospectively searched our database for adult patients who underwent V-A ECMO between April 2015 and October 2016 and identified 21 patients with rScO2 data. Their baseline and clinical characteristics during the first 7 days (vital signs, arterial blood gas results, ECMO variables, rScO2, Swan-Ganz catheter parameters, transthoracic echocardiography parameters, and outcomes) were collected and evaluated for associations with 28 day mortality. The survivor group (12 patients, 57.1%) had higher rScO2 values and lower lactate levels, compared with the nonsurvivor group (nine cases, 42.9%) during the first 7 days. The areas under the receiver operating characteristics curves were 0.87 for right rScO2 (p < 0.001) and 0.86 for left rScO2 (p < 0.001). The optimal cutoff values for right and left rScO2 were 58% (sensitivity: 78.7%, specificity: 83.3%) and 57% (sensitivity: 80.0%, specificity: 70.8%), respectively. Kaplan-Meier analysis revealed that the risks of 28 day mortality were higher among patients with a right rScO2 of <58% and a left rScO2 of <57%, compared with patients with a right rScO2 of ≥58% and a left rScO2 of ≥57% (both, p < 0.001). We suggest that rScO2 may be used as a monitoring parameter for 28 day mortality among patients undergoing V-A ECMO.
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25
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Hosseini M, Wilson RH, Crouzet C, Amirhekmat A, Wei KS, Akbari Y. Resuscitating the Globally Ischemic Brain: TTM and Beyond. Neurotherapeutics 2020; 17:539-562. [PMID: 32367476 PMCID: PMC7283450 DOI: 10.1007/s13311-020-00856-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Cardiac arrest (CA) afflicts ~ 550,000 people each year in the USA. A small fraction of CA sufferers survive with a majority of these survivors emerging in a comatose state. Many CA survivors suffer devastating global brain injury with some remaining indefinitely in a comatose state. The pathogenesis of global brain injury secondary to CA is complex. Mechanisms of CA-induced brain injury include ischemia, hypoxia, cytotoxicity, inflammation, and ultimately, irreversible neuronal damage. Due to this complexity, it is critical for clinicians to have access as early as possible to quantitative metrics for diagnosing injury severity, accurately predicting outcome, and informing patient care. Current recommendations involve using multiple modalities including clinical exam, electrophysiology, brain imaging, and molecular biomarkers. This multi-faceted approach is designed to improve prognostication to avoid "self-fulfilling" prophecy and early withdrawal of life-sustaining treatments. Incorporation of emerging dynamic monitoring tools such as diffuse optical technologies may provide improved diagnosis and early prognostication to better inform treatment. Currently, targeted temperature management (TTM) is the leading treatment, with the number of patients needed to treat being ~ 6 in order to improve outcome for one patient. Future avenues of treatment, which may potentially be combined with TTM, include pharmacotherapy, perfusion/oxygenation targets, and pre/postconditioning. In this review, we provide a bench to bedside approach to delineate the pathophysiology, prognostication methods, current targeted therapies, and future directions of research surrounding hypoxic-ischemic brain injury (HIBI) secondary to CA.
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Affiliation(s)
- Melika Hosseini
- Department of Neurology, School of Medicine, University of California, Irvine, USA
| | - Robert H Wilson
- Department of Neurology, School of Medicine, University of California, Irvine, USA
- Beckman Laser Institute, University of California, Irvine, USA
| | - Christian Crouzet
- Department of Neurology, School of Medicine, University of California, Irvine, USA
- Beckman Laser Institute, University of California, Irvine, USA
| | - Arya Amirhekmat
- Department of Neurology, School of Medicine, University of California, Irvine, USA
| | - Kevin S Wei
- Department of Neurology, School of Medicine, University of California, Irvine, USA
| | - Yama Akbari
- Department of Neurology, School of Medicine, University of California, Irvine, USA.
- Beckman Laser Institute, University of California, Irvine, USA.
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26
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Joo WJ, Ide K, Nishiyama K, Seki T, Tanaka H, Tsuchiya J, Ito N, Yoshida K, Kawakami K. Prediction of the neurological outcome using regional cerebral oxygen saturation in patients with extracorporeal cardiopulmonary resuscitation after out-of-hospital cardiac arrest: a multicenter retrospective cohort study. Acute Med Surg 2020; 7:e491. [PMID: 33391763 PMCID: PMC7774292 DOI: 10.1002/ams2.491] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 01/19/2020] [Accepted: 01/31/2020] [Indexed: 11/13/2022] Open
Abstract
Aim To investigate the association between regional cerebral oxygen saturation (rSO2) and neurological outcomes in extracorporeal cardiopulmonary resuscitation (ECPR) patients after out‐of‐hospital cardiac arrest (OHCA). Methods We used data from the Japan‐Prediction of Neurological Outcomes in Patients Post‐Cardiac Arrest Registry. This registry included consecutive comatose patients after OHCA who were transferred to 15 hospitals in Japan from 2011 to 2013. Our primary end‐point was a good neurological outcome (cerebral performance categories 1 or 2) at 90 days after OHCA. Results Among the enrolled patients, 121 (6.3%) received ECPR. Eleven (9.1%) had a good neurological outcome. Receiver operating characteristic curve analysis revealed the optimal cut‐off value as >16%. Good neurological outcomes were observed in 19.6% (9/46) and 2.7% (2/74) of patients with rSO2 >16% and rSO2 ≤16%, respectively. Conclusion The neurological outcome of ECPR patients differed according to their rSO2 values. When considering ECPR, the rSO2 value could be important in addition to other criteria. Further studies that focus on ECPR patients and serial rSO2 values are needed.
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Affiliation(s)
- Woo Jin Joo
- Department of Pharmacoepidemiology Graduate School of Medicine and Public Health Kyoto University Kyoto Japan
| | - Kazuki Ide
- Department of Pharmacoepidemiology Graduate School of Medicine and Public Health Kyoto University Kyoto Japan.,Center for the Promotion of Interdisciplinary Education and Research Kyoto University Kyoto Japan
| | - Kei Nishiyama
- Department of Emergency and Critical Care Medicine National Hospital Organization Kyoto Medical Center Kyoto Japan
| | - Tomotsugu Seki
- Department of Pharmacoepidemiology Graduate School of Medicine and Public Health Kyoto University Kyoto Japan
| | - Hiroyuki Tanaka
- Department of Emergency and Critical Care Medicine National Hospital Organization Kyoto Medical Center Kyoto Japan
| | - Jumpei Tsuchiya
- Department of Emergency and Critical Care Medicine National Hospital Organization Kyoto Medical Center Kyoto Japan
| | - Noritoshi Ito
- Department of Cardiovascular Medicine Kawasaki Saiwai Hospital Kawasaki Japan
| | - Kosuke Yoshida
- Department of Primary Care and Emergency Medicine Graduate School of Medicine Kyoto University Kyoto Japan
| | - Koji Kawakami
- Department of Pharmacoepidemiology Graduate School of Medicine and Public Health Kyoto University Kyoto Japan
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27
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Wong C, Churilov L, Cowie D, Tan CO, Hu R, Tremewen D, Pearce B, Pillai P, Karalapillai D, Bellomo R, Weinberg L. Randomised controlled trial to investigate the relationship between mild hypercapnia and cerebral oxygen saturation in patients undergoing major surgery. BMJ Open 2020; 10:e029159. [PMID: 32066598 PMCID: PMC7045198 DOI: 10.1136/bmjopen-2019-029159] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
OBJECTIVES The effects of hypercapnia on regional cerebral oxygen saturation (rSO2) during surgery are unclear. We conducted a randomised controlled trial to investigate the relationship between mild hypercapnia and rSO2. We hypothesised that, compared with targeted normocapnia (TN), targeted mild hypercapnia (TMH) during major surgery would increase rSO2. DESIGN A prospective, randomised, controlled trial in adult participants undergoing elective major surgery. SETTING A single tertiary centre in Heidelberg, Victoria, Australia. PARTICIPANTS 40 participants were randomised to either a TMH or TN group (20 to each). INTERVENTIONS TMH (partial pressure of carbon dioxide in arterial blood, PaCO2, 45-55 mm Hg) or TN (PaCO2 35-40 mm Hg) was delivered via controlled ventilation throughout surgery. PRIMARY AND SECONDARY OUTCOME MEASURES The primary endpoint was the absolute difference between the two groups in percentage change in rSO2 from baseline to completion of surgery. Secondary endpoints included intraoperative pH, bicarbonate concentration, base excess, serum potassium concentration, incidence of postoperative delirium and length of stay (LOS) in hospital. RESULTS The absolute difference between the two groups in percentage change in rSO2 from the baseline to the completion of surgery was 19.0% higher in both hemispheres with TMH (p<0.001). On both sides, the percentage change in rSO2 was greater in the TMH group than the TN group throughout the duration of surgery. The difference between the groups became more noticeable over time. Furthermore, postoperative delirium was higher in the TN group (risk difference 0.3, 95% CI 0.1 to 0.5, p=0.02). LOS was similar between groups (5 days vs 5 days; p=0.99). CONCLUSION TMH was associated with a stable increase in rSO2 from the baseline, while TN was associated with a decrease in rSO2 in both hemispheres in patients undergoing major surgery. This resulted in a clear separation of percentage change in rSO2 from the baseline between TMH and TN over time. Our findings provide the rationale for larger studies on TMH during surgery. TRIAL REGISTRATION NUMBER The Australian New Zealand Clinical Trials Registry (ACTRN12616000320459).
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Affiliation(s)
- Clarence Wong
- Department of Anaesthesia, Austin Health, Heidelberg, Victoria, Australia
| | - Leonid Churilov
- The Department of Medicine, Austin Health, The Univesity of Melbourne, Heidelberg, Victoria, Australia
| | - Dean Cowie
- Department of Anaesthesia, Austin Health, Heidelberg, Victoria, Australia
| | - Chong Oon Tan
- Department of Anaesthesia, Austin Health, Heidelberg, Victoria, Australia
| | - Raymond Hu
- Department of Anaesthesia, Austin Health, Heidelberg, Victoria, Australia
| | - David Tremewen
- Department of Anaesthesia, Austin Health, Heidelberg, Victoria, Australia
| | - Brett Pearce
- Department of Anaesthesia, Austin Health, Heidelberg, Victoria, Australia
| | - Param Pillai
- Department of Anaesthesia, Austin Health, Heidelberg, Victoria, Australia
| | | | - Rinaldo Bellomo
- Department of Intensive Care, Austin Hospital, Heidelberg, Victoria, Australia
| | - Laurence Weinberg
- Department of Anaesthesia, Austin Health, Heidelberg, Victoria, Australia
- Department of Surgery, Austin Health, The University of Melbourne, Heidelberg, Victoria, Australia
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28
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Tsou PY, Garcia AV, Yiu A, Vaidya DM, Bembea MM. Association of Cerebral Oximetry with Outcomes after Extracorporeal Membrane Oxygenation. Neurocrit Care 2020; 33:429-437. [PMID: 31925732 DOI: 10.1007/s12028-019-00892-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
BACKGROUND Extracorporeal membrane oxygenation (ECMO) is associated with neurologic morbidity and mortality. We investigated whether cerebral regional oxygen saturation (rSO2) is associated with neurologic outcomes and survival in children on ECMO. METHODS This was a retrospective observational study of children aged 1 day to 20 years who underwent ECMO with routine cerebral rSO2 monitoring in the pediatric intensive care unit at a single academic center between February 2008 and September 2014. We collected all serial rSO2 values recorded in the electronic medical record during the ECMO course. Favorable outcome was defined as survival with Pediatric Cerebral Performance Category (PCPC) ≤ 2 at hospital discharge or no decline from baseline PCPC. RESULTS We reviewed data from 153 patients who underwent 156 ECMO runs. The median age was 12.5 days (interquartile range [IQR], 2 days-15 months). Ninety-nine (64%) patients survived to hospital discharge, and 82/99 (83%) survivors had favorable neurologic outcome by discharge PCPC. Neuroimaging studies were obtained in 135 (87%) patients, 59 (44%) of which showed abnormal findings. Ninety-two (59%) patients had any rSO2 ≤ 50%, 60 (38%) had any rSO2 decline > 20% from baseline, and 26 (17%) had any rSO2 decline > 20% from the reading 1 h prior. Any rSO2 ≤ 50% and any rSO2 decline > 20% from baseline were each associated with unfavorable outcome at hospital discharge (multivariable-adjusted odds ratio [OR], 2.82 [95% CI 1.10-7.25] and 4.52 [95% CI 1.76-11.58], respectively). rSO2 decline > 20% from the reading 1 h prior was not significantly associated with the outcomes. CONCLUSION Among children in one institution who underwent routine clinical rSO2 monitoring during ECMO, rSO2 decline was associated with unfavorable short-term neurologic outcome and death after adjusting for potential confounders. The effectiveness of initiating early preventative measures in these high-risk patients needs further study.
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Affiliation(s)
- Po-Yang Tsou
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, 1800 Orleans Street, Suite 6321, 21287, Baltimore, MD, USA
| | - Alejandro V Garcia
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Alvin Yiu
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, 1800 Orleans Street, Suite 6321, 21287, Baltimore, MD, USA
| | - Dhananjay M Vaidya
- Department of General Internal Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Melania M Bembea
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, 1800 Orleans Street, Suite 6321, 21287, Baltimore, MD, USA.
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29
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Sakurai A, Ihara S, Tagami R, Yamaguchi J, Sugita A, Kuwana T, Sawada N, Hori S, Taniguch T, Kinoshita K. Parameters Influencing Brain Oxygen Measurement by Regional Oxygen Saturation in Postcardiac Arrest Patients with Targeted Temperature Management. Ther Hypothermia Temp Manag 2019; 10:71-75. [PMID: 31825272 PMCID: PMC7044773 DOI: 10.1089/ther.2019.0032] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
In several studies, regional cerebral oxygen saturation (rSO2) has been measured in patients with postcardiac arrest syndrome (PCAS) to analyze the brain's metabolic status. However, the significance of rSO2 in PCAS patients remains unclear. In the present study, we investigated the relationship between rSO2 and physiological parameters. Comatose survivors of out-of-hospital PCAS with targeted temperature management (TTM) at 34°C for 24 hours were included. All patients were monitored for their rSO2 and additional parameters (arterial oxygen saturation [SaO2], hemoglobin [Hb], mean arterial pressure [MAP], arterial carbon dioxide pressure [PaCO2], and body temperature]) measured at the start of monitoring and 24 and 48 hours after return of spontaneous circulation (ROSC). Patients were divided into favorable and unfavorable groups, and the correlation between rSO2 and these physiological parameters was evaluated by multiple regression analysis. Forty-nine patients were included in the study, with 15 in the favorable group and 34 in the unfavorable group. There was no significant difference in the rSO2 value between the two groups at any time point. The multiple regression analysis of the favorable group revealed a moderate correlation between rSO2 and SaO2, Hb, and PaCO2 only at 24 hours (coefficients: 0.482, 0.422, and 0.531, respectively), whereas that of the unfavorable group revealed moderate correlations between rSO2 and Hb values at all time points, PaCO2 at 24 hours and MAP at 24 and 48 hours. rSO2 was moderately correlated to MAP in unfavorable patients. To optimize brain oxygen metabolic balance for PCAS patients with TTM measuring rSO2, we suggest total evaluation of each parameters of SaO2, Hb, MAP, and PaCO2.
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Affiliation(s)
- Atsushi Sakurai
- Division of Emergency and Critical Care Medicine, Department of Acute Medicine, Nihon University School of Medicine, Tokyo, Japan
- Address correspondence to: Atsushi Sakurai, MD, PhD, Division of Emergency and Critical Care Medicine, Department of Acute Medicine, Nihon University School of Medicine, 30-1 Oyaguchikamimachi Itabashi-ku, Tokyo 173-8610, Japan
| | - Shingo Ihara
- Division of Emergency and Critical Care Medicine, Department of Acute Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Rumi Tagami
- Division of Emergency and Critical Care Medicine, Department of Acute Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Junko Yamaguchi
- Division of Emergency and Critical Care Medicine, Department of Acute Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Atsunori Sugita
- Division of Emergency and Critical Care Medicine, Department of Acute Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Tsukasa Kuwana
- Division of Emergency and Critical Care Medicine, Department of Acute Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Nami Sawada
- Division of Emergency and Critical Care Medicine, Department of Acute Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Satoshi Hori
- Division of Emergency and Critical Care Medicine, Department of Acute Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Tetsuya Taniguch
- Department of Mathematics, Nihon University School of Medicine, Tokyo, Japan
| | - Kosaku Kinoshita
- Division of Emergency and Critical Care Medicine, Department of Acute Medicine, Nihon University School of Medicine, Tokyo, Japan
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30
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Ihara S, Sakurai A, Kinoshita K, Yamaguchi J, Sugita A. Amplitude-Integrated Electroencephalography and Brain Oxygenation for Postcardiac Arrest Patients with Targeted Temperature Management. Ther Hypothermia Temp Manag 2019; 9:209-215. [PMID: 31381485 PMCID: PMC6744943 DOI: 10.1089/ther.2018.0051] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Brain injury is the most common cause of death postcardiac arrest. Amplitude-integrated electroencephalography (aEEG) is suggested to be useful in the prognostication in cases of postcardiac arrest brain injury. However, combined monitoring with aEEG and regional oxygen saturation (rSO2) for postcardiac arrest syndrome (PCAS) patients to improve accuracy has not been reported. The purpose of this prospective observational study is to assess the usefulness of aEEG and rSO2 for PCAS patients with targeted temperature management (TTM) to predict neurological outcome and possibly identify the pathophysiology of postcardiac arrest brain injury. PCAS patients with TTM at 34°C were monitored by aEEG and rSO2 immediately after admission to the intensive care unit and evaluated at the start of monitoring, and 24 and 48 hours after return of spontaneous circulation (ROSC). Patients were divided into two groups according to electroencephalography (EEG) pattern: a continuous EEG (C) pattern group and a noncontinuous EEG (NC) pattern group. Patients with C pattern had a significantly more favorable neurologic outcome compared with patients with an NC pattern at each point in time. No significant difference in rSO2 values was observed between the C pattern and the NC pattern at any time point. Variation coefficient at rSO2 in the NC group was significantly greater than that in the C group from the start of the monitoring to 24 hours. aEEG is useful in predicting outcome for PCAS patients whereas rSO2 is not.
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Affiliation(s)
- Shingo Ihara
- Division of Emergency and Critical Care Medicine, Department of Acute Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Atsushi Sakurai
- Division of Emergency and Critical Care Medicine, Department of Acute Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Kosaku Kinoshita
- Division of Emergency and Critical Care Medicine, Department of Acute Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Junko Yamaguchi
- Division of Emergency and Critical Care Medicine, Department of Acute Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Atsunori Sugita
- Division of Emergency and Critical Care Medicine, Department of Acute Medicine, Nihon University School of Medicine, Tokyo, Japan
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Drennan IR, Gilgan J, Goncharenko K, Lin S. Use of Near-Infrared Spectroscopy by Paramedics During Out-of-Hospital Cardiac Arrest: A Feasibility Study. CJC Open 2019; 1:256-260. [PMID: 32159117 PMCID: PMC7063656 DOI: 10.1016/j.cjco.2019.07.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 07/02/2019] [Indexed: 01/03/2023] Open
Abstract
Near-infrared spectroscopy (NIRS) provides continuous real-time measurement of regional cerebral oxygen saturation (rSO2) during resuscitation. We aimed to evaluate the feasibility of paramedics using NIRS during out-of-hospital cardiac arrest (OHCA) resuscitation. Paramedics were trained to record rSO2 and mark events during resuscitation. Feasibility was defined as > 70% of cases with rSO2 data and event markers. The monitor was applied on 23 patients with OHCA. Of these, 19 (83%) had rSO2 data (median duration of 17.9 minutes; interquartile range, 9.7-28) and 17 (74%) had event markers (median 3 events per case; interquartile range, 1-4). It is feasible for paramedics to apply NIRS during OHCA resuscitation.
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Affiliation(s)
- Ian R Drennan
- Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada.,Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Joshua Gilgan
- Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada.,University of Dublin, Trinity College, Department of Medicine, Dublin, Ireland
| | - Karina Goncharenko
- Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada
| | - Steve Lin
- Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada.,Division of Emergency Medicine, Department of Medicine, University of Toronto, Toronto, Ontario, Canada.,Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
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The Burden of Brain Hypoxia and Optimal Mean Arterial Pressure in Patients With Hypoxic Ischemic Brain Injury After Cardiac Arrest*. Crit Care Med 2019; 47:960-969. [DOI: 10.1097/ccm.0000000000003745] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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33
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Jakkula P, Hästbacka J, Reinikainen M, Pettilä V, Loisa P, Tiainen M, Wilkman E, Bendel S, Birkelund T, Pulkkinen A, Bäcklund M, Heino S, Karlsson S, Kopponen H, Skrifvars MB. Near-infrared spectroscopy after out-of-hospital cardiac arrest. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2019; 23:171. [PMID: 31088512 PMCID: PMC6518726 DOI: 10.1186/s13054-019-2428-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 04/09/2019] [Indexed: 11/24/2022]
Abstract
Background Cerebral hypoperfusion may aggravate neurological damage after cardiac arrest. Near-infrared spectroscopy (NIRS) provides information on cerebral oxygenation but its relevance during post-resuscitation care is undefined. We investigated whether cerebral oxygen saturation (rSO2) measured with NIRS correlates with the serum concentration of neuron-specific enolase (NSE), a marker of neurological injury, and with clinical outcome in out-of-hospital cardiac arrest (OHCA) patients. Methods We performed a post hoc analysis of a randomised clinical trial (COMACARE, NCT02698917) comparing two different levels of carbon dioxide, oxygen and arterial pressure after resuscitation from OHCA with ventricular fibrillation as the initial rhythm. We measured rSO2 in 118 OHCA patients with NIRS during the first 36 h of intensive care. We determined the NSE concentrations from serum samples at 48 h after cardiac arrest and assessed neurological outcome with the Cerebral Performance Category (CPC) scale at 6 months. We evaluated the association between rSO2 and serum NSE concentrations and the association between rSO2 and good (CPC 1–2) and poor (CPC 3–5) neurological outcome. Results The median (inter-quartile range (IQR)) NSE concentration at 48 h was 17.5 (13.4–25.0) μg/l in patients with good neurological outcome and 35.2 (22.6–95.8) μg/l in those with poor outcome, p < 0.001. We found no significant correlation between median rSO2 and NSE at 48 h, rs = − 0.08, p = 0.392. The median (IQR) rSO2 during the first 36 h of intensive care was 70.0% (63.5–77.0%) in patients with good outcome and 71.8% (63.3–74.0%) in patients with poor outcome, p = 0.943. There was no significant association between rSO2 over time and neurological outcome. In a binary logistic regression model, rSO2 was not a statistically significant predictor of good neurological outcome (odds ratio 0.99, 95% confidence interval 0.94–1.04, p = 0.635). Conclusions We found no association between cerebral oxygenation measured with NIRS and NSE concentrations or outcome in patients resuscitated from OHCA. Trial registration ClinicalTrials.gov, NCT02698917. Registered on 26 January 2016. Electronic supplementary material The online version of this article (10.1186/s13054-019-2428-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Pekka Jakkula
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
| | - Johanna Hästbacka
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Matti Reinikainen
- Department of Anaesthesiology and Intensive Care, University of Eastern Finland and Kuopio University Hospital, Kuopio, Finland
| | - Ville Pettilä
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Pekka Loisa
- Department of Intensive Care, Päijät-Häme Central Hospital, Lahti, Finland
| | - Marjaana Tiainen
- Department of Neurology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Erika Wilkman
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Stepani Bendel
- Department of Intensive Care, Kuopio University Hospital, Kuopio, Finland
| | | | - Anni Pulkkinen
- Department of Intensive Care, Central Finland Central Hospital, Jyväskylä, Finland
| | - Minna Bäcklund
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Sirkku Heino
- Department of Anaesthesiology and Intensive Care, North Karelia Central Hospital, Joensuu, Finland
| | - Sari Karlsson
- Department of Intensive Care, Tampere University Hospital, Tampere, Finland
| | - Hiski Kopponen
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Markus B Skrifvars
- Department of Emergency Medicine and Services, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
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Takegawa R, Shiozaki T, Ogawa Y, Hirose T, Mori N, Ohnishi M, Ishihara T, Shintani A, Shimazu T. Usefulness of cerebral rSO 2 monitoring during CPR to predict the probability of return of spontaneous circulation. Resuscitation 2019; 139:201-207. [PMID: 31004721 DOI: 10.1016/j.resuscitation.2019.04.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 04/05/2019] [Accepted: 04/10/2019] [Indexed: 10/27/2022]
Abstract
BACKGROUND Cerebral oximetry (rSO2) may be useful in assessing the probability of return of spontaneous circulation (ROSC). However, the potential of assessing the trend in the rSO2 value has not been discussed when determining the probability of ROSC. METHODS This was a retrospective study of out-of-hospital cardiac arrest (OHCA) patients with continuous rSO2 values recorded during cardiopulmonary arrest. We used logistic regression analysis at each time point to investigate the best subsets of rSO2-related variables for ROSC, which included rSO2 (baseline), the baseline value of rSO2; amount of maximum rise, the maximum difference of rSO2 from rSO2 (baseline) over t minutes; ΔrSO2 (t):(amount of maximum rise)/rSO2 (baseline) over t minutes after hospital arrival. RESULTS Among the 90 included patients, 35 achieved ROSC. Area under the curve (AUC) analysis revealed that ΔrSO2 over a 16-min measurement period was significantly higher than ΔrSO2 measured over 4-, 8-, 12-, and 20-min periods. During this 16-min period, the subset showing the best AUC value was interaction of the amount of maximum rise and rSO2 (baseline) rather than the amount of maximum rise or ΔrSO2 alone (AUC = 0.91). CONCLUSIONS The combination of rSO2 (baseline) with the amount of maximum rise in rSO2 value over time might be a new index for the prediction of ROSC that could be useful in guiding cardiopulmonary resuscitation. Further studies are needed to validate these findings.
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Affiliation(s)
- Ryosuke Takegawa
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, 2-15 Yamada-oka, Suita, Osaka 565-0871, Japan.
| | - Tadahiko Shiozaki
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, 2-15 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Yoshihito Ogawa
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, 2-15 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Tomoya Hirose
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, 2-15 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Nobuto Mori
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, 2-15 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Mitsuo Ohnishi
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, 2-15 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Takuma Ishihara
- Department of Medical Statistics, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-cho, Abeno-ku, Osaka city, Osaka 545-0051, Japan
| | - Ayumi Shintani
- Department of Medical Statistics, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-cho, Abeno-ku, Osaka city, Osaka 545-0051, Japan
| | - Takeshi Shimazu
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, 2-15 Yamada-oka, Suita, Osaka 565-0871, Japan
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Papangelou A, Zink EK, Chang WTW, Frattalone A, Gergen D, Gottschalk A, Geocadin RG. Automated Pupillometry and Detection of Clinical Transtentorial Brain Herniation: A Case Series. Mil Med 2019; 183:e113-e121. [PMID: 29315412 DOI: 10.1093/milmed/usx018] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 10/24/2017] [Indexed: 11/14/2022] Open
Abstract
Introduction Transtentorial herniation (TTH) is a life-threatening neurologic condition that typically results from expansion of supratentorial mass lesions. A change in bedside pupillary examination is central to the clinical diagnosis of TTH. Materials and. Methods To quantify the changes in the pupillary examination that precede and accompany TTH and its treatment, we evaluated 12 episodes of herniation in three patients with supratentorial mass lesions using automated pupillometry (NeurOptics, Inc., Irvine, CA). Herniation was defined clinically by the onset of fixed and dilated pupils in association with decreased levels of consciousness. Automated pupillometry was measured simultaneously with the bedside clinical examination, but the clinical team was blinded to these results and could not act on the data. Data from the pupillometer were downloaded 1-2 times per week onto a secured laptop, and data processing was facilitated by the use of Mathematica 8.0. Results Neurologic Pupil Index measurements, values generated by the pupillometer based on an algorithm that incorporates pupillary size and reactivity in a normal population, were found to be abnormal before 73% of TTHs. This abnormality occurred at a median of 7.4 h before TTH. All episodes of TTH were reversed after clinical intervention at a median of 43 min after the event. The value did not fall to 0 in 42% of clinical herniations, but it did decrease to very abnormal values of 0.5-0.8. Conclusions The potential of automated pupillometry to guide the management of severely injured neurologic patients is intriguing and warrants further study in the critical care unit and beyond. The utility of a portable device in the combat setting may allow for triage of patients with severe neurologic injury.
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Affiliation(s)
- Alexander Papangelou
- Department of Anesthesiology, Emory University Hospital, 1364 Clifton Road NE, Atlanta GA 30322
| | - Elizabeth K Zink
- The Johns Hopkins Hospital Department of Neuroscience Nursing, 600N Wolfe Street, Baltimore MD 21287
| | - Wan-Tsu W Chang
- Department of Neurology, University of Maryland Medical Systems, 22S Greene Street, G7K55, Baltimore MD 21201.,Department of Emergency Medicine, University of Maryland Medical Systems, 22S Greene Street, G7K55, Baltimore MD 21201
| | - Anthony Frattalone
- Department of Neurology, San Antonio Military Medical, Center, 3551 Roger Brooke Drive, San Antonio TX 78219.,Department of Trauma Critical Care, San Antonio Military Medical Center, 3551 Roger Brooke Drive, San Antonio TX 78219
| | - Daniel Gergen
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, 600N Wolfe Street, Baltimore MD 21287
| | - Allan Gottschalk
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, 600N Wolfe Street, Baltimore MD 21287.,Department of Neurosurgery, Johns Hopkins University School of Medicine, 600N Wolfe Street, Baltimore MD 21287
| | - Romergryko G Geocadin
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, 600N Wolfe Street, Baltimore MD 21287.,Department of Neurosurgery, Johns Hopkins University School of Medicine, 600N Wolfe Street, Baltimore MD 21287.,Department of Neurology, Johns Hopkins University School of Medicine, 600N Wolfe Street, Baltimore MD 21287
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36
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Ben-Hamouda N, Oddo M. Monitorage cérébral après arrêt cardiaque : techniques et utilité clinique potentielle. MEDECINE INTENSIVE REANIMATION 2018. [DOI: 10.3166/rea-2018-0082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
L’arrêt cardiaque cause une hypoxie-ischémie globale, suivi de reperfusion, qui est susceptible d’engendrer des effets délétères sur la perfusion et l’oxygénation cérébrales, ainsi que le métabolisme cellulaire. Dans ce contexte, et en l’absence de thérapies spcéfiques de l’ischémie-reperfusion globale, le traitement est essentiellement de soutien, visant à optimiser la perfusion et l’oxygénation cérébrale, dans le but de prévenir ou atténuer les dégâts secondaires sur la fonction cérébrale. Dans ce contexte, le monitorage cérébral multimodal, notamment les techniques non-invasives, ont une utilité potentielle à la phase agiuë de l’arrêt cardiaque. Le but prinicpal de cette revue est de décrire les techniques actuellement dipsonibles, en nous focalisant surtout sur les outils noninvasifs (doppler transcranien, spectrospcope de proche infrarouge, électroencéphalographie, pupillométrie automatisée proche infrarouge), leur utilité clinique potentielle ainsi que leurs limitations, dans la prise en charge aiguë (optimisation de la perfusion et de l’oxygénation cérébrales) ainsi que pour la détermination du pronostic précoce après arrêt cardiaque.
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37
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Jakkula P, Reinikainen M, Hästbacka J, Loisa P, Tiainen M, Pettilä V, Toppila J, Lähde M, Bäcklund M, Okkonen M, Bendel S, Birkelund T, Pulkkinen A, Heinonen J, Tikka T, Skrifvars MB. Targeting two different levels of both arterial carbon dioxide and arterial oxygen after cardiac arrest and resuscitation: a randomised pilot trial. Intensive Care Med 2018; 44:2112-2121. [PMID: 30430209 PMCID: PMC6280824 DOI: 10.1007/s00134-018-5453-9] [Citation(s) in RCA: 128] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Accepted: 11/03/2018] [Indexed: 12/21/2022]
Abstract
Purpose We assessed the effects of targeting low-normal or high-normal arterial carbon dioxide tension (PaCO2) and normoxia or moderate hyperoxia after out-of-hospital cardiac arrest (OHCA) on markers of cerebral and cardiac injury. Methods Using a 23 factorial design, we randomly assigned 123 patients resuscitated from OHCA to low-normal (4.5–4.7 kPa) or high-normal (5.8–6.0 kPa) PaCO2 and to normoxia (arterial oxygen tension [PaO2] 10–15 kPa) or moderate hyperoxia (PaO2 20–25 kPa) and to low-normal or high-normal mean arterial pressure during the first 36 h in the intensive care unit. Here we report the results of the low-normal vs. high-normal PaCO2 and normoxia vs. moderate hyperoxia comparisons. The primary endpoint was the serum concentration of neuron-specific enolase (NSE) 48 h after cardiac arrest. Secondary endpoints included S100B protein and cardiac troponin concentrations, continuous electroencephalography (EEG) and near-infrared spectroscopy (NIRS) results and neurologic outcome at 6 months. Results In total 120 patients were included in the analyses. There was a clear separation in PaCO2 (p < 0.001) and PaO2 (p < 0.001) between the groups. The median (interquartile range) NSE concentration at 48 h was 18.8 µg/l (13.9–28.3 µg/l) in the low-normal PaCO2 group and 22.5 µg/l (14.2–34.9 µg/l) in the high-normal PaCO2 group, p = 0.400; and 22.3 µg/l (14.8–27.8 µg/l) in the normoxia group and 20.6 µg/l (14.2–34.9 µg/l) in the moderate hyperoxia group, p = 0.594). High-normal PaCO2 and moderate hyperoxia increased NIRS values. There were no differences in other secondary outcomes. Conclusions Both high-normal PaCO2 and moderate hyperoxia increased NIRS values, but the NSE concentration was unaffected. Registration ClinicalTrials.gov, NCT02698917. Registered on January 26, 2016. Electronic supplementary material The online version of this article (10.1007/s00134-018-5453-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Pekka Jakkula
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
| | - Matti Reinikainen
- Department of Intensive Care, North Karelia Central Hospital, Joensuu, Finland
| | - Johanna Hästbacka
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Pekka Loisa
- Department of Intensive Care, Päijät-Häme Central Hospital, Lahti, Finland
| | - Marjaana Tiainen
- Department of Neurology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Ville Pettilä
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Jussi Toppila
- Clinical Neurophysiology, HUS Medical Imaging Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Marika Lähde
- Department of Anaesthesia and Intensive Care, Päijät-Häme Central Hospital, Lahti, Finland
| | - Minna Bäcklund
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Marjatta Okkonen
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Stepani Bendel
- Department of Intensive Care, Kuopio University Hospital, Kuopio, Finland
| | | | - Anni Pulkkinen
- Department of Anaesthesia and Intensive Care, Central Finland Central Hospital, Jyväskylä, Finland
| | - Jonna Heinonen
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Tuukka Tikka
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Markus B Skrifvars
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Department of Emergency Medicine and Services, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
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Eertmans W, Tran TMP, Genbrugge C, Peene L, Mesotten D, Dens J, Jans F, De Deyne C. A prediction model for good neurological outcome in successfully resuscitated out-of-hospital cardiac arrest patients. Scand J Trauma Resusc Emerg Med 2018; 26:93. [PMID: 30413210 PMCID: PMC6230284 DOI: 10.1186/s13049-018-0558-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 10/10/2018] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND In the initial hours after out-of-hospital cardiac arrest (OHCA), it remains difficult to estimate whether the degree of post-ischemic brain damage will be compatible with long-term good neurological outcome. We aimed to construct prognostic models able to predict good neurological outcome of OHCA patients within 48 h after CCU admission using variables that are bedside available. METHODS Based on prospectively gathered data, a retrospective data analysis was performed on 107 successfully resuscitated OHCA patients with a presumed cardiac cause of arrest. Targeted temperature management at 33 °C was initiated at CCU admission. Prediction models for good neurological outcome (CPC1-2) at 180 days post-CA were constructed at hour 1, 12, 24 and 48 after CCU admission. Following multiple imputation, variables were selected using the elastic-net method. Each imputed dataset was divided into training and validation sets (80% and 20% of patients, respectively). Logistic regression was fitted on training sets and prediction performance was evaluated on validation sets using misclassification rates. RESULTS The prediction model at hour 24 predicted good neurological outcome with the lowest misclassification rate (21.5%), using a cut-off probability of 0.55 (sensitivity = 75%; specificity = 82%). This model contained sex, age, diabetes status, initial rhythm, percutaneous coronary intervention, presence of a BIS 0 value, mean BIS value and lactate as predictive variables for good neurological outcome. DISCUSSION This study shows that good neurological outcome after OHCA can be reasonably predicted as early as 24 h following ICU admission using parameters that are bedside available. These prediction models could identify patients who would benefit the most from intensive care.
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Affiliation(s)
- Ward Eertmans
- Department of Medicine and Life Sciences, Hasselt University, Diepenbeek, Belgium. .,Department of Anaesthesiology, Intensive Care, Emergency Medicine and Pain Therapy, Ziekenhuis Oost-Limburg, Schiepse Bos 6, 3600, Genk, Belgium.
| | - Thao Mai Phuong Tran
- Interuniversity Institute for Biostatistics and Statistical Bio-informatics, Hasselt University, Agoralaan Gebouw D, 3590, Diepenbeek, Belgium
| | - Cornelia Genbrugge
- Department of Medicine and Life Sciences, Hasselt University, Diepenbeek, Belgium.,Department of Anaesthesiology, Intensive Care, Emergency Medicine and Pain Therapy, Ziekenhuis Oost-Limburg, Schiepse Bos 6, 3600, Genk, Belgium
| | - Laurens Peene
- Department of Anaesthesiology, Intensive Care, Emergency Medicine and Pain Therapy, Ziekenhuis Oost-Limburg, Schiepse Bos 6, 3600, Genk, Belgium
| | - Dieter Mesotten
- Department of Medicine and Life Sciences, Hasselt University, Diepenbeek, Belgium.,Department of Anaesthesiology, Intensive Care, Emergency Medicine and Pain Therapy, Ziekenhuis Oost-Limburg, Schiepse Bos 6, 3600, Genk, Belgium
| | - Jo Dens
- Department of Medicine and Life Sciences, Hasselt University, Diepenbeek, Belgium.,Department of Cardiology, Ziekenhuis Oost-Limburg, Schiepse Bos 6, 3600, Genk, Belgium
| | - Frank Jans
- Department of Medicine and Life Sciences, Hasselt University, Diepenbeek, Belgium.,Department of Anaesthesiology, Intensive Care, Emergency Medicine and Pain Therapy, Ziekenhuis Oost-Limburg, Schiepse Bos 6, 3600, Genk, Belgium
| | - Cathy De Deyne
- Department of Medicine and Life Sciences, Hasselt University, Diepenbeek, Belgium.,Department of Anaesthesiology, Intensive Care, Emergency Medicine and Pain Therapy, Ziekenhuis Oost-Limburg, Schiepse Bos 6, 3600, Genk, Belgium
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Wallin E, Larsson IM, Nordmark-Grass J, Rosenqvist I, Kristofferzon ML, Rubertsson S. Characteristics of jugular bulb oxygen saturation in patients after cardiac arrest: A prospective study. Acta Anaesthesiol Scand 2018; 62:1237-1245. [PMID: 29797705 DOI: 10.1111/aas.13162] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 04/26/2018] [Accepted: 04/29/2018] [Indexed: 11/27/2022]
Abstract
BACKGROUND Using cerebral oxygen venous saturation post-cardiac arrest (CA) is limited because of a small sample size and prior to establishment of target temperature management (TTM). We aimed to describe variations in jugular bulb oxygen saturation during intensive care in relation to neurological outcome at 6 months post- CA in cases where TTM 33°C was applied. METHOD Prospective observational study in patients over 18 years, comatose immediately after resuscitation from CA. Patients were treated with TTM 33°C M and received a jugular bulb catheter within the first 26 hours post-CA. Neurological outcome was assessed at 6 months using the Cerebral Performance Categories (CPC) and dichotomized into good (CPC 1-2) and poor outcome (CPC 3-5). RESULTS Seventy-five patients were included and 37 (49%) patients survived with a good outcome at 6 months post-CA. No differences were found between patients with good outcome and poor outcome in jugular bulb oxygen saturation. Higher values were seen in differences in oxygen content between central venous oxygen saturation and jugular bulb oxygen saturation in patients with good outcome compared to patients with poor outcome at 6 hours (12 [8-21] vs 5 [-0.3 to 11]% P = .001) post-CA. Oxygen extraction fraction from the brain illustrated lower values in patients with poor outcome compared to patients with good outcome at 96 hours (14 [9-23] vs 31 [25-34]% P = .008). CONCLUSIONS Oxygen delivery and extraction differed in patients with a good outcome compared to those with a poor outcome at single time points. Based on the present findings, the usefulness of jugular bulb oxygen saturation for prognostic purposes is uncertain in patients treated with TTM 33°C post-CA.
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Affiliation(s)
- E. Wallin
- Department of Surgical Sciences - Anaesthesiology & Intensive Care; Uppsala University; Uppsala Sweden
| | - I.-M. Larsson
- Department of Surgical Sciences - Anaesthesiology & Intensive Care; Uppsala University; Uppsala Sweden
| | - J. Nordmark-Grass
- Department of Surgical Sciences - Anaesthesiology & Intensive Care; Uppsala University; Uppsala Sweden
| | - I. Rosenqvist
- Department of Surgical Sciences - Anaesthesiology & Intensive Care; Uppsala University; Uppsala Sweden
| | - M.-L. Kristofferzon
- Faculty of Health and Occupational Studies; Department of Health and Caring Sciences; University of Gävle; Gävle Sweden
- Department of Public Health and Caring Sciences; Uppsala University; Uppsala Sweden
| | - S. Rubertsson
- Department of Surgical Sciences - Anaesthesiology & Intensive Care; Uppsala University; Uppsala Sweden
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40
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Nguyen PL, Alreshaid L, Poblete RA, Konye G, Marehbian J, Sung G. Targeted Temperature Management and Multimodality Monitoring of Comatose Patients After Cardiac Arrest. Front Neurol 2018; 9:768. [PMID: 30254606 PMCID: PMC6141756 DOI: 10.3389/fneur.2018.00768] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 08/24/2018] [Indexed: 01/14/2023] Open
Abstract
Out-of-hospital cardiac arrest (CA) remains a leading cause of sudden morbidity and mortality; however, outcomes have continued to improve in the era of targeted temperature management (TTM). In this review, we highlight the clinical use of TTM, and provide an updated summary of multimodality monitoring possible in a modern ICU. TTM is neuroprotective for survivors of CA by inhibiting multiple pathophysiologic processes caused by anoxic brain injury, with a final common pathway of neuronal death. Current guidelines recommend the use of TTM for out-of-hospital CA survivors who present with a shockable rhythm. Further studies are being completed to determine the optimal timing, depth and duration of hypothermia to optimize patient outcomes. Although a multidisciplinary approach is necessary in the CA population, neurologists and neurointensivists are central in selecting TTM candidates and guiding patient care and prognostic evaluation. Established prognostic tools include clinal exam, SSEP, EEG and MR imaging, while functional MRI and invasive monitoring is not validated to improve outcomes in CA or aid in prognosis. We recommend that an evidence-based TTM and prognostication algorithm be locally implemented, based on each institution's resources and limitations. Given the high incidence of CA and difficulty in predicting outcomes, further study is urgently needed to determine the utility of more recent multimodality devices and studies.
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Affiliation(s)
- Peggy L Nguyen
- Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Laith Alreshaid
- Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Roy A Poblete
- Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Geoffrey Konye
- Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Jonathan Marehbian
- Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Gene Sung
- Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
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Nakatani Y, Nakayama T, Nishiyama K, Takahashi Y. Effect of target temperature management at 32-34 °C in cardiac arrest patients considering assessment by regional cerebral oxygen saturation: A multicenter retrospective cohort study. Resuscitation 2018; 126:185-190. [PMID: 29432783 DOI: 10.1016/j.resuscitation.2018.02.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 01/19/2018] [Accepted: 02/06/2018] [Indexed: 12/14/2022]
Abstract
AIM Target temperature management (TTM) is used in comatose post-cardiac arrest patients, but the recommended temperature range is wide. This study aimed to assess the effectiveness of TTM at 32-34 °C while considering the degree of cerebral injury and cerebral circulation, as assessed by regional cerebral oxygen saturation (rSO2). METHODS This is a secondary analysis of prospectively collected registry data from comatose patients who were transferred to 15 hospitals in Japan after out-of-hospital cardiac arrest (OHCA) from 2011 to 2013. The primary outcome was all-cause mortality at 90 days after OHCA, and the secondary outcome was favorable neurological outcomes as evaluated according to the Cerebral Performance Category. We monitored rSO2 noninvasively with near-infrared spectroscopy, which could assess cerebral perfusion and the balance of oxygen delivery and uptake. RESULTS We stratified 431 study patients into three groups according to rSO2 on hospital arrival: rSO2 ≤40% (n = 296), rSO2 41-60% (n = 67), and rSO2 ≥61% (n = 68). Propensity score analysis revealed that TTM at 32-34 °C decreased all-cause mortality in patients with rSO2 41-60% (average treatment effect on treated [ATT] by propensity score matching [PSM] -0.51, 95%CI -0.70 to -0.33; ATT by inverse probability of treatment weighting [IPW] -0.52, 95%CI -0.71 to -0.34), and increased favorable neurological outcomes in patients with rSO2 41-60% (ATT by PSM 0.50, 95%CI 0.32-0.68; ATT by IPW 0.52, 95%CI 0.35-0.69). CONCLUSION TTM at 32-34 °C effectively decreased all-cause mortality in comatose OHCA patients with rSO2 41-60% on hospital arrival in Japan.
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Affiliation(s)
- Yuka Nakatani
- Department of Health Informatics, Kyoto University School of Public Health, Yoshidakonoecho, Sakyo-ku, Kyoto City, Japan.
| | - Takeo Nakayama
- Department of Health Informatics, Kyoto University School of Public Health, Yoshidakonoecho, Sakyo-ku, Kyoto City, Japan
| | - Kei Nishiyama
- National Hospital Organization Kyoto Medical Center, 1-1 Fukakusa-mukaihatakecho, Fushimi-ku, Kyoto City, Japan
| | - Yoshimitsu Takahashi
- Department of Health Informatics, Kyoto University School of Public Health, Yoshidakonoecho, Sakyo-ku, Kyoto City, Japan
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Jakkula P, Reinikainen M, Hästbacka J, Pettilä V, Loisa P, Karlsson S, Laru-Sompa R, Bendel S, Oksanen T, Birkelund T, Tiainen M, Toppila J, Hakkarainen A, Skrifvars MB. Targeting low- or high-normal Carbon dioxide, Oxygen, and Mean arterial pressure After Cardiac Arrest and REsuscitation: study protocol for a randomized pilot trial. Trials 2017; 18:507. [PMID: 29084585 PMCID: PMC5663085 DOI: 10.1186/s13063-017-2257-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 10/16/2017] [Indexed: 12/02/2022] Open
Abstract
Background Arterial carbon dioxide tension (PaCO2), oxygen tension (PaO2), and mean arterial pressure (MAP) are modifiable factors that affect cerebral blood flow (CBF), cerebral oxygen delivery, and potentially the course of brain injury after cardiac arrest. No evidence regarding optimal treatment targets exists. Methods The Carbon dioxide, Oxygen, and Mean arterial pressure After Cardiac Arrest and REsuscitation (COMACARE) trial is a pilot multi-center randomized controlled trial (RCT) assessing the feasibility of targeting low- or high-normal PaCO2, PaO2, and MAP in comatose, mechanically ventilated patients after out-of-hospital cardiac arrest (OHCA), as well as its effect on brain injury markers. Using a 23 factorial design, participants are randomized upon admission to an intensive care unit into one of eight groups with various combinations of PaCO2, PaO2, and MAP target levels for 36 h after admission. The primary outcome is neuron-specific enolase (NSE) serum concentration at 48 h after cardiac arrest. The main feasibility outcome is the between-group differences in PaCO2, PaO2, and MAP during the 36 h after ICU admission. Secondary outcomes include serum concentrations of NSE, S100 protein, and cardiac troponin at 24, 48, and 72 h after cardiac arrest; cerebral oxygenation, measured with near-infrared spectroscopy (NIRS); potential differences in epileptic activity, monitored via continuous electroencephalogram (EEG); and neurological outcomes at six months after cardiac arrest. Discussion The trial began in March 2016 and participant recruitment has begun in all seven study sites as of March 2017. Currently, 115 of the total of 120 patients have been included. When completed, the results of this trial will provide preliminary clinical evidence regarding the feasibility of targeting low- or high-normal PaCO2, PaO2, and MAP values and its effect on developing brain injury, brain oxygenation, and epileptic seizures after cardiac arrest. The results of this trial will be used to evaluate whether a larger RCT on this subject is justified. Trial registration ClinicalTrials.gov, NCT02698917. Registered on 26 January 2016. Electronic supplementary material The online version of this article (doi:10.1186/s13063-017-2257-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Pekka Jakkula
- University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
| | | | - Johanna Hästbacka
- University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Ville Pettilä
- University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Pekka Loisa
- Päijät-Häme Central Hospital, Lahti, Finland
| | | | | | | | | | | | - Marjaana Tiainen
- University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Jussi Toppila
- University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Antti Hakkarainen
- University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Markus B Skrifvars
- University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Australia and New Zealand Intensive Care Research Centre, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia
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Inal MT, Memiş D, Yıldırım I, Uğur H, Erkaymaz A, Turan FN. O valor da medida da saturação cerebral de oxigênio para avaliar o prognóstico após ressuscitação cardiopulmonar. Braz J Anesthesiol 2017; 67:355-361. [DOI: 10.1016/j.bjan.2016.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 07/20/2016] [Indexed: 10/19/2022] Open
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45
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Sekhon MS, Ainslie PN, Griesdale DE. Clinical pathophysiology of hypoxic ischemic brain injury after cardiac arrest: a "two-hit" model. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2017; 21:90. [PMID: 28403909 PMCID: PMC5390465 DOI: 10.1186/s13054-017-1670-9] [Citation(s) in RCA: 317] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Hypoxic ischemic brain injury (HIBI) after cardiac arrest (CA) is a leading cause of mortality and long-term neurologic disability in survivors. The pathophysiology of HIBI encompasses a heterogeneous cascade that culminates in secondary brain injury and neuronal cell death. This begins with primary injury to the brain caused by the immediate cessation of cerebral blood flow following CA. Thereafter, the secondary injury of HIBI takes place in the hours and days following the initial CA and reperfusion. Among factors that may be implicated in this secondary injury include reperfusion injury, microcirculatory dysfunction, impaired cerebral autoregulation, hypoxemia, hyperoxia, hyperthermia, fluctuations in arterial carbon dioxide, and concomitant anemia.Clarifying the underlying pathophysiology of HIBI is imperative and has been the focus of considerable research to identify therapeutic targets. Most notably, targeted temperature management has been studied rigorously in preventing secondary injury after HIBI and is associated with improved outcome compared with hyperthermia. Recent advances point to important roles of anemia, carbon dioxide perturbations, hypoxemia, hyperoxia, and cerebral edema as contributing to secondary injury after HIBI and adverse outcomes. Furthermore, breakthroughs in the individualization of perfusion targets for patients with HIBI using cerebral autoregulation monitoring represent an attractive area of future work with therapeutic implications.We provide an in-depth review of the pathophysiology of HIBI to critically evaluate current approaches for the early treatment of HIBI secondary to CA. Potential therapeutic targets and future research directions are summarized.
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Affiliation(s)
- Mypinder S Sekhon
- Division of Critical Care Medicine, Department of Medicine, Vancouver General Hospital, University of British Columbia, Room 2438, Jim Pattison Pavilion, 2nd Floor, 855 West 12th Avenue, Vancouver, BC, V5Z 1M9, Canada. .,Centre for Heart, Lung and Vascular Health, School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, BC, Canada.
| | - Philip N Ainslie
- Centre for Heart, Lung and Vascular Health, School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, BC, Canada
| | - Donald E Griesdale
- Division of Critical Care Medicine, Department of Medicine, Vancouver General Hospital, University of British Columbia, Room 2438, Jim Pattison Pavilion, 2nd Floor, 855 West 12th Avenue, Vancouver, BC, V5Z 1M9, Canada.,Department of Anaesthesiology, Pharmacology and Therapeutics, Vancouver General Hospital, University of British Columbia, West 12th Avenue, Vancouver, BC, V5Z 1M9, Canada.,Centre for Clinical Epidemiology and Evaluation, Vancouver Coastal Health Research Institute, University of British Columbia, 899 West 12th Avenue, Vancouver, BC V5Z 1M9, Canada
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46
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Taccone FS, Baar I, De Deyne C, Druwe P, Legros B, Meyfroidt G, Ossemann M, Gaspard N. Neuroprognostication after adult cardiac arrest treated with targeted temperature management: task force for Belgian recommendations. Acta Neurol Belg 2017; 117:3-15. [PMID: 28168412 DOI: 10.1007/s13760-017-0755-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 01/25/2017] [Indexed: 12/27/2022]
Abstract
The prognosis of patients who are admitted to the hospital after cardiac arrest often relies on neurological examination, which could be significantly influenced by the use of sedative drugs or the implementation of targeted temperature management. The need for early and accurate prognostication is crucial as up to 15-20% of patients could be considered as having a poor outcome and may undergo withdrawal of life-sustaining therapies while a complete neurological recovery is still possible. As current practice in Belgium is still based on a very early assessment of neurological function in these patients, the Belgian Society of Intensive Care Medicine created a multidisciplinary Task Force to provide an optimal approach for monitoring and refine prognosis of CA survivors. This Task Force underlined the importance to use a multimodal approach using several additional tools (e.g., electrophysiological tests, neuroimaging, biomarkers) and to refer cases with uncertain prognosis to specialized centers to better evaluate the extent of brain injury in these patients.
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Affiliation(s)
- Fabio Silvio Taccone
- Department of Intensive Care, Hôpital Erasme, Université Libre de Bruxelles (ULB), Route de Lennik, 808, 1070, Brussels, Belgium
| | - Ingrid Baar
- Department of Neurology, Antwerp University Hospital, 2650, Edegem, Belgium
| | - Cathy De Deyne
- Department of Anesthesiology, Intensive Care, Emergency Medicine and Pain Therapy, Ziekenhuis Oost-Limburg ZOL, Schiepse Bos 6, 3600, Genk, Belgium
| | - Patrick Druwe
- Department of Intensive Care, Ghent University Hospital, De Pintelaan, 185, 9000, Ghent, Belgium
| | - Benjamin Legros
- Department of Neurology, Hôpital Erasme, Université Libre de Bruxelles (ULB), Route de Lennik, 808, 1070, Brussels, Belgium.
| | - Geert Meyfroidt
- Department of Intensive Care, UZ Leuven, Herestraat 49, box 7003 63, 3000, Leuven, Belgium
| | - Michel Ossemann
- Department of Neurology, CHU UCL Namur, Université Catholique de Louvain, Avenue Gaston Thérasse, 1, 5530, Yvoir, Belgium
| | - Nicolas Gaspard
- Department of Neurology, Hôpital Erasme, Université Libre de Bruxelles (ULB), Route de Lennik, 808, 1070, Brussels, Belgium
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47
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Ehara N, Hirose T, Shiozaki T, Wakai A, Nishimura T, Mori N, Ohnishi M, Sadamitsu D, Shimazu T. The relationship between cerebral regional oxygen saturation during extracorporeal cardiopulmonary resuscitation and the neurological outcome in a retrospective analysis of 16 cases. J Intensive Care 2017; 5:20. [PMID: 28250933 PMCID: PMC5324259 DOI: 10.1186/s40560-017-0216-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 02/18/2017] [Indexed: 11/30/2022] Open
Abstract
Background In recent years, the measurement of cerebral regional oxygen saturation (rSO2) during resuscitation has attracted attention. The objective of this study was to clarify the relationship between the serial changes in the cerebral rSO2 values during extracorporeal cardiopulmonary resuscitation (ECPR) and the neurological outcome. Methods We measured the serial changes in the cerebral rSO2 values of patients with out-of-hospital cardiac arrest before and after ECPR in Osaka National Hospital. Results From January 2013 through March 2015, the serial changes in the cerebral rSO2 values were evaluated in 16 patients. Their outcomes, as measured by the Glasgow Outcome Scale (GOS) score at discharge, included good recovery (GR) (n = 4), vegetative state (VS) (n = 2), and death (D) (n = 10). In the poor neurological group (VS and D: n = 12; age, 52.8 ± 4.0 years), the cerebral rSO2 values showed a significant increase during ECPR (5 min before ECPR: 52.0 ± 1.8%; 2 min before ECPR: 56.1 ± 2.3%; 2 min after ECPR: 63.5 ± 2.2%; 5 min after ECPR: 66.4 ± 2.2%; 10 min after ECPR: 67.6 ± 2.3% [P < 0.01]). In contrast, in the good neurological group (GR: n = 4; age, 53.8 ± 6.9 years), the cerebral rSO2 values did not increase to a significant extent during ECPR (5 min before ECPR: 61.9 ± 3.1%; 2 min before ECPR: 57.1 ± 4.0%; 2 min after ECPR: 59.6 ± 3.8%; 5 min after ECPR: 61.0 ± 3.7%; 10 min after ECPR: 62.0 ± 3.8% [P = 0.88]). Our study suggested that the patients whose cerebral rSO2 values showed no significant improvement after ECPR might have had a good neurological prognosis. Conclusions The serial changes in the cerebral rSO2 values during ECPR may predict a patient’s neurological outcome. The further evaluation of the validity of rSO2 monitoring during ECPR may lead to a new resuscitation strategy.
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Affiliation(s)
- Naoki Ehara
- Traumatology and Critical Care Medical Center, National Hospital Organization Osaka National Hospital, 2-1-14 Hoenzaka Chuo-ku, Osaka, Osaka 540-0006 Japan
| | - Tomoya Hirose
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita, Osaka 565-0871 Japan
| | - Tadahiko Shiozaki
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita, Osaka 565-0871 Japan
| | - Akinori Wakai
- Traumatology and Critical Care Medical Center, National Hospital Organization Osaka National Hospital, 2-1-14 Hoenzaka Chuo-ku, Osaka, Osaka 540-0006 Japan
| | - Tetsuro Nishimura
- Traumatology and Critical Care Medical Center, National Hospital Organization Osaka National Hospital, 2-1-14 Hoenzaka Chuo-ku, Osaka, Osaka 540-0006 Japan
| | - Nobuto Mori
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita, Osaka 565-0871 Japan
| | - Mitsuo Ohnishi
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita, Osaka 565-0871 Japan
| | - Daikai Sadamitsu
- Traumatology and Critical Care Medical Center, National Hospital Organization Osaka National Hospital, 2-1-14 Hoenzaka Chuo-ku, Osaka, Osaka 540-0006 Japan
| | - Takeshi Shimazu
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita, Osaka 565-0871 Japan
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Morgan RW, Kilbaugh TJ. Optimal arterial carbon dioxide tension following cardiac arrest: Let Goldilocks decide? Resuscitation 2016; 111:A1-A2. [PMID: 27964916 DOI: 10.1016/j.resuscitation.2016.11.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Accepted: 11/24/2016] [Indexed: 10/20/2022]
Affiliation(s)
- Ryan W Morgan
- The Children's Hospital of Philadelphia, Department of Anesthesiology and Critical Care Medicine, 34th Street & Civic Center Boulevard, Philadelphia, PA 19104, United States
| | - Todd J Kilbaugh
- The Children's Hospital of Philadelphia, Department of Anesthesiology and Critical Care Medicine, 34th Street & Civic Center Boulevard, Philadelphia, PA 19104, United States.
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50
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Genbrugge C, Eertmans W, Meex I, Van Kerrebroeck M, Daems N, Creemers A, Jans F, Boer W, Dens J, De Deyne C. What is the value of regional cerebral saturation in post-cardiac arrest patients? A prospective observational study. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2016; 20:327. [PMID: 27733184 PMCID: PMC5062837 DOI: 10.1186/s13054-016-1509-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 09/26/2016] [Indexed: 11/16/2022]
Abstract
Background The aim of this study was to elucidate the possible role of cerebral saturation monitoring in the post-cardiac arrest setting. Methods Cerebral tissue saturation (SctO2) was measured in 107 successfully resuscitated out-of-hospital cardiac arrest patients for 48 hours between 2011 and 2015. All patients were treated with targeted temperature management, 24 hours at 33 °C and rewarming at 0.3 °C per hour. A threshold analysis was performed as well as a linear mixed models analysis for continuous SctO2 data to compare the relation between SctO2 and favorable (cerebral performance category (CPC) 1–2) and unfavorable outcome (CPC 3–4–5) at 180 days post-cardiac arrest in OHCA patients. Results Of the 107 patients, 50 (47 %) had a favorable neurological outcome at 180 days post-cardiac arrest. Mean SctO2 over 48 hours was 68 % ± 4 in patients with a favorable outcome compared to 66 % ± 5 for patients with an unfavorable outcome (p = 0.035). No reliable SctO2 threshold was able to predict favorable neurological outcome. A significant different course of SctO2 was observed, represented by a logarithmic and linear course of SctO2 in patients with favorable outcome and unfavorable outcome, respectively (p < 0.001). During the rewarming phase, significant higher SctO2 values were observed in patients with a favorable neurological outcome (p = 0.046). Conclusions This study represents the largest post-resuscitation cohort evaluated using NIRS technology, including a sizeable cohort of balloon-assisted patients. Although a significant difference was observed in the overall course of SctO2 between OHCA patients with a favorable and unfavorable outcome, the margin was too small to likely represent functional outcome differentiation based on SctO2 alone. As such, these results given such methodology as performed in this study suggest that NIRS is insufficient by itself to serve in outcome prognostication, but there may remain benefit when incorporated into a multi-neuromonitoring bedside assessment algorithm.
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Affiliation(s)
- Cornelia Genbrugge
- Faculty of Medicine and Life Sciences, Hasselt University, Martelarenlaan 42, 3500, Hasselt, Belgium. .,Department of Anesthesiology, Intensive Care, Emergency Medicine and Pain Therapy, Ziekenhuis Oost-Limburg Genk, Schiepse Bos 6, 3600, Genk, Belgium.
| | - Ward Eertmans
- Faculty of Medicine and Life Sciences, Hasselt University, Martelarenlaan 42, 3500, Hasselt, Belgium.,Department of Anesthesiology, Intensive Care, Emergency Medicine and Pain Therapy, Ziekenhuis Oost-Limburg Genk, Schiepse Bos 6, 3600, Genk, Belgium
| | - Ingrid Meex
- Department of Anesthesiology, Intensive Care, Emergency Medicine and Pain Therapy, Ziekenhuis Oost-Limburg Genk, Schiepse Bos 6, 3600, Genk, Belgium
| | - Margaretha Van Kerrebroeck
- Faculty of Medicine and Life Sciences, Hasselt University, Martelarenlaan 42, 3500, Hasselt, Belgium.,Department of Anesthesiology, Intensive Care, Emergency Medicine and Pain Therapy, Ziekenhuis Oost-Limburg Genk, Schiepse Bos 6, 3600, Genk, Belgium
| | - Noami Daems
- Faculty of Medicine and Life Sciences, Hasselt University, Martelarenlaan 42, 3500, Hasselt, Belgium.,Department of Anesthesiology, Intensive Care, Emergency Medicine and Pain Therapy, Ziekenhuis Oost-Limburg Genk, Schiepse Bos 6, 3600, Genk, Belgium
| | - An Creemers
- I-Biostat (CenStat), Hasselt University, Agoralaan gebouw D, 3590, Diepenbeek, Belgium
| | - Frank Jans
- Faculty of Medicine and Life Sciences, Hasselt University, Martelarenlaan 42, 3500, Hasselt, Belgium.,Department of Anesthesiology, Intensive Care, Emergency Medicine and Pain Therapy, Ziekenhuis Oost-Limburg Genk, Schiepse Bos 6, 3600, Genk, Belgium
| | - Willem Boer
- Department of Anesthesiology, Intensive Care, Emergency Medicine and Pain Therapy, Ziekenhuis Oost-Limburg Genk, Schiepse Bos 6, 3600, Genk, Belgium
| | - Jo Dens
- Faculty of Medicine and Life Sciences, Hasselt University, Martelarenlaan 42, 3500, Hasselt, Belgium.,Department of Cardiology, Ziekenhuis Oost-Limburg Genk, Schiepse Bos 6, 3600, Genk, Belgium
| | - Cathy De Deyne
- Faculty of Medicine and Life Sciences, Hasselt University, Martelarenlaan 42, 3500, Hasselt, Belgium.,Department of Anesthesiology, Intensive Care, Emergency Medicine and Pain Therapy, Ziekenhuis Oost-Limburg Genk, Schiepse Bos 6, 3600, Genk, Belgium
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