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Cho SM, Hwang J, Chiarini G, Amer M, Antonini MV, Barrett N, Belohlavek J, Brodie D, Dalton HJ, Diaz R, Elhazmi A, Tahsili-Fahadan P, Fanning J, Fraser J, Hoskote A, Jung JS, Lotz C, MacLaren G, Peek G, Polito A, Pudil J, Raman L, Ramanathan K, Dos Reis Miranda D, Rob D, Salazar Rojas L, Taccone FS, Whitman G, Zaaqoq AM, Lorusso R. Neurological monitoring and management for adult extracorporeal membrane oxygenation patients: Extracorporeal Life Support Organization consensus guidelines. Crit Care 2024; 28:296. [PMID: 39243056 PMCID: PMC11380208 DOI: 10.1186/s13054-024-05082-z] [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] [Received: 07/17/2024] [Accepted: 08/28/2024] [Indexed: 09/09/2024] Open
Abstract
BACKGROUND Critical care of patients on extracorporeal membrane oxygenation (ECMO) with acute brain injury (ABI) is notable for a lack of high-quality clinical evidence. Here, we offer guidelines for neurological care (neurological monitoring and management) of adults during and after ECMO support. METHODS These guidelines are based on clinical practice consensus recommendations and scientific statements. We convened an international multidisciplinary consensus panel including 30 clinician-scientists with expertise in ECMO from all chapters of the Extracorporeal Life Support Organization (ELSO). We used a modified Delphi process with three rounds of voting and asked panelists to assess the recommendation levels. RESULTS We identified five key clinical areas needing guidance: (1) neurological monitoring, (2) post-cannulation early physiological targets and ABI, (3) neurological therapy including medical and surgical intervention, (4) neurological prognostication, and (5) neurological follow-up and outcomes. The consensus produced 30 statements and recommendations regarding key clinical areas. We identified several knowledge gaps to shape future research efforts. CONCLUSIONS The impact of ABI on morbidity and mortality in ECMO patients is significant. Particularly, early detection and timely intervention are crucial for improving outcomes. These consensus recommendations and scientific statements serve to guide the neurological monitoring and prevention of ABI, and management strategy of ECMO-associated ABI.
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Affiliation(s)
- Sung-Min Cho
- Divisions of Neuroscience Critical Care and Cardiac Surgery Departments of Neurology, Neurosurgery, and Anaesthesiology and Critical Care Medicine, The Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Phipps 455, Baltimore, MD, 21287, USA.
- Division of Cardiac Surgery, Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Jaeho Hwang
- Divisions of Neuroscience Critical Care and Cardiac Surgery Departments of Neurology, Neurosurgery, and Anaesthesiology and Critical Care Medicine, The Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Phipps 455, Baltimore, MD, 21287, USA
| | - Giovanni Chiarini
- Cardiothoracic Surgery Department, Heart and Vascular Centre, Maastricht University Medical Centre, Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands
- Division of Anaesthesiology, Intensive Care and Emergency Medicine, Spedali Civili University, Affiliated Hospital of Brescia, Brescia, Italy
| | - Marwa Amer
- Medical/Critical Pharmacy Division, King Faisal Specialist Hospital and Research Center, 11564, Al Mathar Ash Shamali, Riyadh, Saudi Arabia
- Alfaisal University College of Medicine, Riyadh, Saudi Arabia
| | | | - Nicholas Barrett
- Department of Critical Care Medicine, Guy's and St Thomas' National Health Service Foundation Trust, London, UK
| | - Jan Belohlavek
- 2nd Department of Medicine, Cardiology and Angiologiy, General University Hospital and 1st School of Medicine, Charles University, Prague, Czech Republic
| | - Daniel Brodie
- Division of Pulmonary, and Critical Care Medicine, Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Heidi J Dalton
- Departments of Surgery and Pediatrics, Creighton University, Omaha, NE, USA
| | - Rodrigo Diaz
- Programa de Oxigenación Por Membrana Extracorpórea, Hospital San Juan de Dios Santiago, Santiago, Chile
| | - Alyaa Elhazmi
- Medical/Critical Pharmacy Division, King Faisal Specialist Hospital and Research Center, 11564, Al Mathar Ash Shamali, Riyadh, Saudi Arabia
- Alfaisal University College of Medicine, Riyadh, Saudi Arabia
| | - Pouya Tahsili-Fahadan
- Divisions of Neuroscience Critical Care and Cardiac Surgery Departments of Neurology, Neurosurgery, and Anaesthesiology and Critical Care Medicine, The Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Phipps 455, Baltimore, MD, 21287, USA
- Medical Critical Care Service, Department of Medicine, Inova Fairfax Medical Campus, Falls Church, VA, USA
| | - Jonathon Fanning
- Critical Care Research Group, Adult Intensive Care Services, The Prince Charles Hospital and University of Queensland, Rode Rd, Chermside, QLD, 4032, Australia
| | - John Fraser
- Critical Care Research Group, Adult Intensive Care Services, The Prince Charles Hospital and University of Queensland, Rode Rd, Chermside, QLD, 4032, Australia
| | - Aparna Hoskote
- Cardiorespiratory and Critical Care Division, Great Ormond Street Hospital for, Children National Health Service Foundation Trust, London, UK
| | - Jae-Seung Jung
- Department of Thoracic and Cardiovascular Surgery, Korea University Medicine, Seoul, Republic of Korea
| | - Christopher Lotz
- Department of Anaesthesiology, Intensive Care, Emergency and Pain Medicine, University Hospital Würzburg, Würzburg, Germany
| | - Graeme MacLaren
- Cardiothoracic Intensive Care Unit, Department of Cardiac, Thoracic and Vascular Surgery, National University Health System, Singapore, Singapore
| | - Giles Peek
- Congenital Heart Center, Departments of Surgery and Pediatrics, University of Florida, Gainesville, FL, USA
| | - Angelo Polito
- Pediatric Intensive Care Unit, Department of Woman, Child, and Adolescent Medicine, Geneva University Hospital, Geneva, Switzerland
| | - Jan Pudil
- 2nd Department of Medicine, Cardiology and Angiologiy, General University Hospital and 1st School of Medicine, Charles University, Prague, Czech Republic
| | - Lakshmi Raman
- Department of Pediatrics, Section Critical Care Medicine, Children's Medical Center at Dallas, The University of Texas Southwestern Medical Center at Dallas, Dallas, TX, USA
| | - Kollengode Ramanathan
- Cardiothoracic Intensive Care Unit, Department of Cardiac, Thoracic and Vascular Surgery, National University Health System, Singapore, Singapore
| | - Dinis Dos Reis Miranda
- Department of Intensive Care, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Daniel Rob
- 2nd Department of Medicine, Cardiology and Angiologiy, General University Hospital and 1st School of Medicine, Charles University, Prague, Czech Republic
| | - Leonardo Salazar Rojas
- ECMO Department, Fundacion Cardiovascular de Colombia, Floridablanca, Santander, Colombia
| | - Fabio Silvio Taccone
- Department of Intensive Care, Hôpital Universitaire de Bruxelles (HUB), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Glenn Whitman
- Division of Cardiac Surgery, Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Akram M Zaaqoq
- Department of Anesthesiology, Division of Critical Care, University of Virginia, Charlottesville, VA, USA
| | - Roberto Lorusso
- Cardiothoracic Surgery Department, Heart and Vascular Centre, Maastricht University Medical Centre, Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands
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Pezzato S, Govindan RB, Bagnasco F, Panagopoulos EM, Robba C, Beqiri E, Smielewski P, Munoz RA, d'Udekem Y, Moscatelli A, du Plessis A. Cerebral autoregulation monitoring using the cerebral oximetry index after neonatal cardiac surgery: A single-center retrospective cohort study. J Thorac Cardiovasc Surg 2024; 168:353-363.e4. [PMID: 38065519 DOI: 10.1016/j.jtcvs.2023.12.003] [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: 09/01/2023] [Revised: 10/31/2023] [Accepted: 12/03/2023] [Indexed: 01/18/2024]
Abstract
OBJECTIVE To investigate whether cerebral autoregulation is impaired after neonatal cardiac surgery and whether changes in autoregulation metrics are associated with different congenital heart defects or the incidence of postoperative neurologic events. METHODS This is a retrospective observational study of neonates undergoing monitoring during the first 72 hours after cardiac surgery. Archived data were processed to calculate the cerebral oximetry index (COx) and derived metrics. Acute neurologic events were identified by an electronic medical record review. The Skillings-Mack test and the Wilcoxon signed-rank test were used to analyze the evolution of autoregulation metrics over time; the Mann-Whitney U test was used for comparison between groups. RESULTS We included 28 neonates, 7 (25%) with hypoplastic left heart syndrome and 21 (75%) with transposition of the great arteries. Overall, the median percentage of time spent with impaired autoregulation, defined as percentage of time with a COx >0.3, was 31.6% (interquartile range, 21.1%-38.3%). No differences in autoregulation metrics between different cardiac defects subgroups were observed. Seven patients (25%) experienced a postoperative acute neurologic event. Compared to the neonates without an acute neurologic event, those with an acute neurologic event had a higher COx (0.16 vs 0.07; P = .035), a higher percentage of time with a COx >0.3 (39.4% vs 29.2%; P = .017), and a higher percentage of time with a mean arterial pressure below the lower limit of autoregulation (13.3% vs 6.9%; P = .048). CONCLUSIONS COx monitoring after cardiac surgery allowed for the detection of impaired cerebral autoregulation, which was more frequent in neonates with postoperative acute neurologic events.
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Affiliation(s)
- Stefano Pezzato
- Neonatal and Pediatric Intensive Care Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy; Division of Cardiovascular Surgery, Children's National Hospital, Washington, DC.
| | | | - Francesca Bagnasco
- Epidemiology and Biostatistics Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | | | - Chiara Robba
- Anesthesia and Critical Care, IRCCS Policlinico San Martino, Genova, Italy
| | - Erta Beqiri
- Brain Physics Laboratory, Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom
| | - Peter Smielewski
- Brain Physics Laboratory, Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom
| | - Ricardo A Munoz
- Division of Cardiac Critical Care Medicine, Children's National Hospital, Washington, DC
| | - Yves d'Udekem
- Division of Cardiovascular Surgery, Children's National Hospital, Washington, DC
| | - Andrea Moscatelli
- Neonatal and Pediatric Intensive Care Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Adre du Plessis
- Prenatal Pediatrics Institute, Children's National Hospital, Washington, DC
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3
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Zhang LQ, Chang H, Kalra A, Humayun M, Rosenblatt KR, Shah VA, Geocadin RG, Brown CH, Kim BS, Whitman GJR, Rivera-Lara L, Cho SM. Continuous Monitoring of Cerebral Autoregulation in Adults Supported by Extracorporeal Membrane Oxygenation. Neurocrit Care 2024; 41:185-193. [PMID: 38326536 PMCID: PMC11303590 DOI: 10.1007/s12028-023-01932-w] [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] [Received: 09/12/2023] [Accepted: 12/21/2023] [Indexed: 02/09/2024]
Abstract
BACKGROUND Impaired cerebral autoregulation (CA) is one of several proposed mechanisms of acute brain injury in patients supported by extracorporeal membrane oxygenation (ECMO). The primary aim of this study was to determine the feasibility of continuous CA monitoring in adult ECMO patients. Our secondary aims were to describe changes in cerebral oximetry index (COx) and other metrics of CA over time and in relation to functional neurologic outcomes. METHODS This is a single-center prospective observational study. We measured COx, a surrogate measurement of cerebral blood flow measured by near-infrared spectroscopy, which is an index of CA derived from the moving correlation between mean arterial pressure (MAP) and slow waves of regional cerebral oxygen saturation. A COx value that approaches 1 indicates impaired CA. Using COx, we determined the optimal MAP (MAPOPT) and lower and upper limits of autoregulation for individual patients. These measurements were examined in relation to modified Rankin Scale (mRS) scores. RESULTS Fifteen patients (median age 57 years [interquartile range 47-69]) with 150 autoregulation measurements were included for analysis. Eleven were on veno-arterial ECMO (VA-ECMO), and four were on veno-venous ECMO (VV-ECMO). Mean COx was higher on postcannulation day 1 than on day 2 (0.2 vs. 0.09, p < 0.01), indicating improved CA over time. COx was higher in VA-ECMO patients than in VV-ECMO patients (0.12 vs. 0.06, p = 0.04). Median MAPOPT for the entire cohort was highly variable, ranging from 55 to 110 mm Hg. Patients with mRS scores 0-3 (good outcome) at 3 and 6 months spent less time outside MAPOPT compared with patients with mRS scores 4-6 (poor outcome) (74% vs. 82%, p = 0.01). The percentage of time when observed MAP was outside the limits of autoregulation was higher on postcannulation day 1 than on day 2 (18.2% vs. 3.3%, p < 0.01). CONCLUSIONS In ECMO patients, it is feasible to monitor CA continuously at the bedside. CA improved over time, most significantly between postcannulation days 1 and 2. CA was more impaired in VA-ECMO patients than in VV-ECMO patients. Spending less time outside MAPOPT may be associated with achieving a good neurologic outcome.
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Affiliation(s)
- Lucy Q Zhang
- Division of Neurosciences Critical Care, Departments of Neurology, Neurosurgery, and Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Phipps 455, Baltimore, MD, USA
| | - Henry Chang
- Division of Neurosciences Critical Care, Departments of Neurology, Neurosurgery, and Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Phipps 455, Baltimore, MD, USA
| | - Andrew Kalra
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Mariyam Humayun
- Division of Neurosciences Critical Care, Departments of Neurology, Neurosurgery, and Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Phipps 455, Baltimore, MD, USA
| | - Kathryn R Rosenblatt
- Division of Neurosciences Critical Care, Departments of Neurology, Neurosurgery, and Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Phipps 455, Baltimore, MD, USA
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Vishank A Shah
- Division of Neurosciences Critical Care, Departments of Neurology, Neurosurgery, and Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Phipps 455, Baltimore, MD, USA
| | - Romergryko G Geocadin
- Division of Neurosciences Critical Care, Departments of Neurology, Neurosurgery, and Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Phipps 455, Baltimore, MD, USA
| | - Charles H Brown
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Bo Soo Kim
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Glenn J R Whitman
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Lucia Rivera-Lara
- Department of Neurology and Center for Academic Medicine, School of Medicine, Stanford University, Palo Alto, CA, USA
| | - Sung-Min Cho
- Division of Neurosciences Critical Care, Departments of Neurology, Neurosurgery, and Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Phipps 455, Baltimore, MD, USA.
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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4
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Pezzato S, Moscatelli A, Fedriga M, Govindan RB, Waberski AT, Munoz RA, d'Udekem Y, Yerebakan C. Intraoperative Cerebral Autoregulation Monitoring Using Cerebral Oximetry Index for Early Detection of Neurologic Complications in an Infant Undergoing Repair of Interrupted Aortic Arch. J Cardiothorac Vasc Anesth 2024; 38:1550-1553. [PMID: 38627173 DOI: 10.1053/j.jvca.2024.03.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 03/13/2024] [Accepted: 03/17/2024] [Indexed: 06/15/2024]
Affiliation(s)
- Stefano Pezzato
- Neonatal and Pediatric Intensive Care Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy; Division of Cardiac Surgery, Children's National Hospital, The George Washington University School of Medicine and Health Sciences, Washington, DC.
| | - Andrea Moscatelli
- Neonatal and Pediatric Intensive Care Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Marta Fedriga
- Neonatal and Pediatric Intensive Care Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | | | - Andrew T Waberski
- Division of Anesthesiology, Pain, and Perioperative Medicine, Children's National Hospital, Washington, DC
| | - Ricardo A Munoz
- Division of Cardiac Critical Care Medicine, Children's National Hospital, Washington, DC
| | - Yves d'Udekem
- Division of Cardiac Surgery, Children's National Hospital, The George Washington University School of Medicine and Health Sciences, Washington, DC
| | - Can Yerebakan
- Division of Cardiac Surgery, Children's National Hospital, The George Washington University School of Medicine and Health Sciences, Washington, DC
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5
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Fedriga M, Martini S, Iodice FG, Sortica da Costa C, Pezzato S, Moscatelli A, Beqiri E, Czosnyka M, Smielewski P, Agrawal S. Cerebral autoregulation in paediatric and neonatal intensive care: A scoping review. J Cereb Blood Flow Metab 2024:271678X241261944. [PMID: 38867574 DOI: 10.1177/0271678x241261944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/14/2024]
Abstract
Deranged cerebral autoregulation (CA) is associated with worse outcome in adult brain injury. Strategies for monitoring CA and maintaining the brain at its 'best CA status' have been implemented, however, this approach has not yet developed for the paediatric population. This scoping review aims to find up-to-date evidence on CA assessment in children and neonates with a view to identify patient categories in which CA has been measured so far, CA monitoring methods and its relationship with clinical outcome if any. A literature search was conducted for studies published within 31st December 2022 in 3 bibliographic databases. Out of 494 papers screened, this review includes 135 studies. Our literature search reveals evidence for CA measurement in the paediatric population across different diagnostic categories and age groups. The techniques adopted, indices and thresholds used to assess and define CA are heterogeneous. We discuss the relevance of available evidence for CA assessment in the paediatric population. However, due to small number of studies and heterogeneity of methods used, there is no conclusive evidence to support universal adoption of CA monitoring, technique, and methodology. This calls for further work to understand the clinical impact of CA monitoring in paediatric and neonatal intensive care.
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Affiliation(s)
- Marta Fedriga
- Neonatal and Paediatric Intensive Care Unit, IRCCS Giannina Gaslini Institute, Genoa, Italy
| | - Silvia Martini
- Neonatal Intensive Care Unit, IRCCS AOUBO, Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Francesca G Iodice
- Paediatric Cardiac Anaesthesia and Intensive Care Unit, IRCCS, Bambino Gesu' Hospital, Rome, Italy
| | | | - Stefano Pezzato
- Neonatal and Paediatric Intensive Care Unit, IRCCS Giannina Gaslini Institute, Genoa, Italy
| | - Andrea Moscatelli
- Neonatal and Paediatric Intensive Care Unit, IRCCS Giannina Gaslini Institute, Genoa, Italy
| | - Erta Beqiri
- Brain Physics Laboratory, Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, UK
| | - Marek Czosnyka
- Brain Physics Laboratory, Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, UK
| | - Peter Smielewski
- Brain Physics Laboratory, Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, UK
| | - Shruti Agrawal
- Department of Paediatric Intensive Care, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK
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Chalifoux N, Ko T, Slovis J, Spelde A, Kilbaugh T, Mavroudis CD. Cerebral Autoregulation: A Target for Improving Neurological Outcomes in Extracorporeal Life Support. Neurocrit Care 2024:10.1007/s12028-024-02002-5. [PMID: 38811513 DOI: 10.1007/s12028-024-02002-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 04/18/2024] [Indexed: 05/31/2024]
Abstract
Despite improvements in survival after illnesses requiring extracorporeal life support, cerebral injury continues to hinder successful outcomes. Cerebral autoregulation (CA) is an innate protective mechanism that maintains constant cerebral blood flow in the face of varying systemic blood pressure. However, it is impaired in certain disease states and, potentially, following initiation of extracorporeal circulatory support. In this review, we first discuss patient-related factors pertaining to venovenous and venoarterial extracorporeal membrane oxygenation (ECMO) and their potential role in CA impairment. Next, we examine factors intrinsic to ECMO that may affect CA, such as cannulation, changes in pulsatility, the inflammatory and adaptive immune response, intracranial hemorrhage, and ischemic stroke, in addition to ECMO management factors, such as oxygenation, ventilation, flow rates, and blood pressure management. We highlight potential mechanisms that lead to disruption of CA in both pediatric and adult populations, the challenges of measuring CA in these patients, and potential associations with neurological outcome. Altogether, we discuss individualized CA monitoring as a potential target for improving neurological outcomes in extracorporeal life support.
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Affiliation(s)
- Nolan Chalifoux
- Department of Clinical Sciences and Advanced Medicine, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA.
- Department of Anesthesiology and Critical Care Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA.
- Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA.
| | - Tiffany Ko
- Department of Anesthesiology and Critical Care Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Julia Slovis
- Department of Anesthesiology and Critical Care Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Audrey Spelde
- Department of Anesthesiology and Critical Care Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Todd Kilbaugh
- Department of Anesthesiology and Critical Care Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Constantine D Mavroudis
- Division of Cardiothoracic Surgery, Children's Hospital of Philadelphia, Philadelphia, PA, 19104, USA
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Appavu B, Riviello JJ. Multimodal neuromonitoring in the pediatric intensive care unit. Semin Pediatr Neurol 2024; 49:101117. [PMID: 38677796 DOI: 10.1016/j.spen.2024.101117] [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] [Received: 11/28/2023] [Revised: 01/23/2024] [Accepted: 01/28/2024] [Indexed: 04/29/2024]
Abstract
Neuromonitoring is used to assess the central nervous system in the intensive care unit. The purpose of neuromonitoring is to detect neurologic deterioration and intervene to prevent irreversible nervous system dysfunction. Neuromonitoring starts with the standard neurologic examination, which may lag behind the pathophysiologic changes. Additional modalities including continuous electroencephalography (CEEG), multiple physiologic parameters, and structural neuroimaging may detect changes earlier. Multimodal neuromonitoring now refers to an integrated combination and display of non-invasive and invasive modalities, permitting tailored treatment for the individual patient. This chapter reviews the non-invasive and invasive modalities used in pediatric neurocritical care.
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Affiliation(s)
- Brian Appavu
- Clinical Assistant Professor of Child Health and Neurology, University of Arizona School of Medicine-Phoenix, Barrow Neurological Institute at Phoenix Children's, 1919 E. Thomas Road, Ambulatory Building B, 3rd Floor, Phoenix, AZ 85016, United States.
| | - James J Riviello
- Associate Division Chief for Epilepsy, Neurophysiology, and Neurocritical Care, Division of Pediatric Neurology and Developmental Neuroscience, Department of Pediatrics, Professor of Pediatrics and Neurology, Baylor College of Medicine, Texas Children's Hospital, Houston, TX 77030, United States
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8
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Hanalioglu D, Temkit M'H, Hildebrandt K, MackDiaz E, Goldstein Z, Aggarwal S, Appavu B. Neurophysiologic Features Reflecting Brain Injury During Pediatric ECMO Support. Neurocrit Care 2024; 40:759-768. [PMID: 37697125 PMCID: PMC10959789 DOI: 10.1007/s12028-023-01836-9] [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] [Received: 05/01/2023] [Accepted: 08/08/2023] [Indexed: 09/13/2023]
Abstract
BACKGROUND Extracorporeal membrane oxygenation (ECMO) provides lifesaving support to critically ill patients who experience refractory cardiopulmonary failure but carries a high risk for acute brain injury. We aimed to identify characteristics reflecting acute brain injury in children requiring ECMO support. METHODS This is a prospective observational study from 2019 to 2022 of pediatric ECMO patients undergoing neuromonitoring, including continuous electroencephalography, cerebral oximetry, and transcranial Doppler ultrasound (TCD). The primary outcome was acute brain injury. Clinical and neuromonitoring characteristics were collected. Multivariate logistic regression was implemented to model odds ratios (ORs) and identify the combined characteristics that best discriminate risk of acute brain injury using the area under the receiver operating characteristic curve. RESULTS Seventy-five pediatric patients requiring ECMO support were enrolled in this study, and 62 underwent neuroimaging or autopsy evaluations. Of these 62 patients, 19 experienced acute brain injury (30.6%), including seven (36.8%) with arterial ischemic stroke, four (21.1%) with hemorrhagic stroke, seven with hypoxic-ischemic brain injury (36.8%), and one (5.3%) with both arterial ischemic stroke and hypoxic-ischemic brain injury. A univariate analysis demonstrated acute brain injury to be associated with maximum hourly seizure burden (p = 0.021), electroencephalographic suppression percentage (p = 0.022), increased interhemispheric differences in electroencephalographic total power (p = 0.023) and amplitude (p = 0.017), and increased differences in TCD Thrombolysis in Brain Ischemia (TIBI) scores between bilateral middle cerebral arteries (p = 0.023). Best subset model selection identified increased seizure burden (OR = 2.07, partial R2 = 0.48, p = 0.013), increased quantitative electroencephalographic interhemispheric amplitude differences (OR = 2.41, partial R2 = 0.48, p = 0.013), and increased interhemispheric TCD TIBI score differences (OR = 4.66, partial R2 = 0.49, p = 0.006) to be independently associated with acute brain injury (area under the receiver operating characteristic curve = 0.92). CONCLUSIONS Increased seizure burden and increased interhemispheric differences in both quantitative electroencephalographic amplitude and TCD MCA TIBI scores are independently associated with acute brain injury in children undergoing ECMO support.
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Affiliation(s)
- Damla Hanalioglu
- Division of Neurology, Department of Neuroscience, Barrow Neurological Institute at Phoenix Children's Hospital, 1919 E Thomas Rd, Phoenix, AZ, 85016, USA
| | - M 'Hamed Temkit
- Division of Neurology, Department of Neuroscience, Barrow Neurological Institute at Phoenix Children's Hospital, 1919 E Thomas Rd, Phoenix, AZ, 85016, USA
| | - Kara Hildebrandt
- Division of Neurology, Department of Neuroscience, Barrow Neurological Institute at Phoenix Children's Hospital, 1919 E Thomas Rd, Phoenix, AZ, 85016, USA
| | - Elizabeth MackDiaz
- Department of Pediatrics, Medical University of South Carolina, Charleston, SC, USA
| | - Zachary Goldstein
- Division of Neurology, Department of Neuroscience, Barrow Neurological Institute at Phoenix Children's Hospital, 1919 E Thomas Rd, Phoenix, AZ, 85016, USA
| | - Shefali Aggarwal
- Division of Neurology, Department of Neuroscience, Barrow Neurological Institute at Phoenix Children's Hospital, 1919 E Thomas Rd, Phoenix, AZ, 85016, USA
| | - Brian Appavu
- Division of Neurology, Department of Neuroscience, Barrow Neurological Institute at Phoenix Children's Hospital, 1919 E Thomas Rd, Phoenix, AZ, 85016, USA.
- Department of Child Health, The University of Arizona College of Medicine - Phoenix, Phoenix, AZ, USA.
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Tabone L, El-Tannoury J, Levy M, Sauthier M, Joram N, Du Pont-Thibodeau G, Bourgoin P, Al-Omar S, Poirier N, Emeriaud G, Thibault C. Determining Optimal Mean Arterial Blood Pressure Based on Cerebral Autoregulation in Children after Cardiac Surgery. Pediatr Cardiol 2024; 45:81-91. [PMID: 37945783 DOI: 10.1007/s00246-023-03326-3] [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: 05/26/2023] [Accepted: 10/10/2023] [Indexed: 11/12/2023]
Abstract
To evaluate the feasibility of continuous determination of the optimal mean arterial blood pressure (opt-MAP) according to cerebral autoregulation and to describe the opt-MAP, the autoregulation limits, and the time spent outside these limits in children within 48 h of cardiac surgery. Cerebral autoregulation was assessed using the correlation coefficient (COx) between cerebral oxygenation and MAP in children following cardiac surgery. Plots depicting the COx according to the MAP were used to determine the opt-MAP using weighted multiple time windows. For each patient, we estimated (1) the time spent with MAP outside the autoregulation limits and (2) the burden of deviation, defined as the area between the MAP curve and the autoregulation limits when the MAP was outside these limits. Fifty-one patients with a median age of 7.1 (IQR 0.7-52.0) months old were included. The opt-MAP was calculated for 94% (IQR 90-96) of the monitored time. The opt-MAP was significantly lower in neonates < 1 month old. The patients spent 24% (18-31) of the time outside of the autoregulation limits, with no significant differences between age groups. Continuous determination of the opt-MAP is feasible in children within the first 48 h following cardiac surgery.
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Affiliation(s)
- Laurence Tabone
- Division of Critical Care Medicine, Department of Pediatrics, CHU Sainte-Justine, Université de Montréal, Montreal, QC, Canada
- Pediatric Intensive Care Unit and Pediatric Emergency Department, CHU Clocheville, Tours, France
| | - Jihad El-Tannoury
- Research Center, CHU Sainte-Justine, Université de Montréal, Montreal, QC, Canada
| | - Michael Levy
- Pediatric Intensive Care Unit, CHU Robert Debré, Paris, France
| | - Michael Sauthier
- Division of Critical Care Medicine, Department of Pediatrics, CHU Sainte-Justine, Université de Montréal, Montreal, QC, Canada
- Research Center, CHU Sainte-Justine, Université de Montréal, Montreal, QC, Canada
| | - Nicolas Joram
- Pediatric Intensive Care Unit, CHU de Nantes, Nantes, France
| | - Geneviève Du Pont-Thibodeau
- Division of Critical Care Medicine, Department of Pediatrics, CHU Sainte-Justine, Université de Montréal, Montreal, QC, Canada
- Research Center, CHU Sainte-Justine, Université de Montréal, Montreal, QC, Canada
| | - Pierre Bourgoin
- Pediatric Intensive Care Unit, CHU de Nantes, Nantes, France
| | - Sally Al-Omar
- Research Center, CHU Sainte-Justine, Université de Montréal, Montreal, QC, Canada
| | - Nancy Poirier
- Department of Cardiac Surgery, CHU Sainte-Justine, Université de Montréal, Montreal, QC, Canada
| | - Guillaume Emeriaud
- Division of Critical Care Medicine, Department of Pediatrics, CHU Sainte-Justine, Université de Montréal, Montreal, QC, Canada
- Research Center, CHU Sainte-Justine, Université de Montréal, Montreal, QC, Canada
| | - Céline Thibault
- Division of Critical Care Medicine, Department of Pediatrics, CHU Sainte-Justine, Université de Montréal, Montreal, QC, Canada.
- Research Center, CHU Sainte-Justine, Université de Montréal, Montreal, QC, Canada.
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10
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Felling RJ, Kamerkar A, Friedman ML, Said AS, LaRovere KL, Bell MJ, Bembea MM. Neuromonitoring During ECMO Support in Children. Neurocrit Care 2023; 39:701-713. [PMID: 36720837 DOI: 10.1007/s12028-023-01675-8] [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] [Received: 07/15/2022] [Accepted: 01/10/2023] [Indexed: 02/02/2023]
Abstract
Extracorporeal membrane oxygenation is a potentially lifesaving intervention for children with severe cardiac or respiratory failure. It is used with increasing frequency and in increasingly more complex and severe diseases. Neurological injuries are important causes of morbidity and mortality in children treated with extracorporeal membrane oxygenation and include ischemic stroke, intracranial hemorrhage, hypoxic-ischemic injury, and seizures. In this review, we discuss the epidemiology and pathophysiology of neurological injury in patients supported with extracorporeal membrane oxygenation, and we review the current state of knowledge for available modalities of monitoring neurological function in these children. These include structural imaging with computed tomography and ultrasound, cerebral blood flow monitoring with near-infrared spectroscopy and transcranial Doppler ultrasound, and physiological monitoring with electroencephalography and plasma biomarkers. We highlight areas of need and emerging advances that will improve our understanding of neurological injury related to extracorporeal membrane oxygenation and help to reduce the burden of neurological sequelae in these children.
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Affiliation(s)
- Ryan J Felling
- Department of Neurology, Johns Hopkins University School of Medicine, 200 N. Wolfe Street, Suite 2158, Baltimore, MD, USA.
| | - Asavari Kamerkar
- Department of Anesthesia Critical Care Medicine, Children's Hospital Los Angeles, Los Angeles, CA, USA
| | - Matthew L Friedman
- Division of Pediatric Critical Care, Indiana School of Medicine, Indianapolis, IN, USA
| | - Ahmed S Said
- Division of Pediatric Critical Care, Department of Pediatrics, Washington University in St. Louis School of Medicine, St. Louis, MO, USA
| | - Kerri L LaRovere
- Department of Neurology, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA
| | - Michael J Bell
- Division of Critical Care Medicine, Department of Pediatrics, Children's National Medical Center, Washington, DC, USA
| | - Melania M Bembea
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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11
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Sarwal A, Robba C, Venegas C, Ziai W, Czosnyka M, Sharma D. Are We Ready for Clinical Therapy based on Cerebral Autoregulation? A Pro-con Debate. Neurocrit Care 2023; 39:269-283. [PMID: 37165296 DOI: 10.1007/s12028-023-01741-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 04/19/2023] [Indexed: 05/12/2023]
Abstract
Cerebral autoregulation (CA) is a physiological mechanism that maintains constant cerebral blood flow regardless of changes in cerebral perfusion pressure and prevents brain damage caused by hypoperfusion or hyperperfusion. In recent decades, researchers have investigated the range of systemic blood pressures and clinical management strategies over which cerebral vasculature modifies intracranial hemodynamics to maintain cerebral perfusion. However, proposed clinical interventions to optimize autoregulation status have not demonstrated clear clinical benefit. As future trials are designed, it is crucial to comprehend the underlying cause of our inability to produce robust clinical evidence supporting the concept of CA-targeted management. This article examines the technological advances in monitoring techniques and the accuracy of continuous assessment of autoregulation techniques used in intraoperative and intensive care settings today. It also examines how increasing knowledge of CA from recent clinical trials contributes to a greater understanding of secondary brain injury in many disease processes, despite the fact that the lack of robust evidence influencing outcomes has prevented the translation of CA-guided algorithms into clinical practice.
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Affiliation(s)
- Aarti Sarwal
- Atrium Wake Forest School of Medicine, Winston-Salem, NC, USA.
| | | | - Carla Venegas
- Mayo Clinic School of Medicine, Jacksonville, FL, USA
| | - Wendy Ziai
- Johns Hopkins University School of Medicine and Johns Hopkins Bayview Medical Center, Baltimore, MD, USA
| | - Marek Czosnyka
- Division of Neurosurgery, Cambridge University Hospital, Cambridge, UK
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12
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Zhang LQ, Chang H, Kalra A, Humayun M, Rosenblatt KR, Shah VA, Geocadin RG, Brown CH, Kim BS, Whitman GJR, Rivera-Lara L, Cho SM. Continuous Monitoring of Cerebral Autoregulation in Adults Supported by Extracorporeal Membrane Oxygenation. RESEARCH SQUARE 2023:rs.3.rs-3300834. [PMID: 37790309 PMCID: PMC10543291 DOI: 10.21203/rs.3.rs-3300834/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
Background Impaired cerebral autoregulation (CA) is one of several proposed mechanisms of acute brain injury in patients supported by extracorporeal membrane oxygenation (ECMO). The primary aim of this study was to determine the feasibility of continuous CA monitoring in adult ECMO patients. Our secondary aims were to describe changes in cerebral oximetry index (COx) and other metrics of CA over time and in relation to functional neurologic outcomes. Methods This is a single-center prospective observational study. We measured Cox, a surrogate measurement of cerebral blood flow, measured by near-infrared spectroscopy, which is an index of CA derived from the moving correlation between mean arterial pressure and slow waves of regional cerebral oxygen saturation. A COx value that approaches 1 indicates impaired CA. Using COx, we determined the optimal MAP (MAPOPT), lower and upper limits of autoregulation for individual patients. These measurements were examined in relation to modified Rankin Scale (mRS) scores. Results Fifteen patients (median age=57 years [IQR=47-69]) with 150 autoregulation measurements were included for analysis. Eleven were on veno-arterial ECMO and 4 on veno-venous. Mean COx was higher on post-cannulation day 1 than on day 2 (0.2 vs 0.09, p<0.01), indicating improved CA over time. COx was higher in VA-ECMO patients than in VV-ECMO (0.12 vs 0.06, p=0.04). Median MAPOPT for entire cohort was highly variable, ranging 55-110 mmHg. Patients with mRS 0-3 (good outcome) at 3 and 6 months spent less time outside of MAPOPT compared to patients with mRS 4-6 (poor outcome) (74% vs 82%, p=0.01). The percentage of time when observed MAP was outside the limits of autoregulation was higher on post-cannulation day 1 than on day 2 (18.2% vs 3.3%, p<0.01). Conclusions In ECMO patients, it is feasible to monitor CA continuously at the bedside. CA improved over time, most significantly between post-cannulation days 1 and 2. CA was more impaired in VA-ECMO than VV-ECMO. Spending less time outside of MAPOPT may be associated with achieving a good neurologic outcome.
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Affiliation(s)
- Lucy Q Zhang
- Johns Hopkins School of Medicine: The Johns Hopkins University School of Medicine
| | - Henry Chang
- Johns Hopkins School of Medicine: The Johns Hopkins University School of Medicine
| | - Andrew Kalra
- Johns Hopkins School of Medicine: The Johns Hopkins University School of Medicine
| | - Mariyam Humayun
- Johns Hopkins School of Medicine: The Johns Hopkins University School of Medicine
| | - Kathryn R Rosenblatt
- Johns Hopkins School of Medicine: The Johns Hopkins University School of Medicine
| | - Vishank A Shah
- Johns Hopkins School of Medicine: The Johns Hopkins University School of Medicine
| | | | - Charles H Brown
- Johns Hopkins School of Medicine: The Johns Hopkins University School of Medicine
| | - Bo Soo Kim
- Johns Hopkins School of Medicine: The Johns Hopkins University School of Medicine
| | - Glenn J R Whitman
- Johns Hopkins School of Medicine: The Johns Hopkins University School of Medicine
| | - Lucia Rivera-Lara
- Stanford University Department of Neurology and Neurological Sciences
| | - Sung-Min Cho
- Johns Hopkins Department of Anesthesiology and Critical Care Medicine: Johns Hopkins Medicine Department of Anesthesiology and Critical Care Medicine
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13
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Marchetto L, Alshammari H, Todd M, Guerguerian AM. It All Circles Back to Cerebral Autoregulation: Understanding the Risk of Hypocapnia and Arterial Hypertension When Initialing Pediatric Extracorporeal Membrane Oxygenation. Pediatr Crit Care Med 2023; 24:614-617. [PMID: 37409897 DOI: 10.1097/pcc.0000000000003290] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/07/2023]
Affiliation(s)
- Luca Marchetto
- SickKids ECLS Program, Department of Critical Care Medicine, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Hadeel Alshammari
- SickKids ECLS Program, Department of Critical Care Medicine, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Mark Todd
- SickKids ECLS Program, Departments of Critical Care Medicine and Respiratory Therapy, The Hospital for Sick Children, Toronto, ON, Canada
| | - Anne-Marie Guerguerian
- SickKids ECLS Program, Department of Critical Care Medicine, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
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14
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Kochar A, Hildebrandt K, Silverstein R, Appavu B. Approaches to neuroprotection in pediatric neurocritical care. World J Crit Care Med 2023; 12:116-129. [PMID: 37397588 PMCID: PMC10308339 DOI: 10.5492/wjccm.v12.i3.116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 03/30/2023] [Accepted: 04/12/2023] [Indexed: 06/08/2023] Open
Abstract
Acute neurologic injuries represent a common cause of morbidity and mortality in children presenting to the pediatric intensive care unit. After primary neurologic insults, there may be cerebral brain tissue that remains at risk of secondary insults, which can lead to worsening neurologic injury and unfavorable outcomes. A fundamental goal of pediatric neurocritical care is to mitigate the impact of secondary neurologic injury and improve neurologic outcomes for critically ill children. This review describes the physiologic framework by which strategies in pediatric neurocritical care are designed to reduce the impact of secondary brain injury and improve functional outcomes. Here, we present current and emerging strategies for optimizing neuroprotective strategies in critically ill children.
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Affiliation(s)
- Angad Kochar
- Department of Neurosciences, Phoenix Children's Hospital, Phoenix, AZ 85213, United States
| | - Kara Hildebrandt
- Department of Neurosciences, Phoenix Children's Hospital, Phoenix, AZ 85213, United States
| | - Rebecca Silverstein
- Department of Neurosciences, Phoenix Children's Hospital, Phoenix, AZ 85213, United States
| | - Brian Appavu
- Department of Neurosciences, Phoenix Children's Hospital, Phoenix, AZ 85213, United States
- Child Health, University of Arizona College of Medicine - Phoenix, Phoenix, AZ 85016, United States
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15
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Justice CN, Halperin HR, Vanden Hoek TL, Geocadin RG. Extracorporeal cardiopulmonary resuscitation (eCPR) and cerebral perfusion: A narrative review. Resuscitation 2023; 182:109671. [PMID: 36549433 PMCID: PMC9877198 DOI: 10.1016/j.resuscitation.2022.12.009] [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] [Received: 10/09/2022] [Revised: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
Extracorporeal cardiopulmonary resuscitation (eCPR) is emerging as an effective, lifesaving resuscitation strategy for select patients with prolonged or refractory cardiac arrest. Currently, a paucity of evidence-based recommendations is available to guide clinical management of eCPR patients. Despite promising results from initial clinical trials, neurological injury remains a significant cause of morbidity and mortality. Neuropathology associated with utilization of an extracorporeal circuit may interact significantly with the consequences of a prolonged low-flow state that typically precedes eCPR. In this narrative review, we explore current gaps in knowledge about cerebral perfusion over the course of cardiac arrest and resuscitation with a focus on patients treated with eCPR. We found no studies which investigated regional cerebral blood flow or cerebral autoregulation in human cohorts specific to eCPR. Studies which assessed cerebral perfusion in clinical eCPR were small and limited to near-infrared spectroscopy. Furthermore, no studies prospectively or retrospectively evaluated the relationship between epinephrine and neurological outcomes in eCPR patients. In summary, the field currently lacks a comprehensive understanding of how regional cerebral perfusion and cerebral autoregulation are temporally modified by factors such as pre-eCPR low-flow duration, vasopressors, and circuit flow rate. Elucidating these critical relationships may inform future strategies aimed at improving neurological outcomes in patients treated with lifesaving eCPR.
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Affiliation(s)
- Cody N Justice
- Center for Advanced Resuscitation Medicine, Department of Emergency Medicine, Center for Cardiovascular Research, University of Illinois at Chicago, Chicago, IL USA
| | - Henry R Halperin
- Departments of Medicine, Radiology and Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Terry L Vanden Hoek
- Center for Advanced Resuscitation Medicine, Department of Emergency Medicine, Center for Cardiovascular Research, University of Illinois at Chicago, Chicago, IL USA
| | - Romergryko G Geocadin
- Departments of Neurology, Anesthesiology-Critical Care Medicine, and Neurosurgery, Johns Hopkins University, Baltimore, MD, USA.
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16
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Chegondi M, Lin WC, Naqvi S, Sendi P, Totapally BR. The Effect of Electroencephalography Abnormalities on Cerebral Autoregulation in Sedated Ventilated Children. Pediatr Rep 2022; 15:9-15. [PMID: 36649002 PMCID: PMC9844431 DOI: 10.3390/pediatric15010002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 12/05/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
Purpose: To determine the effects of non-ictal electroencephalogram (EEG) changes on cerebrovascular autoregulation (AR) using the cerebral oximetry index (COx). Materials and Methods: Mean arterial blood pressure (MAP), cerebral tissue oxygenation (CrSO2), and EEG were acquired for 96 h. From all of the EEG recordings, 30 min recording segments were extracted using the endotracheal suction events as the guide. EEG recordings were classified as EEG normal and EEG abnormal groups. Each 30 min segment was further divided into six 5 min epochs. Continuous recordings of MAP and CrSO2 by near-infrared spectroscopy (NIRS) were extracted. The COx value was defined as the concordance (R) value of the Pearson correlation between MAP and CrSO2 in a 5 min epoch. Then, an Independent-Samples Mann-Whitney U test was used to analyze the number of epochs within the 30 min segments above various R cutoff values (0.2, 0.3, and 0.4) in normal and abnormal EEG groups. A p-value < 0.05 was considered significant, and all analyses were two-tailed. Results: Among 16 sedated, mechanically ventilated children, 382 EEG recordings of 30 min segments were analyzed. The proportions of epochs in each 30 min segment above the R cutoff values were similar between the EEG normal and EEG abnormal groups (p > 0.05). The median concordance values for CSrO2 and MAP in EEG normal and EEG abnormal groups were similar (0.26 (0.17−0.35) and 0.18 (0.12−0.31); p = 0.09). Conclusions: Abnormal EEG patterns without ictal changes do not affect cerebrovascular autoregulation in sedated and mechanically ventilated children.
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Affiliation(s)
- Madhuradhar Chegondi
- Division of Critical Care Medicine, Stead Family Children’s Hospital, Iowa City, IA 52242, USA
- Department of Pediatrics, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
- Correspondence: ; Tex.: +1-319-356-1615; Fax: +1-319-356-8443
| | - Wei-Chiang Lin
- Department of Biomedical Engineering, Florida International University, Miami, FL 33174, USA
| | - Sayed Naqvi
- Department of Neurology, Nicklaus Children’s Hospital, Miami, FL 33155, USA
| | - Prithvi Sendi
- Division of Critical Care Medicine, Nicklaus Children’s Hospital, Miami, FL 33155, USA
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA
| | - Balagangadhar R. Totapally
- Division of Critical Care Medicine, Nicklaus Children’s Hospital, Miami, FL 33155, USA
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA
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17
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Zipfel J, Wikidal B, Schwaneberg B, Schuhmann MU, Magunia H, Hofbeck M, Schlensak C, Schmid S, Neunhoeffer F. Identifying the optimal blood pressure for cerebral autoregulation in infants after cardiac surgery by monitoring cerebrovascular reactivity-A pilot study. Paediatr Anaesth 2022; 32:1320-1329. [PMID: 36083106 DOI: 10.1111/pan.14555] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 08/13/2022] [Accepted: 09/05/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Advances in the treatment of pediatric congenital heart disease have increased survival rates. Despite efforts to prevent neurological injury, many patients suffer from impaired neurodevelopmental outcomes. Compromised cerebral autoregulation can increase the risk of brain injury following pediatric cardiac surgery with cardiopulmonary bypass. Monitoring autoregulation and maintaining adequate cerebral blood flow can help prevent neurological injury. AIMS Our objective was to evaluate autoregulation parameters and to define the optimal blood pressure as well as the lower and upper blood pressure limits of autoregulation. METHODS Autoregulation was monitored prospectively in 36 infants after cardiopulmonary bypass surgery for congenital heart defects between January and December 2019. Autoregulation indices were calculated by correlating invasive arterial blood pressure, cortical oxygen saturation, and relative tissue hemoglobin levels with near-infrared spectroscopy parameters. RESULTS The mean patient age was 4.1 ± 2.8 months, and the mean patient weight was 5.2 ± 1.8 kg. Optimal mean arterial pressure could be identified in 88.9% of patients via the hemoglobin volume index and in 91.7% of patients via the cerebral oxygenation index, and a lower limit of autoregulation could be found in 66.7% and 63.9% of patients, respectively. No significant changes in autoregulation indices at the beginning or end of the monitoring period were observed. In 76.5% ± 11.1% and 83.8% ± 9.9% of the 8 and 16 h monitoring times, respectively, the mean blood pressure was inside the range of intact autoregulation (below in 21.5% ± 25.4% and 11.3% ± 16.5% and above in 8.7% ± 10.4% and 6.0% ± 11.0%, respectively). The mean optimal blood pressure was 57.4 ± 8.7 mmHg and 58.2 ± 7.9 mmHg and the mean lower limit of autoregulation was 48.8 ± 8.3 mmHg and 45.5 ± 6.7 mmHg when generated via the hemoglobin volume index and cerebral oxygenation index, respectively. CONCLUSIONS Postoperative noninvasive autoregulation monitoring after cardiac surgery in children can be reliably and safely performed using the hemoglobin volume index and cerebral oxygenation index and provides robust data. This monitoring can be used to identify individual hemodynamic targets to optimize autoregulation, which differs from those recommended in the literature. Further evaluation of this subject is needed.
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Affiliation(s)
- Julian Zipfel
- Section of Paediatric Neurosurgery, Department of Neurosurgery, University of Tuebingen, Tuebingen, Germany
| | - Berit Wikidal
- Paediatric Intensive Care Unit, University Children's Hospital of Tuebingen, Tuebingen, Germany
| | - Bernadett Schwaneberg
- Paediatric Intensive Care Unit, University Children's Hospital of Tuebingen, Tuebingen, Germany
| | - Martin U Schuhmann
- Section of Paediatric Neurosurgery, Department of Neurosurgery, University of Tuebingen, Tuebingen, Germany
| | - Harry Magunia
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital Tübingen, Eberhard-Karls-University Tuebingen, Tuebingen, Germany
| | - Michael Hofbeck
- Paediatric Intensive Care Unit, University Children's Hospital of Tuebingen, Tuebingen, Germany
| | - Christian Schlensak
- Department of Thoracic and Cardiovascular Surgery, University of Tuebingen, Tuebingen, Germany
| | - Simon Schmid
- Paediatric Intensive Care Unit, University Children's Hospital of Tuebingen, Tuebingen, Germany
| | - Felix Neunhoeffer
- Paediatric Intensive Care Unit, University Children's Hospital of Tuebingen, Tuebingen, Germany
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18
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Tierradentro-Garcia LO, Stern JA, Dennis R, Hwang M. Utility of Cerebral Microvascular Imaging in Infants Undergoing ECMO. CHILDREN (BASEL, SWITZERLAND) 2022; 9:1827. [PMID: 36553271 PMCID: PMC9776869 DOI: 10.3390/children9121827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/18/2022] [Accepted: 11/20/2022] [Indexed: 11/29/2022]
Abstract
PURPOSE Infants who require extracorporeal membrane oxygenation (ECMO) therapy have an increased risk of neurological complications and mortality. Microvascular imaging (MVI) is an advanced Doppler technique that allows high-resolution visualization of microvasculature in the brain. We describe the feasibility and utility of MVI for the evaluation of cerebral microvascular perfusion in patients undergoing ECMO. METHODS We retrospectively analyzed brain MVI scans of neonates undergoing ECMO. Two pediatric radiologists qualitatively assessed MVI scans to determine the presence or absence of tortuosity, symmetry, heterogeneity, engorgement, and hypoperfusion of the basal ganglia-thalamus (BGT) region, as well as the presence or absence of white matter vascular engorgement and increased peri-gyral flow in the cortex. We tested the association between the presence of the aforementioned brain MVI features and clinical outcomes. RESULTS We included 30 patients, 14 of which were male (46.7%). The time of ECMO duration was 11.8 ± 6.9 days. The most prevalent microvascular finding in BGT was lenticulostriate vessel tortuosity (26/30, 86.7%), and the most common microvascular finding in the cortex was increased peri-gyral flow (10/24, 41.7%). Cortical white matter vascular engorgement was significantly associated with the presence of any poor outcome as defined by death, seizure, and/or cerebrovascular events on magnetic resonance imaging (p = 0.03). CONCLUSION MVI is a feasible modality to evaluate cerebral perfusion in infants undergoing ECMO. Additionally, evidence of white matter vascular engorgement after ECMO cannulation could serve as a predictor of poor outcomes in this population.
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Affiliation(s)
| | - Joseph A. Stern
- Department of Pediatric Radiology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Rebecca Dennis
- Department of Pediatric Radiology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Misun Hwang
- Department of Pediatric Radiology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
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19
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Association Between Early Change in Arterial Carbon Dioxide Tension and Outcomes in Neonates Treated by Extracorporeal Membrane Oxygenation. ASAIO J 2022; 69:411-416. [PMID: 36730940 PMCID: PMC10044589 DOI: 10.1097/mat.0000000000001838] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The primary objective was to investigate the association between partial pressure of carbon dioxide (PaCO2) change after extracorporeal membrane oxygenation (ECMO) initiation and neurologic outcome in neonates treated for respiratory failure. A retrospective analysis of the Extracorporeal Life Support Organization (ELSO) database including newborns supported by ECMO for respiratory indication during 2015-2020. The closest Pre-ECMO (Pre-ECMO PaCO2) and at 24 hours after ECMO initiation (H24 PaCO2) PaCO2 values allowed to calculate the relative change in PaCO2 (Rel Δ PaCO2 = [H24 PaCO2 - Pre-ECMO PaCO2]/Pre-ECMO PaCO2). The primary outcome was the onset of any acute neurologic event (ANE), defined as cerebral bleeding, ischemic stroke, clinical or electrical seizure, or brain death during ECMO. We included 3,583 newborns (median age 1 day [interquartile range {IQR}, 1-3], median weight 3.2 kg [IQR, 2.8-3.6]) from 198 ELSO centers. The median Rel Δ PaCO2 value was -29.9% [IQR, -46.2 to -8.5]. Six hundred nine (17%) of them had ANE (405 cerebral bleedings, 111 ischemic strokes, 225 seizures, and 6 brain deaths). Patients with a decrease of PaCO2 > 50% were more likely to develop ANE than others (odds ratio [OR] 1.78, 95% confidence interval [CI], 1.31-2.42, p < 0.001). This was still observed after adjustment for all clinically relevant confounding factors (adjusted OR 1.94, 95% CI, 1.29-2.92, p = 0.001). A significant decrease in PaCO2 after ECMO start is associated with ANE among neonates requiring ECMO for respiratory failure. Cautious PaCO2 decrease should be considered after start of ECMO therapy.
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Czosnyka M, Santarius T, Donnelly J, van den Dool REC, Sperna Weiland NH. Pro-Con Debate: The Clinical (Ir)relevance of the Lower Limit of Cerebral Autoregulation for Anesthesiologists. Anesth Analg 2022; 135:734-743. [DOI: 10.1213/ane.0000000000006123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Stroke in pediatric ECMO: a target for prevention and improvement. Pediatr Res 2022; 92:629-630. [PMID: 35906305 DOI: 10.1038/s41390-022-02199-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 06/28/2022] [Indexed: 11/08/2022]
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22
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Ayaz H, Baker WB, Blaney G, Boas DA, Bortfeld H, Brady K, Brake J, Brigadoi S, Buckley EM, Carp SA, Cooper RJ, Cowdrick KR, Culver JP, Dan I, Dehghani H, Devor A, Durduran T, Eggebrecht AT, Emberson LL, Fang Q, Fantini S, Franceschini MA, Fischer JB, Gervain J, Hirsch J, Hong KS, Horstmeyer R, Kainerstorfer JM, Ko TS, Licht DJ, Liebert A, Luke R, Lynch JM, Mesquida J, Mesquita RC, Naseer N, Novi SL, Orihuela-Espina F, O’Sullivan TD, Peterka DS, Pifferi A, Pollonini L, Sassaroli A, Sato JR, Scholkmann F, Spinelli L, Srinivasan VJ, St. Lawrence K, Tachtsidis I, Tong Y, Torricelli A, Urner T, Wabnitz H, Wolf M, Wolf U, Xu S, Yang C, Yodh AG, Yücel MA, Zhou W. Optical imaging and spectroscopy for the study of the human brain: status report. NEUROPHOTONICS 2022; 9:S24001. [PMID: 36052058 PMCID: PMC9424749 DOI: 10.1117/1.nph.9.s2.s24001] [Citation(s) in RCA: 55] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
This report is the second part of a comprehensive two-part series aimed at reviewing an extensive and diverse toolkit of novel methods to explore brain health and function. While the first report focused on neurophotonic tools mostly applicable to animal studies, here, we highlight optical spectroscopy and imaging methods relevant to noninvasive human brain studies. We outline current state-of-the-art technologies and software advances, explore the most recent impact of these technologies on neuroscience and clinical applications, identify the areas where innovation is needed, and provide an outlook for the future directions.
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Affiliation(s)
- Hasan Ayaz
- Drexel University, School of Biomedical Engineering, Science, and Health Systems, Philadelphia, Pennsylvania, United States
- Drexel University, College of Arts and Sciences, Department of Psychological and Brain Sciences, Philadelphia, Pennsylvania, United States
| | - Wesley B. Baker
- Children’s Hospital of Philadelphia, Division of Neurology, Philadelphia, Pennsylvania, United States
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, United States
| | - Giles Blaney
- Tufts University, Department of Biomedical Engineering, Medford, Massachusetts, United States
| | - David A. Boas
- Boston University Neurophotonics Center, Boston, Massachusetts, United States
- Boston University, College of Engineering, Department of Biomedical Engineering, Boston, Massachusetts, United States
| | - Heather Bortfeld
- University of California, Merced, Departments of Psychological Sciences and Cognitive and Information Sciences, Merced, California, United States
| | - Kenneth Brady
- Lurie Children’s Hospital, Northwestern University Feinberg School of Medicine, Department of Anesthesiology, Chicago, Illinois, United States
| | - Joshua Brake
- Harvey Mudd College, Department of Engineering, Claremont, California, United States
| | - Sabrina Brigadoi
- University of Padua, Department of Developmental and Social Psychology, Padua, Italy
| | - Erin M. Buckley
- Georgia Institute of Technology, Wallace H. Coulter Department of Biomedical Engineering, Atlanta, Georgia, United States
- Emory University School of Medicine, Department of Pediatrics, Atlanta, Georgia, United States
| | - Stefan A. Carp
- Massachusetts General Hospital, Harvard Medical School, Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, Massachusetts, United States
| | - Robert J. Cooper
- University College London, Department of Medical Physics and Bioengineering, DOT-HUB, London, United Kingdom
| | - Kyle R. Cowdrick
- Georgia Institute of Technology, Wallace H. Coulter Department of Biomedical Engineering, Atlanta, Georgia, United States
| | - Joseph P. Culver
- Washington University School of Medicine, Department of Radiology, St. Louis, Missouri, United States
| | - Ippeita Dan
- Chuo University, Faculty of Science and Engineering, Tokyo, Japan
| | - Hamid Dehghani
- University of Birmingham, School of Computer Science, Birmingham, United Kingdom
| | - Anna Devor
- Boston University, College of Engineering, Department of Biomedical Engineering, Boston, Massachusetts, United States
| | - Turgut Durduran
- ICFO – The Institute of Photonic Sciences, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona, Spain
- Institució Catalana de Recerca I Estudis Avançats (ICREA), Barcelona, Spain
| | - Adam T. Eggebrecht
- Washington University in St. Louis, Mallinckrodt Institute of Radiology, St. Louis, Missouri, United States
| | - Lauren L. Emberson
- University of British Columbia, Department of Psychology, Vancouver, British Columbia, Canada
| | - Qianqian Fang
- Northeastern University, Department of Bioengineering, Boston, Massachusetts, United States
| | - Sergio Fantini
- Tufts University, Department of Biomedical Engineering, Medford, Massachusetts, United States
| | - Maria Angela Franceschini
- Massachusetts General Hospital, Harvard Medical School, Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, Massachusetts, United States
| | - Jonas B. Fischer
- ICFO – The Institute of Photonic Sciences, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona, Spain
| | - Judit Gervain
- University of Padua, Department of Developmental and Social Psychology, Padua, Italy
- Université Paris Cité, CNRS, Integrative Neuroscience and Cognition Center, Paris, France
| | - Joy Hirsch
- Yale School of Medicine, Department of Psychiatry, Neuroscience, and Comparative Medicine, New Haven, Connecticut, United States
- University College London, Department of Medical Physics and Biomedical Engineering, London, United Kingdom
| | - Keum-Shik Hong
- Pusan National University, School of Mechanical Engineering, Busan, Republic of Korea
- Qingdao University, School of Automation, Institute for Future, Qingdao, China
| | - Roarke Horstmeyer
- Duke University, Department of Biomedical Engineering, Durham, North Carolina, United States
- Duke University, Department of Electrical and Computer Engineering, Durham, North Carolina, United States
- Duke University, Department of Physics, Durham, North Carolina, United States
| | - Jana M. Kainerstorfer
- Carnegie Mellon University, Department of Biomedical Engineering, Pittsburgh, Pennsylvania, United States
- Carnegie Mellon University, Neuroscience Institute, Pittsburgh, Pennsylvania, United States
| | - Tiffany S. Ko
- Children’s Hospital of Philadelphia, Division of Cardiothoracic Anesthesiology, Philadelphia, Pennsylvania, United States
| | - Daniel J. Licht
- Children’s Hospital of Philadelphia, Division of Neurology, Philadelphia, Pennsylvania, United States
| | - Adam Liebert
- Polish Academy of Sciences, Nalecz Institute of Biocybernetics and Biomedical Engineering, Warsaw, Poland
| | - Robert Luke
- Macquarie University, Department of Linguistics, Sydney, New South Wales, Australia
- Macquarie University Hearing, Australia Hearing Hub, Sydney, New South Wales, Australia
| | - Jennifer M. Lynch
- Children’s Hospital of Philadelphia, Division of Cardiothoracic Anesthesiology, Philadelphia, Pennsylvania, United States
| | - Jaume Mesquida
- Parc Taulí Hospital Universitari, Critical Care Department, Sabadell, Spain
| | - Rickson C. Mesquita
- University of Campinas, Institute of Physics, Campinas, São Paulo, Brazil
- Brazilian Institute of Neuroscience and Neurotechnology, Campinas, São Paulo, Brazil
| | - Noman Naseer
- Air University, Department of Mechatronics and Biomedical Engineering, Islamabad, Pakistan
| | - Sergio L. Novi
- University of Campinas, Institute of Physics, Campinas, São Paulo, Brazil
- Western University, Department of Physiology and Pharmacology, London, Ontario, Canada
| | | | - Thomas D. O’Sullivan
- University of Notre Dame, Department of Electrical Engineering, Notre Dame, Indiana, United States
| | - Darcy S. Peterka
- Columbia University, Zuckerman Mind Brain Behaviour Institute, New York, United States
| | | | - Luca Pollonini
- University of Houston, Department of Engineering Technology, Houston, Texas, United States
| | - Angelo Sassaroli
- Tufts University, Department of Biomedical Engineering, Medford, Massachusetts, United States
| | - João Ricardo Sato
- Federal University of ABC, Center of Mathematics, Computing and Cognition, São Bernardo do Campo, São Paulo, Brazil
| | - Felix Scholkmann
- University of Bern, Institute of Complementary and Integrative Medicine, Bern, Switzerland
- University of Zurich, University Hospital Zurich, Department of Neonatology, Biomedical Optics Research Laboratory, Zürich, Switzerland
| | - Lorenzo Spinelli
- National Research Council (CNR), IFN – Institute for Photonics and Nanotechnologies, Milan, Italy
| | - Vivek J. Srinivasan
- University of California Davis, Department of Biomedical Engineering, Davis, California, United States
- NYU Langone Health, Department of Ophthalmology, New York, New York, United States
- NYU Langone Health, Department of Radiology, New York, New York, United States
| | - Keith St. Lawrence
- Lawson Health Research Institute, Imaging Program, London, Ontario, Canada
- Western University, Department of Medical Biophysics, London, Ontario, Canada
| | - Ilias Tachtsidis
- University College London, Department of Medical Physics and Biomedical Engineering, London, United Kingdom
| | - Yunjie Tong
- Purdue University, Weldon School of Biomedical Engineering, West Lafayette, Indiana, United States
| | - Alessandro Torricelli
- Politecnico di Milano, Dipartimento di Fisica, Milan, Italy
- National Research Council (CNR), IFN – Institute for Photonics and Nanotechnologies, Milan, Italy
| | - Tara Urner
- Georgia Institute of Technology, Wallace H. Coulter Department of Biomedical Engineering, Atlanta, Georgia, United States
| | - Heidrun Wabnitz
- Physikalisch-Technische Bundesanstalt (PTB), Berlin, Germany
| | - Martin Wolf
- University of Zurich, University Hospital Zurich, Department of Neonatology, Biomedical Optics Research Laboratory, Zürich, Switzerland
| | - Ursula Wolf
- University of Bern, Institute of Complementary and Integrative Medicine, Bern, Switzerland
| | - Shiqi Xu
- Duke University, Department of Biomedical Engineering, Durham, North Carolina, United States
| | - Changhuei Yang
- California Institute of Technology, Department of Electrical Engineering, Pasadena, California, United States
| | - Arjun G. Yodh
- University of Pennsylvania, Department of Physics and Astronomy, Philadelphia, Pennsylvania, United States
| | - Meryem A. Yücel
- Boston University Neurophotonics Center, Boston, Massachusetts, United States
- Boston University, College of Engineering, Department of Biomedical Engineering, Boston, Massachusetts, United States
| | - Wenjun Zhou
- University of California Davis, Department of Biomedical Engineering, Davis, California, United States
- China Jiliang University, College of Optical and Electronic Technology, Hangzhou, Zhejiang, China
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Yu SH, Mao DH, Ju R, Fu YY, Zhang LB, Yue G. ECMO in neonates: The association between cerebral hemodynamics with neurological function. Front Pediatr 2022; 10:908861. [PMID: 36147805 PMCID: PMC9485612 DOI: 10.3389/fped.2022.908861] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/25/2022] [Indexed: 11/20/2022] Open
Abstract
Extracorporeal membrane oxygenation (ECMO) is a superior life support technology, commonly employed in critical patients with severe respiratory or hemodynamic failure to provide effective respiratory and circulatory support, which is especially recommended for the treatment of critical neonates. However, the vascular management of neonates with veno-arterial extracorporeal membrane oxygenation (VA-ECMO) is still under controversy. Reconstruction or ligation for the right common carotid artery (RCCA) after ECMO is inconclusive. This review summarized the existed studies on hemodynamics and neurological function after vascular ligation or reconstruction hoping to provide better strategies for vessel management in newborns after ECMO. After reconstruction, the right cerebral blood flow can increase immediately, and the normal blood supply can be restored rapidly. But the reconstructed vessel may be occluded and stenotic in long-term follow-ups. Ligation may cause lateralization damage, but there could be no significant effect owing to the establishment of collateral circulation. The completion of the circle of Willis, the congenital anomalies of cerebral or cervical vasculature, the duration of ECMO, and the vascular condition at the site of arterial catheterization should be assessed carefully before making the decision. It is also necessary to follow up on the reconstructed vessel sustainability, and the association between cerebral hemodynamics and neurological function requires further large-scale multi-center studies.
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Affiliation(s)
- Shu-Han Yu
- Department of Neonatology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Dan-Hua Mao
- Department of Neonatology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Rong Ju
- Department of Neonatology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Yi-Yong Fu
- Department of Neonatology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Li-Bing Zhang
- Department of Pediatric Surgery, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Guang Yue
- Department of Neonatology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
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Longhitano Y, Iannuzzi F, Bonatti G, Zanza C, Messina A, Godoy D, Dabrowski W, Xiuyun L, Czosnyka M, Pelosi P, Badenes R, Robba C. Cerebral Autoregulation in Non-Brain Injured Patients: A Systematic Review. Front Neurol 2021; 12:732176. [PMID: 34899560 PMCID: PMC8660115 DOI: 10.3389/fneur.2021.732176] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 10/11/2021] [Indexed: 01/12/2023] Open
Abstract
Introduction: Cerebral autoregulation (CA) plays a fundamental role in the maintenance of adequate cerebral blood flow (CBF). CA monitoring, through direct and indirect techniques, may guide an appropriate therapeutic approach aimed at improving CBF and reducing neurological complications; so far, the role of CA has been investigated mainly in brain-injured patients. The aim of this study is to investigate the role of CA in non-brain injured patients. Methods: A systematic consultation of literature was carried out. Search terms included: “CA and sepsis,” “CA and surgery,” and “CA and non-brain injury.” Results: Our research individualized 294 studies and after screening, 22 studies were analyzed in this study. Studies were divided in three groups: CA in sepsis and septic shock, CA during surgery, and CA in the pediatric population. Studies in sepsis and intraoperative setting highlighted a relationship between the incidence of sepsis-associated delirium and impaired CA. The most investigated setting in the pediatric population is cardiac surgery, but the role and measurement of CA need to be further elucidated. Conclusion: In non-brain injured patients, impaired CA may result in cognitive dysfunction, neurological damage, worst outcome, and increased mortality. Monitoring CA might be a useful tool for the bedside optimization and individualization of the clinical management in this group of patients.
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Affiliation(s)
- Yaroslava Longhitano
- Department of Anesthesiology and Critical Care, AO St. Antonio, Biagio and Cesare Arrigo, Alessandria, Italy
| | - Francesca Iannuzzi
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy
| | - Giulia Bonatti
- Anesthesia and Intensive Care, Gaslini Hospital, Genova, Italy
| | - Christian Zanza
- Foundation of "Nuovo Ospedale Alba-Bra" and Department of Emergency Medicine, Anesthesia and Critical Care Division, Michele and Pietro Ferrero Hospital, Verduno, Italy
| | - Antonio Messina
- Humanitas Clinical and Research Center - IRCCS, Milan, Italy.,Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Daniel Godoy
- Neurointensive Care Unit, Sanatorio Pasteur, 2 Intensive Care Unit, Hospital Carlos Malbran, Catamarca, Argentina
| | | | - Li Xiuyun
- Department of Anesthesiology & Critical Care Medicine, John Hopkins University, Baltimore, MD, United States
| | - Marek Czosnyka
- Brain Physics Laboratory, Department of Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom
| | - Paolo Pelosi
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy.,Anesthesia and Critical Care, San Martino Policlinico Hospital, IRCCS for Oncology and Neuroscience, Genoa, Italy
| | - Rafael Badenes
- Department of Anesthesiology and Surgical-Trauma Intensive Care, Hospital Clinic Universitari de Valencia, Department of Surgery, University of Valencia, Valencia, Spain
| | - Chiara Robba
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy.,Anesthesia and Critical Care, San Martino Policlinico Hospital, IRCCS for Oncology and Neuroscience, Genoa, Italy
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25
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Joram N, Beqiri E, Pezzato S, Andrea M, Robba C, Liet JM, Chenouard A, Bourgoin P, Czosnyka M, Léger PL, Smielewski P. Impact of Arterial Carbon Dioxide and Oxygen Content on Cerebral Autoregulation Monitoring Among Children Supported by ECMO. Neurocrit Care 2021; 35:480-490. [PMID: 33686559 DOI: 10.1007/s12028-021-01201-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 01/29/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND Cerebral autoregulation (CA) impairment is associated with neurological complications among children supported by extracorporeal membrane oxygenation (ECMO). Severe variations of arterial CO2 (PaCO2) and O2 (PaO2) tension after ECMO onset are common and associate with mortality and poor neurological outcome. The impact of gas exchange on CA among critically ill patients is poorly studied. METHODS Retrospective analysis of data collected prospectively from 30 children treated with veno-arterial or veno-venous ECMO in the PICU of Nantes University Hospital, France. A correlation coefficient between the variations of regional cerebral oxygen saturation (rSO2) and the variations of mean arterial blood pressure (MAP) was calculated as an index of CA (cerebral oxygenation reactivity index, COx). Cox-MAP plots were investigated allowing determining lower limit of autoregulation (LLA) and upper limit of autoregulation (ULA) limits of autoregulation. Age-based normal blood pressure was used to adjust the MAP, LLA, and ULA data from each patient and then reported as percentage (nMAP, nLLA, and nULA, respectively). RSO2, COx, nMAP, nLLA, and nULA values were averaged over one hour before each arterial blood gas (ABG) sample during ECMO run. RESULTS Thirty children (median age 4.8 months [Interquartile range (IQR) 0.7-39.1], median weight 5 kg [IQR 4-15]) experiencing 31 ECMO runs were included in the study. Three hundred and ninety ABGs were analyzed. The highest values of COx were observed on day 1 (D1) of ECMO. The relationship between COx and PaCO2 was nonlinear, but COx values tended to be lower in case of hypercapnia compared to normocapnia. During the whole ECMO run, a weak but significant correlation between PaCO2 and nULA was observed (R = 0.432, p = 0.02). On D1 of ECMO, this correlation was stronger (R = 0.85, p = 0.03) and a positive correlation between nLLA and PaCO2 was also found (R = 0.726, p < 0.001). A very weak negative correlation between PaO2 and nULA was observed within the whole ECMO run and on D1 of ECMO (R = -0.07 p = 0.04 and R = -0.135 p = <0.001, respectively). The difference between nULA and nLLA representing the span of the autoregulation plateau was positively correlated with PaCO2 and negatively correlated with PaO2 (R = 0.224, p = 0.01 and R = -0.051, p = 0.004, respectively). CONCLUSIONS We observed a complex relationship between PaCO2 and CA, influenced by the level of blood pressure. Hypercapnia seems to be globally protective in normotensive or hypertensive condition, while, in case of very low MAP, hypercapnia may disturb CA as it increases LLA. These data add additional arguments for very cautiously lower PaCO2, especially after ECMO start.
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Affiliation(s)
- Nicolas Joram
- Pediatric Intensive Care Unit, University Hospital of Nantes, Nantes, France. .,Clinical Investigation Center (CIC) 1413, University Hospital of Nantes, Nantes, France. .,INSERM U955-ENVA, University Paris 12, Paris, France.
| | - Erta Beqiri
- Brain Physics Laboratory, Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK.,Department of Physiology and Transplantation, Milan University, Milan, Italy
| | - Stefano Pezzato
- Pediatric Intensive Care Unit, IRCCS Giannina Gaslini Institute, Genoa, Italy
| | - Moscatelli Andrea
- Pediatric Intensive Care Unit, IRCCS Giannina Gaslini Institute, Genoa, Italy
| | - Chiara Robba
- Brain Physics Laboratory, Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK.,Policlinico San Martino IRCCS for Oncology and Neuroscience, Genova, Italy
| | - Jean-Michel Liet
- Pediatric Intensive Care Unit, University Hospital of Nantes, Nantes, France.,Clinical Investigation Center (CIC) 1413, University Hospital of Nantes, Nantes, France
| | - Alexis Chenouard
- Pediatric Intensive Care Unit, University Hospital of Nantes, Nantes, France.,Clinical Investigation Center (CIC) 1413, University Hospital of Nantes, Nantes, France
| | - Pierre Bourgoin
- Pediatric Intensive Care Unit, University Hospital of Nantes, Nantes, France.,Clinical Investigation Center (CIC) 1413, University Hospital of Nantes, Nantes, France
| | - Marek Czosnyka
- Brain Physics Laboratory, Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - Pierre-Louis Léger
- INSERM U955-ENVA, University Paris 12, Paris, France.,Pediatric Intensive Care Unit, Trousseau University Hospital, Paris, France
| | - Peter Smielewski
- Brain Physics Laboratory, Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
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Shah N, Said AS. Extracorporeal Support Prognostication-Time to Move the Goal Posts? MEMBRANES 2021; 11:537. [PMID: 34357187 PMCID: PMC8304743 DOI: 10.3390/membranes11070537] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/12/2021] [Accepted: 07/12/2021] [Indexed: 12/21/2022]
Abstract
Advances in extracorporeal membrane oxygenation (ECMO) technology are associated with expanded indications, increased utilization and improved outcome. There is growing interest in developing ECMO prognostication scores to aid in bedside decision making. To date, the majority of available scores have been limited to mostly registry-based data and with mortality as the main outcome of interest. There continues to be a gap in clinically applicable decision support tools to aid in the timing of ECMO cannulation to improve patients' long-term outcomes. We present a brief review of the commonly available adult and pediatric ECMO prognostication tools, their limitations, and future directions.
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Affiliation(s)
- Neel Shah
- Division of Pediatric Critical Care, Department of Pediatrics, School of Medicine, Washington University in St. Louis, St. Louis, MO 63130, USA;
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