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Young T, Ezzat B, Nichols N, Aydin S, Pastuszko P, Morgenstern PF. Managing medically refractory elevated intracranial pressure in a pediatric patient on ECMO: illustrative case. Childs Nerv Syst 2024:10.1007/s00381-024-06549-8. [PMID: 39046474 DOI: 10.1007/s00381-024-06549-8] [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: 04/12/2024] [Accepted: 07/17/2024] [Indexed: 07/25/2024]
Abstract
PURPOSE We demonstrate the complexities of managing pediatric patients on extracorporeal membrane oxygenation (ECMO) therapy requiring neurosurgery, focusing on systemic anticoagulation, cardiac function, and medically refractory intracranial pressure (ICP). METHODS A 3.5-year-old female with Tetralogy of Fallot developed severe ischemic cerebral edema following post-operative cardiac arrest and required ECMO. This case, along with four additional cases of children requiring neurosurgery while on ECMO, was examined. RESULTS Emergency neurosurgical intervention in the primary case led to significant improvement, highlighting the delicate balance between managing ECMO-induced anticoagulation and urgent neurosurgical needs. The additional cases had variable outcomes, emphasizing the challenges of caring for these critically ill patients. CONCLUSION Successful management of children requiring ECMO support and neurosurgical intervention requires thoughtful multidisciplinary care. This report illustrates some of the nuances in such decision-making, and demonstrates one potential path to a good outcome.
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Affiliation(s)
- Tirone Young
- Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Bahie Ezzat
- Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Noah Nichols
- Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Scott Aydin
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Peter Pastuszko
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Thoracic Surgery, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Peter F Morgenstern
- Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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Feng CY, Kolchinski A, Kapoor S, Khanduja S, Hwang J, Suarez JI, Geocadin RG, Kim BS, Whitman G, Cho SM. Prevalence and Neurological Outcomes of Comatose Patients With Extracorporeal Membrane Oxygenation. J Cardiothorac Vasc Anesth 2024:S1053-0770(24)00449-X. [PMID: 39060155 DOI: 10.1053/j.jvca.2024.07.010] [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: 03/14/2024] [Revised: 07/02/2024] [Accepted: 07/04/2024] [Indexed: 07/28/2024]
Abstract
OBJECTIVES To investigate prevalence, risk factors, and in-hospital outcomes of comatose extracorporeal membrane oxygenation (ECMO) patients. DESIGN Retrospective observational. SETTING Tertiary academic hospital. PARTICIPANTS Adults received venoarterial (VA) or venovenous (VV) ECMO support between November 2017 and April 022. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS We defined 24-hour off sedation as no sedative infusion (except dexmedetomidine) or paralytics administration over a continuous 24-hour period while on ECMO. Off-sedation coma (comaoff) was defined as a Glasgow Coma Scale score of ≤8 after achieving 24-hour off sedation. On-sedation coma (comaon) was defined as a Glasgow Coma Scale score of ≤8 during the entire ECMO course without off sedation for 24 hours. Neurological outcomes were assessed at discharge using the modified Rankin scale (good, 0-3; poor, 4-6). We included 230 patients (VA-ECMO 143, 65% male); 24-hour off sedation was achieved in 32.2% VA-ECMO and 26.4% VV-ECMO patients. Among all patients off sedation for 24 hours (n = 69), 56.5% VA-ECMO and 52.2% VV-ECMO patients experienced comaoff. Among those unable to be sedation free for 24 hours (n = 161), 50.5% VA-ECMO and 17.2% VV-ECMO had comaon. Comaoff was associated with poor outcomes (p < 0.05) in VA-ECMO and VV-ECMO groups, whereas comaon only impacted the VA-ECMO group outcomes. In a multivariable analysis, requirement of renal replacement therapy was an independent risk factor for comaoff after adjusting for ECMO configuration, after adjusting for ECMO configuration, acute brain injury, pre-ECMO partial pressure of oxygen in arterial blood, partial pressure of carbon dioxide in arterial blood, pH, and bicarbonate level (worst value within 24 hours before cannulation). CONCLUSIONS Comaoff was common and associated with poor outcomes at discharge. Requirement of renal replacement therapy was an independent risk factor.
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Affiliation(s)
- Cheng-Yuan Feng
- Division of Neurosciences Critical Care, Departments of Neurology and Neurosurgery, and Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD; Department of Critical Care Medicine and TriHealth Neuroscience Institute, Cincinnati, OH
| | | | - Shrey Kapoor
- Johns Hopkins University School of Medicine, Baltimore, MD
| | - Shivalika Khanduja
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Jaeho Hwang
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Jose I Suarez
- Division of Neurosciences Critical Care, Departments of Neurology and Neurosurgery, and Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Romergryko G Geocadin
- Division of Neurosciences Critical Care, Departments of Neurology and Neurosurgery, and Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Bo Soo Kim
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Glenn Whitman
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Sung-Min Cho
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD; Division of Neurosciences Critical Care, Departments of Neurology and Neurosurgery, and Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD.
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3
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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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Ahmad SA, Kapoor S, Muquit S, Gusdon A, Khanduja S, Ziai W, Everett AD, Whitman G, Cho SM, On Behalf Of Herald Investigators. Brain injury plasma biomarkers in patients on veno-arterial extracorporeal membrane oxygenation: A pilot prospective observational study. Perfusion 2024:2676591241256006. [PMID: 38757156 DOI: 10.1177/02676591241256006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
INTRODUCTION Early diagnosis of acute brain injury (ABI) is critical for patients on veno-arterial extracorporeal membrane oxygenation (V-A ECMO) to guide anticoagulation strategy; however, neurological assessment in ECMO is often limited by patient sedation. METHODS In this pilot study of adults from June 2018 to May 2019, plasma samples of glial fibrillary acidic protein (GFAP), neurofilament light chain (NFL), and tubulin associated unit (Tau) were collected daily after V-A ECMO cannulation and measured using a multiplex platform. Primary outcomes were occurrence of ABI, assessed clinically, and neurologic outcome, assessed by modified Rankin Scale (mRS). RESULTS Of 20 consented patients (median age = 48.5°years; 55% female), 8 (40%) had ABI and 15 (75%) had unfavorable neurologic outcome at discharge. 10 (50%) patients were centrally cannulated. Median duration on ECMO was 4.5°days (IQR: 2.5-9.5). Peak GFAP, NFL, and Tau levels were higher in patients with ABI vs. without (AUC = 0.77; 0.85; 0.57, respectively) and in patients with unfavorable vs. favorable neurologic outcomes (AUC = 0.64; 0.59; 0.73, respectively). GFAP elevated first, NFL elevated to the highest degree, and Tau showed limited change regardless of ABI. CONCLUSION Further studies are warranted to determine how plasma biomarkers may facilitate early detection of ABIs in V-A ECMO to assist timely clinical decision-making.
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Affiliation(s)
- Syed Ameen Ahmad
- Division of Neurosciences Critical Care and Cardiac Surgery, Departments of Neurology, Surgery, Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Shrey Kapoor
- Division of Neurosciences Critical Care and Cardiac Surgery, Departments of Neurology, Surgery, Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Siam Muquit
- Division of Neurosciences Critical Care and Cardiac Surgery, Departments of Neurology, Surgery, Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Aaron Gusdon
- Division of Neurocritical Care, Department of Neurosurgery, McGovern School of Medicine, University of Texas Health Science Center, Houston, TX, USA
| | - Shivalika Khanduja
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Wendy Ziai
- Division of Neurosciences Critical Care and Cardiac Surgery, Departments of Neurology, Surgery, Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Allen D Everett
- Department of Pediatrics, Blalock-Taussig-Thomas Congenital Heart Center, Johns Hopkins University, Baltimore, MD, USA
| | - Glenn Whitman
- Division of Neurosciences Critical Care and Cardiac Surgery, Departments of Neurology, Surgery, Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Sung-Min Cho
- Division of Neurosciences Critical Care and Cardiac Surgery, Departments of Neurology, Surgery, Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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5
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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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6
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Tabet M, Custer C, Khan IR, Sanford E, Sharma J, Choe R, Singh S, Sirsi D, Olson DM, Morriss MC, Raman L, Busch DR. Neuromonitoring of Pediatric and Adult Extracorporeal Membrane Oxygenation Patients: The Importance of Continuous Bedside Tools in Driving Neuroprotective Clinical Care. ASAIO J 2024; 70:167-176. [PMID: 38051987 DOI: 10.1097/mat.0000000000002107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023] Open
Abstract
Extracorporeal membrane oxygenation (ECMO) is a form of temporary cardiopulmonary bypass for patients with acute respiratory or cardiac failure refractory to conventional therapy. Its usage has become increasingly widespread and while reported survival after ECMO has increased in the past 25 years, the incidence of neurological injury has not declined, leading to the pressing question of how to improve time-to-detection and diagnosis of neurological injury. The neurological status of patients on ECMO is clinically difficult to evaluate due to multiple factors including illness, sedation, and pharmacological paralysis. Thus, increasing attention has been focused on developing tools and techniques to measure and monitor the brain of ECMO patients to identify dynamic risk factors and monitor patients' neurophysiological state as a function in time. Such tools may guide neuroprotective interventions and thus prevent or mitigate brain injury. Current means to continuously monitor and prevent neurological injury in ECMO patients are rather limited; most techniques provide indirect or postinsult recognition of irreversible brain injury. This review will explore the indications, advantages, and disadvantages of standard-of-care, emerging, and investigational technologies for neurological monitoring on ECMO, focusing on bedside techniques that provide continuous assessment of neurological health.
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Affiliation(s)
- Margherita Tabet
- From the Department of Anesthesiology and Pain Management, The University of Texas Southwestern medical center/Children's Medical Center, Dallas, Texas
| | - Chasity Custer
- Division of Pediatric Critical Care Medicine, UT Southwestern Medical Center/Children's Medical Center, Dallas, Texas
| | - Imad R Khan
- Department of Neurology, University of Rochester Medical Center, Rochester, New York
| | - Ethan Sanford
- From the Department of Anesthesiology and Pain Management, The University of Texas Southwestern medical center/Children's Medical Center, Dallas, Texas
- Division of Pediatric Critical Care Medicine, UT Southwestern Medical Center/Children's Medical Center, Dallas, Texas
| | - Jayesh Sharma
- From the Department of Anesthesiology and Pain Management, The University of Texas Southwestern medical center/Children's Medical Center, Dallas, Texas
| | - Regine Choe
- Department of Biomedical Engineering, University of Rochester, Rochester, New York
- Department of Electrical and Computer Engineering, University of Rochester, Rochester, New York
| | - Sumit Singh
- Department of Radiology, UT Southwestern Medical Center/Children's Medical Center, Dallas, Texas
| | - Deepa Sirsi
- Division of Pediatric Neurology, UT Southwestern Medical Center/Children's Medical Center, Dallas, Texas
| | - DaiWai M Olson
- Department of Neurology, UT Southwestern Medical Center, Dallas, Texas
- Department of Neurological Surgery, UT Southwestern Medical Center, Dallas, Texas
| | - Michael Craig Morriss
- Department of Radiology, UT Southwestern Medical Center/Children's Medical Center, Dallas, Texas
| | - Lakshmi Raman
- Department of Pediatrics, The University of Texas Southwestern medical center
| | - David R Busch
- From the Department of Anesthesiology and Pain Management, The University of Texas Southwestern medical center/Children's Medical Center, Dallas, Texas
- Department of Neurology, UT Southwestern Medical Center, Dallas, Texas
- Department of Biomedical Engineering, UT Southwestern Medical Center, Dallas, Texas
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Zhao D, Shou BL, Caturegli G, Whitman GJR, Kim BS, Cho SM. Trends on Near-Infrared Spectroscopy Associated With Acute Brain Injury in Venoarterial Extracorporeal Membrane Oxygenation. ASAIO J 2023; 69:1083-1089. [PMID: 37556554 PMCID: PMC10843160 DOI: 10.1097/mat.0000000000002032] [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: 08/11/2023] Open
Abstract
We aimed to determine the association between cerebral regional oxygen saturation (rSO 2 ) trends from cerebral near-infrared spectroscopy (cNIRS) and acute brain injury (ABI) in adult venoarterial extracorporeal membrane oxygenation (VA-ECMO) patients. ABI was defined as intracranial hemorrhage, ischemic stroke, hypoxic ischemic brain injury, or brain death during ECMO. rSO 2 values were collected from left and right cerebral oximetry sensors every hour from ECMO cannulation. Cerebral desaturation was defined as consecutive hours of rSO 2 < 40%. rSO 2 asymmetry was determined by (a) averaging left/right rSO 2 difference over the entire ECMO run; (b) consecutive hours of rSO 2 asymmetry. Sixty-nine VA-ECMO patients (mean age 56 years, 65% male) underwent cNIRS. Eighteen (26%) experienced ABI. When the mean rSO 2 asymmetry was >8% there was significantly increased odds of ABI (aOR = 39.4; 95% CI = 4.1-381.4). Concurrent rSO 2 < 40% and rSO 2 asymmetry >10% for >10 consecutive hours (asymmetric desaturation) was also significantly associated with ABI (aOR = 5.2; 95% CI = 1.2-22.2), but neither criterion alone were. Mean rSO 2 asymmetry>8% exhibited 39% sensitivity and 98% specificity for detecting ABI, with an area under the curve (AUC) of 0.86, and asymmetric desaturation had 33% sensitivity and 88% specificity, with an AUC of 0.72. These trends on NIRS monitoring may help detect ABI in VA-ECMO patients.
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Affiliation(s)
- David Zhao
- From the Division of Neurosciences Critical Care, Departments of Neurology, Neurosurgery, Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Benjamin L Shou
- Cardiovascular Surgery Intensive Care Unit, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland, USA
| | - Giorgio Caturegli
- From the Division of Neurosciences Critical Care, Departments of Neurology, Neurosurgery, Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Glenn J R Whitman
- Cardiovascular Surgery Intensive Care Unit, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland, USA
| | - Bo Soo Kim
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Sung-Min Cho
- From the Division of Neurosciences Critical Care, Departments of Neurology, Neurosurgery, Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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8
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Deng B, Ying J, Mu D. Subtypes and Mechanistic Advances of Extracorporeal Membrane Oxygenation-Related Acute Brain Injury. Brain Sci 2023; 13:1165. [PMID: 37626521 PMCID: PMC10452596 DOI: 10.3390/brainsci13081165] [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: 07/10/2023] [Revised: 07/31/2023] [Accepted: 08/03/2023] [Indexed: 08/27/2023] Open
Abstract
Extracorporeal membrane oxygenation (ECMO) is a frequently used mechanical cardiopulmonary support for rescuing critically ill patients for whom conventional medical therapies have failed. However, ECMO is associated with several complications, such as acute kidney injury, hemorrhage, thromboembolism, and acute brain injury (ABI). Among these, ABI, particularly intracranial hemorrhage (ICH) and infarction, is recognized as the primary cause of mortality during ECMO support. Furthermore, survivors often suffer significant long-term morbidities, including neurocognitive impairments, motor disturbances, and behavioral problems. This review provides a comprehensive overview of the different subtypes of ECMO-related ABI and the updated advance mechanisms, which could be helpful for the early diagnosis and potential neuromonitoring of ECMO-related ABI.
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Affiliation(s)
- Bixin Deng
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu 610041, China;
| | - Junjie Ying
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu 610041, China;
| | - Dezhi Mu
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu 610041, China;
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu 610041, China;
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9
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Khanduja S, Kim J, Kang JK, Feng CY, Vogelsong MA, Geocadin RG, Whitman G, Cho SM. Hypoxic-Ischemic Brain Injury in ECMO: Pathophysiology, Neuromonitoring, and Therapeutic Opportunities. Cells 2023; 12:1546. [PMID: 37296666 PMCID: PMC10252448 DOI: 10.3390/cells12111546] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/02/2023] [Accepted: 06/03/2023] [Indexed: 06/12/2023] Open
Abstract
Extracorporeal membrane oxygenation (ECMO), in conjunction with its life-saving benefits, carries a significant risk of acute brain injury (ABI). Hypoxic-ischemic brain injury (HIBI) is one of the most common types of ABI in ECMO patients. Various risk factors, such as history of hypertension, high day 1 lactate level, low pH, cannulation technique, large peri-cannulation PaCO2 drop (∆PaCO2), and early low pulse pressure, have been associated with the development of HIBI in ECMO patients. The pathogenic mechanisms of HIBI in ECMO are complex and multifactorial, attributing to the underlying pathology requiring initiation of ECMO and the risk of HIBI associated with ECMO itself. HIBI is likely to occur in the peri-cannulation or peri-decannulation time secondary to underlying refractory cardiopulmonary failure before or after ECMO. Current therapeutics target pathological mechanisms, cerebral hypoxia and ischemia, by employing targeted temperature management in the case of extracorporeal cardiopulmonary resuscitation (eCPR), and optimizing cerebral O2 saturations and cerebral perfusion. This review describes the pathophysiology, neuromonitoring, and therapeutic techniques to improve neurological outcomes in ECMO patients in order to prevent and minimize the morbidity of HIBI. Further studies aimed at standardizing the most relevant neuromonitoring techniques, optimizing cerebral perfusion, and minimizing the severity of HIBI once it occurs will improve long-term neurological outcomes in ECMO patients.
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Affiliation(s)
- Shivalika Khanduja
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; (S.K.); (J.K.K.); (G.W.)
| | - Jiah Kim
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA; (J.K.); (C.-Y.F.)
| | - Jin Kook Kang
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; (S.K.); (J.K.K.); (G.W.)
| | - Cheng-Yuan Feng
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA; (J.K.); (C.-Y.F.)
| | - Melissa Ann Vogelsong
- Department of Anesthesiology, Perioperative & Pain Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA;
| | - Romergryko G. Geocadin
- Divisions of Neurosciences Critical Care, Departments of Neurology, Surgery, Anesthesiology and Critical Care Medicine and Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA;
| | - Glenn Whitman
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; (S.K.); (J.K.K.); (G.W.)
| | - Sung-Min Cho
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; (S.K.); (J.K.K.); (G.W.)
- Divisions of Neurosciences Critical Care, Departments of Neurology, Surgery, Anesthesiology and Critical Care Medicine and Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA;
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10
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Rozencwajg S, Heinsar S, Wildi K, Jung JS, Colombo SM, Palmieri C, Sato K, Ainola C, Wang X, Abbate G, Sato N, Dyer WB, Livingstone S, Helms L, Bartnikowski N, Bouquet M, Passmore MR, Hyslop K, Vidal B, Reid JD, McGuire D, Wilson ES, Rätsep I, Lorusso R, Schmidt M, Suen JY, Bassi GL, Fraser JF. Effect of flow change on brain injury during an experimental model of differential hypoxaemia in cardiogenic shock supported by extracorporeal membrane oxygenation. Sci Rep 2023; 13:4002. [PMID: 36899029 PMCID: PMC10006234 DOI: 10.1038/s41598-023-30226-6] [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: 12/23/2022] [Accepted: 02/17/2023] [Indexed: 03/12/2023] Open
Abstract
Differential hypoxaemia (DH) is common in patients supported by femoral veno-arterial extracorporeal membrane oxygenation (V-A ECMO) and can cause cerebral hypoxaemia. To date, no models have studied the direct impact of flow on cerebral damage. We investigated the impact of V-A ECMO flow on brain injury in an ovine model of DH. After inducing severe cardiorespiratory failure and providing ECMO support, we randomised six sheep into two groups: low flow (LF) in which ECMO was set at 2.5 L min-1 ensuring that the brain was entirely perfused by the native heart and lungs, and high flow (HF) in which ECMO was set at 4.5 L min-1 ensuring that the brain was at least partially perfused by ECMO. We used invasive (oxygenation tension-PbTO2, and cerebral microdialysis) and non-invasive (near infrared spectroscopy-NIRS) neuromonitoring, and euthanised animals after five hours for histological analysis. Cerebral oxygenation was significantly improved in the HF group as shown by higher PbTO2 levels (+ 215% vs - 58%, p = 0.043) and NIRS (67 ± 5% vs 49 ± 4%, p = 0.003). The HF group showed significantly less severe brain injury than the LF group in terms of neuronal shrinkage, congestion and perivascular oedema (p < 0.0001). Cerebral microdialysis values in the LF group all reached the pathological thresholds, even though no statistical difference was found between the two groups. Differential hypoxaemia can lead to cerebral damage after only a few hours and mandates a thorough neuromonitoring of patients. An increase in ECMO flow was an effective strategy to reduce such damages.
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Affiliation(s)
- Sacha Rozencwajg
- Service de Réanimation Médicale, Groupe Hospitalier Pitié-Salpêtrière, Institut de Cardiologie, Assistance Publique-Hôpitaux de Paris, Hôpital de la Pitié-Salpêtrière, 47, bd de l'Hôpital, 75651, Paris Cedex 13, France.
- UPMC Université Paris 06, INSERM, UMRS-1166, ICAN Institute of Cardiometabolism and Nutrition, Sorbonne Universités, Paris, France.
- Critical Care Research Group, The Prince Charles Hospital, Level 3, Clinical Sciences Building, Chermside, Brisbane, QLD, 4032, Australia.
- Faculty of Medicine, University of Queensland, Brisbane, Australia.
| | - Silver Heinsar
- Critical Care Research Group, The Prince Charles Hospital, Level 3, Clinical Sciences Building, Chermside, Brisbane, QLD, 4032, Australia
- Faculty of Medicine, University of Queensland, Brisbane, Australia
- Department of Intensive Care, North Estonia Medical Centre, Tallinn, Estonia
- Intensive Care Unit, St Andrew's War Memorial Hospital, Brisbane, Australia
| | - Karin Wildi
- Critical Care Research Group, The Prince Charles Hospital, Level 3, Clinical Sciences Building, Chermside, Brisbane, QLD, 4032, Australia
- Faculty of Medicine, University of Queensland, Brisbane, Australia
| | - Jae-Seung Jung
- Critical Care Research Group, The Prince Charles Hospital, Level 3, Clinical Sciences Building, Chermside, Brisbane, QLD, 4032, Australia
- Department of Thoracic and Cardiovascular Surgery, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Sebastiano Maria Colombo
- Critical Care Research Group, The Prince Charles Hospital, Level 3, Clinical Sciences Building, Chermside, Brisbane, QLD, 4032, Australia
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
- Department of Anaesthesia and Intensive Care Medicine, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Lombardia, Italy
| | - Chiara Palmieri
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Kei Sato
- Critical Care Research Group, The Prince Charles Hospital, Level 3, Clinical Sciences Building, Chermside, Brisbane, QLD, 4032, Australia
- Faculty of Medicine, University of Queensland, Brisbane, Australia
| | - Carmen Ainola
- Critical Care Research Group, The Prince Charles Hospital, Level 3, Clinical Sciences Building, Chermside, Brisbane, QLD, 4032, Australia
- Faculty of Medicine, University of Queensland, Brisbane, Australia
- Department of Intensive Care, North Estonia Medical Centre, Tallinn, Estonia
| | - Xiaomeng Wang
- Critical Care Research Group, The Prince Charles Hospital, Level 3, Clinical Sciences Building, Chermside, Brisbane, QLD, 4032, Australia
| | - Gabriella Abbate
- Critical Care Research Group, The Prince Charles Hospital, Level 3, Clinical Sciences Building, Chermside, Brisbane, QLD, 4032, Australia
- Department of Anaesthesia and Intensive Care Medicine, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Lombardia, Italy
| | - Noriko Sato
- Critical Care Research Group, The Prince Charles Hospital, Level 3, Clinical Sciences Building, Chermside, Brisbane, QLD, 4032, Australia
| | - Wayne B Dyer
- Australian Red Cross Lifeblood, Sydney, Australia
| | - Samantha Livingstone
- Critical Care Research Group, The Prince Charles Hospital, Level 3, Clinical Sciences Building, Chermside, Brisbane, QLD, 4032, Australia
| | - Leticia Helms
- Critical Care Research Group, The Prince Charles Hospital, Level 3, Clinical Sciences Building, Chermside, Brisbane, QLD, 4032, Australia
- Columbia University, College of Physicians and Surgeons, New York, USA
| | - Nicole Bartnikowski
- Critical Care Research Group, The Prince Charles Hospital, Level 3, Clinical Sciences Building, Chermside, Brisbane, QLD, 4032, Australia
- Science and Engineering Faculty, Queensland University of Technology, Brisbane, QLD, Australia
| | - Mahe Bouquet
- Critical Care Research Group, The Prince Charles Hospital, Level 3, Clinical Sciences Building, Chermside, Brisbane, QLD, 4032, Australia
- Faculty of Medicine, University of Queensland, Brisbane, Australia
| | - Margaret R Passmore
- Critical Care Research Group, The Prince Charles Hospital, Level 3, Clinical Sciences Building, Chermside, Brisbane, QLD, 4032, Australia
- Faculty of Medicine, University of Queensland, Brisbane, Australia
| | - Kieran Hyslop
- Critical Care Research Group, The Prince Charles Hospital, Level 3, Clinical Sciences Building, Chermside, Brisbane, QLD, 4032, Australia
- Faculty of Medicine, University of Queensland, Brisbane, Australia
| | - Bruno Vidal
- Critical Care Research Group, The Prince Charles Hospital, Level 3, Clinical Sciences Building, Chermside, Brisbane, QLD, 4032, Australia
| | - Janice D Reid
- Critical Care Research Group, The Prince Charles Hospital, Level 3, Clinical Sciences Building, Chermside, Brisbane, QLD, 4032, Australia
- Faculty of Medicine, University of Queensland, Brisbane, Australia
| | - Daniel McGuire
- Critical Care Research Group, The Prince Charles Hospital, Level 3, Clinical Sciences Building, Chermside, Brisbane, QLD, 4032, Australia
| | - Emily S Wilson
- Critical Care Research Group, The Prince Charles Hospital, Level 3, Clinical Sciences Building, Chermside, Brisbane, QLD, 4032, Australia
- Faculty of Medicine, University of Queensland, Brisbane, Australia
| | - Indrek Rätsep
- Department of Intensive Care, North Estonia Medical Centre, Tallinn, Estonia
| | - Roberto Lorusso
- Cardio-Thoracic Surgery Department, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Matthieu Schmidt
- Service de Réanimation Médicale, Groupe Hospitalier Pitié-Salpêtrière, Institut de Cardiologie, Assistance Publique-Hôpitaux de Paris, Hôpital de la Pitié-Salpêtrière, 47, bd de l'Hôpital, 75651, Paris Cedex 13, France
- UPMC Université Paris 06, INSERM, UMRS-1166, ICAN Institute of Cardiometabolism and Nutrition, Sorbonne Universités, Paris, France
| | - Jacky Y Suen
- Critical Care Research Group, The Prince Charles Hospital, Level 3, Clinical Sciences Building, Chermside, Brisbane, QLD, 4032, Australia
- Faculty of Medicine, University of Queensland, Brisbane, Australia
| | - Gianluigi Li Bassi
- Critical Care Research Group, The Prince Charles Hospital, Level 3, Clinical Sciences Building, Chermside, Brisbane, QLD, 4032, Australia.
- Faculty of Medicine, University of Queensland, Brisbane, Australia.
- Queensland University of Technology, Brisbane, Australia.
- Intensive Care Unit, St Andrew's War Memorial Hospital, Brisbane, Australia.
- Intensive Care Unit, The Wesley Hospital, Brisbane, Australia.
- Wesley Medical Research, The Wesley, Queensland, Auchenflower, Australia.
| | - John F Fraser
- Critical Care Research Group, The Prince Charles Hospital, Level 3, Clinical Sciences Building, Chermside, Brisbane, QLD, 4032, Australia
- Faculty of Medicine, University of Queensland, Brisbane, Australia
- Intensive Care Unit, St Andrew's War Memorial Hospital, Brisbane, Australia
- Intensive Care Unit, The Wesley Hospital, Brisbane, Australia
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11
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Mechanical Ventilation in Patients with Traumatic Brain Injury: Is it so Different? Neurocrit Care 2023; 38:178-191. [PMID: 36071333 DOI: 10.1007/s12028-022-01593-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 08/16/2022] [Indexed: 10/14/2022]
Abstract
Patients with traumatic brain injury (TBI) frequently require invasive mechanical ventilation and admission to an intensive care unit. Ventilation of patients with TBI poses unique clinical challenges, and careful attention is required to ensure that the ventilatory strategy (including selection of appropriate tidal volume, plateau pressure, and positive end-expiratory pressure) does not cause significant additional injury to the brain and lungs. Selection of ventilatory targets may be guided by principles of lung protection but with careful attention to relevant intracranial effects. In patients with TBI and concomitant acute respiratory distress syndrome (ARDS), adjunctive strategies include sedation optimization, neuromuscular blockade, recruitment maneuvers, prone positioning, and extracorporeal life support. However, these approaches have been largely extrapolated from studies in patients with ARDS and without brain injury, with limited data in patients with TBI. This narrative review will summarize the existing evidence for mechanical ventilation in patients with TBI. Relevant literature in patients with ARDS will be summarized, and where available, direct data in the TBI population will be reviewed. Next, practical strategies to optimize the delivery of mechanical ventilation and determine readiness for extubation will be reviewed. Finally, future directions for research in this evolving clinical domain will be presented, with considerations for the design of studies to address relevant knowledge gaps.
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12
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Dynamic Variables of Electroencephalography may be a Window into Brain Responsiveness. Neurocrit Care 2022; 37:618-619. [PMID: 36180763 PMCID: PMC9524732 DOI: 10.1007/s12028-022-01487-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 01/20/2022] [Indexed: 11/13/2022]
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13
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Ahmad S, Ahsan MJ, Ikram S, Lateef N, Khan BA, Tabassum S, Naeem A, Qavi AH, Ardhanari S, Goldsweig AM. Impella versus extracorporeal membranous oxygenation (ECMO) for cardiogenic shock: a systematic review and meta-analysis. Curr Probl Cardiol 2022; 48:101427. [PMID: 36174742 DOI: 10.1016/j.cpcardiol.2022.101427] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 09/21/2022] [Indexed: 10/14/2022]
Abstract
BACKGROUND The use of mechanical circulatory support (MCS) in cardiogenic shock (CS) is increasing. We conducted a systematic review and meta-analysis to compare outcomes with the Impella device vs. ECMO in patients with CS. METHODS We searched the Medline, EMBASE, Cochrane, and Clinicaltrials.gov databases for observational studies comparing Impella to ECMO in patients with CS. Risk ratios (RRs) for categorical variables and standardized mean differences (SMDs) for continuous variables were calculated with 95% confidence intervals (CIs) using a random-effects model. RESULTS Twelve retrospective studies and one prospective study (Impella n=6652, ECMO n=1232) were identified. Impella use was associated with lower incidence of in-hospital mortality (RR 0.88 [95% CI 0.80-0.94], p=0.0004), stroke (RR 0.30 [0.21-0.42], p<0.00001), access-site bleeding (RR 0.50 [0.37-0.69], p<0.0001), major bleeding (RR 0.56 [0.39-0.80], p=0.002), and limb ischemia (RR 0.42 [0.27-0.65], p=0.0001). Baseline lactate levels were significantly lower in the Impella group (SMD -0.52 [-0.73- -0.31], p<0.00001). There was no significant difference in mortality at 6-12 months, MCS duration, need for MCS escalation, bridge-to-LVAD or heart transplant, and renal replacement therapy use between Impella and ECMO groups. CONCLUSION In patients with CS, Impella device use was associated with lower in-hospital mortality, stroke, and device-related complications than ECMO. However, patients in the ECMO group had higher baseline lactate levels.
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Affiliation(s)
- Soban Ahmad
- Department of Internal Medicine, East Carolina University, Greenville, NC.
| | | | - Sundus Ikram
- Department of Internal Medicine, SEGi University, Petaling Jaya, MY
| | - Noman Lateef
- Division of Cardiovascular Medicine, University of Nebraska Medical Center, Omaha, NE
| | - Behram A Khan
- Department of Internal Medicine, The Jewish Hospital - Mercy Health, Cincinnati, Ohio
| | - Shehroze Tabassum
- Department of Internal Medicine, King Edward Medical University, Lahore, PK
| | - Aroma Naeem
- Department of Internal Medicine, King Edward Medical University, Lahore, PK
| | - Ahmed H Qavi
- Division of Cardiovascular Medicine, East Carolina University, Greenville, NC
| | - Sivakumar Ardhanari
- Division of Cardiovascular Medicine, East Carolina University, Greenville, NC
| | - Andrew M Goldsweig
- Division of Cardiovascular Medicine, University of Nebraska Medical Center, Omaha, NE
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14
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Follis F, Martucci G, Arcadipane A, Follis M, Rajbanshi B, Lorusso R. Resuscitation for moribund alpinists stranded at high altitudes: A stepwise approach including ECMO as a last resort strategy. Artif Organs 2022; 46:1459-1462. [PMID: 35643844 DOI: 10.1111/aor.14320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 04/28/2022] [Accepted: 05/16/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Fabrizio Follis
- Department of Cardiac Surgery, Istituto di Ricerca e Cura a Carattere Scientifico-Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione (IRCCS-ISMETT), Palermo, Italy
| | - Gennaro Martucci
- Department of Anesthesia and Intensive Care, Istituto di Ricerca e Cura a Carattere Scientifico-Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione (IRCCS-ISMETT), Palermo, Italy
| | - Antonio Arcadipane
- Department of Anesthesia and Intensive Care, Istituto di Ricerca e Cura a Carattere Scientifico-Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione (IRCCS-ISMETT), Palermo, Italy
| | - Marco Follis
- Department of Cardiac Surgery, Klinikum, Braunschweig, Germany
| | - Bijoy Rajbanshi
- Department of Cardiac Surgery, Nepal Mediciti Hospital, Kathmandu, Nepal
| | - Roberto Lorusso
- Department of Cardiothoracic Surgery, Heart and Vascular Centre, Maastricht University Medical Centre, Maastricht, The Netherlands
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15
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Ben-Hamouda N, Ltaief Z, Kirsch M, Novy J, Liaudet L, Oddo M, Rossetti AO. Neuroprognostication Under ECMO After Cardiac Arrest: Are Classical Tools Still Performant? Neurocrit Care 2022; 37:293-301. [PMID: 35534658 DOI: 10.1007/s12028-022-01516-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 03/25/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND According to international guidelines, neuroprognostication in comatose patients after cardiac arrest (CA) is performed using a multimodal approach. However, patients undergoing extracorporeal membrane oxygenation (ECMO) may have longer pharmacological sedation and show alteration in biological markers, potentially challenging prognostication. Here, we aimed to assess whether routinely used predictors of poor neurological outcome also exert an acceptable performance in patients undergoing ECMO after CA. METHODS This observational retrospective study of our registry includes consecutive comatose adults after CA. Patients deceased within 36 h and not undergoing prognostic tests were excluded. Veno-arterial ECMO was initiated in patients < 80 years old presenting a refractory CA, with a no flow < 5 min and a low flow ≤ 60 min on admission. Neuroprognostication test performance (including pupillary reflex, electroencephalogram, somatosensory-evoked potentials, neuron-specific enolase) toward mortality and poor functional outcome (Cerebral Performance Categories [CPC] score 3-5) was compared between patients undergoing ECMO and those without ECMO. RESULTS We analyzed 397 patients without ECMO and 50 undergoing ECMO. The median age was 65 (interquartile range 54-74), and 69.8% of patients were men. Most had a cardiac etiology (67.6%); 52% of the patients had a shockable rhythm, and the median time to return of an effective circulation was 20 (interquartile range 10-28) minutes. Compared with those without ECMO, patients receiving ECMO had worse functional outcome (74% with CPC scores 3-5 vs. 59%, p = 0.040) and a nonsignificant higher mortality (60% vs. 47%, p = 0.080). Apart from the neuron-specific enolase level (higher in patients with ECMO, p < 0.001), the presence of prognostic items (pupillary reflex, electroencephalogram background and reactivity, somatosensory-evoked potentials, and myoclonus) related to unfavorable outcome (CPC score 3-5) in both groups was similar, as was the prevalence of at least any two such items concomitantly. The specificity of each these variables toward poor outcome was between 92 and 100% in both groups, and of the combination of at least two items, it was 99.3% in patients without ECMO and 100% in those with ECMO. The predictive performance (receiver operating characteristic curve) of their combination toward poor outcome was 0.822 (patients without ECMO) and 0.681 (patients with ECMO) (p = 0.134). CONCLUSIONS Pending a prospective assessment on a larger cohort, in comatose patients after CA, the performance of prognostic factors seems comparable in patients with ECMO and those without ECMO. In particular, the combination of at least two poor outcome criteria appears valid across these two groups.
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Affiliation(s)
- Nawfel Ben-Hamouda
- Department of Adult Intensive Care Medicine, Lausanne University Hospital, Rue du Bugnon 46, 1011, Lausanne, Switzerland. .,Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland.
| | - Zied Ltaief
- Department of Adult Intensive Care Medicine, Lausanne University Hospital, Rue du Bugnon 46, 1011, Lausanne, Switzerland.,Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - Matthias Kirsch
- Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland.,Department of Cardiovascular Surgery, Lausanne University Hospital, Lausanne, Switzerland
| | - Jan Novy
- Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland.,Department of Clinical Neurosciences, Lausanne University Hospital, Lausanne, Switzerland
| | - Lucas Liaudet
- Department of Adult Intensive Care Medicine, Lausanne University Hospital, Rue du Bugnon 46, 1011, Lausanne, Switzerland.,Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - Mauro Oddo
- Department of Adult Intensive Care Medicine, Lausanne University Hospital, Rue du Bugnon 46, 1011, Lausanne, Switzerland.,Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - Andrea O Rossetti
- Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland.,Department of Clinical Neurosciences, Lausanne University Hospital, Lausanne, Switzerland
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