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Zhang K, Liang F, Wu Y, Wang X, Hou X, Zhang Z, Yu Y, Wang Y, Han R. Associations of arterial oxygen partial pressure with all‑cause mortality in critically ill ischemic stroke patients: a retrospective cohort study from MIMIC IV 2.2. BMC Anesthesiol 2024; 24:355. [PMID: 39367296 DOI: 10.1186/s12871-024-02750-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: 07/16/2024] [Accepted: 09/30/2024] [Indexed: 10/06/2024] Open
Abstract
BACKGROUND As a supportive treatment, the effectiveness of oxygen therapy in ischemic stroke (IS) patients remains unclear. This study aimed to evaluate the relationships between arterial partial pressure of oxygen (PaO2) and both consciousness at discharge and all-cause mortality risk in ICU IS patients. METHODS Blood gas measurements for all patients diagnosed with IS were extracted from the MIMIC-IV database. Patients were classified into four groups based on their average PaO2 during the first ICU day: hypoxemia (PaO2 < 80 mmHg), normoxemia (PaO2 80-120 mmHg), mild hyperoxemia (PaO2 121-199 mmHg), and moderate/severe hyperoxemia (PaO2 ≥ 200 mmHg). The primary endpoint was 90-day all-cause mortality. Secondary outcomes included the level of consciousness at discharge, assessed by the Glasgow Coma Scale (GCS), and 30-day all-cause mortality. Multivariate Cox regression and Restricted cubic spline (RCS) analysis were used to investigate the relationship between mean PaO2 and mortality, and to assess the nonlinear association between exposure and outcomes. RESULTS This study included a total of 946 IS patients. The cumulative incidence of 30-day and 90-day all-cause mortality increased with decreasing PaO2 levels. RCS analysis revealed a nonlinear relationship between PaO2 and the risk of 30-day all-cause mortality (nonlinear P < 0.0001, overall P < 0.0001), as well as a nonlinear association between PaO2 and 90-day all-cause mortality (nonlinear P < 0.0001, overall P < 0.0001). The results remained consistent after excluding the small subset of patients who received reperfusion therapy. Sensitivity analysis indicated that the favorable impact on survival tends to increase with the extended duration of elevated PaO2. CONCLUSIONS For IS patients who do not receive reperfusion therapy or whose recanalization status is unknown, a lower PaO2 early during ICU admission is considered an independent risk factor for short-term and recent mortality. Adjusting respiratory parameters to maintain supraphysiological levels of PaO2 appears to be beneficial for survival, although this finding requires further validation through additional studies. TRIAL REGISTRATION Not applicable.
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Affiliation(s)
- Kangda Zhang
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, PR China
| | - Fa Liang
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, PR China
| | - Youxuan Wu
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, PR China
| | - Xinyan Wang
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, PR China
| | - Xuan Hou
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, PR China
| | - Zihui Zhang
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, PR China
| | - Yun Yu
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, PR China
| | - Yunzhen Wang
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, PR China
| | - Ruquan Han
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, PR China.
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2
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Cho SM, Antonini MV, MacLaren G, Zaaqoq AM, Lorusso R. Highlights of the 2024 ELSO Consensus Guidelines on Neurological Monitoring and Management for Adult ECMO. ASAIO J 2024:00002480-990000000-00569. [PMID: 39348185 DOI: 10.1097/mat.0000000000002324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/01/2024] Open
Affiliation(s)
- Sung-Min Cho
- Neuroscience Critical Care Division, Departments of Neurology, Anesthesiology and Critical Care Medicine, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Division of Cardiac Surgery, Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Marta V Antonini
- Bufalini Hospital, AUSL della Romagna, Cesena, Italy
- Cardio-Nephro-Thoracic science program, University of Bologna, Bologna, Italy
| | - Graeme MacLaren
- Cardiothoracic Intensive Care Unit, National University Hospital, Singapore
| | - Akram M Zaaqoq
- Department of Anesthesiology, Division of Critical Care, University of Virginia, Charlottesville, Virginia, 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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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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Pisano DV, Ortoleva JP, Wieruszewski PM. Short-Term Neurologic Complications in Patients Undergoing Extracorporeal Membrane Oxygenation Support: A Review on Pathophysiology, Incidence, Risk Factors, and Outcomes. Pulm Ther 2024; 10:267-278. [PMID: 38937418 PMCID: PMC11339018 DOI: 10.1007/s41030-024-00265-z] [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: 04/08/2024] [Accepted: 06/04/2024] [Indexed: 06/29/2024] Open
Abstract
Regardless of the type, extracorporeal membrane oxygenation (ECMO) requires the use of large intravascular cannulas and results in multiple abnormalities including non-physiologic blood flow, hemodynamic perturbation, rapid changes in blood oxygen and carbon dioxide levels, coagulation abnormalities, and a significant systemic inflammatory response. Among other sequelae, neurologic complications are an important source of mortality and long-term morbidity. The frequency of neurologic complications varies and is likely underreported due to the high mortality rate. Neurologic complications in patients supported by ECMO include ischemic and hemorrhagic stroke, hypoxic brain injury, intracranial hemorrhage, and brain death. In addition to the disease process that necessitates ECMO, cannulation strategies and physiologic disturbances influence neurologic outcomes in this high-risk population. For example, the overall documented rate of neurologic complications in the venovenous ECMO population is lower, but a higher rate of intracranial hemorrhage exists. Meanwhile, in the venoarterial ECMO population, ischemia and global hypoperfusion seem to compose a higher percentage of neurologic complications. In what follows, the literature is reviewed to discuss the pathophysiology, incidence, risk factors, and outcomes related to short-term neurologic complications in patients supported by ECMO.
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Affiliation(s)
- Dominic V Pisano
- Department of Anesthesiology, Boston Medical Center, Boston, MA, USA
| | - Jamel P Ortoleva
- Department of Anesthesiology, Boston Medical Center, Boston, MA, USA
| | - Patrick M Wieruszewski
- Department of Anesthesiology, Department of Pharmacy, Mayo Clinic, 200 First Street SW, Rochester, MN, 55906, USA.
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Hwang J, Akbar AF, Premraj L, Ritzl EK, Cho SM. Epidemiology of Seizures and Association With Mortality in Adult Patients Undergoing ECMO: A Systematic Review and Meta-analysis. Neurology 2024; 103:e209721. [PMID: 39079068 DOI: 10.1212/wnl.0000000000209721] [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: 09/05/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Extracorporeal membrane oxygenation (ECMO) provides lifesaving support to patients with cardiopulmonary failure. Although seizures increase mortality risks among critically ill patients broadly, studies specific to adult ECMO patients have largely been limited to single-center studies. Thus, we aimed to perform a systematic review and meta-analyses of seizure prevalence, mortality, and their associations in adult ECMO patients. METHODS PubMed, EMBASE, Cochrane trial registry, Web of Science, and SCOPUS were searched on August 5, 2023. Following the Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines, we included studies of adults undergoing venovenous ECMO (VV-ECMO), venoarterial ECMO (VA-ECMO), or extracorporeal cardiopulmonary resuscitation (ECPR) that reported seizures during ECMO. The extracted data included study characteristics, patient demographics, ECMO support, EEG monitoring, and seizures, organized by ECMO types. Forest plot and meta-regression analyses were performed. Bias assessment was performed with the Egger test and Newcastle-Ottawa Scale. RESULTS Twenty-three studies (n = 40,420, mean age = 51.8 years, male = 62%) were included. Data were extracted by ECMO type as follows: VV-ECMO (n = 16,633), non-ECPR VA-ECMO (n = 11,082), ECPR (n = 3,369), combination of VA-ECMO and ECPR (n = 240), and combination of all types (n = 9,096). The pooled seizure prevalence for all ECMO types was 3.0%, not significantly different across ECMO types (VV-ECMO = 2.0% [95% CI 0.8-4.5]; VA-ECMO = 3.5% [95% CI 1.7-7.0]; ECPR = 4.9% [95% CI 1.3-17.2]). The pooled mortality was lower for VV-ECMO (46.2% [95% CI 39.3-53.2]) than VA-ECMO (63.4% [95% CI 56.6-69.6]) and ECPR (61.5% [95% CI 57.3-65.6]). Specifically, for VV-ECMO, the pooled mortality of patients with and without seizures was 55.1% and 36.7%, respectively (relative risk = 1.5 [95% CI 1.3-1.7]). Similarly, for VA-ECMO, the pooled mortality of patients with and without seizures was 74.4% and 56.1%, respectively (relative risk = 1.3 [95% CI 1.2-1.5]). Meta-regression analyses demonstrated that seizure prevalence was not associated with prior neurologic comorbidities, adjusted for ECMO type and study year. DISCUSSION Seizures are infrequent during ECMO support. However, they were associated with increased mortality when present. Multi-institutional, larger-scale studies using standardized EEG monitoring are necessary to further understand the risk factors of specific classes of seizures for individual ECMO types, and their effects on mortality. Limitations of our study include missing data for details on seizure types, sedating/antiseizure medications used during ECMO, other ECMO-related complications, and EEG recording protocols.
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Affiliation(s)
- Jaeho Hwang
- From the Division of Epilepsy (J.H., E.K.R.), Department of Neurology; Division of Cardiac Surgery (A.F.A.), Department of Surgery, The Johns Hopkins Hospital, Baltimore, MD; Griffith University School of Medicine (L.P.), Gold Coast, Queensland, Australia; Division of Neurosciences Critical Care (E.K.R., S.-M.C.), Departments of Neurology, Neurosurgery, Anesthesiology, Critical Care Medicine, The Johns Hopkins Hospital, Baltimore, MD; and Division of Intraoperative Neuromonitoring (E.K.R.), Department of Neurology, Massachusetts General Brigham, Boston
| | - Armaan F Akbar
- From the Division of Epilepsy (J.H., E.K.R.), Department of Neurology; Division of Cardiac Surgery (A.F.A.), Department of Surgery, The Johns Hopkins Hospital, Baltimore, MD; Griffith University School of Medicine (L.P.), Gold Coast, Queensland, Australia; Division of Neurosciences Critical Care (E.K.R., S.-M.C.), Departments of Neurology, Neurosurgery, Anesthesiology, Critical Care Medicine, The Johns Hopkins Hospital, Baltimore, MD; and Division of Intraoperative Neuromonitoring (E.K.R.), Department of Neurology, Massachusetts General Brigham, Boston
| | - Lavienraj Premraj
- From the Division of Epilepsy (J.H., E.K.R.), Department of Neurology; Division of Cardiac Surgery (A.F.A.), Department of Surgery, The Johns Hopkins Hospital, Baltimore, MD; Griffith University School of Medicine (L.P.), Gold Coast, Queensland, Australia; Division of Neurosciences Critical Care (E.K.R., S.-M.C.), Departments of Neurology, Neurosurgery, Anesthesiology, Critical Care Medicine, The Johns Hopkins Hospital, Baltimore, MD; and Division of Intraoperative Neuromonitoring (E.K.R.), Department of Neurology, Massachusetts General Brigham, Boston
| | - Eva K Ritzl
- From the Division of Epilepsy (J.H., E.K.R.), Department of Neurology; Division of Cardiac Surgery (A.F.A.), Department of Surgery, The Johns Hopkins Hospital, Baltimore, MD; Griffith University School of Medicine (L.P.), Gold Coast, Queensland, Australia; Division of Neurosciences Critical Care (E.K.R., S.-M.C.), Departments of Neurology, Neurosurgery, Anesthesiology, Critical Care Medicine, The Johns Hopkins Hospital, Baltimore, MD; and Division of Intraoperative Neuromonitoring (E.K.R.), Department of Neurology, Massachusetts General Brigham, Boston
| | - Sung-Min Cho
- From the Division of Epilepsy (J.H., E.K.R.), Department of Neurology; Division of Cardiac Surgery (A.F.A.), Department of Surgery, The Johns Hopkins Hospital, Baltimore, MD; Griffith University School of Medicine (L.P.), Gold Coast, Queensland, Australia; Division of Neurosciences Critical Care (E.K.R., S.-M.C.), Departments of Neurology, Neurosurgery, Anesthesiology, Critical Care Medicine, The Johns Hopkins Hospital, Baltimore, MD; and Division of Intraoperative Neuromonitoring (E.K.R.), Department of Neurology, Massachusetts General Brigham, Boston
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Kalra A, Kang JK, Wilcox C, Shou BL, Brown P, Rycus P, Anders MM, Zaaqoq AM, Brodie D, Whitman GJR, Cho SM. Pulse Pressure and Acute Brain Injury in Venoarterial Extracorporeal Membrane Oxygenation: An Extracorporeal Life Support Organization Registry Analysis. ASAIO J 2024:00002480-990000000-00547. [PMID: 39178166 DOI: 10.1097/mat.0000000000002294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2024] Open
Abstract
Low pulse pressure (PP) in venoarterial-extracorporeal membrane oxygenation (VA-ECMO) is a marker of cardiac dysfunction and has been associated with acute brain injury (ABI) as continuous-flow centrifugal pump may lead to endothelial dysregulation. We retrospectively analyzed adults (≥18 years) receiving "peripheral" VA-ECMO for cardiogenic shock in the Extracorporeal Life Support Organization Registry (January 2018-July 2023). Acute brain injury (our primary outcome) included central nervous system (CNS) ischemia, intracranial hemorrhage, brain death, and seizures. Multivariable logistic regressions were performed to examine whether PP ≤10 mm Hg was associated with ABI. Of 9,807 peripheral VA-ECMO patients (median age = 57.4 years, 67% = male), 8,294 (85%) had PP >10 mm Hg versus 1,513 (15%) had PP ≤10 mm Hg. Patients with PP ≤10 mm Hg experienced ABI more frequently versus PP >10 mm Hg (15% versus 11%, p < 0.001). After adjustment, PP ≤10 mm Hg was independently associated with ABI (adjusted odds ratio [aOR] = 1.25, 95% confidence interval [CI] = 1.06-1.48, p = 0.01). Central nervous system ischemia and brain death were more common in patients with PP ≤10 versus PP >10 mm Hg (8% versus 6%, p = 0.008; 3% versus 1%, p < 0.001). Pulse pressure ≤10 mm Hg was associated with CNS ischemia (aOR = 1.26, 95% CI = 1.02-1.56, p = 0.03) but not intracranial hemorrhage (aOR = 1.14, 95% CI = 0.85-1.54, p = 0.38). Early low PP (≤10 mm Hg) at 24 hours of ECMO support was associated with ABI, particularly CNS ischemia, in peripheral VA-ECMO patients.
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Affiliation(s)
- Andrew Kalra
- From the Division of Cardiac Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland
- Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Jin Kook Kang
- From the Division of Cardiac Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - Christopher Wilcox
- Department of Critical Care, Mercy Hospital of Buffalo, Buffalo, New York
| | - Benjamin L Shou
- From the Division of Cardiac Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - Patricia Brown
- From the Division of Cardiac Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - Peter Rycus
- Extracorporeal Life Support Organization, Ann Arbor, Michigan
| | - Marc M Anders
- Division of Critical Care Medicine, Department of Pediatrics, Baylor College of Medicine, Houston, Texas
| | - Akram M Zaaqoq
- Division of Critical Care, Department of Anesthesiology, University of Virginia, Charlottesville, Virginia
| | - Daniel Brodie
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Glenn J R Whitman
- From the Division of Cardiac Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - Sung-Min Cho
- From the Division of Cardiac Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland
- Division of Neurosciences Critical Care, Department of Neurology, Neurosurgery, Anesthesiology and Critical Care Medicine, Johns Hopkins Hospital, Baltimore, Maryland
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7
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Leng A, Shou B, Liu O, Bachina P, Kalra A, Bush EL, Whitman GJR, Cho SM. Machine Learning from Veno-Venous Extracorporeal Membrane Oxygenation Identifies Factors Associated with Neurological Outcomes. Lung 2024; 202:465-470. [PMID: 38814448 PMCID: PMC11417431 DOI: 10.1007/s00408-024-00708-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: 01/12/2024] [Accepted: 05/14/2024] [Indexed: 05/31/2024]
Abstract
BACKGROUND Neurological complications are common in patients receiving veno-venous extracorporeal membrane oxygenation (VV-ECMO) support. We used machine learning (ML) algorithms to identify predictors for neurological outcomes for these patients. METHODS All demographic, clinical, and circuit-related variables were extracted for adults with VV-ECMO support at a tertiary care center from 2016 to 2022. The primary outcome was good neurological outcome (GNO) at discharge defined as a modified Rankin Scale of 0-3. RESULTS Of 99 total VV-ECMO patients (median age = 48 years; 65% male), 37% had a GNO. The best performing ML model achieved an area under the receiver operating characteristic curve of 0.87. Feature importance analysis identified down-trending gas/sweep/blender flow, FiO2, and pump speed as the most salient features for predicting GNO. CONCLUSION Utilizing pre- as well as post-initiation variables, ML identified on-ECMO physiologic and pulmonary conditions that best predicted neurological outcomes.
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Affiliation(s)
- Albert Leng
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, USA
- Division of Cardiac Surgery, Department of Surgery, Heart and Vascular Institute, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Benjamin Shou
- Division of Cardiac Surgery, Department of Surgery, Heart and Vascular Institute, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Olivia Liu
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Preetham Bachina
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Andrew Kalra
- Division of Cardiac Surgery, Department of Surgery, Heart and Vascular Institute, Johns Hopkins University School of Medicine, Baltimore, USA
- Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, USA
| | - Errol L Bush
- Division of Thoracic Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Glenn J R Whitman
- Division of Cardiac Surgery, Department of Surgery, Heart and Vascular Institute, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Sung-Min Cho
- Divisions of Neurosciences Critical Care and Cardiac Surgery, Departments of Neurology, Surgery, Anesthesiology and Critical Care Medicine and Neurosurgery, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Phipps 455, Baltimore, MD, 21287, USA.
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8
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Kalra A, Bachina P, Shou BL, Hwang J, Barshay M, Kulkarni S, Sears I, Eickhoff C, Bermudez CA, Brodie D, Ventetuolo CE, Kim BS, Whitman GJ, Abbasi A, Cho SM. Acute brain injury risk prediction models in venoarterial extracorporeal membrane oxygenation patients with tree-based machine learning: An Extracorporeal Life Support Organization Registry analysis. JTCVS OPEN 2024; 20:64-88. [PMID: 39296456 PMCID: PMC11405982 DOI: 10.1016/j.xjon.2024.06.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/23/2024] [Accepted: 06/03/2024] [Indexed: 09/21/2024]
Abstract
Objective We aimed to determine if machine learning can predict acute brain injury and to identify modifiable risk factors for acute brain injury in patients receiving venoarterial extracorporeal membrane oxygenation. Methods We included adults (age ≥18 years) receiving venoarterial extracorporeal membrane oxygenation or extracorporeal cardiopulmonary resuscitation in the Extracorporeal Life Support Organization Registry (2009-2021). Our primary outcome was acute brain injury: central nervous system ischemia, intracranial hemorrhage, brain death, and seizures. We used Random Forest, CatBoost, LightGBM, and XGBoost machine learning algorithms (10-fold leave-1-out cross-validation) to predict and identify features most important for acute brain injury. We extracted 65 total features: demographics, pre-extracorporeal membrane oxygenation/on-extracorporeal membrane oxygenation laboratory values, and pre-extracorporeal membrane oxygenation/on-extracorporeal membrane oxygenation settings. Results Of 35,855 patients receiving venoarterial extracorporeal membrane oxygenation (nonextracorporeal cardiopulmonary resuscitation) (median age of 57.8 years, 66% were male), 7.7% (n = 2769) experienced acute brain injury. In venoarterial extracorporeal membrane oxygenation (nonextracorporeal cardiopulmonary resuscitation), the area under the receiver operator characteristic curves to predict acute brain injury, central nervous system ischemia, and intracranial hemorrhage were 0.67, 0.67, and 0.62, respectively. The true-positive, true-negative, false-positive, false-negative, positive, and negative predictive values were 33%, 88%, 12%, 67%, 18%, and 94%, respectively, for acute brain injury. Longer extracorporeal membrane oxygenation duration, higher 24-hour extracorporeal membrane oxygenation pump flow, and higher on-extracorporeal membrane oxygenation partial pressure of oxygen were associated with acute brain injury. Of 10,775 patients receiving extracorporeal cardiopulmonary resuscitation (median age of 57.1 years, 68% were male), 16.5% (n = 1787) experienced acute brain injury. The area under the receiver operator characteristic curves for acute brain injury, central nervous system ischemia, and intracranial hemorrhage were 0.72, 0.73, and 0.69, respectively. Longer extracorporeal membrane oxygenation duration, older age, and higher 24-hour extracorporeal membrane oxygenation pump flow were associated with acute brain injury. Conclusions In the largest study predicting neurological complications with machine learning in extracorporeal membrane oxygenation, longer extracorporeal membrane oxygenation duration and higher 24-hour pump flow were associated with acute brain injury in nonextracorporeal cardiopulmonary resuscitation and extracorporeal cardiopulmonary resuscitation venoarterial extracorporeal membrane oxygenation.
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Affiliation(s)
- Andrew Kalra
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Md
- Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pa
| | - Preetham Bachina
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Md
| | - Benjamin L. Shou
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Md
| | - Jaeho Hwang
- Division of Epilepsy, Department of Neurology, Johns Hopkins Hospital, Baltimore, Md
| | - Meylakh Barshay
- Warren Alpert Medical School of Brown University, Providence, RI
| | - Shreyas Kulkarni
- Warren Alpert Medical School of Brown University, Providence, RI
| | - Isaac Sears
- Warren Alpert Medical School of Brown University, Providence, RI
| | - Carsten Eickhoff
- Department of Computer Science, Brown University, Providence, RI
- Faculty of Medicine, University of Tübingen, Tübingen, Germany
- Institute for Bioinformatics and Medical Informatics, University of Tübingen, Tübingen, Germany
| | - Christian A. Bermudez
- Division of Cardiovascular Surgery, Department of Surgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pa
| | - Daniel Brodie
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Md
| | - Corey E. Ventetuolo
- Division of Pulmonary, Critical Care and Sleep Medicine, Warren Alpert Medical School of Brown University, Providence, RI
| | - Bo Soo Kim
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Md
| | - Glenn J.R. Whitman
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Md
| | - Adeel Abbasi
- Division of Pulmonary, Critical Care and Sleep Medicine, Warren Alpert Medical School of Brown University, Providence, RI
| | - Sung-Min Cho
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Md
- Division of Neurosciences Critical Care, Department of Neurology, Neurosurgery, Anesthesiology and Critical Care Medicine, Johns Hopkins Hospital, Baltimore, Md
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9
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Shou BL, Kalra A, Zhou AL, Barbur I, McGoldrick MT, Larson E, Keller SP, Kim BS, Whitman GJR, Cho SM, Bush EL. Impact of Extracorporeal Membrane Oxygenation Bridging Duration on Lung Transplant Outcomes. Ann Thorac Surg 2024; 118:496-503. [PMID: 38740080 PMCID: PMC11284668 DOI: 10.1016/j.athoracsur.2024.04.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 02/25/2024] [Accepted: 04/08/2024] [Indexed: 05/16/2024]
Abstract
BACKGROUND We sought to characterize the association between venovenous extracorporeal membrane oxygenation (VV-ECMO) bridging duration and outcomes in patients listed for lung transplantation. METHODS A retrospective observational study was conducted using the Organ Procurement and Transplantation Network (OPTN) database to identify adults (aged ≥18 years) who were listed for lung transplantation between 2016 and 2020 and were bridged with VV-ECMO. Patients were then stratified into groups, determined by risk inflection points, depending on the amount of time spent on pretransplant ECMO: group 1 (≤5 days), group 2 (6-10 days), group 3 (11-20 days), and group 4 (>20 days). Waiting list survival between groups was analyzed using Fine-Gray competing risk models. Posttransplant survival was compared using Cox regression. RESULTS Of 566 eligible VV-ECMO bridge-to-lung-transplant patients (median age, 54 years, 49% men), 174 (31%), 124 (22%), 130 (23%), and 138 (24%) were categorized as groups 1, 2, 3, and 4, respectively. Overall, median duration of VV-ECMO was 10 days (interquartile range, 1-211 days), and 178 patients (31%) died on the waiting list. In the Fine-Gray model, compared with group 1, patients bridged with longer ECMO durations in group 2 (subdistribution hazard ratio [SHR], 2.95; 95% CI, 1.63-5.35), group 3 (SHR, 3.96; 95% CI, 2.36-6.63), and group 4 (SHR, 4.33; 95% CI, 2.59-7.22, all P < .001) were more likely to die on the waiting list. Of 388 patients receiving a transplant, pretransplant ECMO duration was not associated with 1-year survival in Cox regression. CONCLUSIONS Prolonged duration of ECMO bridging was associated with worse waiting list mortality but did not impact survival after lung transplant. Prioritization of very early transplantation may improve waiting list outcomes in this population.
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Affiliation(s)
- Benjamin L Shou
- Division of Cardiac Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland.
| | - Andrew Kalra
- Division of Cardiac Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland; Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Alice L Zhou
- Division of Cardiac Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Iulia Barbur
- Division of Cardiac Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Matthew T McGoldrick
- Division of Cardiac Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Emily Larson
- Division of Cardiac Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Steven P Keller
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Bo Soo Kim
- Division of Cardiac Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland; Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Glenn J R Whitman
- Division of Cardiac Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Sung-Min Cho
- Division of Cardiac Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland; Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland; Division of Neurosciences Critical Care, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Errol L Bush
- Division of Thoracic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
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10
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Levy LE, Tonna JE. Are Two Better Than One? The Value of Serial Assessments and the Difficulty of Observational Research. Crit Care Med 2024; 52:1169-1172. [PMID: 38869396 DOI: 10.1097/ccm.0000000000006279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2024]
Affiliation(s)
- Lauren E Levy
- Department of Surgery, University of Utah Health, Salt Lake City, UT
| | - Joseph E Tonna
- Department of Surgery, University of Utah Health, Salt Lake City, UT
- Department of Emergency Medicine, University of Utah Health, Salt Lake City, UT
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11
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Malinverni S, Wilmin S, de Longueville D, Sarnelli M, Vermeulen G, Kaabour M, Van Nuffelen M, Hubloue I, Scheyltjens S, Manara A, Mols P, Richard JC, Desmet F. A retrospective comparison of mechanical cardio-pulmonary ventilation and manual bag valve ventilation in non-traumatic out-of-hospital cardiac arrests: A study from the Belgian cardiac arrest registry. Resuscitation 2024; 199:110203. [PMID: 38582442 DOI: 10.1016/j.resuscitation.2024.110203] [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: 01/15/2024] [Revised: 03/20/2024] [Accepted: 03/21/2024] [Indexed: 04/08/2024]
Abstract
BACKGROUND The optimal ventilation modalities to manage out-of-hospital cardiac arrest (OHCA) remain debated. A specific pressure mode called cardio-pulmonary ventilation (CPV) may be used instead of manual bag ventilation (MBV). We sought to analyse the association between mechanical CPV and return of spontaneous circulation (ROSC) in non-traumatic OHCA. METHODS MBV and CPV were retrospectively identified in patients with non-traumatic OHCA from the Belgian Cardiac Arrest Registry. We used a two-level mixed-effects multivariable logistic regression analysis to determine the association between the ventilation modalities and outcomes. The primary and secondary study criteria were ROSC and survival with a Cerebral Performance Category (CPC) score of 1 or 2 at 30 days. Age, sex, initial rhythm, no-flow duration, low-flow duration, OHCA location, use of a mechanical chest compression device and Rankin status before arrest were used as covariables. RESULTS Between January 2017 and December 2021, 2566 patients with OHCA who fulfilled the inclusion criteria were included. 298 (11.6%) patients were mechanically ventilated with CPV whereas 2268 were manually ventilated. The use of CPV was associated with greater probability of ROSC both in the unadjusted (odds ratio: 1.28, 95% confidence interval [CI]: 1.01-1.63; p = 0.043) and adjusted analyses (adjusted odds ratio [aOR]: 2.16, 95%CI 1.37-3.41; p = 0.001) but not with a lower CPC score (aOR: 1.44, 95%CI 0.72-2.89; p = 0.31). CONCLUSIONS Compared with MBV, CPV was associated with an increased risk of ROSC but not with improved an CPC score in patients with OHCA. Prospective randomised trials are needed to challenge these results.
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Affiliation(s)
- Stefano Malinverni
- Emergency Department, Centre Hospitalier Universitaire Saint-Pierre, Université Libre de Bruxelles, Rue Haute 322, 1000 Brussels, Belgium.
| | - Stéphan Wilmin
- Emergency Department, Centre Hospitalier Universitaire Brugmann, Avenue Jean Joseph Crocq 1, 1020 Bruxelles, Belgium
| | - Diane de Longueville
- Emergency Department, Centre Hospitalier Universitaire Saint-Pierre, Université Libre de Bruxelles, Rue Haute 322, 1000 Brussels, Belgium.
| | - Mathilde Sarnelli
- Emergency Department, Centre Hospitalier Universitaire Saint-Pierre, Université Libre de Bruxelles, Rue Haute 322, 1000 Brussels, Belgium
| | - Griet Vermeulen
- Antwerp University Hospital, Drie Eikenstraat 655, 2650 Edegem, Antwerp, Belgium.
| | - Mahmoud Kaabour
- Regional Hospital Center Sambre Meuse, Site Sambre, Rue Chère Voie 75, 5060 Sambreville, Belgium
| | - Marc Van Nuffelen
- University Hospital Erasme, Université Libre de Bruxelles, Route de Lennik 808, B-1070 Brussels, Belgium.
| | - Ives Hubloue
- Department of Emergency Medicine Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Av. du Laerbeek 101, 1090 Brussels, Belgium.
| | - Simon Scheyltjens
- Department of Emergency Medicine Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Av. du Laerbeek 101, 1090 Brussels, Belgium.
| | - Alessandro Manara
- Europe Hospitals, Saint Elisabeth Site, Avenue De Fré 206, 1180 Uccle, Belgium.
| | - Pierre Mols
- Emergency Department, Centre Hospitalier Universitaire Saint-Pierre, Université Libre de Bruxelles, Rue Haute 322, 1000 Brussels, Belgium
| | - Jean-Christophe Richard
- Médecine Intensive - Réanimation - Vent'Lab, CHU d'Angers - Angers, France; Med2Lab, ALMS, Antony, France
| | - Francis Desmet
- Emergency Department, AZ Groeninge Hospital, President Kennedylaan 4, 8500 Kortrijk, Belgium.
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12
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Kopra J, Litonius E, Pekkarinen PT, Laitinen M, Heinonen JA, Fontanelli L, Skrifvars MB. Oxygenation and ventilation during prolonged experimental cardiopulmonary resuscitation with either continuous or 30:2 compression-to-ventilation ratios together with 10 cmH 20 positive end-expiratory pressure. Intensive Care Med Exp 2024; 12:36. [PMID: 38607459 PMCID: PMC11014827 DOI: 10.1186/s40635-024-00620-z] [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: 12/20/2023] [Accepted: 04/01/2024] [Indexed: 04/13/2024] Open
Abstract
BACKGROUND In refractory out-of-hospital cardiac arrest, the patient is commonly transported to hospital with mechanical continuous chest compressions (CCC). Limited data are available on the optimal ventilation strategy. Accordingly, we compared arterial oxygenation and haemodynamics during manual asynchronous continuous ventilation and compressions with a 30:2 compression-to-ventilation ratio together with the use of 10 cmH2O positive end-expiratory pressure (PEEP). METHODS Intubated and anaesthetized landrace pigs with electrically induced ventricular fibrillation were left untreated for 5 min (n = 31, weight ca. 55 kg), after which they were randomized to either the CCC group or the 30:2 group with the the LUCAS® 2 piston device and bag-valve ventilation with 100% oxygen targeting a tidal volume of 8 ml/kg with a PEEP of 10 cmH2O for 35 min. Arterial blood samples were analysed every 5 min, vital signs, near-infrared spectroscopy and electrical impedance tomography (EIT) were measured continuously, and post-mortem CT scans of the lungs were obtained. RESULTS The arterial blood values (median + interquartile range) at the 30-min time point were as follows: PaO2: 180 (86-302) mmHg for the 30:2 group; 70 (49-358) mmHg for the CCC group; PaCO2: 41 (29-53) mmHg for the 30:2 group; 44 (21-67) mmHg for the CCC group; and lactate: 12.8 (10.4-15.5) mmol/l for the 30:2 group; 14.7 (11.8-16.1) mmol/l for the CCC group. The differences were not statistically significant. In linear mixed models, there were no significant differences between the groups. The mean arterial pressures from the femoral artery, end-tidal CO2, distributions of ventilation from EIT and mean aeration of lung tissue in post-mortem CTs were similar between the groups. Eight pneumothoraces occurred in the CCC group and 2 in the 30:2 group, a statistically significant difference (p = 0.04). CONCLUSIONS The 30:2 and CCC protocols with a PEEP of 10 cmH2O resulted in similar gas exchange and vital sign outcomes in an experimental model of prolonged cardiac arrest with mechanical compressions, but the CCC protocol resulted in more post-mortem pneumothoraces.
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Affiliation(s)
- Jukka Kopra
- Department of Emergency Care and Services, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
| | - Erik Litonius
- Division of Anaesthesiology, Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Pirkka T Pekkarinen
- Division of Intensive Care, Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Merja Laitinen
- VetCT Teleconsulting-Teleradiology Small Animal Team, Helsinki, Finland
| | - Juho A Heinonen
- Division of Intensive Care, Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Centre for Prehospital Emergency Care and Emergency Medicine, Päijät-Häme Central Hospital, Lahti, Finland
| | - Luca Fontanelli
- Department of Clinical-Surgical, Diagnostic and Paediatric Sciences, Unit of Anaesthesia and Intensive Care, University of Pavia, Pavia, Italy
| | - Markus B Skrifvars
- Department of Emergency Care and Services, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
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13
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Winiszewski H, Vieille T, Guinot PG, Nesseler N, Le Berre M, Crognier L, Roche AC, Fellahi JL, D'Ostrevy N, Ltaief Z, Didier J, Arab OA, Meslin S, Scherrer V, Besch G, Monnier A, Piton G, Kimmoun A, Capellier G. Oxygenation management during veno-arterial ECMO support for cardiogenic shock: a multicentric retrospective cohort study. Ann Intensive Care 2024; 14:56. [PMID: 38597975 PMCID: PMC11006645 DOI: 10.1186/s13613-024-01286-2] [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: 12/13/2023] [Accepted: 04/02/2024] [Indexed: 04/11/2024] Open
Abstract
BACKGOUND Hyperoxemia is common and associated with poor outcome during veno-arterial extracorporeal membrane oxygenation (VA ECMO) support for cardiogenic shock. However, little is known about practical daily management of oxygenation. Then, we aim to describe sweep gas oxygen fraction (FSO2), postoxygenator oxygen partial pressure (PPOSTO2), inspired oxygen fraction (FIO2), and right radial arterial oxygen partial pressure (PaO2) between day 1 and day 7 of peripheral VA ECMO support. We also aim to evaluate the association between oxygenation parameters and outcome. In this retrospective multicentric study, each participating center had to report data on the last 10 eligible patients for whom the ICU stay was terminated. Patients with extracorporeal cardiopulmonary resuscitation were excluded. Primary endpoint was individual mean FSO2 during the seven first days of ECMO support (FSO2 mean (day 1-7)). RESULTS Between August 2019 and March 2022, 139 patients were enrolled in 14 ECMO centers in France, and one in Switzerland. Among them, the median value for FSO2 mean (day 1-7) was 70 [57; 79] % but varied according to center case volume. Compared to high volume centers, centers with less than 30 VA-ECMO runs per year were more likely to maintain FSO2 ≥ 70% (OR 5.04, CI 95% [1.39; 20.4], p = 0.017). Median value for right radial PaO2 mean (day 1-7) was 114 [92; 145] mmHg, and decreased from 125 [86; 207] mmHg at day 1, to 97 [81; 133] mmHg at day 3 (p < 0.01). Severe hyperoxemia (i.e. right radial PaO2 ≥ 300 mmHg) occurred in 16 patients (12%). PPOSTO2, a surrogate of the lower body oxygenation, was measured in only 39 patients (28%) among four centers. The median value of PPOSTO2 mean (day 1-7) value was 198 [169; 231] mmHg. By multivariate analysis, age (OR 1.07, CI95% [1.03-1.11], p < 0.001), FSO2 mean (day 1-3)(OR 1.03 [1.00-1.06], p = 0.039), and right radial PaO2 mean (day 1-3) (OR 1.03, CI95% [1.00-1.02], p = 0.023) were associated with in-ICU mortality. CONCLUSION In a multicentric cohort of cardiogenic shock supported by VA ECMO, the median value for FSO2 mean (day 1-7) was 70 [57; 79] %. PPOSTO2 monitoring was infrequent and revealed significant hyperoxemia. Higher FSO2 mean (day 1-3) and right radial PaO2 mean (day 1-3) were independently associated with in-ICU mortality.
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Affiliation(s)
- Hadrien Winiszewski
- Service de réanimation médicale, CHU Besançon, Besançon, France.
- Research Unit EA 3920 and SFR FED 4234, University of Franche Comté, Besancon, France.
| | | | | | - Nicolas Nesseler
- Department of Anesthesia and Critical Care, University Hospital of Rennes, Pontchaillou, Rennes, France
| | - Mael Le Berre
- Service de réanimation médicale, CHU Besançon, Besançon, France
| | - Laure Crognier
- Intensive Care Unit, Anesthesia and Critical Care Department, Rangueil University Hospital, Toulouse, France
| | - Anne-Claude Roche
- Anesthesia, Intensive Care and Perioperative Medicine, Nouvel Hôpital Civil, Strasbourg University Hospital, Strasbourg, France
| | - Jean-Luc Fellahi
- Service d'Anesthésie-Réanimation, Hôpital Louis Pradel, Hospices Civils de Lyon, Lyon, France
| | - Nicolas D'Ostrevy
- Cardiac Surgery Department, Montpied Hospital, University Hospital of Clermont-Ferrand, Clermont-Ferrand, France
| | - Zied Ltaief
- Department of Adult Intensive Care Medicine, Lausanne University Hospital and Lausanne University, Lausanne, 1011, Switzerland
| | - Juliette Didier
- Service de médecine intensive réanimation, CHU Pitié Salpêtrière, Paris, France
| | - Osama Abou Arab
- Department of Anaesthesia and Critical Care Medicine, Amiens University Medical Center, Amiens, France
| | - Simon Meslin
- Anesthesiology and Critical Care Medicine Department, Hôpital Européen Georges Pompidou, APHP, Paris, France
| | - Vincent Scherrer
- Department of Anaesthesiology and Critical Care, CHU Rouen, Rouen, F-76000, France
| | - Guillaume Besch
- Département d'Anesthésie Réanimation Chirurgicale, Université de Franche-Comté, CHU Besançon, CIC Inserm 1431, Besançon, EA3920, F-25000, France
| | - Alexandra Monnier
- Service de Médecine Intensive-Réanimation Médicale, CHU Strasbourg, Nouvel Hôpital Civil, Université de Strasbourg, Strasbourg, 67000, France
| | - Gael Piton
- Service de réanimation médicale, CHU Besançon, Besançon, France
| | - Antoine Kimmoun
- Service de médecine intensive réanimation, CHU Nancy, Créteil, France
| | - Gilles Capellier
- Service de réanimation médicale, CHU Besançon, Besançon, France
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Faculty of Medicine, Nursing and Health Sciences, Clayton, Australia
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14
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Premraj L, Brown A, Fraser JF, Pellegrino V, Pilcher D, Burrell A. Oxygenation During Venoarterial Extracorporeal Membrane Oxygenation: Physiology, Current Evidence, and a Pragmatic Approach to Oxygen Titration. Crit Care Med 2024; 52:637-648. [PMID: 38059745 DOI: 10.1097/ccm.0000000000006134] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Abstract
OBJECTIVES This review aims to: 1) identify the key circuit and patient factors affecting systemic oxygenation, 2) summarize the literature reporting the association between hyperoxia and patient outcomes, and 3) provide a pragmatic approach to oxygen titration, in patients undergoing peripheral venoarterial extracorporeal membrane oxygenation (ECMO). DATA SOURCES Searches were performed using PubMed, SCOPUS, Medline, and Google Scholar. STUDY SELECTION All observational and interventional studies investigating the association between hyperoxia, and clinical outcomes were included, as well as guidelines from the Extracorporeal Life Support Organization. DATA EXTRACTION Data from relevant literature was extracted, summarized, and integrated into a concise narrative review. For ease of reference a summary of relevant studies was also produced. DATA SYNTHESIS The extracorporeal circuit and the native cardiorespiratory circuit both contribute to systemic oxygenation during venoarterial ECMO. The ECMO circuit's contribution to systemic oxygenation is, in practice, largely determined by the ECMO blood flow, whereas the native component of systemic oxygenation derives from native cardiac output and residual respiratory function. Interactions between ECMO outflow and native cardiac output (as in differential hypoxia), the presence of respiratory support, and physiologic parameters affecting blood oxygen carriage also modulate overall oxygen exposure during venoarterial ECMO. Physiologically those requiring venoarterial ECMO are prone to hyperoxia. Hyperoxia has a variety of definitions, most commonly Pa o2 greater than 150 mm Hg. Severe hypoxia (Pa o2 > 300 mm Hg) is common, seen in 20%. Early severe hyperoxia, as well as cumulative hyperoxia exposure was associated with in-hospital mortality, even after adjustment for disease severity in both venoarterial ECMO and extracorporeal cardiopulmonary resuscitation. A pragmatic approach to oxygenation during peripheral venoarterial ECMO involves targeting a right radial oxygen saturation target of 94-98%, and in selected patients, titration of the fraction of oxygen in the mixture via the air-oxygen blender to target postoxygenator Pa o2 of 150-300 mm Hg. CONCLUSIONS Hyperoxia results from a range of ECMO circuit and patient-related factors. It is common during peripheral venoarterial ECMO, and its presence is associated with poor outcome. A pragmatic approach that avoids hyperoxia, while also preventing hypoxia has been described for patients receiving peripheral venoarterial ECMO.
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Affiliation(s)
- Lavienraj Premraj
- Griffith University School of Medicine and Dentistry, Brisbane, QLD, Australia
- Critical Care Research Group, The Prince Charles Hospital, Brisbane, QLD, Australia
- Hopkins Education, Research, and Advancement in Life Support Devices (HERALD) Group, Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
- Department of Intensive Care, The Alfred Hospital, Melbourne, VIC, Australia
- Department of Critical Care Medicine, St Vincent's Hospital Melbourne, Melbourne, VIC, Australia
- Australian and New Zealand Intensive Care Research Centre, Department of Epidemiology and Preventive Medicine, School of Public Health, Monash University, Melbourne, VIC, Australia
- The University of Queensland, Faculty of Medicine, Brisbane, QLD, Australia
- Australian Centre for Health Services Innovation (AusHSI) and Centre for Healthcare Transformation, School of Public Health & Social Work, Queensland University of Technology (QUT), Brisbane, QLD, Australia
- St Andrew's War Memorial Hospital, UnitingCare, Brisbane, QLD, Australia
- Australian and New Zealand Intensive Care Research Centre, Monash University, Melbourne, VIC, Australia
- The Australian and New Zealand Intensive Care Society (ANZICS), Centre for Outcome and Resources Evaluation, Melbourne, VIC, Australia
| | - Alastair Brown
- Griffith University School of Medicine and Dentistry, Brisbane, QLD, Australia
- Critical Care Research Group, The Prince Charles Hospital, Brisbane, QLD, Australia
- Hopkins Education, Research, and Advancement in Life Support Devices (HERALD) Group, Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
- Department of Intensive Care, The Alfred Hospital, Melbourne, VIC, Australia
- Department of Critical Care Medicine, St Vincent's Hospital Melbourne, Melbourne, VIC, Australia
- Australian and New Zealand Intensive Care Research Centre, Department of Epidemiology and Preventive Medicine, School of Public Health, Monash University, Melbourne, VIC, Australia
- The University of Queensland, Faculty of Medicine, Brisbane, QLD, Australia
- Australian Centre for Health Services Innovation (AusHSI) and Centre for Healthcare Transformation, School of Public Health & Social Work, Queensland University of Technology (QUT), Brisbane, QLD, Australia
- St Andrew's War Memorial Hospital, UnitingCare, Brisbane, QLD, Australia
- Australian and New Zealand Intensive Care Research Centre, Monash University, Melbourne, VIC, Australia
- The Australian and New Zealand Intensive Care Society (ANZICS), Centre for Outcome and Resources Evaluation, Melbourne, VIC, Australia
| | - John F Fraser
- Critical Care Research Group, The Prince Charles Hospital, Brisbane, QLD, Australia
| | - Vincent Pellegrino
- Department of Intensive Care, The Alfred Hospital, Melbourne, VIC, Australia
| | - David Pilcher
- Department of Intensive Care, The Alfred Hospital, Melbourne, VIC, Australia
- Australian and New Zealand Intensive Care Research Centre, Department of Epidemiology and Preventive Medicine, School of Public Health, Monash University, Melbourne, VIC, Australia
- Australian and New Zealand Intensive Care Research Centre, Monash University, Melbourne, VIC, Australia
- The Australian and New Zealand Intensive Care Society (ANZICS), Centre for Outcome and Resources Evaluation, Melbourne, VIC, Australia
| | - Aidan Burrell
- Department of Intensive Care, The Alfred Hospital, Melbourne, VIC, Australia
- Australian and New Zealand Intensive Care Research Centre, Department of Epidemiology and Preventive Medicine, School of Public Health, Monash University, Melbourne, VIC, Australia
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15
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Joye R, Cousin VL, Wacker J, Hoskote A, Gebistorf F, Tonna JE, Rycus PT, Thiagarajan RR, Polito A. Death by Neurologic Criteria in Children Undergoing Extracorporeal Cardiopulmonary Resuscitation: Retrospective Extracorporeal Life Support Organization Registry Study, 2017-2021. Pediatr Crit Care Med 2024; 25:e149-e157. [PMID: 37982691 PMCID: PMC10903996 DOI: 10.1097/pcc.0000000000003406] [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] [Indexed: 11/21/2023]
Abstract
OBJECTIVES To determine factors associated with brain death in children treated with extracorporeal cardiopulmonary resuscitation (E-cardiopulmonary resuscitation). DESIGN Retrospective database study. SETTINGS Data reported to the Extracorporeal Life Support Organization (ELSO), 2017-2021. PATIENTS Children supported with venoarterial extracorporeal membrane oxygenation (ECMO) for E-cardiopulmonary resuscitation. INTERVENTION None. MEASUREMENTS AND MAIN RESULTS Data from the ELSO Registry included patient characteristics, blood gas values, support therapies, and complications. The primary outcome was brain death (i.e., death by neurologic criteria [DNC]). There were 2,209 children (≥ 29 d to < 18 yr of age) included. The reason for ECMO discontinuation was DNC in 138 patients (6%), and other criteria for death occurred in 886 patients (40%). Recovery occurred in 1,109 patients (50%), and the remaining 76 patients (4%) underwent transplantation. Fine and Gray proportional subdistribution hazards' regression analyses were used to examine the association between variables of interest and DNC. Age greater than 1 year ( p < 0.001), arterial blood carbon dioxide tension (Pa co2 ) greater than 82 mm Hg ( p = 0.022), baseline lactate greater than 15 mmol/L ( p = 0.034), and lactate 24 hours after cannulation greater than 3.8 mmol/L ( p < 0.001) were independently associated with greater hazard of subsequent DNC. In contrast, the presence of cardiac disease was associated with a lower hazard of subsequent DNC (subdistribution hazard ratio 0.57 [95% CI, 0.39-0.83] p = 0.004). CONCLUSIONS In children undergoing E-cardiopulmonary resuscitation, older age, pre-event hypercarbia, higher before and during ECMO lactate levels are associated with DNC. Given the association of DNC with hypercarbia following cardiac arrest, the role of Pa co2 management in E-cardiopulmonary resuscitation warrants further studies.
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Affiliation(s)
- Raphael Joye
- Pediatric Cardiology Unit, Department of Woman, Child, and Adolescent Medicine, Geneva University Hospital, Geneva, Switzerland
| | - Vladimir L Cousin
- Pediatric Intensive Care Unit, Department of Woman, Child, and Adolescent Medicine, Geneva University Hospital, Geneva, Switzerland
| | - Julie Wacker
- Pediatric Cardiology Unit, Department of Woman, Child, and Adolescent Medicine, Geneva University Hospital, Geneva, Switzerland
| | - Aparna Hoskote
- Cardiac Intensive Care Unit, Great Ormond Street Hospital for Children NHS Foundation Trust, London, United Kingdom
| | - Fabienne Gebistorf
- Pediatric Intensive Care Unit, Department of Woman, Child, and Adolescent Medicine, Geneva University Hospital, Geneva, Switzerland
| | - Joseph E Tonna
- Division of Cardiothoracic Surgery, Department of Surgery, University of Utah Health, Salt Lake City, UT
- Department of Emergency Medicine, University of Utah Health, Salt Lake City, UT
| | - Peter T Rycus
- Extracorporeal Life Support Organization, Ann Arbor, MI
| | - Ravi R Thiagarajan
- Division of Cardiac Critical Care, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | - Angelo Polito
- Pediatric Intensive Care Unit, Department of Woman, Child, and Adolescent Medicine, Geneva University Hospital, Geneva, Switzerland
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16
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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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17
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Kang JK, Darby Z, Bleck TP, Whitman GJR, Kim BS, Cho SM. Post-Cardiac Arrest Care in Adult Patients After Extracorporeal Cardiopulmonary Resuscitation. Crit Care Med 2024; 52:483-494. [PMID: 37921532 PMCID: PMC10922987 DOI: 10.1097/ccm.0000000000006102] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
OBJECTIVES Extracorporeal cardiopulmonary resuscitation (ECPR) serves as a lifesaving intervention for patients experiencing refractory cardiac arrest. With its expanding usage, there is a burgeoning focus on improving patient outcomes through optimal management in the acute phase after cannulation. This review explores systematic post-cardiac arrest management strategies, associated complications, and prognostication in ECPR patients. DATA SOURCES A PubMed search from inception to 2023 using search terms such as post-cardiac arrest care, ICU management, prognostication, and outcomes in adult ECPR patients was conducted. STUDY SELECTION Selection includes original research, review articles, and guidelines. DATA EXTRACTION Information from relevant publications was reviewed, consolidated, and formulated into a narrative review. DATA SYNTHESIS We found limited data and no established clinical guidelines for post-cardiac arrest care after ECPR. In contrast to non-ECPR patients where systematic post-cardiac arrest care is shown to improve the outcomes, there is no high-quality data on this topic after ECPR. This review outlines a systematic approach, albeit limited, for ECPR care, focusing on airway/breathing and circulation as well as critical aspects of ICU care, including analgesia/sedation, mechanical ventilation, early oxygen/C o2 , and temperature goals, nutrition, fluid, imaging, and neuromonitoring strategy. We summarize common on-extracorporeal membrane oxygenation complications and the complex nature of prognostication and withdrawal of life-sustaining therapy in ECPR. Given conflicting outcomes in ECPR randomized controlled trials focused on pre-cannulation care, a better understanding of hemodynamic, neurologic, and metabolic abnormalities and early management goals may be necessary to improve their outcomes. CONCLUSIONS Effective post-cardiac arrest care during the acute phase of ECPR is paramount in optimizing patient outcomes. However, a dearth of evidence to guide specific management strategies remains, indicating the necessity for future research in this field.
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Affiliation(s)
- Jin Kook Kang
- Division of Cardiac Surgery, Department of Surgery, Johns
Hopkins Hospital, Baltimore, MD
| | - Zachary Darby
- Division of Cardiac Surgery, Department of Surgery, Johns
Hopkins Hospital, Baltimore, MD
| | - Thomas P. Bleck
- Davee Department of Neurology, Northwestern University
Feinberg School of Medicine, Chicago IL 60611
| | - Glenn J. R. Whitman
- Division of Cardiac Surgery, Department of Surgery, Johns
Hopkins Hospital, Baltimore, MD
| | - Bo Soo Kim
- Division of Cardiac Surgery, Department of Surgery, Johns
Hopkins Hospital, Baltimore, MD
- Division of Pulmonary and Critical Care Medicine, Johns
Hopkins Hospital, Baltimore, MD
| | - Sung-Min Cho
- Division of Cardiac Surgery, Department of Surgery, Johns
Hopkins Hospital, Baltimore, MD
- Division of Neurosciences Critical Care, Departments of
Neurology, Surgery, Anesthesiology and Critical Care Medicine, Johns Hopkins
Hospital, Baltimore, MD
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18
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Ciullo AL, Tonna JE. The state of emergency department extracorporeal cardiopulmonary resuscitation: Where are we now, and where are we going? J Am Coll Emerg Physicians Open 2024; 5:e13101. [PMID: 38260003 PMCID: PMC10800292 DOI: 10.1002/emp2.13101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 01/24/2024] Open
Abstract
Extracorporeal cardiopulmonary resuscitation (ECPR) has emerged in the context of the emergency department as a life-saving therapy for patients with refractory cardiac arrest. This review examines the utility of ECPR based on current evidence gleaned from three pivotal trials: the ARREST trial, the Prague study, and the INCEPTION trial. We also discuss several considerations in the care of these complex patients, including prehospital strategy, patient selection, and postcardiac arrest management. Collectively, the evidence from these trials emphasizes the growing significance of ECPR as a viable intervention, highlighting its potential for improved outcomes and survival rates in patients with refractory cardiac arrest when employed judiciously. As such, these findings advocate the need for further research and protocol development to optimize its use in diverse clinical scenarios.
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Affiliation(s)
- Anna L. Ciullo
- Division of Cardiothoracic SurgeryDepartment of SurgeryUniversity of Utah HealthSalt Lake CityUtahUSA
- Division of Emergency MedicineDepartment of SurgeryUniversity of Utah HealthSalt Lake CityUtahUSA
| | - Joseph E. Tonna
- Division of Cardiothoracic SurgeryDepartment of SurgeryUniversity of Utah HealthSalt Lake CityUtahUSA
- Division of Emergency MedicineDepartment of SurgeryUniversity of Utah HealthSalt Lake CityUtahUSA
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19
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Kalra A, Bachina P, Shou BL, Hwang J, Barshay M, Kulkarni S, Sears I, Eickhoff C, Bermudez CA, Brodie D, Ventetuolo CE, Kim BS, Whitman GJR, Abbasi A, Cho SM. Predicting Acute Brain Injury in Venoarterial Extracorporeal Membrane Oxygenation Patients with Tree-Based Machine Learning: Analysis of the Extracorporeal Life Support Organization Registry. RESEARCH SQUARE 2024:rs.3.rs-3848514. [PMID: 38260374 PMCID: PMC10802703 DOI: 10.21203/rs.3.rs-3848514/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: 01/24/2024]
Abstract
Objective To determine if machine learning (ML) can predict acute brain injury (ABI) and identify modifiable risk factors for ABI in venoarterial extracorporeal membrane oxygenation (VA-ECMO) patients. Design Retrospective cohort study of the Extracorporeal Life Support Organization (ELSO) Registry (2009-2021). Setting International, multicenter registry study of 676 ECMO centers. Patients Adults (≥18 years) supported with VA-ECMO or extracorporeal cardiopulmonary resuscitation (ECPR). Interventions None. Measurements and Main Results Our primary outcome was ABI: central nervous system (CNS) ischemia, intracranial hemorrhage (ICH), brain death, and seizures. We utilized Random Forest, CatBoost, LightGBM and XGBoost ML algorithms (10-fold leave-one-out cross-validation) to predict and identify features most important for ABI. We extracted 65 total features: demographics, pre-ECMO/on-ECMO laboratory values, and pre-ECMO/on-ECMO settings.Of 35,855 VA-ECMO (non-ECPR) patients (median age=57.8 years, 66% male), 7.7% (n=2,769) experienced ABI. In VA-ECMO (non-ECPR), the area under the receiver-operator characteristics curves (AUC-ROC) to predict ABI, CNS ischemia, and ICH was 0.67, 0.67, and 0.62, respectively. The true positive, true negative, false positive, false negative, positive, and negative predictive values were 33%, 88%, 12%, 67%, 18%, and 94%, respectively for ABI. Longer ECMO duration, higher 24h ECMO pump flow, and higher on-ECMO PaO2 were associated with ABI.Of 10,775 ECPR patients (median age=57.1 years, 68% male), 16.5% (n=1,787) experienced ABI. The AUC-ROC for ABI, CNS ischemia, and ICH was 0.72, 0.73, and 0.69, respectively. The true positive, true negative, false positive, false negative, positive, and negative predictive values were 61%, 70%, 30%, 39%, 29% and 90%, respectively, for ABI. Longer ECMO duration, younger age, and higher 24h ECMO pump flow were associated with ABI. Conclusions This is the largest study predicting neurological complications on sufficiently powered international ECMO cohorts. Longer ECMO duration and higher 24h pump flow were associated with ABI in both non-ECPR and ECPR VA-ECMO.
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Affiliation(s)
| | | | | | | | | | | | - Isaac Sears
- Warren Alpert Medical School of Brown University
| | | | | | | | | | - Bo Soo Kim
- Johns Hopkins University School of Medicine
| | | | - Adeel Abbasi
- Warren Alpert Medical School of Brown University
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20
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Tigano S, Caruso A, Liotta C, LaVia L, Vargas M, Romagnoli S, Landoni G, Sanfilippo F. Exposure to severe hyperoxemia worsens survival and neurological outcome in patients supported by veno-arterial extracorporeal membrane oxygenation: A meta-analysis. Resuscitation 2024; 194:110071. [PMID: 38061577 DOI: 10.1016/j.resuscitation.2023.110071] [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: 09/21/2023] [Revised: 11/14/2023] [Accepted: 11/16/2023] [Indexed: 01/16/2024]
Abstract
BACKGROUND Veno-arterial Extracorporeal Membrane Oxygenation (VA-ECMO) is a rescue treatment in refractory cardiogenic shock (CS) or refractory cardiac arrest (CA). Exposure to hyperoxemia is common during VA-ECMO, and its impact on patient's outcome remains unclear. METHODS We conducted a systematic review (PubMed and Scopus) and meta-analysis investigating the effects of exposure to severe hyperoxemia on mortality and poor neurological outcome in patients supported by VA-ECMO. When both adjusted and unadjusted Odds Ratio (OR) were provided, we used the adjusted one. Results are reported as OR and 95% confidence interval (CI). Subgroup analyses were conducted according to VA-ECMO indication and hyperoxemia thresholds. RESULTS Data from 10 observational studies were included. Nine studies reported data on mortality (n = 5 refractory CA, n = 4 CS), and 4 on neurological outcome. As compared to normal oxygenation levels, exposure to severe hyperoxemia was associated with higher mortality (nine studies; OR: 1.80 [1.16-2.78]; p = 0.009; I2 = 83%; low certainty of evidence) and worse neurological outcome (four studies; OR: 1.97 [1.30-2.96]; p = 0.001; I2 = 0%; low certainty of evidence). Magnitude and effect of these findings remained valid in subgroup analyses conducted according to different hyperoxemia thresholds (>200 or >300 mmHg) and VA-ECMO indication, although the association with mortality remained uncertain in the refractory CA population (p = 0.13). Analysis restricted to studies providing adjusted OR data confirmed an increased likelihood of poorer neurological outcome (three studies; OR: 2.11 [1.32-3.38]; p = 0.002) in patients exposed to severe hyperoxemia but did not suggest higher mortality (five studies; OR: 1.68 [0.89-3.18]; p = 0.11). CONCLUSIONS Severe hyperoxemia exposure after initiation of VA-ECMO may be associated with an almost doubled increased probability of poor neurological outcome and mortality. Clinical efforts should be made to avoid severe hyperoxemia during VA-ECMO support.
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Affiliation(s)
- Stefano Tigano
- School of Anaesthesia and Intensive Care, University Hospital "G. Rodolico", University of Catania, Catania, Italy
| | - Alessandro Caruso
- School of Anaesthesia and Intensive Care, University Hospital "G. Rodolico", University of Catania, Catania, Italy
| | - Calogero Liotta
- School of Anaesthesia and Intensive Care, University "Magna Graecia", Catanzaro, Italy
| | - Luigi LaVia
- Department of Anaesthesia and Intensive Care, A.O.U. "Policlinico-San Marco", Catania, Italy
| | - Maria Vargas
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples Italy
| | - Stefano Romagnoli
- Department of Health Science, Section of Anaesthesia and Intensive Care, University of Florence, Florence, Italy; Department of Anetshesia and Critical Care, Azienda Ospedaliero-Universitaria Careggi, Florence, Italy.
| | - Giovanni Landoni
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy; Faculty of Medicine, Vita-Salute San Raffaele University, Milan, Italy.
| | - Filippo Sanfilippo
- Department of Anaesthesia and Intensive Care, A.O.U. "Policlinico-San Marco", Catania, Italy; Department of General Surgery and Medical-Surgical Specialties, Section of Anesthesia and Intensive Care, University of Catania, Catania, Italy.
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21
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Trummer G, Benk C, Pooth JS, Wengenmayer T, Supady A, Staudacher DL, Damjanovic D, Lunz D, Wiest C, Aubin H, Lichtenberg A, Dünser MW, Szasz J, Dos Reis Miranda D, van Thiel RJ, Gummert J, Kirschning T, Tigges E, Willems S, Beyersdorf F. Treatment of Refractory Cardiac Arrest by Controlled Reperfusion of the Whole Body: A Multicenter, Prospective Observational Study. J Clin Med 2023; 13:56. [PMID: 38202063 PMCID: PMC10780178 DOI: 10.3390/jcm13010056] [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: 11/09/2023] [Revised: 12/14/2023] [Accepted: 12/15/2023] [Indexed: 01/12/2024] Open
Abstract
Background: Survival following cardiac arrest (CA) remains poor after conventional cardiopulmonary resuscitation (CCPR) (6-26%), and the outcomes after extracorporeal cardiopulmonary resuscitation (ECPR) are often inconsistent. Poor survival is a consequence of CA, low-flow states during CCPR, multi-organ injury, insufficient monitoring, and delayed treatment of the causative condition. We developed a new strategy to address these issues. Methods: This all-comers, multicenter, prospective observational study (69 patients with in- and out-of-hospital CA (IHCA and OHCA) after prolonged refractory CCPR) focused on extracorporeal cardiopulmonary support, comprehensive monitoring, multi-organ repair, and the potential for out-of-hospital cannulation and treatment. Result: The overall survival rate at hospital discharge was 42.0%, and a favorable neurological outcome (CPC 1+2) at 90 days was achieved for 79.3% of survivors (CPC 1+2 survival 33%). IHCA survival was very favorable (51.7%), as was CPC 1+2 survival at 90 days (41%). Survival of OHCA patients was 35% and CPC 1+2 survival at 90 days was 28%. The subgroup of OHCA patients with pre-hospital cannulation showed a superior survival rate of 57.1%. Conclusions: This new strategy focusing on repairing damage to multiple organs appears to improve outcomes after CA, and these findings should provide a sound basis for further research in this area.
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Affiliation(s)
- Georg Trummer
- Department of Cardiovascular Surgery, University Medical Center Freiburg, University of Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany; (G.T.)
- Faculty of Medicine, Albert-Ludwigs-University Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany
| | - Christoph Benk
- Department of Cardiovascular Surgery, University Medical Center Freiburg, University of Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany; (G.T.)
- Faculty of Medicine, Albert-Ludwigs-University Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany
| | - Jan-Steffen Pooth
- Faculty of Medicine, Albert-Ludwigs-University Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany
- Department of Emergency Medicine, Medical Center—University of Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany
| | - Tobias Wengenmayer
- Faculty of Medicine, Albert-Ludwigs-University Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany
- Interdisciplinary Medical Intensive Care, Medical Center—University of Freiburg, 79106 Freiburg, Germany
| | - Alexander Supady
- Faculty of Medicine, Albert-Ludwigs-University Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany
- Interdisciplinary Medical Intensive Care, Medical Center—University of Freiburg, 79106 Freiburg, Germany
| | - Dawid L. Staudacher
- Faculty of Medicine, Albert-Ludwigs-University Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany
- Interdisciplinary Medical Intensive Care, Medical Center—University of Freiburg, 79106 Freiburg, Germany
| | - Domagoj Damjanovic
- Department of Cardiovascular Surgery, University Medical Center Freiburg, University of Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany; (G.T.)
- Faculty of Medicine, Albert-Ludwigs-University Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany
| | - Dirk Lunz
- Department of Anesthesiology, University Medical Center, 93042 Regensburg, Germany;
| | - Clemens Wiest
- Department of Internal Medicine II, University Medical Center, 93042 Regensburg, Germany
| | - Hug Aubin
- Department of Cardiac Surgery, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, 40225 Düsseldorf, Germany (A.L.)
| | - Artur Lichtenberg
- Department of Cardiac Surgery, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, 40225 Düsseldorf, Germany (A.L.)
| | - Martin W. Dünser
- Department of Anesthesiology and Intensive Care Medicine, Kepler University Hospital and Johannes Kepler University, 4020 Linz, Austria
| | - Johannes Szasz
- Department of Anesthesiology and Intensive Care Medicine, Kepler University Hospital and Johannes Kepler University, 4020 Linz, Austria
| | - Dinis Dos Reis Miranda
- Department of Adult Intensive Care, Erasmus MC University Medical Center, 3015 GD Rotterdam, The Netherlands
| | - Robert J. van Thiel
- Department of Adult Intensive Care, Erasmus MC University Medical Center, 3015 GD Rotterdam, The Netherlands
| | - Jan Gummert
- Clinic for Thoracic and Cardiovascular Surgery, Heart and Diabetes Center NRW, University Hospital of the Ruhr University Bochum, 44791 Bad Oeynhausen, Germany
| | - Thomas Kirschning
- Clinic for Thoracic and Cardiovascular Surgery, Heart and Diabetes Center NRW, University Hospital of the Ruhr University Bochum, 44791 Bad Oeynhausen, Germany
| | - Eike Tigges
- Asklepios Klinik St. Georg, Heart and Vascular Center, Department of Cardiology and Intensive Care Medicine, 20099 Hamburg, Germany
| | - Stephan Willems
- Asklepios Klinik St. Georg, Heart and Vascular Center, Department of Cardiology and Intensive Care Medicine, 20099 Hamburg, Germany
| | - Friedhelm Beyersdorf
- Department of Cardiovascular Surgery, University Medical Center Freiburg, University of Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany; (G.T.)
- Faculty of Medicine, Albert-Ludwigs-University Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany
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22
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Suverein MM, Maessen JG, van de Poll MC. Extracorporeal cardiopulmonary resuscitation in out-of-hospital cardiac arrest - current status. Curr Opin Crit Care 2023; 29:633-639. [PMID: 37865873 PMCID: PMC10624408 DOI: 10.1097/mcc.0000000000001102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2023]
Abstract
PURPOSE OF REVIEW Extracorporeal cardiopulmonary resuscitation (ECPR) is an emerging treatment for refractory cardiac arrest. In recent years, several randomized controlled trials have been published that aimed to address the efficacy and effectiveness of ECPR for out-of-hospital cardiac arrest (OHCA). Despite the lack of high-quality evidence concerning clinical effectiveness and cost-effectiveness, ECPR is increasingly implemented throughout the world. In this review, we aim to provide an overview of the current status of ECPR for OHCA. RECENT FINDINGS Randomized controlled trials showed diverging results, largely due to differences in selection criteria and study design. Single-center studies, performed in centers with extraordinary expertise and dedication consistently achieve a low-flow time of around 60 min, but such achievements are rarely reproduced outside these centers. Strict patient selection can improve outcome but simultaneously limits the caseload. Preliminary data suggest that outcome may also be improved by avoiding hyperoxia postresuscitation. SUMMARY The potential of ECPR to increase survival in selected patients in highly dedicated systems seems to be proven, the question remains whether ECPR for OHCA can be widely implemented successfully and can develop into a sustainable, commonplace resource-effective treatment.
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Affiliation(s)
| | - Jos G. Maessen
- Department of Cardiothoracic Surgery, Maastricht University Medical Center Cardiovascular Research Institute Maastricht
| | - Marcel C.G. van de Poll
- Department of Intensive Care, Maastricht University Medical Center, Maastricht, the Netherlands School for Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
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23
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Kalra A, Kang JK, Wilcox C, Brown P, Rycus P, Anders MM, Zaaqoq AM, Brodie D, Whitman GJR, Cho SM. Impact of Pulse Pressure on Acute Brain Injury in Venoarterial ECMO Patients with Cardiogenic Shock During the First 24 Hours of ECMO Cannulation: Analysis of the Extracorporeal Life Support Organization Registry. RESEARCH SQUARE 2023:rs.3.rs-3646443. [PMID: 38045281 PMCID: PMC10690326 DOI: 10.21203/rs.3.rs-3646443/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: 12/05/2023]
Abstract
Background Low pulse pressure (PP) in venoarterial-extracorporeal membrane oxygenation (VA-ECMO) is a marker of cardiac dysfunction and has been associated with acute brain injury (ABI) as continuous-flow centrifugal pump may lead to endothelial dysregulation. Methods We retrospectively analyzed adults (≥18 years) on "peripheral" VA-ECMO support for cardiogenic shock in the Extracorporeal Life Support Organization Registry (1/2018-7/2023). Cubic splines were used to establish a threshold (PP≤10 mmHg at 24 hours of ECMO support) for "early low" PP. ABI included central nervous system (CNS) ischemia, intracranial hemorrhage, brain death, and seizures. Multivariable logistic regressions were performed to examine whether PP≤10 mmHg was associated with ABI. Covariates included age, sex, body mass index, pre-ECMO variables (temporary mechanical support, vasopressors, cardiac arrest), on-ECMO variables (pH, PaO2, PaCO2), and on-ECMO complications (hemolysis, arrhythmia, renal replacement therapy). Results Of 9,807 peripheral VA-ECMO patients (median age=57.4 years, 67% male), 8,294 (85%) had PP>10 mmHg vs. 1,513 (15%) had PP≤10 mmHg. Patients with PP≤10 mmHg experienced ABI more frequently vs. PP>10 mmHg (15% vs. 11%, p<0.001). After adjustment, PP≤10 mmHg was independently associated with ABI (adjusted odds ratio [aOR]=1.25, 95% confidence interval [CI]=1.06-1.48, p=0.01). CNS ischemia and brain death were more common in patients with PP≤10 mmHg vs. PP>10 mmHg (8% vs. 6%, p=0.008; 3% vs. 1%, p<0.001). PP≤10 mmHg was associated with CNS ischemia (aOR=1.26, 95%CI=1.02-1.56, p=0.03) but not intracranial hemorrhage (aOR=1.14, 95%CI=0.85-1.54, p=0.38). Conclusions Early low PP (≤10 mmHg) at 24 hours of ECMO support was associated with ABI, particularly CNS ischemia, in peripheral VA-ECMO patients.
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Hwang J, Kalra A, Shou BL, Whitman G, Wilcox C, Brodie D, Zaaqoq AM, Lorusso R, Uchino K, Cho SM. Epidemiology of ischemic stroke and hemorrhagic stroke in venoarterial extracorporeal membrane oxygenation. Crit Care 2023; 27:433. [PMID: 37946237 PMCID: PMC10633935 DOI: 10.1186/s13054-023-04707-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 10/23/2023] [Indexed: 11/12/2023] Open
Abstract
BACKGROUND While venoarterial extracorporeal membrane oxygenation (V-A ECMO) provides lifesaving support for cardiopulmonary failure, complications may increase mortality, with few studies focusing on ischemic/hemorrhagic stroke. We aimed to determine the trends and associations of stroke incidence and mortality, and their risk factors, including the effects of annual case volumes of ECMO centers. METHODS Retrospective analysis was performed on the Extracorporeal Life Support Organization (ELSO) registry, including adult V-A ECMO patients from 534 international centers between 2012 and 2021, excluding extracorporeal cardiopulmonary resuscitation. Temporal trend analyses were performed for stroke incidence and mortality. Univariate testing, multivariable regression, and survival analysis were used to evaluate the associations of stroke, 90-day mortality, and impact of annual center volume. RESULTS Of 33,041 patients, 20,297 had mortality data, and 12,327 were included in the logistic regression. Between 2012 and 2021, ischemic stroke incidence increased (p < 0.0001), hemorrhagic stroke incidence remained stable, and overall 90-day mortality declined (p < 0.0001). Higher 24-h PaO2 and greater decrease between pre-ECMO PaCO2 and post-cannulation 24-h PaCO2 were associated with greater ischemic stroke incidence, while annual case volume was not. Ischemic/hemorrhagic strokes were associated with increased 90-day mortality (both p < 0.0001), while higher annual case volume was associated with lower 90-day mortality (p = 0.001). Hazard of death was highest in the first several days of V-A ECMO. CONCLUSION In V-A ECMO patients between 2012 and 2021, 90-day mortality decreased, while ischemic stroke incidence increased. ELSO centers with higher annual case volumes had lower mortality, but were not associated with ischemic/hemorrhagic stroke incidence. Both ischemic/hemorrhagic strokes were associated with increased mortality.
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Affiliation(s)
- Jaeho Hwang
- Department of Neurology, The Johns Hopkins Hospital, Baltimore, MD, USA
| | - Andrew Kalra
- Division of Cardiac Surgery, Department of Surgery, The Johns Hopkins Hospital, Baltimore, MD, USA
| | - Benjamin L Shou
- Division of Cardiac Surgery, Department of Surgery, The Johns Hopkins Hospital, Baltimore, MD, USA
| | - Glenn Whitman
- Division of Cardiac Surgery, Department of Surgery, The Johns Hopkins Hospital, Baltimore, MD, USA
| | - Christopher Wilcox
- Division of Critical Care, Department of Medicine, Mercy Hospital of Buffalo, Buffalo, NY, USA
| | - Daniel Brodie
- Department of Medicine, 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, and Cardiovascular Research Institute Maastricht (CARIM), Maastricht, The Netherlands
| | - Ken Uchino
- Cerebrovascular Center, Neurological Institute, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, USA
| | - Sung-Min Cho
- Division of Cardiac Surgery, Department of Surgery, The Johns Hopkins Hospital, Baltimore, MD, USA.
- Division of Neurosciences Critical Care, Departments of Neurology, Neurosurgery, Anesthesiology, Critical Care Medicine, The Johns Hopkins Hospital, Baltimore, MD, USA.
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Jeung KW, Jung YH, Gumucio JA, Salcido DD, Menegazzi JJ. Benefits, key protocol components, and considerations for successful implementation of extracorporeal cardiopulmonary resuscitation: a review of the recent literature. Clin Exp Emerg Med 2023; 10:265-279. [PMID: 37439142 PMCID: PMC10579726 DOI: 10.15441/ceem.23.063] [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: 05/24/2023] [Revised: 06/04/2023] [Accepted: 06/05/2023] [Indexed: 07/14/2023] Open
Abstract
The application of venoarterial extracorporeal membrane oxygenation (ECMO) in patients unresponsive to conventional cardiopulmonary resuscitation (CPR) has significantly increased in recent years. To date, three published randomized trials have investigated the use of extracorporeal CPR (ECPR) in adults with refractory out-of-hospital cardiac arrest. Although these trials reported inconsistent results, they suggest that ECPR may have a significant survival benefit over conventional CPR in selected patients only when performed with strict protocol adherence in experienced emergency medical services-hospital systems. Several studies suggest that identifying suitable ECPR candidates and reducing the time from cardiac arrest to ECMO initiation are key to successful outcomes. Prehospital ECPR or the rendezvous approach may allow more patients to receive ECPR within acceptable timeframes than ECPR initiation on arrival at a capable hospital. ECPR is only one part of the system of care for resuscitation of cardiac arrest victims. Optimizing the chain of survival is critical to improving outcomes of patients receiving ECPR. Further studies are needed to find the optimal strategy for the use of ECPR.
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Affiliation(s)
- Kyung Woon Jeung
- Department of Emergency Medicine, Chonnam National University Hospital, Gwangju, Korea
- Department of Emergency Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Yong Hun Jung
- Department of Emergency Medicine, Chonnam National University Hospital, Gwangju, Korea
- Department of Emergency Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Jorge Antonio Gumucio
- Department of Emergency Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - David D. Salcido
- Department of Emergency Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - James J. Menegazzi
- Department of Emergency Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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Wheeler CR, Bullock KJ. Extracorporeal Membrane Oxygenation. Respir Care 2023; 68:1158-1170. [PMID: 37402582 PMCID: PMC10353178 DOI: 10.4187/respcare.10929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2023]
Abstract
The utilization of extracorporeal membrane oxygenation (ECMO) for cardiopulmonary support continues to increase globally, with > 190,000 ECMO cases reported to the international Extracorporeal Life Support Organization Registry. The present review aims to synthesize important contributions to the literature surrounding the management of mechanical ventilation, prone positioning, anticoagulation, bleeding complications, and neurologic outcomes for infants, children, and adults undergoing ECMO in 2022. Additionally, issues related to cardiac ECMO, Harlequin syndrome, and anticoagulation during ECMO will be discussed.
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Affiliation(s)
- Craig R Wheeler
- Department of Respiratory Care and Department of Extracorporeal Membrane Oxygenation, Boston Children's Hospital, Boston, Massachusetts.
| | - Kevin J Bullock
- Department of Respiratory Care and Department of Extracorporeal Membrane Oxygenation, Boston Children's Hospital, Boston, Massachusetts
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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] [Grants] [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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Gottlieb J. [Oxygen therapy in intensive care]. Dtsch Med Wochenschr 2023; 148:759-766. [PMID: 37257478 DOI: 10.1055/a-1940-0553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
PULSE OXIMETRY AND BLOOD GAS ANALYSES Pulse oximetry has high sensitivity but low specificity for detecting hypoxemia. Arterial blood gas analyses are the gold standard for monitoring O2 therapy. Venous blood gas analyses should not be used in this setting. TARGET VALUES OF O2 THERAPY: The target range of acute O2 therapy for ventilated patients and nonventilated patients not at risk of hypercapnia should be between 92% and 96% for oxygen saturation (SpO2) measured by pulse oximetry. Indications for high-dose O2 therapy without a target range in critical care include carbon monoxide poisoning and patients with severe respiratory distress when SpO2 cannot be derived. Hyperoxemia, i.e., SpO2 values above 96%, has not improved survival in randomized trials of predominantly ventilated ICU patients. Under hyperoxemia in nonventilated patients at risk of hypercapnia (e.g., patients with chronic obstructive pulmonary disease), one in three patients is at risk of increasing carbon dioxide. Therefore, a target SpO2 of 88-92% should be aimed for in these patients. O2 TARGET RANGES ON EXTRACORPOREAL PROCEDURES: There are no randomized studies recommending other SpO2 target ranges for patients on extracorporeal procedures. These patients should always be monitored with arterial blood gases-in the case of peripheral VA-ECMO on the right arm and downstream of the oxygenator. HIGH-FLOW OXYGEN THERAPY FOR ACUTE HYPERCAPNIC RESPIRATORY FAILURE: High-flow oxygen therapy (HFNC) was not associated with reduced in-hospital mortality compared with conventional O2 in a meta-analysis of predominantly patients with acute hypoxemia (type I respiratory failure), although intubation rates were reduced. Also, in acute hypercapnic respiratory failure (type II), HFNC with high flow rates is not inferior to noninvasive ventilation (NIV).
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Affiliation(s)
- Jens Gottlieb
- Klinik für Pneumologie, Medizinische Hochschule Hannover; Deutsches Zentrum für Lungenforschung (DZL), Biomedical Research in End-Stage and Obstructive Lung Disease (BREATH), Hannover
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