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Lv W, Wang Y, Fu H, Liang Z, Huang B, Jiang R, Wu J, Zhao Y. Recent advances of multifunctional zwitterionic polymers for biomedical application. Acta Biomater 2024; 181:19-45. [PMID: 38729548 DOI: 10.1016/j.actbio.2024.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 04/27/2024] [Accepted: 05/03/2024] [Indexed: 05/12/2024]
Abstract
Zwitterionic polymers possess equal total positive and negative charges in the repeating units, making them electrically neutral overall. This unique property results in superhydrophilicity, which makes the zwitterionic polymers highly effective in resisting protein adsorption, thus endowing the drug carriers with long blood circulation time, inhibiting thrombus formation on biomedical devices in contact with blood, and ensuring the good sensitivity of sensors in biomedical application. Moreover, zwitterionic polymers have tumor-targeting ability and pH-responsiveness, rendering them ideal candidates for antitumor drug delivery. Additionally, the high ionic conductivity of zwitterionic polymers makes them an important raw material for ionic skin. Zwitterionic polymers exhibit remarkable resistance to bacterial adsorption and growth, proving their suitability in a wide range of biomedical applications such as ophthalmic applications, and wound dressings. In this paper, we provide an in-depth analysis of the different structures and characteristics of zwitterionic polymers and highlight their unique qualities and suitability for biomedical applications. Furthermore, we discuss the limitations and challenges that must be overcome to realize the full potential of zwitterionic polymers and present an optimistic perspective for zwitterionic polymers in the biomedical fields. STATEMENT OF SIGNIFICANCE: Zwitterionic polymers have a series of excellent properties such as super hydrophilicity, anti-protein adsorption, antibacterial ability and good ionic conductivity. However, biomedical applications of multifunctional zwitterionic polymers are still a major field to be explored. This review focuses on the design and application of zwitterionic polymers-based nanosystems for targeted and responsive delivery of antitumor drugs and cancer diagnostic agents. Moreover, the use of zwitterionic polymers in various biomedical applications such as biomedical devices in contact with blood, biosensors, ionic skin, ophthalmic applications and wound dressings is comprehensively described. We discuss current results and future challenges for a better understanding of multifunctional zwitterionic polymers for biomedical applications.
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Affiliation(s)
- Wenfeng Lv
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China
| | - Yanhui Wang
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China
| | - Huayu Fu
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China
| | - Ziyang Liang
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China
| | - Bangqi Huang
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China
| | - Ruiqin Jiang
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China
| | - Jun Wu
- Bioscience and Biomedical Engineering Thrust, The Hong Kong University of Science and Technology (Guangzhou), Nansha, Guangzhou, 511400, Guangdong, China; Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong SAR, China.
| | - Yi Zhao
- School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China.
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Becker T, Struble RD, Rappaport C. Veno-venous extracorporeal membrane oxygenation (VV ECMO) cannula malposition identified with point-of-care ultrasound. Ultrasound J 2024; 16:27. [PMID: 38717534 PMCID: PMC11078911 DOI: 10.1186/s13089-024-00357-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 01/24/2024] [Indexed: 05/12/2024] Open
Abstract
BACKGROUND Point-of-care ultrasound (POCUS) has become a mainstay in the evaluation of critically ill patients in the intensive care unit (ICU). ECMO patients are susceptible to complications during prolonged ICU stay, including cannula malposition, which has deleterious consequences. Although the literature surrounding utility of ultrasound on ECMO patients is expansive, direct comparison between radiographic imaging versus ultrasound for identification of cannula malposition is lacking. CASE PRESENTATION The authors identified four patients with cannula malposition discovered through POCUS that was missed on routine radiographic imaging. Identification and correction of malposition changed their ECMO course. CONCLUSION This case series is the first in literature demonstrating that ultrasound may be superior to radiographic images for ECMO cannula malposition. Further investigation into this subject is warranted.
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Affiliation(s)
- Taylor Becker
- Department of Internal Medicine, University of Iowa, C123 GH, 200 Hawkins Dr., Iowa City, IA, 52242, USA.
| | - Roger D Struble
- Department of Internal Medicine, Division of Pulmonary, Critical Care, and Occupational Medicine, University of Iowa, Iowa City, USA
| | - Charles Rappaport
- Department of Internal Medicine, Division of Pulmonary, Critical Care, and Occupational Medicine, University of Iowa, Iowa City, USA
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Shu HT, Covarrubias O, Shah MM, Muquit ST, Yang VB, Zhao X, Kagabo W, Shou BL, Kalra A, Whitman G, Kim BS, Cho SM, LaPorte DM, Shafiq B. What Factors Are Associated With Arterial Line-Related Limb Ischemia in Patients on Extracorporeal Membrane Oxygenation? A Single-Center Retrospective Cohort Study. J Cardiothorac Vasc Anesth 2023; 37:2489-2498. [PMID: 37735020 DOI: 10.1053/j.jvca.2023.08.131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 06/27/2023] [Accepted: 08/14/2023] [Indexed: 09/23/2023]
Abstract
OBJECTIVES The primary purpose of this study was to identify factors associated with the development of arterial line-related limb ischemia in patients on extracorporeal membrane oxygenation (ECMO). The authors also sought to characterize and report the outcomes of patients who developed arterial line-related limb ischemia. DESIGN Retrospective cohort study. SETTING A single academic tertiary referral ECMO center. PARTICIPANTS Consecutive patients who were treated with ECMO over 6 years. INTERVENTIONS Use of arterial line. MEASUREMENTS AND MAIN RESULTS A total of 278 consecutive ECMO patients were included, with 19 (7%) patients developing arterial line-related limb ischemia during the ECMO run. Postcannulation Sequential Organ Failure Assessment (SOFA) (adjusted odds ratio [aOR] 1.20, 95% CI 1.08-1.32), Acute Physiology and Chronic Health Evaluation-II (aOR 0.84, 95% CI 0.74-0.95), and adjusted Vasopressor Dose Equivalence (aOR 1.03, 95% CI 1.01-1.05) scores were independently associated with the development of arterial line-associated limb ischemia. A SOFA score of ≥17 at the time of ECMO cannulation had an 80% sensitivity and 87% specificity for predicting arterial line-related limb ischemia. CONCLUSIONS Arterial line-related limb ischemia is much more common in ECMO patients than in the typical intensive care unit setting. The SOFA score may be useful in identifying which patients may be at risk for arterial line-related limb ischemia. As this was a single-center retrospective study, these results are inherently exploratory, and prospective multicenter studies are necessary to validate these results.
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Affiliation(s)
- Henry T Shu
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD.
| | - Oscar Covarrubias
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Manuj M Shah
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Siam T Muquit
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Victor B Yang
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Xiyu Zhao
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Whitney Kagabo
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Benjamin L Shou
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Andrew Kalra
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Glenn Whitman
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Bo Soo Kim
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Sung-Min Cho
- Division of Neuroscience Critical Care, Departments of Neurology and Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Dawn M LaPorte
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Babar Shafiq
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
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Martins Lima P, Pinto SG, Dias J. The Challenges of Spinal Surgery Requiring Ventral Decubitus in the Critical Trauma Patient on Extracorporeal Membrane Oxygenation: A Case Report. Cureus 2023; 15:e45904. [PMID: 37885529 PMCID: PMC10599098 DOI: 10.7759/cureus.45904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/25/2023] [Indexed: 10/28/2023] Open
Abstract
Extracorporeal membrane oxygenation (ECMO) provides a bypass of the lungs, ensuring blood oxygenation and carbon dioxide removal in cases of respiratory failure. The nature of the device itself creates many perioperative challenges, including fluid management and the management of anticoagulation. Surgery via the posterior approach for an unstable spinal fracture requiring the ventral decubitus position comes with its own set of difficulties, among which are the need for stability and craniocaudal alignment when rotating the patient, the risk of increased abdominal pressure, and the damage to vulnerable soft tissues like the eyes, nose, and others. The combination of these two situations creates a synergistic effect, which adds to the difficulty of the management of the situation and requires a personalized, multidisciplinary approach. We present a case of a critical trauma patient who was on venovenous ECMO as a consequence of refractory respiratory hypoxemia with an unstable mid-thoracic spinal fracture requiring surgical intervention via the posterior approach (demanding intra-operative ventral decubitus).
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Affiliation(s)
| | - Sérgio G Pinto
- Anesthesiology, Centro Hospitalar Universitário São João, Porto, PRT
| | - José Dias
- Anesthesiology, Centro Hospitalar Universitário São João, Porto, PRT
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Webb L, Burton L, Manchikalapati A, Prabhakaran P, Loberger JM, Richter RP. Cardiac dysfunction in severe pediatric acute respiratory distress syndrome: the right ventricle in search of the right therapy. Front Med (Lausanne) 2023; 10:1216538. [PMID: 37654664 PMCID: PMC10466806 DOI: 10.3389/fmed.2023.1216538] [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: 05/04/2023] [Accepted: 07/21/2023] [Indexed: 09/02/2023] Open
Abstract
Severe acute respiratory distress syndrome in children, or PARDS, carries a high risk of morbidity and mortality that is not fully explained by PARDS severity alone. Right ventricular (RV) dysfunction can be an insidious and often under-recognized complication of severe PARDS that may contribute to its untoward outcomes. Indeed, recent evidence suggest significantly worse outcomes in children who develop RV failure in their course of PARDS. However, in this narrative review, we highlight the dearth of evidence regarding the incidence of and risk factors for PARDS-associated RV dysfunction. While we wish to draw attention to the absence of available evidence that would inform recommendations around surveillance and treatment of RV dysfunction during severe PARDS, we leverage available evidence to glean insights into potentially helpful surveillance strategies and therapeutic approaches.
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Affiliation(s)
- Lece Webb
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Luke Burton
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Ananya Manchikalapati
- Division of Pediatric Critical Care, Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Priya Prabhakaran
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Jeremy M. Loberger
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Robert P. Richter
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, United States
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Cui W, Wang T, Xu Z, Liu J, Simakov S, Liang F. A numerical study of the hemodynamic behavior and gas transport in cardiovascular systems with severe cardiac or cardiopulmonary failure supported by venoarterial extracorporeal membrane oxygenation. Front Bioeng Biotechnol 2023; 11:1177325. [PMID: 37229493 PMCID: PMC10203410 DOI: 10.3389/fbioe.2023.1177325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 04/27/2023] [Indexed: 05/27/2023] Open
Abstract
Venoarterial extracorporeal membrane oxygenation (VA-ECMO) has been extensively demonstrated as an effective means of bridge-to-destination in the treatment of patients with severe ventricular failure or cardiopulmonary failure. However, appropriate selection of candidates and management of patients during Extracorporeal membrane oxygenation (ECMO) support remain challenging in clinical practice, due partly to insufficient understanding of the complex influences of extracorporeal membrane oxygenation support on the native cardiovascular system. In addition, questions remain as to how central and peripheral venoarterial extracorporeal membrane oxygenation modalities differ with respect to their hemodynamic impact and effectiveness of compensatory oxygen supply to end-organs. In this work, we developed a computational model to quantitatively address the hemodynamic interaction between the extracorporeal membrane oxygenation and cardiovascular systems and associated gas transport. Model-based numerical simulations were performed for cardiovascular systems with severe cardiac or cardiopulmonary failure and supported by central or peripheral venoarterial extracorporeal membrane oxygenation. Obtained results revealed that: 1) central and peripheral venoarterial extracorporeal membrane oxygenation modalities had a comparable capacity for elevating arterial blood pressure and delivering oxygenated blood to important organs/tissues, but induced differential changes of blood flow waveforms in some arteries; 2) increasing the rotation speed of extracorporeal membrane oxygenation pump (ω) could effectively improve arterial blood oxygenation, with the efficiency being especially high when ω was low and cardiopulmonary failure was severe; 3) blood oxygen indices (i.e., oxygen saturation and partial pressure) monitored at the right radial artery could be taken as surrogates for diagnosing potential hypoxemia in other arteries irrespective of the modality of extracorporeal membrane oxygenation; and 4) Left ventricular (LV) overloading could occur when ω was high, but the threshold of ω for inducing clinically significant left ventricular overloading depended strongly on the residual cardiac function. In summary, the study demonstrated the differential hemodynamic influences while comparable oxygen delivery performance of the central and peripheral venoarterial extracorporeal membrane oxygenation modalities in the management of patients with severe cardiac or cardiopulmonary failure and elucidated how the status of arterial blood oxygenation and severity of left ventricular overloading change in response to variations in ω. These model-based findings may serve as theoretical references for guiding the application of venoarterial extracorporeal membrane oxygenation or interpreting in vivo measurements in clinical practice.
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Affiliation(s)
- Wenhao Cui
- Department of Engineering Mechanics, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Tianqi Wang
- School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Zhuoming Xu
- Cardiac Intensive Care Unit, Department of Thoracic and Cardiovascular Surgery, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jinlong Liu
- Institute of Pediatric Translational Medicine, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Sergey Simakov
- Department of Computational Physics, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
- Marchuk Institute of Numerical Mathematics of the Russian Academy of Sciences, Moscow, Russia
| | - Fuyou Liang
- Department of Engineering Mechanics, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai, China
- State Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai, China
- World-Class Research Center “Digital Biodesign and Personalized Healthcare”, Sechenov First Moscow State Medical University, Moscow, Russia
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Ajouri J, Lepper PM, Spangenberg T, Schneider NRE, Muellenbach RM. [Extracorporeal Life Support in Critical Care Medicine]. Anasthesiol Intensivmed Notfallmed Schmerzther 2023; 58:292-303. [PMID: 37192638 DOI: 10.1055/a-1859-0131] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Veno-arterial extracorporeal life support (ECLS) may be indicated in patients with refractory heart failure. The list of conditions in which ECLS is successfully used is growing and includes cardiogenic shock following myocardial infarction, refractory cardiac arrest, septic shock with low cardiac output and severe intoxication. Femoral ECLS is the most common and often preferred ECLS-configuration in the emergency setting. Although femoral access is usually quick and easy to establish, it is also associated with specific adverse haemodynamic effects due to the direction of blood flow and access-site complications are inherent. Femoral ECLS provides adequate oxygen delivery and compensates for impaired cardiac output. However, retrograde blood flow into the aorta increases left ventricular afterload and may worsen left ventricular stroke work. Therefore, femoral ECLS is not equivalent to left ventricular unloading. Daily haemodynamic assessments are crucial and should include echocardiography and laboratory tests determining tissue oxygenation. Common complications include the harlequin-phenomenon, lower limb ischaemia or cerebral events and cannula site or intracranial bleeding. Despite a high incidence of complications and high mortality, ECLS is associated with survival benefits and better neurological outcomes in selected patient groups.
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Duan Q, Zhang Y, Yang D. Perioperative fluid management for lung transplantation is challenging. Heliyon 2023; 9:e14704. [PMID: 37035359 PMCID: PMC10073756 DOI: 10.1016/j.heliyon.2023.e14704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 02/24/2023] [Accepted: 03/15/2023] [Indexed: 03/29/2023] Open
Abstract
Lung transplantation is the definitive end-stage treatment for many lung diseases, and postoperative pulmonary oedema severely affects survival after lung transplantation. Optimizing perioperative fluid management can reduce the incidence of postoperative pulmonary oedema and improve the prognosis of lung transplant patients by removing the influence of patient, donor's lung and ECMO factors. Therefore, this article reviews seven aspects of lung transplant patients' pathophysiological characteristics, physiological characteristics of fluids, the influence of the donor lung on pulmonary oedema as well as current fluid rehydration concepts, advantages or disadvantages of intraoperative monitoring tools or types of fluids on postoperative pulmonary oedema, while showing the existing challenges in section 7. The aim is to show the specificity of perioperative fluid management in lung transplant patients and to provide new ideas for individualised fluid management in lung transplantation.
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Affiliation(s)
- Qirui Duan
- Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100144, China
| | - Yajun Zhang
- China-Japan Friendship Hospital, Beijing, 100020, China
- Corresponding author.
| | - Dong Yang
- Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100144, China
- Corresponding author.,
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Conrad AM, Loosen G, Boesing C, Thiel M, Luecke T, Rocco PRM, Pelosi P, Krebs J. Effects of changes in veno-venous extracorporeal membrane oxygenation blood flow on the measurement of intrathoracic blood volume and extravascular lung water index: a prospective interventional study. J Clin Monit Comput 2023; 37:599-607. [PMID: 36284041 PMCID: PMC9595580 DOI: 10.1007/s10877-022-00931-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 10/10/2022] [Indexed: 11/17/2022]
Abstract
In severe acute respiratory distress syndrome (ARDS), veno-venous extracorporeal membrane oxygenation (V-V ECMO) has been proposed as a therapeutic strategy to possibly reduce mortality. Transpulmonary thermodilution (TPTD) enables monitoring of the extravascular lung water index (EVLWI) and cardiac preload parameters such as intrathoracic blood volume index (ITBVI) in patients with ARDS, but it is not generally recommended during V-V ECMO. We hypothesized that the amount of extracorporeal blood flow (ECBF) influences the calculation of EVLWI and ITBVI due to recirculation of indicator, which affects the measurement of the mean transit time (MTt), the time between injection and passing of half the indicator, as well as downslope time (DSt), the exponential washout of the indicator. EVLWI and ITBVI were measured in 20 patients with severe ARDS managed with V-V ECMO at ECBF rates from 6 to 4 and 2 l/min with TPTD. MTt and DSt significantly decreased when ECBF was reduced, resulting in a decreased EVLWI (26.1 [22.8-33.8] ml/kg at 6 l/min ECBF vs 22.4 [15.3-31.6] ml/kg at 4 l/min ECBF, p < 0.001; and 13.2 [11.8-18.8] ml/kg at 2 l/min ECBF, p < 0.001) and increased ITBVI (840 [753-1062] ml/m2 at 6 l/min ECBF vs 886 [658-979] ml/m2 at 4 l/min ECBF, p < 0.001; and 955 [817-1140] ml/m2 at 2 l/min ECBF, p < 0.001). In patients with severe ARDS managed with V-V ECMO, increasing ECBF alters the thermodilution curve, resulting in unreliable measurements of EVLWI and ITBVI. German Clinical Trials Register (DRKS00021050). Registered 14/08/2018. https://www.drks.de/drks_web/navigate.do?navigationId=trial.HTML&TRIAL_ID=DRKS00021050.
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Affiliation(s)
- Alice Marguerite Conrad
- Department of Anaesthesiology and Critical Care Medicine, University Medical Centre Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Theodor-Kutzer Ufer 1-3, 68165 Mannheim, Germany
| | - Gregor Loosen
- Department of Cardiothoracic Anaesthesia and Intensive Care, Royal Papworth Hospital NHS Foundation Trust, Papworth Road, Cambridge Biomedical Campus, Cambridge, CB2 0AY UK
| | - Christoph Boesing
- Department of Anaesthesiology and Critical Care Medicine, University Medical Centre Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Theodor-Kutzer Ufer 1-3, 68165 Mannheim, Germany
| | - Manfred Thiel
- Department of Anaesthesiology and Critical Care Medicine, University Medical Centre Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Theodor-Kutzer Ufer 1-3, 68165 Mannheim, Germany
| | - Thomas Luecke
- Department of Anaesthesiology and Critical Care Medicine, University Medical Centre Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Theodor-Kutzer Ufer 1-3, 68165 Mannheim, Germany
| | - Patricia R. M. Rocco
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Centro de Ciências da Saúde, Avenida Carlos Chagas Filho, 373, Bloco G-014, Ilha Do Fundão, Rio de Janeiro, Brazil
| | - Paolo Pelosi
- Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Genoa, Italy
- Anesthesia and Intensive Care, San Martino Policlinico Hospital, IRCCS for Oncology and Neurosciences, Genoa, Italy
| | - Joerg Krebs
- Department of Anaesthesiology and Critical Care Medicine, University Medical Centre Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Theodor-Kutzer Ufer 1-3, 68165 Mannheim, Germany
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Linganna RE, Ibekwe SO, Faloye AO. Mechanical assist devices: A primer for the general anesthesiologist I: Extracorporeal membrane oxygenation. J Clin Anesth 2023; 84:110998. [PMID: 36371944 DOI: 10.1016/j.jclinane.2022.110998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/30/2022] [Accepted: 11/02/2022] [Indexed: 11/12/2022]
Affiliation(s)
- Regina E Linganna
- Division of Cardiothoracic Anesthesiology, Department of Anesthesiology and Critical Care, Hospital of the University of Pennsylvania, 3400 Spruce Street, Dulles 680, Philadelphia, PA 19104, USA.
| | - Stephanie O Ibekwe
- Division of Cardiothoracic Anesthesiology, Department of Anesthesiology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77070, Houston, TX, USA, 77030.
| | - Abimbola O Faloye
- Division of Cardiothoracic Anesthesiology, Department of Anesthesiology, Emory University, 1364 Clifton Rd. Suite C220, Atlanta, GA 30322, USA.
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Kohne JG, MacLaren G, Shellhaas RA, Benedetti G, Barbaro RP. Variation in electroencephalography and neuroimaging for children receiving extracorporeal membrane oxygenation. Crit Care 2023; 27:23. [PMID: 36650540 PMCID: PMC9847194 DOI: 10.1186/s13054-022-04293-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 12/24/2022] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Seizures, strokes, and intracranial hemorrhage are common and feared complications in children receiving extracorporeal membrane oxygenation (ECMO) support. Researchers and clinicians have proposed and deployed methods for monitoring and detecting neurologic injury, but best practices are unknown. We sought to characterize clinicians' approach to electroencephalography (EEG) and brain imaging modalities in children supported by ECMO. METHODS We performed a retrospective observational cohort study among US Children's Hospitals participating in the Pediatric Health Information System (PHIS) from 2016 to 2021. We identified hospitalizations containing ECMO support. We stratified these admissions by pediatric, neonatal, cardiac surgery, and non-cardiac surgery. We characterized the frequency of EEG, cranial ultrasound, brain computed tomography (CT), magnetic resonance imaging (MRI), and transcranial Doppler during ECMO hospitalizations. We reported key diagnoses (stroke and seizures) and the prescription of antiseizure medication. To assess hospital variation, we created multilevel logistic regression models. RESULTS We identified 8746 ECMO hospitalizations. Nearly all children under 1 year of age (5389/5582) received a cranial ultrasound. Sixty-two percent of the cohort received an EEG, and use increased from 2016 to 2021 (52-72% of hospitalizations). There was marked variation between hospitals in rates of EEG use. Rates of antiseizure medication use (37% of hospitalizations) and seizure diagnoses (20% of hospitalizations) were similar across hospitals, including high and low EEG utilization hospitals. Overall, 37% of the cohort received a CT and 36% received an MRI (46% of neonatal patients). Stroke diagnoses (16% of hospitalizations) were similar between high- and low-MRI utilization hospitals (15% vs 17%, respectively). Transcranial Doppler (TCD) was performed in just 8% of hospitalizations, and 77% of the patients who received a TCD were cared for at one of five centers. CONCLUSIONS In this cohort of children at high risk of neurologic injury, there was significant variation in the approach to EEG and neuroimaging in children on ECMO. Despite the variation in monitoring and imaging, diagnoses of seizures and strokes were similar across hospitals. Future work needs to identify a management strategy that appropriately screens and monitors this high-risk population without overuse of resource-intensive modalities.
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Affiliation(s)
- Joseph G. Kohne
- grid.214458.e0000000086837370Division of Pediatric Critical Care Medicine, Department of Pediatrics, University of Michigan, Ann Arbor, USA ,grid.214458.e0000000086837370Susan B. Meister Child Health Evaluation and Research Center, University of Michigan School of Medicine, Ann Arbor, USA
| | - Graeme MacLaren
- grid.410759.e0000 0004 0451 6143Cardiothoracic Intensive Care Unit, National University Health System, Singapore, Singapore
| | - Renée A. Shellhaas
- grid.214458.e0000000086837370Division of Pediatric Neurology, Department of Pediatrics, University of Michigan, Ann Arbor, USA
| | - Giulia Benedetti
- grid.240741.40000 0000 9026 4165Department of Neurology, Seattle Children’s Hospital and University of Washington, Seattle, USA
| | - Ryan P. Barbaro
- grid.214458.e0000000086837370Division of Pediatric Critical Care Medicine, Department of Pediatrics, University of Michigan, Ann Arbor, USA ,grid.214458.e0000000086837370Susan B. Meister Child Health Evaluation and Research Center, University of Michigan School of Medicine, Ann Arbor, USA
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Perioperative extracorporeal membrane oxygenation in pediatric congenital heart disease: Chinese expert consensus. World J Pediatr 2023; 19:7-19. [PMID: 36417081 PMCID: PMC9832091 DOI: 10.1007/s12519-022-00636-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 10/10/2022] [Indexed: 11/24/2022]
Abstract
BACKGROUND Congenital heart disease (CHD) is one of the main supportive diseases of extracorporeal membrane oxygenation in children. The management of extracorporeal membrane oxygenation (ECMO) for pediatric CHD faces more severe challenges due to the complex anatomical structure of the heart, special pathophysiology, perioperative complications and various concomitant malformations. The survival rate of ECMO for CHD was significantly lower than other classifications of diseases according to the Extracorporeal Life Support Organization database. This expert consensus aims to improve the survival rate and reduce the morbidity of this patient population by standardizing the clinical strategy. METHODS The editing group of this consensus gathered 11 well-known experts in pediatric cardiac surgery and ECMO field in China to develop clinical recommendations formulated on the basis of existing evidences and expert opinions. RESULTS The primary concern of ECMO management in the perioperative period of CHD are patient selection, cannulation strategy, pump flow/ventilator parameters/vasoactive drug dosage setting, anticoagulation management, residual lesion screening, fluid and wound management and weaning or transition strategy. Prevention and treatment of complications of bleeding, thromboembolism and brain injury are emphatically discussed here. Special conditions of ECMO management related to the cardiovascular anatomy, haemodynamics and the surgical procedures of common complex CHD should be considered. CONCLUSIONS The consensus could provide a reference for patient selection, management and risk identification of perioperative ECMO in children with CHD. Video abstract (MP4 104726 kb).
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Jing Y, Yuan Z, Zhou W, Han X, Qi Q, Song K, Xing J. A phased intervention bundle to decrease the mortality of patients with extracorporeal membrane oxygenation in intensive care unit. Front Med (Lausanne) 2022; 9:1005162. [PMID: 36325385 PMCID: PMC9618597 DOI: 10.3389/fmed.2022.1005162] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 09/26/2022] [Indexed: 11/30/2022] Open
Abstract
Aim To evaluate whether a phased multidimensional intervention bundle would decrease the mortality of patients with extracorporeal membrane oxygenation (ECMO) and the complication incidence. Materials and methods We conducted a prospective observational study in comparison with a retrospective control group in six intensive care units (ICUs) in China. Patients older than 18 years supported with ECMO between March 2018 to March 2022 were included in the study. A phased intervention bundle to improve the outcome of patients with ECMO was developed and implemented. Multivariable logistic regression modeling was used to compare the mortality of patients with ECMO and the complication incidence before, during, and up to 18 months after implementation of the intervention bundle. Results The cohort included 297 patients in 6 ICUs, mostly VA ECMO (68.7%) with a median (25th–75th percentile) duration in ECMO of 9.0 (4.0–15.0) days. The mean (SD) APECHII score was 24.1 (7.5). Overall, the mortality of ECMO decreased from 57.1% at baseline to 21.8% at 13–18 months after implementation of the study intervention (P < 0.001). In multivariable analysis, even after excluding the confounding factors, such as age, APECHII score, pre-ECMO lactate, and incidence of CRRT during ECMO, the intervention bundle still can decrease the mortality independently, which also remained true in the statistical analysis of V-V and V-A ECMO separately. Among all the ECMO-related complications, the incidence of bloodstream infection and bleeding decreased significantly at 13–18 months after implementation compared with the baseline. The CUSUM analysis revealed a typical learning curve with a point of inflection during the implementation of the bundle. Conclusion A phased multidimensional intervention bundle resulted in a large and sustained reduction in the mortality of ECMO that was maintained throughout the 18-month study period. Clinical trial registration [ClinicalTrials.gov], identifier [NCT05024786].
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Affiliation(s)
- Yajun Jing
- Department of Critical Care Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Zhiyong Yuan
- Department of Critical Care Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Weigui Zhou
- Department of Critical Care Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Xiaoning Han
- Department of Critical Care Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Qi Qi
- Department of Critical Care Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Kai Song
- School of Mathematics and Statistics, Qingdao University, Qingdao, China
| | - Jinyan Xing
- Department of Critical Care Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
- *Correspondence: Jinyan Xing,
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14
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Zhang H, Liu Z, Shu H, Yu Y, Yang X, Li R, Xu J, Zou X, Shang Y. Prone positioning in ARDS patients supported with VV ECMO, what we should explore? J Intensive Care 2022; 10:46. [PMID: 36195935 PMCID: PMC9531855 DOI: 10.1186/s40560-022-00640-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 09/28/2022] [Indexed: 11/16/2022] Open
Abstract
Background Acute respiratory distress syndrome (ARDS), a prevalent cause of admittance to intensive care units, is associated with high mortality. Prone positioning has been proven to improve the outcomes of moderate to severe ARDS patients owing to its physiological effects. Venovenous extracorporeal membrane oxygenation (VV ECMO) will be considered in patients with severe hypoxemia. However, for patients with severe hypoxemia supported with VV ECMO, the potential effects and optimal strategies of prone positioning remain unclear. This review aimed to present these controversial questions and highlight directions for future research. Main body The clinically significant benefit of prone positioning and early VV ECMO alone was confirmed in patients with severe ARDS. However, a number of questions regarding the combination of VV ECMO and prone positioning remain unanswered. We discussed the potential effects of prone positioning on gas exchange, respiratory mechanics, hemodynamics, and outcomes. Strategies to achieve optimal outcomes, including indications, timing, duration, and frequency of prone positioning, as well as the management of respiratory drive during prone positioning sessions in ARDS patients receiving VV ECMO, are challenging and controversial. Additionally, whether and how to implement prone positioning according to ARDS phenotypes should be evaluated. Lung morphology monitored by computed tomography, lung ultrasound, or electrical impedance tomography might be a potential indication to make an individualized plan for prone positioning therapy in patients supported with VV ECMO. Conclusion For patients with ARDS supported with VV ECMO, the potential effects of prone positioning have yet to be clarified. Ensuring an optimal strategy, especially an individualized plan for prone positioning therapy during VV ECMO, is particularly challenging and requires further research.
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Affiliation(s)
- Hongling Zhang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.,Department of Intensive Care Unit, Affiliated Lu'an Hospital, Anhui Medical University, Lu'an, 237000, China
| | - Zhengdong Liu
- Department of Intensive Care Unit, Affiliated Lu'an Hospital, Anhui Medical University, Lu'an, 237000, China
| | - Huaqing Shu
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yuan Yu
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xiaobo Yang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Ruiting Li
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jiqian Xu
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xiaojing Zou
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - You Shang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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15
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Bernhardt AM, Schrage B, Schroeder I, Trummer G, Westermann D, Reichenspurner H. Extracorporeal membrane oxygenation. DEUTSCHES ÄRZTEBLATT INTERNATIONAL 2022; 119:235-244. [PMID: 35037618 PMCID: PMC9342119 DOI: 10.3238/arztebl.m2022.0068] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 04/08/2021] [Accepted: 11/25/2021] [Indexed: 01/19/2023]
Abstract
BACKGROUND Veno-venous extracorporeal membrane oxygenation (VV-ECMO) and veno-arterial extracorporeal membrane oxygenation (VA-ECMO), also known as extracorporeal life support (ECLS), can both be used to treat patients with acute pulmonary or cardiovascular failure. METHODS This review is based on publications retrieved by a selective search in PubMed on the topics of cardiogenic shock and acute pulmonary failure, also known as the acute respiratory distress syndrome (ARDS), as well as on ECMO. Attention was given chiefly to randomized, controlled trials and guidelines. RESULTS Initial findings from prospective, randomized trials of VV-ECMO are now available. Trials of ECLS therapy are now in progress or planned. A meta-analysis of two randomized, controlled trials of VV-ECMO for ARDS revealed more frequent survival 90 days after randomization among patients treated with VV-ECMO, compared to the control groups (36% vs. 48%; RR = 0.75 [95% confidence interval 0.6; 0.94]). For selected patients, after evaluation of the benefit-risk profile, VV-ECMO is a good treatment method for severe pulmonary failure, and ECLS for cardiogenic shock and resuscitation. The goal is to secure the circulation so that native heart function can be stabilized in the patient's further course or a permanent left-heart support system can be implanted, or else to support lung function until recovery. CONCLUSION ECMO is a valid option in selected patients when conservative treatment has failed.
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16
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Hernandez-Montfort J, Miranda D, Randhawa VK, Sleiman J, de Armas YS, Lewis A, Taimeh Z, Alvarez P, Cremer P, Perez-Villa B, Navas V, Hakemi E, Velez M, Hernandez-Mejia L, Sheffield C, Brozzi N, Cubeddu R, Navia J, Estep JD. Hemodynamic-based Assessment and Management of Cardiogenic Shock. US CARDIOLOGY REVIEW 2022. [DOI: 10.15420/usc.2021.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Cardiogenic shock (CS) remains a deadly disease entity challenging patients, caregivers, and communities across the globe. CS can rapidly lead to the development of hypoperfusion and end-organ dysfunction, transforming a predictable hemodynamic event into a potential high-resource, intense, hemometabolic clinical catastrophe. Based on the scalable heterogeneity from a cellular level to healthcare systems in the hemodynamic-based management of patients experiencing CS, we present considerations towards systematic hemodynamic-based transitions in which distinct clinical entities share the common path of early identification and rapid transitions through an adaptive longitudinal situational awareness model of care that influences specific management considerations. Future studies are needed to best understand optimal management of drugs and devices along with engagement of health systems of care for patients with CS.
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Affiliation(s)
| | - Diana Miranda
- Department of Cardiovascular Medicine, Cleveland Clinic Florida, Weston Hospital, Weston, FL
| | - Varinder Kaur Randhawa
- Department of Cardiovascular Medicine, Kaufman Center for Heart Failure and Recovery, Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, OH
| | - Jose Sleiman
- Department of Cardiovascular Medicine, Cleveland Clinic Florida, Weston Hospital, Weston, FL
| | - Yelenis Seijo de Armas
- Department of Cardiovascular Medicine, Cleveland Clinic Florida, Weston Hospital, Weston, FL
| | - Antonio Lewis
- Department of Cardiovascular Medicine, Cleveland Clinic Florida, Weston Hospital, Weston, FL
| | - Ziad Taimeh
- Department of Cardiovascular Medicine, Kaufman Center for Heart Failure and Recovery, Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, OH
| | - Paulino Alvarez
- Department of Cardiovascular Medicine, Kaufman Center for Heart Failure and Recovery, Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, OH
| | - Paul Cremer
- Department of Cardiovascular Medicine, Kaufman Center for Heart Failure and Recovery, Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, OH
| | - Bernardo Perez-Villa
- Department of Cardiovascular Medicine, Cleveland Clinic Florida, Weston Hospital, Weston, FL
| | - Viviana Navas
- Department of Cardiovascular Medicine, Cleveland Clinic Florida, Weston Hospital, Weston, FL
| | - Emad Hakemi
- Department of Cardiovascular Medicine, Cleveland Clinic Florida, Weston Hospital, Weston, FL
| | - Mauricio Velez
- Department of Cardiovascular Medicine, Cleveland Clinic Florida, Weston Hospital, Weston, FL
| | - Luis Hernandez-Mejia
- Department of Cardiovascular Medicine, Cleveland Clinic Florida, Weston Hospital, Weston, FL
| | - Cedric Sheffield
- Department of Cardiovascular Medicine, Cleveland Clinic Florida, Weston Hospital, Weston, FL
| | - Nicolas Brozzi
- Department of Cardiovascular Medicine, Cleveland Clinic Florida, Weston Hospital, Weston, FL
| | - Robert Cubeddu
- Department of Cardiovascular Medicine, Cleveland Clinic Florida, Weston Hospital, Weston, FL
| | - Jose Navia
- Department of Cardiovascular Medicine, Cleveland Clinic Florida, Weston Hospital, Weston, FL
| | - Jerry D Estep
- Department of Cardiovascular Medicine, Kaufman Center for Heart Failure and Recovery, Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, OH
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Lioufas PA, Kelly DN, Brooks KS, Marasco SF. Unexpected suicide left ventricle post-surgical aortic valve replacement requiring veno-arterial extracorporeal membrane oxygenation support despite gold-standard therapy: a case report. Eur Heart J Case Rep 2022; 6:ytac020. [PMID: 35233483 PMCID: PMC8874837 DOI: 10.1093/ehjcr/ytac020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 05/31/2021] [Accepted: 12/30/2021] [Indexed: 11/16/2022]
Abstract
Background Suicide left ventricle is a well-documented phenomenon occurring after valve replacement, however, it is most commonly described in the mitral valve replacement (MVR) and transcatheter aortic valve replacement (TAVR) population. Cases within the surgical aortic valve replacement (SAVR) population usually resolve with optimal medical and interventional therapies. We describe a case of left ventricular suicide following SAVR presenting with persistent haemodynamic instability despite currently accepted medical and surgical therapies. Case summary A 62-year-old male with severe aortic stenosis presented for SAVR and a MAZE procedure. There were no significant signs of ventricular hypertrophy on preoperative transthoracic echocardiogram (TTE). Intraoperatively, there was mild chordal systolic anterior motion of the mitral valve (SAM) which only occurred when underfilled. During recovery in the intensive care unit, the patient’s pulmonary arterial pressures were noted to rise with worsening cardiac output. Subsequent TTE showed severe dynamic left ventricular outflow tract (LVOT) obstruction secondary to SAM. Due to refractory medical management, an alcohol septal ablation was performed. Despite resolution of obstruction, the patient exhibited biochemical signs of systemic hypoperfusion, and thus veno-arterial extracorporeal membrane oxygenation (VA-ECMO) support was initiated. Following 72 h of VA-ECMO support, the patient was weaned with complete resolution of biochemical insults. He was subsequently discharged from the hospital without complication. Discussion Compared to the TAVR population, suicide ventricle post-SAVR is comparatively rare. Patients who exhibit persistent impaired cardiac output postoperatively should be investigated rapidly with echocardiography. Furthermore, resolution of a LVOT obstruction state from procedural intervention may not immediately follow with improved cardiac output, and may require further supportive management.
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Affiliation(s)
- Peter Andrew Lioufas
- Department of Intensive Care, Epworth Richmond, Ground Floor, 89 Bridge Road, Richmond, Victoria 3121, Australia
| | - Diane N Kelly
- Department of Intensive Care, Epworth Richmond, Ground Floor, 89 Bridge Road, Richmond, Victoria 3121, Australia
- Department of Intensive Care, The Royal Melbourne Hospital, Level 5 Building B, 300 Grattan Street, Parkville, Victoria 3050, Australia
- Faculty of Medicine, Nursing and Health Sciences, Monash University, 27 Rainforest Walk, Clayton, Victoria 3800, Australia
| | - Kyle S Brooks
- Department of Intensive Care, Epworth Richmond, Ground Floor, 89 Bridge Road, Richmond, Victoria 3121, Australia
- Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Building 104, Alan Gilbert Building, University of Melbourne, 161 Barry Street, Carlton, Victoria 3010, Australia
| | - Silvana F Marasco
- Department of Cardiothoracic Surgery, Epworth Richmond, Epworth Centre, Suite 8.6, 32 Erin Street, Richmond, Victoria 3121, Australia
- Department of Cardiothoracic Surgery and Transplantation, The Alfred Hospital, Commercial Road, Melbourne, Victoria 3004, Australia
- Department of Surgery, Monash University, The Alfred Hospital, Central Clinical School, Level 6, Alfred Centre, 99 Commercial Road, Melbourne, Victoria 3004, Australia
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18
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[Extracorporeal membrane oxygenation and hemodynamics : Therapy is not only a friend of the heart]. DIE ANAESTHESIOLOGIE 2022; 71:967-982. [PMID: 36449054 PMCID: PMC9709734 DOI: 10.1007/s00101-022-01230-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 11/08/2022] [Indexed: 12/03/2022]
Abstract
Extracorporeal support systems for the heart and lungs are employed for cardiac, pulmonary and also cardiopulmonary failure; however, neither the pure lung support by venovenous extracorporeal membrane oxygenation (vvECMO) nor the venoarterial (va) ECMO behave in a hemodynamically inert manner with respect to the patient's own cardiovascular system. The success of ECMO treatment is decisively dependent on monitoring before and during the execution and the pathophysiological understanding of the hemodynamic changes that occur during treatment. This article explicitly elucidates these "concomitant phenomena" and discusses fundamental aspects of cardiovascular physiology and the specific interplay with ECMO treatment.
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19
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Zarragoikoetxea I, Pajares A, Moreno I, Porta J, Koller T, Cegarra V, Gonzalez A, Eiras M, Sandoval E, Sarralde J, Quintana-Villamandos B, Vicente Guillén R. Documento de consenso SEDAR/SECCE sobre el manejo de ECMO. CIRUGIA CARDIOVASCULAR 2021. [DOI: 10.1016/j.circv.2021.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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20
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Zarragoikoetxea I, Pajares A, Moreno I, Porta J, Koller T, Cegarra V, Gonzalez AI, Eiras M, Sandoval E, Aurelio Sarralde J, Quintana-Villamandos B, Vicente Guillén R. SEDAR/SECCE ECMO management consensus document. REVISTA ESPANOLA DE ANESTESIOLOGIA Y REANIMACION 2021; 68:443-471. [PMID: 34535426 DOI: 10.1016/j.redare.2020.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 12/14/2020] [Indexed: 06/13/2023]
Abstract
ECMO is an extracorporeal cardiorespiratory support system whose use has been increased in the last decade. Respiratory failure, postcardiotomy shock, and lung or heart primary graft failure may require the use of cardiorespiratory mechanical assistance. In this scenario perioperative medical and surgical management is crucial. Despite the evolution of technology in the area of extracorporeal support, morbidity and mortality of these patients continues to be high, and therefore the indication as well as the ECMO removal should be established within a multidisciplinary team with expertise in the area. This consensus document aims to unify medical knowledge and provides recommendations based on both the recent bibliography and the main national ECMO implantation centres experience with the goal of improving comprehensive patient care.
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Affiliation(s)
- I Zarragoikoetxea
- Servicio de Anestesiología y Reanimación, Hospital Universitari i Politècnic La Fe, Valencia, Spain.
| | - A Pajares
- Servicio de Anestesiología y Reanimación, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - I Moreno
- Servicio de Anestesiología y Reanimación, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - J Porta
- Servicio de Anestesiología y Reanimación, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - T Koller
- Servicio de Anestesiología y Reanimación, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - V Cegarra
- Servicio de Anestesiología y Reanimación, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - A I Gonzalez
- Servicio de Anestesiología y Reanimación, Hospital Puerta de Hierro, Madrid, Spain
| | - M Eiras
- Servicio de Anestesiología y Reanimación, Hospital Clínico Universitario de Santiago, La Coruña, Spain
| | - E Sandoval
- Servicio de Cirugía Cardiovascular, Hospital Clínic de Barcelona, Barcelona, Spain
| | - J Aurelio Sarralde
- Servicio de Cirugía Cardiovascular, Hospital Universitario Marqués de Valdecilla, Santander, Spain
| | - B Quintana-Villamandos
- Servicio de Anestesiología y Reanimación, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - R Vicente Guillén
- Servicio de Anestesiología y Reanimación, Hospital Universitari i Politècnic La Fe, Valencia, Spain
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Luo JC, Su Y, Dong LL, Hou JY, Li X, Zhang Y, Ma GG, Zheng JL, Hao GW, Wang H, Zhang YJ, Luo Z, Tu GW. Trendelenburg maneuver predicts fluid responsiveness in patients on veno-arterial extracorporeal membrane oxygenation. Ann Intensive Care 2021; 11:16. [PMID: 33496906 PMCID: PMC7838230 DOI: 10.1186/s13613-021-00811-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 01/18/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Evaluation of fluid responsiveness during veno-arterial extracorporeal membrane oxygenation (VA-ECMO) support is crucial. The aim of this study was to investigate whether changes in left ventricular outflow tract velocity-time integral (ΔVTI), induced by a Trendelenburg maneuver, could predict fluid responsiveness during VA-ECMO. METHODS This prospective study was conducted in patients with VA-ECMO support. The protocol included four sequential steps: (1) baseline-1, a supine position with a 15° upward bed angulation; (2) Trendelenburg maneuver, 15° downward bed angulation; (3) baseline-2, the same position as baseline-1, and (4) fluid challenge, administration of 500 mL gelatin over 15 min without postural change. Hemodynamic parameters were recorded at each step. Fluid responsiveness was defined as ΔVTI of 15% or more, after volume expansion. RESULTS From June 2018 to December 2019, 22 patients with VA-ECMO were included, and a total of 39 measurements were performed. Of these, 22 measurements (56%) met fluid responsiveness. The R2 of the linear regression was 0.76, between ΔVTIs induced by Trendelenburg maneuver and the fluid challenge. The area under the receiver operating characteristic curve of ΔVTI induced by Trendelenburg maneuver to predict fluid responsiveness was 0.93 [95% confidence interval (CI) 0.81-0.98], with a sensitivity of 82% (95% CI 60-95%), and specificity of 88% (95% CI 64-99%), at a best threshold of 10% (95% CI 6-12%). CONCLUSIONS Changes in VTI induced by the Trendelenburg maneuver could effectively predict fluid responsiveness in VA-ECMO patients. Trial registration ClinicalTrials.gov, NCT03553459 (the TEMPLE study). Registered on May 30, 2018.
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Affiliation(s)
- Jing-Chao Luo
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ying Su
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Li-Li Dong
- Department of Echocardiography, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Institute of Medical Imaging, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jun-Yi Hou
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xin Li
- Department of Cardiovascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ying Zhang
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Guo-Guang Ma
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ji-Li Zheng
- Department of Nursing, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Guang-Wei Hao
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Huan Wang
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yi-Jie Zhang
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhe Luo
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, China.
- Department of Critical Care Medicine, Xiamen Branch, Zhongshan Hospital, Fudan University, Xiamen, China.
| | - Guo-Wei Tu
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, China.
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Chen S, Fang F, Liu W, Liu C, Xu F. Cerebral Tissue Regional Oxygen Saturation as a Valuable Monitoring Parameter in Pediatric Patients Undergoing Extracorporeal Membrane Oxygenation. Front Pediatr 2021; 9:669683. [PMID: 34178887 PMCID: PMC8220806 DOI: 10.3389/fped.2021.669683] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 05/04/2021] [Indexed: 12/16/2022] Open
Abstract
Objective: Brain function monitoring technology for extracorporeal membrane oxygenation (ECMO) support has been developing quite slowly. Our objective was to explore the data distribution, variation trend, and variability of cerebral tissue regional oxygen saturation (CrSO2) in pediatric patients undergoing ECMO. Methods: Eight patients who received venoarterial ECMO (V-A ECMO) were included in our study. All of them accepted continuous CrSO2 monitoring by near-infrared spectroscopy (NIRS) within 12 h of ECMO initiation until ECMO wean. Differences in the CrSO2 distribution characteristic, the variation trend of daily CrSO2, and the variability of CrSO2 for the first 5 days following ECMO initiation were compared between survivors and non-survivors according to pediatric intensive care unit (PICU) mortality. Results: The percentage of time of CrSO2 <60% against the whole monitoring time was significantly lower in survivors in both hemispheres {right: 4.34% [interquartile range (IQR) = 0.39-8.55%] vs. 47.45% [IQR = 36.03-64.52%], p = 0.036; left: 0.40% [IQR = 0.01-1.15%] vs. 30.9% [IQR = 26.92-49.62%], p = 0.036}. Survivors had significantly higher CrSO2 on the first 4 days. Root mean of successive squared differences (RMSSD), the variability variable of CrSO2, was significantly lower in survivors (right: 3.29 ± 0.79 vs. 6.16 ± 0.67, p = 0.002; left: 3.56 ± 1.20 vs. 6.04 ± 1.44, p = 0.039). Conclusion: Lower CrSO2, CrSO2 <60% over a longer period of time, and higher fluctuation of CrSO2 are likely associated with PICU mortality in pediatric patients undergoing V-A ECMO. Clinical Trial Registry: URL: http://www.chictr.org.cn/showproj.aspx?proj=46639, trial registry number: ChiCTR1900028021.
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Affiliation(s)
- Song Chen
- Department of Critical Care Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Fang Fang
- Department of Critical Care Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Wenjun Liu
- Department of Critical Care Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Chengjun Liu
- Department of Critical Care Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Feng Xu
- Department of Critical Care Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China
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23
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Holzgraefe B, Larsson A, Eksborg S, Kalzén H. Does extracorporeal membrane oxygenation attenuate hypoxic pulmonary vasoconstriction in a porcine model of global alveolar hypoxia? Acta Anaesthesiol Scand 2020; 64:992-1001. [PMID: 32236954 DOI: 10.1111/aas.13588] [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: 10/27/2019] [Revised: 03/05/2020] [Accepted: 03/06/2020] [Indexed: 12/01/2022]
Abstract
BACKGROUND During severe respiratory failure, hypoxic pulmonary vasoconstriction (HPV) is partly suppressed, but may still play a role in increasing pulmonary vascular resistance (PVR). Experimental studies suggest that the degree of HPV during severe respiratory failure is dependent on pulmonary oxygen tension (PvO2 ). Therefore, it has been suggested that increasing PvO2 by veno-venous extracorporeal membrane oxygenation (V-V ECMO) would adequately reduce PVR in V-V ECMO patients. OBJECTIVE Whether increased PvO2 by V-V ECMO decreases PVR in global alveolar hypoxia. METHODS Nine landrace pigs were ventilated with a mixture of oxygen and nitrogen. After 15 minutes of stable ventilation and hemodynamics, the animals were cannulated for V-V ECMO. Starting with alveolar normoxia, the fraction of inspiratory oxygen (FI O2 ) was stepwise reduced to establish different degrees of alveolar hypoxia. PvO2 was increased by V-V ECMO. RESULTS V-V ECMO decreased PVR (from 5.5 [4.5-7.1] to 3.4 [2.6-3.9] mm Hg L-1 min, P = .006) (median (interquartile range),) during ventilation with FI O2 of 0.15. At lower FI O2 , PVR increased; at FI O2 0.10 to 4.9 [4.2-7.0], P = .036, at FI O2 0.05 to 6.0 [4.3-8.6], P = .002, and at FI O2 0 to 5.4 [3.5 - 7.0] mm Hg L-1 min, P = .05. CONCLUSIONS The effect of increased PvO2 by V-V ECMO on PVR depended highly on the degree of alveolar hypoxia. Our results partly explain why V-V ECMO does not always reduce right ventricular afterload at severe alveolar hypoxia.
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Affiliation(s)
- Bernhard Holzgraefe
- Hedenstierna Laboratory Department of Surgical Sciences Uppsala University Uppsala Sweden
- Department of Anaesthesia Surgical Services and Intensive Care Medicine Arvika Community Hospital Arvika Sweden
| | - Anders Larsson
- Hedenstierna Laboratory Department of Surgical Sciences Uppsala University Uppsala Sweden
| | - Staffan Eksborg
- Department of Pediatric Anesthesia Intensive Care and ECMO services Astrid Lindgren Children's Hospital, Karolinska Institutet Karolinska University Hospital Solna Stockholm Sweden
- Childhood Cancer Research Unit Q6:05 Department of Women's and Children's Health Karolinska Institutet Astrid Lindgren Children's Hospital Karolinska University Hospital Solna Stockholm Sweden
| | - Håkan Kalzén
- Department of Pediatric Anesthesia Intensive Care and ECMO services Astrid Lindgren Children's Hospital, Karolinska Institutet Karolinska University Hospital Solna Stockholm Sweden
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24
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Roumy A, Liaudet L, Rusca M, Marcucci C, Kirsch M. Pulmonary complications associated with veno-arterial extra-corporeal membrane oxygenation: a comprehensive review. Crit Care 2020; 24:212. [PMID: 32393326 PMCID: PMC7216520 DOI: 10.1186/s13054-020-02937-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 04/30/2020] [Indexed: 01/07/2023] Open
Abstract
Veno-arterial extracorporeal membrane oxygenation (VA-ECMO) is a life-saving technology that provides transient respiratory and circulatory support for patients with profound cardiogenic shock or refractory cardiac arrest. Among its potential complications, VA-ECMO may adversely affect lung function through various pathophysiological mechanisms. The interaction of blood components with the biomaterials of the extracorporeal membrane elicits a systemic inflammatory response which may increase pulmonary vascular permeability and promote the sequestration of polymorphonuclear neutrophils within the lung parenchyma. Also, VA-ECMO increases the afterload of the left ventricle (LV) through reverse flow within the thoracic aorta, resulting in increased LV filling pressure and pulmonary congestion. Furthermore, VA-ECMO may result in long-standing pulmonary hypoxia, due to partial shunting of the pulmonary circulation and to reduced pulsatile blood flow within the bronchial circulation. Ultimately, these different abnormalities may result in a state of persisting lung inflammation and fibrotic changes with concomitant functional impairment, which may compromise weaning from VA-ECMO and could possibly result in long-term lung dysfunction. This review presents the mechanisms of lung damage and dysfunction under VA-ECMO and discusses potential strategies to prevent and treat such alterations.
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Affiliation(s)
- Aurélien Roumy
- Department of Cardiovascular Surgery, University Hospital, Lausanne, Switzerland.
| | - Lucas Liaudet
- Department of Intensive Care Medicine, University Hospital, Lausanne, Switzerland
| | - Marco Rusca
- Department of Intensive Care Medicine, University Hospital, Lausanne, Switzerland
| | - Carlo Marcucci
- Department of Anesthesiology, University Hospital, Lausanne, Switzerland
| | - Matthias Kirsch
- Department of Cardiovascular Surgery, University Hospital, Lausanne, Switzerland
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25
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Solholm A, Salminen PR, Stangeland L, Moen CA, Mongstad A, Svenheim B, Haaverstad R, Grong K. Myocardial perfusion and cardiac dimensions during extracorporeal membrane oxygenation-supported circulation in a porcine model of critical post-cardiotomy failure. Perfusion 2020; 35:763-771. [PMID: 32126949 PMCID: PMC7686924 DOI: 10.1177/0267659120907557] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Introduction: Venoarterial extracorporeal membrane oxygenation is widely used as mechanical circulatory support for severe heart failure. A major concern with this treatment modality is left ventricular distension due to inability to overcome the afterload created by the extracorporeal membrane oxygenation circuit. The present porcine study evaluates coronary circulation, myocardial perfusion and ventricular distension during venoarterial extracorporeal membrane oxygenation. Methods: Ten anesthetized open-chest pigs were cannulated and put on cardiopulmonary bypass. Heart failure was achieved by 90 minutes of aortic cross-clamping with insufficient cardioplegic protection. After declamping, the animals were supported by venoarterial extracorporeal membrane oxygenation for 3 hours. Continuous haemodynamic measurements were performed at baseline, during cardiopulmonary bypass/aortic cross-clamping and during venoarterial extracorporeal membrane oxygenation. Fluorescent microsphere injections at baseline and after 1, 2 and 3 hours on venoarterial extracorporeal membrane oxygenation evaluated myocardial perfusion. Left ventricular function and distension were assessed by epicardial echocardiography. Results: The myocardial injury caused by 90 minutes of ischaemia resulted in a poorly contracting myocardium, necessitating venoarterial extracorporeal membrane oxygenation in all animals. The circulatory support maintained the mean arterial blood pressure within a satisfactory range. A hyperaemic left anterior descending coronary artery flow while on extracorporeal membrane oxygenation was observed compared to baseline. Myocardial tissue perfusion measured by microspheres was low, especially in the subendocardium. Echocardiography revealed myocardial tissue oedema, a virtually empty left ventricle, and a left ventricular output that remained negligible throughout the extracorporeal membrane oxygenation run. Conclusion: Coronary artery blood flow is maintained during venoarterial extracorporeal membrane oxygenation after cardiopulmonary bypass and cardioplegic arrest despite severely affected performance of the left ventricle. Myocardial perfusion decreases, however, presumably due to rapid development of myocardial tissue oedema.
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Affiliation(s)
- Atle Solholm
- Section of Cardiothoracic Surgery, Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | - Pirjo-Riitta Salminen
- Section of Cardiothoracic Surgery, Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | - Lodve Stangeland
- Department of Clinical Science, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Christian Arvei Moen
- Section of Cardiothoracic Surgery, Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | - Arve Mongstad
- Section of Cardiothoracic Surgery, Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | - Bård Svenheim
- Section of Cardiothoracic Surgery, Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | - Rune Haaverstad
- Section of Cardiothoracic Surgery, Department of Heart Disease, Haukeland University Hospital, Bergen, Norway.,Department of Clinical Science, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Ketil Grong
- Department of Clinical Science, Faculty of Medicine, University of Bergen, Bergen, Norway
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26
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Contemporary Comprehensive Monitoring of Veno-arterial Extracorporeal Membrane Oxygenation Patients. Can J Cardiol 2019; 36:291-299. [PMID: 31924449 DOI: 10.1016/j.cjca.2019.10.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 10/17/2019] [Accepted: 10/30/2019] [Indexed: 01/09/2023] Open
Abstract
The use of veno-arterial extracorporeal membrane oxygenation (VA ECMO) has increased substantially over the past few decades. Today's clinicians now have a powerful means with which to salvage a growing population of patients at risk for cardiopulmonary collapse. At the same time, patients supported with VA ECMO have become increasingly more complex. The successful use of VA ECMO depends not only on selecting the appropriate patients, but also on effectively navigating a potential torrent of device- and patient-related complications until ECMO is no longer needed. A multitude of monitoring tools are now available to help the treatment team determine the adequacy of care, to detect problems, and to anticipate recovery. Monitoring with devices such as the Swan-Ganz catheter, transthoracic and transesophageal echocardiography, chest radiography, and near-infrared spectroscopy can provide useful information to complement routine clinical care. Leveraging data derived from the ECMO circuit itself also can be instrumental in both evaluating the sufficiency of support and troubleshooting complications. Each of these tools, however, has its own unique sets of limitations and liabilities. A thorough understanding of these risks and benefits is critical to the contemporary care of the individual managed with VA ECMO. In addition, more research is needed to establish optimal evidence-based care pathways and best-practice principles for using these devices to improve patient outcomes.
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