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Shin S, Nasim U, O'Connor H, Hong Y. Progress towards permanent respiratory support. Curr Opin Organ Transplant 2024:00075200-990000000-00129. [PMID: 38990111 DOI: 10.1097/mot.0000000000001163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
PURPOSE OF REVIEW Although lung transplantation stands as the gold standard curative therapy option for end-stage lung disease, the scarcity of available organs poses a significant challenge in meeting the escalating demand. This review provides an overview of recent advancements in ambulatory respiratory assist systems, selective anticoagulation therapies that target the intrinsic pathway, and innovative surface coatings to enable permanent respiratory support as a viable alternative to lung transplantation. RECENT FINDINGS Several emerging ambulatory respiratory assist systems have shown promise in both preclinical and clinical trials. These systems aim to create more biocompatible, compact, and portable forms of extracorporeal membrane oxygenation that can provide long-term respiratory support. Additionally, innovative selective anticoagulation strategies, currently in various stages of preclinical or clinical development, present a promising alternative to currently utilized nonselective anticoagulants. Moreover, novel surface coatings hold the potential to locally prevent artificial surface-induced thrombosis and minimize bleeding risks. SUMMARY This review of recent advancements toward permanent respiratory support summarizes the development of ambulatory respiratory assist systems, selective anticoagulation therapies, and novel surface coatings. The integration of these evolving device technologies with targeted anticoagulation strategies may allow a safe and effective mode of permanent respiratory support for patients with chronic lung disease.
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Affiliation(s)
- Suji Shin
- Department of Biomedical Engineering, Carnegie Mellon University
| | - Umar Nasim
- Department of Biomedical Engineering, Carnegie Mellon University
| | - Hassana O'Connor
- Department of Biomedical Engineering, Carnegie Mellon University
| | - Yeahwa Hong
- Department of Biomedical Engineering, Carnegie Mellon University
- Department of Surgery, the University of Pittsburgh Medical Center
- Department of Cardiothoracic Surgery, the University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania (PA), USA
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2
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Hong Y, Shin S, Nasim U, Roberts KG, Potchernikov AS, Liu KY, Dufendach KA, Skoog DJ, Bacchetta M, Cook KE. Hemocompatibility Evaluation of a Novel Ambulatory Pulmonary Assist System Using a Lightweight Axial-Flow Pump. ASAIO J 2024:00002480-990000000-00481. [PMID: 38728744 DOI: 10.1097/mat.0000000000002227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2024] Open
Abstract
The Pulmonary Assist System (PAS) is currently under development as a wearable respiratory assist system. In this study, the hemocompatibility of the PAS's axial-flow mechanical pump (AFP) was compared to other contemporary mechanical pumps in an acute ovine model. The PAS was attached to a normal sheep in a venovenous configuration using one of three pumps: 1) AFP, 2) ReliantHeart HeartAssist 5 (control), or 3) Abbott Pedimag (control) (n = 5 each). Each sheep was supported on the PAS for 12 hours with two L/minute of blood flow and four L/minute of sweep gas. Hemolysis, coagulation, inflammation, and platelet activation and loss were compared among the groups. In this study, the plasma-free hemoglobin (pfHb) was less than 10 mg/dl in all groups. The pfHb was significantly lower in the AFP group compared to other groups. There was no significant clot formation in the pumps and oxygenators in all groups. Furthermore, no significant differences in coagulation (oxygenator resistance, fibrinopeptide A), inflammation (white blood cell counts, IL-8), and platelet activation and loss (p-selectin, platelet counts) were observed among the groups (all, p > 0.05). This study demonstrates equivalent hemocompatibility of the PAS's AFP to other contemporary mechanical pumps with a reduced level of hemolysis on startup.
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Affiliation(s)
- Yeahwa Hong
- From the Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania
- Surgery
| | - Suji Shin
- From the Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania
| | - Umar Nasim
- From the Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania
| | - Kalliope G Roberts
- From the Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania
| | - Alexander S Potchernikov
- From the Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania
| | - Kimberly Y Liu
- From the Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania
| | - Keith A Dufendach
- Cardiothoracic Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - David J Skoog
- Advanced Respiratory Technologies, Inc, Pittsburgh, Pennsylvania
| | - Matthew Bacchetta
- Cardiac Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Keith E Cook
- From the Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania
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3
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Geetha S, Verma N, Chakole V. A Comprehensive Review of Extra Corporeal Membrane Oxygenation: The Lifeline in Critical Moments. Cureus 2024; 16:e53275. [PMID: 38435953 PMCID: PMC10905309 DOI: 10.7759/cureus.53275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 01/31/2024] [Indexed: 03/05/2024] Open
Abstract
Extracorporeal membrane oxygenation (ECMO) has evolved into a pivotal intervention in critical care, offering a lifeline for patients facing severe respiratory or cardiac failure. This review provides a comprehensive exploration of ECMO, spanning its definition and historical background to its contemporary advancements and ongoing impact in critical care. The versatility of ECMO in addressing diverse critical conditions, careful patient selection criteria, and the nuanced management of complications are discussed. Advances in technology, including miniaturization, novel circuit designs, and the integration of remote monitoring, showcase the evolving landscape of ECMO. The review underscores the ongoing impact of ECMO in improving survival rates, enhancing mobility, and enabling remote expertise. As a symbol of hope and innovation, ECMO's lifesaving potential is evident in its ability to navigate the complexities of critical care and redefine the boundaries of life support interventions.
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Affiliation(s)
- Sindhu Geetha
- Anaesthesiology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Neeta Verma
- Anaesthesiology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Vivek Chakole
- Anaesthesiology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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Koziol KJ, Isath A, Rao S, Gregory V, Ohira S, Van Diepen S, Lorusso R, Krittanawong C. Extracorporeal Membrane Oxygenation (VA-ECMO) in Management of Cardiogenic Shock. J Clin Med 2023; 12:5576. [PMID: 37685643 PMCID: PMC10488419 DOI: 10.3390/jcm12175576] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/13/2023] [Accepted: 08/17/2023] [Indexed: 09/10/2023] Open
Abstract
Cardiogenic shock is a critical condition of low cardiac output resulting in insufficient systemic perfusion and end-organ dysfunction. Though significant advances have been achieved in reperfusion therapy and mechanical circulatory support, cardiogenic shock continues to be a life-threatening condition associated with a high rate of complications and excessively high patient mortality, reported to be between 35% and 50%. Extracorporeal membrane oxygenation can provide full cardiopulmonary support, has been increasingly used in the last two decades, and can be used to restore systemic end-organ hypoperfusion. However, a paucity of randomized controlled trials in combination with high complication and mortality rates suggest the need for more research to better define its efficacy, safety, and optimal patient selection. In this review, we provide an updated review on VA-ECMO, with an emphasis on its application in cardiogenic shock, including indications and contraindications, expected hemodynamic and echocardiographic findings, recommendations for weaning, complications, and outcomes. Furthermore, specific emphasis will be devoted to the two published randomized controlled trials recently presented in this setting.
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Affiliation(s)
- Klaudia J. Koziol
- School of Medicine, New York Medical College and Westchester Medical Center, Valhalla, NY 10595, USA
| | - Ameesh Isath
- Department of Cardiology, Westchester Medical Center, Valhalla, NY 10595, USA
| | - Shiavax Rao
- Department of Medicine, MedStar Union Memorial Hospital, Baltimore, MD 21218, USA
| | - Vasiliki Gregory
- Department of Medicine, MedStar Union Memorial Hospital, Baltimore, MD 21218, USA
| | - Suguru Ohira
- Division of Cardiothoracic Surgery, New York Medical College and Westchester Medical Center, Valhalla, NY 10595, USA
| | - Sean Van Diepen
- Division of Cardiology and Critical Care, University of Alberta, Edmonton, AB T6G 2R3, Canada
| | - Roberto Lorusso
- Cardio-Thoracic Surgery Department, Heart & Vascular Centre, Maastricht University Medical Centre, Cardiovascular Research Institute Maastricht, 6202 AZ Maastricht, The Netherlands
| | - Chayakrit Krittanawong
- Cardiology Division, NYU Langone Health and NYU School of Medicine, New York, NY 10016, USA
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Chiel LE, Winthrop ZA, Fynn-Thompson F, Midyat L. Extracorporeal membrane oxygenation and paracorporeal lung assist devices as a bridge to pediatric lung transplantation. Pediatr Transplant 2022; 26:e14289. [PMID: 35416395 DOI: 10.1111/petr.14289] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/31/2022] [Accepted: 04/03/2022] [Indexed: 01/16/2023]
Abstract
BACKGROUND "Bridging" is a term used to describe the implementation of various treatment modalities to improve waitlist survival while a patient awaits lung transplantation. ECMO and PLAD are technologies used to bridge patients to lung transplantation. ECMO and PLAD are cardiopulmonary support systems that help move blood forward while using an artificial membrane to remove CO2 from and add O2 to the blood. Recent studies showed that these technologies are increasingly effective in bridging patients to lung transplantation, especially with optimizing patient selection, implementing physical rehabilitation and ambulation goals, standardization of management decisions, and increasing staff experience, among other considerations. We review these technologies, their roles as bridges to pediatric lung transplantation, as well as indications, contraindications, complications, and mortality rates. CONCLUSION Finally, we discuss the existing knowledge gaps and areas for future research to improve patient outcomes and understanding of lung assist devices.
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Affiliation(s)
- Laura E Chiel
- Division of Pulmonary Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Zachary A Winthrop
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Francis Fynn-Thompson
- Department of Cardiac Surgery, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Levent Midyat
- Division of Pulmonary Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
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Arjuna A, Olson MT, Walia R. Current trends in candidate selection, contraindications, and indications for lung transplantation. J Thorac Dis 2022; 13:6514-6527. [PMID: 34992831 PMCID: PMC8662491 DOI: 10.21037/jtd-2021-09] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 01/27/2021] [Indexed: 12/23/2022]
Abstract
Lung transplantation is an established treatment option that can improve quality of life and prolong survival for select patients diagnosed with end-stage lung disease. Given the gaps in organ donation and failures to make effective use of available organs, careful selection of candidates for lung transplant remains one of the most important considerations of the transplant community. Toward this end, we briefly reviewed recent trends in pretransplant evaluation, candidate selection, organ allocation, and organ preservation techniques. Since the latest consensus statement regarding appropriate selection of lung transplant candidates, many advances in the science and practice of lung transplantation have emerged and influenced our perspective of ‘contraindications’ to transplant. These advances have made it increasingly possible to pursue lung transplant in patients with risk factors for decreased survival—namely, older recipient age, increased body mass index, previous chest surgery, poorer nutritional status, and presence of chronic infection, cardiovascular disease, or extrapulmonary comorbid conditions. Therefore, we reviewed the updated evidence demonstrating the prognostic impact of these risk factors in lung transplant recipients. Lastly, we reviewed the salient evidence for current trends in disease-specific indications for lung transplantation, such as chronic obstructive pulmonary disease, idiopathic pulmonary fibrosis, cystic fibrosis, emphysema due to alpha-1 antitrypsin deficiency, and pulmonary arterial hypertension, among other less common end-stage diseases. Overall, lung transplant remains an exciting field with considerable hope for patients as they experience remarkable improvements in quality of life and survival in the modern era.
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Affiliation(s)
- Ashwini Arjuna
- Norton Thoracic Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, USA
| | - Michael T Olson
- Norton Thoracic Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, USA.,University of Arizona College of Medicine - Phoenix, Phoenix, AZ, USA
| | - Rajat Walia
- Norton Thoracic Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, USA
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Pagani FD. Commentary: Finding a solution to the problem: Innovation at its finest. JTCVS Tech 2021; 9:202-203. [PMID: 34647103 PMCID: PMC8501206 DOI: 10.1016/j.xjtc.2021.06.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 06/21/2021] [Accepted: 06/30/2021] [Indexed: 11/19/2022] Open
Affiliation(s)
- Francis D. Pagani
- Department of Cardiac Surgery, University of Michigan, Ann Arbor, Mich
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8
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Georges G, Kalavrouziotis D, Mohammadi S. Commentary: Walking wounded: Role of ambulatory femoral venovenous extracorporeal membrane oxygenation. JTCVS Tech 2021; 9:204-205. [PMID: 34647104 PMCID: PMC8501209 DOI: 10.1016/j.xjtc.2021.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 07/05/2021] [Accepted: 07/07/2021] [Indexed: 11/29/2022] Open
Affiliation(s)
- Gabriel Georges
- Department of Cardiac Surgery, Quebec Heart and Lung Institute, Québec City, Québec, Canada
| | - Dimitri Kalavrouziotis
- Department of Cardiac Surgery, Quebec Heart and Lung Institute, Québec City, Québec, Canada
| | - Siamak Mohammadi
- Department of Cardiac Surgery, Quebec Heart and Lung Institute, Québec City, Québec, Canada
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Cohen W, Mirzai S, Li Z, Combs P, Hu K, Rose R, Kagan V, Song TH, Cormican DS, Braus N, Chaney MA. Personalized ECMO: Crafting Individualized Support. J Cardiothorac Vasc Anesth 2021; 36:1477-1486. [PMID: 34526239 DOI: 10.1053/j.jvca.2021.08.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 08/12/2021] [Indexed: 11/11/2022]
Affiliation(s)
- William Cohen
- Section of Cardiac Surgery, Department of Surgery, University of Chicago Medicine, Chicago, IL
| | - Saeid Mirzai
- Section of Cardiac Surgery, Department of Surgery, University of Chicago Medicine, Chicago, IL
| | - Zhaozhi Li
- Section of Cardiac Surgery, Department of Surgery, University of Chicago Medicine, Chicago, IL
| | - Pamela Combs
- Section of Cardiac Surgery, Department of Surgery, University of Chicago Medicine, Chicago, IL
| | - Kelli Hu
- Section of Cardiac Surgery, Department of Surgery, University of Chicago Medicine, Chicago, IL
| | - Rebecca Rose
- Section of Cardiac Surgery, Department of Surgery, University of Chicago Medicine, Chicago, IL
| | - Viktoriya Kagan
- Section of Cardiac Surgery, Department of Surgery, University of Chicago Medicine, Chicago, IL
| | - Tae H Song
- Section of Cardiac Surgery, Department of Surgery, University of Chicago Medicine, Chicago, IL
| | - Daniel S Cormican
- Division of Cardiothoracic Anesthesiology, Division of Surgical Critical Care, Anesthesiology Institute, Allegheny Health Network, Pittsburgh, PA
| | - Nicholas Braus
- Pulmonary Medicine Service, William S. Middleton Memorial Veterans Hospital, Madison, WI
| | - Mark A Chaney
- Department of Anesthesia and Critical Care, The University of Chicago, Chicago, IL.
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10
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Abstract
Lung transplantation can improve quality of life and prolong survival for individuals with end-stage lung disease, and many advances in the realms of both basic science and clinical research aspects of lung transplantation have emerged over the past few decades. However, many challenges must yet be overcome to increase post-transplant survival. These include successfully bridging patients to transplant, expanding the lung donor pool, inducing tolerance, and preventing a myriad of post-transplant complications that include primary graft dysfunction, forms of cellular and antibody-mediated rejection, chronic lung allograft dysfunction, and infections. The goal of this manuscript is to review salient recent and evolving advances in the field of lung transplantation.
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Affiliation(s)
- Keith C Meyer
- UW Lung Transplant & Advanced Pulmonary Disease Program, Section of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
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11
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Ellouze O, Lamirel J, Perrot J, Missaoui A, Daily T, Aho S, Petrosyan A, Guinot PG, Bouchot O, Bouhemad B. Extubation of patients undergoing extracorporeal life support. A retrospective study. Perfusion 2018; 34:50-57. [DOI: 10.1177/0267659118791072] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Introduction: The use of extracorporeal life support (ECLS) is increasing worldwide, in particular for the management of refractory cardiac arrest, cardiogenic shock and post cardiopulmonary bypass ventricular failure. Extubation of patients under extracorporeal membrane oxygenation (ECMO) for respiratory failure is a growing practice for adult and pediatric patients, especially for lung transplantation candidates. Because of potential complications and, specifically, accidental arterial decannulation, extubation of patients under ECLS is not standard practice. Our goal was to evaluate the interest in patient extubation under ECLS. Materials and methods: We performed a monocentric, retrospective study of all ECLS cases between January 2014 and January 2016. We excluded patients who died within the first 48 hours of ECLS. Results: We analyzed 57 of the initial 109 patients included in the study. The initial SOFA score was higher in the non-extubated group under ECLS, without significant difference (8.6 ± 2.8 vs 7.2 ± 2.1, p=0.065). Patients who were not extubated had a higher rate of acquired ventilator pneumonia (61.9% vs 26.7%, p=0.03). Moreover, patients who were extubated under ECLS had better 30-day survival rates (73.3% vs 40.5%, p=0.04). In multivariate analyses, the independent factors associated with mortality were age, duration of ECLS and the lack of extubation under ECLS. Conclusion: Extubation of patients under ECLS is safe and feasible. Furthermore, in extubated patients, we observed fewer cases of ventilator-associated pneumonia and better 30-day survival rates.
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Affiliation(s)
- Omar Ellouze
- Service d’Anesthésie Réanimation, CHU de Dijon, Dijon, France
| | - Julie Lamirel
- Service d’Anesthésie Réanimation, CHU de Dijon, Dijon, France
| | - Justine Perrot
- Service d’Anesthésie Réanimation, CHU de Dijon, Dijon, France
| | - Anis Missaoui
- Service d’Anesthésie Réanimation, CHU de Dijon, Dijon, France
| | - Theresa Daily
- Service d’Anesthésie Réanimation, CHU de Dijon, Dijon, France
| | - Serge Aho
- Service d’Epidémiologie et d’Hygiène Hospitalières, CHU de Dijon, Dijon, France
| | - Andranik Petrosyan
- Service de Chirurgie Cardiaque, Vasculaire et Thoracique, CHU de Dijon, Dijon, France
| | | | - Oliver Bouchot
- Service de Chirurgie Cardiaque, Vasculaire et Thoracique, CHU de Dijon, Dijon, France
| | - Belaid Bouhemad
- Service d’Anesthésie Réanimation, CHU de Dijon, Dijon, France
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