1
|
Passarelli MT, Petit M, Garberi R, Lebreton G, Luyt CE, Pineton De Chambrun M, Chommeloux J, Hékimian G, Rezoagli E, Foti G, Combes A, Giani M, Schmidt M. Mechanical ventilation settings during weaning from venovenous extracorporeal membrane oxygenation. Ann Intensive Care 2024; 14:138. [PMID: 39230734 PMCID: PMC11374948 DOI: 10.1186/s13613-024-01359-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Accepted: 08/02/2024] [Indexed: 09/05/2024] Open
Abstract
BACKGROUND The optimal timing of weaning from venovenous extracorporeal membrane oxygenation (VV ECMO) and its modalities have been rarely studied. METHODS Retrospective, multicenter cohort study over 7 years in two tertiary ICUs, high-volume ECMO centers in France and Italy. Patients with ARDS on ECMO and successfully weaned from VV ECMO were classified based on their mechanical ventilation modality during the sweep gas-off trial (SGOT) with either controlled mechanical ventilation or spontaneous breathing (i.e. pressure support ventilation). The primary endpoint was the time to successful weaning from mechanical ventilation within 90 days post-ECMO weaning. RESULTS 292 adult patients with severe ARDS were weaned from controlled ventilation, and 101 were on spontaneous breathing during SGOT. The 90-day probability of successful weaning from mechanical ventilation was not significantly different between the two groups (sHR [95% CI], 1.23 [0.84-1.82]). ECMO-related complications were not statistically different between patients receiving these two mechanical ventilation strategies. After adjusting for covariates, older age, higher pre-ECMO sequential organ failure assessment score, pneumothorax, ventilator-associated pneumonia, and renal replacement therapy, but not mechanical ventilation modalities during SGOT, were independently associated with a lower probability of successful weaning from mechanical ventilation after ECMO weaning. CONCLUSIONS Time to successful weaning from mechanical ventilation within 90 days post-ECMO was not associated with the mechanical ventilation strategy used during SGOT. Further research is needed to assess the optimal ventilation strategy during weaning off VV ECMO and its impact on short- and long-term outcomes.
Collapse
Affiliation(s)
- Maria Teresa Passarelli
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- Department of Emergency and Intensive Care, Fondazione IRCCS San Gerardo Dei Tintori, Monza, Italy
| | - Matthieu Petit
- Assistance Publique-Hôpitaux de Paris, Service de Médecine Intensive-Réanimation, Institut de Cardiologie, Hôpital Pitié-Salpêtrière, 47 Boulevard de L'Hôpital, 75651, Paris Cedex 13, France
| | - Roberta Garberi
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- Department of Emergency and Intensive Care, Fondazione IRCCS San Gerardo Dei Tintori, Monza, Italy
| | - Guillaume Lebreton
- Sorbonne Université, INSERM, UMRS_1166-ICAN, Institute of Cardiometabolism and Nutrition, Paris, France
- Assistance Publique-Hôpitaux de Paris, Thoracic and Cardiovascular Department, Pitié-Salpêtrière Hospital, 75651, Paris Cedex 13, France
| | - Charles Edouard Luyt
- Assistance Publique-Hôpitaux de Paris, Service de Médecine Intensive-Réanimation, Institut de Cardiologie, Hôpital Pitié-Salpêtrière, 47 Boulevard de L'Hôpital, 75651, Paris Cedex 13, France
- Sorbonne Université, INSERM, UMRS_1166-ICAN, Institute of Cardiometabolism and Nutrition, Paris, France
| | - Marc Pineton De Chambrun
- Assistance Publique-Hôpitaux de Paris, Service de Médecine Intensive-Réanimation, Institut de Cardiologie, Hôpital Pitié-Salpêtrière, 47 Boulevard de L'Hôpital, 75651, Paris Cedex 13, France
| | - Juliette Chommeloux
- Assistance Publique-Hôpitaux de Paris, Service de Médecine Intensive-Réanimation, Institut de Cardiologie, Hôpital Pitié-Salpêtrière, 47 Boulevard de L'Hôpital, 75651, Paris Cedex 13, France
| | - Guillaume Hékimian
- Assistance Publique-Hôpitaux de Paris, Service de Médecine Intensive-Réanimation, Institut de Cardiologie, Hôpital Pitié-Salpêtrière, 47 Boulevard de L'Hôpital, 75651, Paris Cedex 13, France
| | - Emanuele Rezoagli
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- Department of Emergency and Intensive Care, Fondazione IRCCS San Gerardo Dei Tintori, Monza, Italy
| | - Giuseppe Foti
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- Department of Emergency and Intensive Care, Fondazione IRCCS San Gerardo Dei Tintori, Monza, Italy
| | - Alain Combes
- Assistance Publique-Hôpitaux de Paris, Service de Médecine Intensive-Réanimation, Institut de Cardiologie, Hôpital Pitié-Salpêtrière, 47 Boulevard de L'Hôpital, 75651, Paris Cedex 13, France
- Sorbonne Université, INSERM, UMRS_1166-ICAN, Institute of Cardiometabolism and Nutrition, Paris, France
| | - Marco Giani
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- Department of Emergency and Intensive Care, Fondazione IRCCS San Gerardo Dei Tintori, Monza, Italy
| | - Matthieu Schmidt
- Assistance Publique-Hôpitaux de Paris, Service de Médecine Intensive-Réanimation, Institut de Cardiologie, Hôpital Pitié-Salpêtrière, 47 Boulevard de L'Hôpital, 75651, Paris Cedex 13, France.
- Sorbonne Université, INSERM, UMRS_1166-ICAN, Institute of Cardiometabolism and Nutrition, Paris, France.
| |
Collapse
|
2
|
Hermann M, König S, Laxar D, Krall C, Kraft F, Krenn K, Baumgartner C, Tretter V, Maleczek M, Hermann A, Fraunschiel M, Ullrich R. Low-Frequency Ventilation May Facilitate Weaning in Acute Respiratory Distress Syndrome Treated with Extracorporeal Membrane Oxygenation: A Randomized Controlled Trial. J Clin Med 2024; 13:5094. [PMID: 39274307 PMCID: PMC11396271 DOI: 10.3390/jcm13175094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2024] [Revised: 08/23/2024] [Accepted: 08/24/2024] [Indexed: 09/16/2024] Open
Abstract
Although extracorporeal membrane ventilation offers the possibility for low-frequency ventilation, protocols commonly used in patients with acute respiratory distress syndrome (ARDS) and treated with extracorporeal membrane oxygenation (ECMO) vary largely. Whether strict adherence to low-frequency ventilation offers benefit on important outcome measures is poorly understood. Background/Objectives: This pilot clinical study investigated the efficacy of low-frequency ventilation on ventilator-free days (VFDs) in patients suffering from ARDS who were treated with ECMO therapy. Methods: In this single-center randomized controlled trial, 44 (70% male) successive ARDS patients treated with ECMO (aged 56 ± 12 years, SAPS III 64 (SD ± 14)) were randomly assigned 1:1 to the control group (conventional ventilation) or the treatment group (low-frequency ventilation during first 72 h on ECMO: respiratory rate 4-5/min; PEEP 14-16 cm H2O; plateau pressure 23-25 cm H2O, tidal volume: <4 mL/kg). The primary endpoint was VFDs at day 28 after starting ECMO treatment. The major secondary endpoint was ICU mortality, 28-day mortality and 90-day mortality. Results: Twenty-three (52%) patients were successfully weaned from ECMO and were discharged from the intensive care unit (ICU). Twelve patients in the treatment group and five patients in the control group showed more than one VFD at day 28 of ECMO treatment. VFDs were 3.0 (SD ± 5.5) days in the control group and 5.4 (SD ± 6) days in the treatment group (p = 0.117). Until day 28 of ECMO initiation, patients in the treatment group could be successfully weaned off of the ventilator more often (OR of 0.164 of 0 VFDs at day 28 after ECMO start; 95% CI 0.036-0.758; p = 0.021). ICU mortality did not differ significantly (36% in treatment group and 59% in control group; p = 0.227). Conclusions: Low-frequency ventilation is comparable to conventional protective ventilation in patients with ARDS who have been treated with ECMO. However, low-frequency ventilation may support weaning from invasive mechanical ventilation in patients suffering from ARDS and treated with ECMO therapy.
Collapse
Affiliation(s)
- Martina Hermann
- Department of Anaesthesia, General Intensive Care and Pain Medicine, Medical University of Vienna, Spitalgasse 23, 1090 Vienna, Austria
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Währingerstraße 104/10, 1180 Vienna, Austria
| | - Sebastian König
- Department of Anaesthesia, General Intensive Care and Pain Medicine, Medical University of Vienna, Spitalgasse 23, 1090 Vienna, Austria
| | - Daniel Laxar
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Währingerstraße 104/10, 1180 Vienna, Austria
| | - Christoph Krall
- Center for Medical Statistics, Informatics and Intelligent Systems, Medical University of Vienna, 1090 Vienna, Austria
| | - Felix Kraft
- Department of Anaesthesia, General Intensive Care and Pain Medicine, Medical University of Vienna, Spitalgasse 23, 1090 Vienna, Austria
| | - Katharina Krenn
- Department of Anaesthesia, General Intensive Care and Pain Medicine, Medical University of Vienna, Spitalgasse 23, 1090 Vienna, Austria
| | - Clemens Baumgartner
- Department of Internal Medicine III, Division of Endocrinology and Metabolism, Medical University of Vienna, Spitalgasse 23, 1090 Vienna, Austria
| | - Verena Tretter
- Department of Anaesthesia, General Intensive Care and Pain Medicine, Medical University of Vienna, Spitalgasse 23, 1090 Vienna, Austria
| | - Mathias Maleczek
- Department of Anaesthesia, General Intensive Care and Pain Medicine, Medical University of Vienna, Spitalgasse 23, 1090 Vienna, Austria
| | - Alexander Hermann
- Department of Medicine I, Intensive Care Unit 13i2, Medical University of Vienna, Spitalgasse 23, 1090 Vienna, Austria
| | - Melanie Fraunschiel
- IT4Science, Medical University of Vienna, Spitalgasse 23, 1090 Vienna, Austria
| | - Roman Ullrich
- Department of Anesthesiology and Intensive Care Medicine, AUVA Trauma Center Vienna, Kundratstraße 37, 1120 Vienna, Austria
| |
Collapse
|
3
|
Boesing C, Rocco PRM, Luecke T, Krebs J. Positive end-expiratory pressure management in patients with severe ARDS: implications of prone positioning and extracorporeal membrane oxygenation. Crit Care 2024; 28:277. [PMID: 39187853 PMCID: PMC11348554 DOI: 10.1186/s13054-024-05059-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Accepted: 08/06/2024] [Indexed: 08/28/2024] Open
Abstract
The optimal strategy for positive end-expiratory pressure (PEEP) titration in the management of severe acute respiratory distress syndrome (ARDS) patients remains unclear. Current guidelines emphasize the importance of a careful risk-benefit assessment for PEEP titration in terms of cardiopulmonary function in these patients. Over the last few decades, the primary goal of PEEP usage has shifted from merely improving oxygenation to emphasizing lung protection, with a growing focus on the individual pattern of lung injury, lung and chest wall mechanics, and the hemodynamic consequences of PEEP. In moderate-to-severe ARDS patients, prone positioning (PP) is recommended as part of a lung protective ventilation strategy to reduce mortality. However, the physiologic changes in respiratory mechanics and hemodynamics during PP may require careful re-assessment of the ventilation strategy, including PEEP. For the most severe ARDS patients with refractory gas exchange impairment, where lung protective ventilation is not possible, veno-venous extracorporeal membrane oxygenation (V-V ECMO) facilitates gas exchange and allows for a "lung rest" strategy using "ultraprotective" ventilation. Consequently, the importance of lung recruitment to improve oxygenation and homogenize ventilation with adequate PEEP may differ in severe ARDS patients treated with V-V ECMO compared to those managed conservatively. This review discusses PEEP management in severe ARDS patients and the implications of management with PP or V-V ECMO with respect to respiratory mechanics and hemodynamic function.
Collapse
Affiliation(s)
- Christoph Boesing
- Department of Anesthesiology and Critical Care Medicine, University Medical Center Mannheim, Medical Faculty Mannheim, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, 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
| | - Thomas Luecke
- Department of Anesthesiology and Critical Care Medicine, University Medical Center Mannheim, Medical Faculty Mannheim, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - Joerg Krebs
- Department of Anesthesiology and Critical Care Medicine, University Medical Center Mannheim, Medical Faculty Mannheim, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| |
Collapse
|
4
|
Grotberg JC, Reynolds D, Kraft BD. Extracorporeal Membrane Oxygenation for Respiratory Failure: A Narrative Review. J Clin Med 2024; 13:3795. [PMID: 38999360 PMCID: PMC11242398 DOI: 10.3390/jcm13133795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 06/20/2024] [Accepted: 06/23/2024] [Indexed: 07/14/2024] Open
Abstract
Extracorporeal membrane oxygenation support for respiratory failure in the intensive care unit continues to have an expanded role in select patients. While acute respiratory distress syndrome remains the most common indication, extracorporeal membrane oxygenation may be used in other causes of refractory hypoxemia and/or hypercapnia. The most common configuration is veno-venous extracorporeal membrane oxygenation; however, in specific cases of refractory hypoxemia or right ventricular failure, some patients may benefit from veno-pulmonary extracorporeal membrane oxygenation or veno-venoarterial extracorporeal membrane oxygenation. Patient selection and extracorporeal circuit management are essential to successful outcomes. This narrative review explores the physiology of extracorporeal membrane oxygenation, indications and contraindications, ventilator management, extracorporeal circuit management, troubleshooting hypoxemia, complications, and extracorporeal membrane oxygenation weaning in patients with respiratory failure. As the footprint of extracorporeal membrane oxygenation continues to expand, it is essential that clinicians understand the underlying physiology and management of these complex patients.
Collapse
Affiliation(s)
- John C. Grotberg
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, Saint Louis, MO 63131, USA; (D.R.); (B.D.K.)
| | | | | |
Collapse
|
5
|
Bluth T, Güldner A, Spieth PM. [Ventilation concepts under extracorporeal membrane oxygenation (ECMO) in acute respiratory distress syndrome (ARDS)]. DIE ANAESTHESIOLOGIE 2024; 73:352-362. [PMID: 38625538 DOI: 10.1007/s00101-024-01407-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Extracorporeal membrane oxygenation (ECMO) is often the last resort for escalation of treatment in patients with severe acute respiratory distress syndrome (ARDS). The success of treatment is mainly determined by patient-specific factors, such as age, comorbidities, duration and invasiveness of the pre-existing ventilation treatment as well as the expertise of the treating ECMO center. In particular, the adjustment of mechanical ventilation during ongoing ECMO treatment remains controversial. Although a reduction of invasiveness of mechanical ventilation seems to be reasonable due to physiological considerations, no improvement in outcome has been demonstrated so far for the use of ultraprotective ventilation regimens.
Collapse
Affiliation(s)
- Thomas Bluth
- Klinik für Anästhesiologie und Intensivtherapie, Universitätsklinikum Dresden, Fetscherstraße 74, 01307, Dresden, Deutschland
| | - Andreas Güldner
- Klinik für Anästhesiologie und Intensivtherapie, Universitätsklinikum Dresden, Fetscherstraße 74, 01307, Dresden, Deutschland
| | - Peter M Spieth
- Klinik für Anästhesiologie und Intensivtherapie, Universitätsklinikum Dresden, Fetscherstraße 74, 01307, Dresden, Deutschland.
| |
Collapse
|
6
|
Szuldrzynski K, Kowalewski M, Swol J. Mechanical ventilation during extracorporeal membrane oxygenation support - New trends and continuing challenges. Perfusion 2024; 39:107S-114S. [PMID: 38651573 DOI: 10.1177/02676591241232270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
BACKGROUND The impact of mechanical ventilation on the survival of patients supported with veno-venous extracorporeal membrane oxygenation (V-V ECMO) due to severe acute respiratory distress syndrome (ARDS) remains still a focus of research. METHODS Recent guidelines, randomized trials, and registry data underscore the importance of lung-protective ventilation during respiratory and cardiac support on ECMO. RESULTS This approach includes decreasing mechanical power delivery by reducing tidal volume and driving pressure as much as possible, using low or very low respiratory rate, and a personalized approach to positive-end expiratory pressure (PEEP) setting. Notably, the use of ECMO in awake and spontaneously breathing patients is increasing, especially as a bridging strategy to lung transplantation. During respiratory support in V-V ECMO, native lung function is of highest importance and adjustments of blood flow on ECMO, or ventilator settings significantly impact the gas exchange. These interactions are more complex in veno-arterial (V-A) ECMO configuration and cardiac support. The fraction on delivered oxygen in the sweep gas and sweep gas flow rate, blood flow per minute, and oxygenator efficiency have an impact on gas exchange on device side. On the patient side, native cardiac output, native lung function, carbon dioxide production (VCO2), and oxygen consumption (VO2) play a role. Avoiding pulmonary oedema includes left ventricle (LV) distension monitoring and prevention, pulse pressure >10 mm Hg and aortic valve opening assessment, higher PEEP adjustment, use of vasodilators, ECMO flow adjustment according to the ejection fraction, moderate use of inotropes, diuretics, or venting strategies as indicated and according to local expertise and resources. CONCLUSION Understanding the physiological principles of gas exchange during cardiac support on femoro-femoral V-A ECMO configuration and the interactions with native gas exchange and haemodynamics are essential for the safe applications of these techniques in clinical practice. Proning during ECMO remains to be discussed until further data is available from prospective, randomized trials implementing individualized PEEP titration during proning.
Collapse
Affiliation(s)
- Konstanty Szuldrzynski
- Department of Anaesthesiology and Intensive Care, National Institute of Medicine of the Ministry of Interior and Administration in Warsaw, Warsaw, Poland
| | - Mariusz Kowalewski
- Department of Cardiac Surgery and Transplantology, National Medical Institute of the Ministry of Interior and Administration, Warsaw, Poland
- Thoracic Research Centre, Collegium Medicum Nicolaus Copernicus University, Innovative Medical Forum, Bydgoszcz, Poland
- Department for the Treatment and Study of Cardiothoracic Diseases and Cardiothoracic Transplantation, IRCCS-ISMETT, Palermo, Italy
- Cardio-Thoracic Surgery Department, Heart and Vascular Centre, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Justyna Swol
- Department of Respiratory Medicine, Paracelsus Medical University, Nuremberg, Germany
| |
Collapse
|
7
|
van Minnen O, Jolink FE, van den Bergh WM, Droogh JM, Oude Lansink-Hartgring A. International Survey on Mechanical Ventilation During Extracorporeal Membrane Oxygenation. ASAIO J 2024; 70:300-304. [PMID: 38051596 PMCID: PMC10977054 DOI: 10.1097/mat.0000000000002101] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023] Open
Abstract
The optimal ventilation strategy for patients on extracorporeal membrane oxygenation (ECMO) remains uncertain. This survey reports current mechanical ventilation strategies adopted by ECMO centers worldwide. An international, multicenter, cross-sectional survey was conducted anonymously through an internet-based tool. Participants from North America, Europe, Asia, and Oceania were recruited from the extracorporeal life support organization (ELSO) directory. Responses were received from 48 adult ECMO centers (response rate 10.6%). Half of these had dedicated ventilation protocols for ECMO support. Pressure-controlled ventilation was the preferred initial ventilation mode for both venovenous ECMO (VV-ECMO) (60%) and venoarterial ECMO (VA-ECMO) (34%). In VV-ECMO, the primary goal was lung rest (93%), with rescue therapies commonly employed, especially neuromuscular blockade (93%) and prone positioning (74%). Spontaneous ventilation was typically introduced after signs of pulmonary recovery, with few centers using it as the initial mode (7%). A quarter of centers stopped sedation within 3 days after ECMO initiation. Ventilation strategies during VA-ECMO focused less on lung-protective goals and transitioned to spontaneous ventilation earlier. Ventilation strategies during ECMO support differ considerably. Controlled ventilation is predominantly used initially to provide lung rest, often facilitated by sedation and neuromuscular blockade. Few centers apply "awake ECMO" early during ECMO support, some utilizing partial neuromuscular blockade.
Collapse
Affiliation(s)
- Olivier van Minnen
- From the Department of Critical Care, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Floris E.J. Jolink
- From the Department of Critical Care, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Walter M. van den Bergh
- From the Department of Critical Care, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Joep M. Droogh
- From the Department of Critical Care, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | | |
Collapse
|
8
|
Cao JK, Hong XY, Feng ZC, Li QP. Mesenchymal stem cells-based therapies for severe ARDS with ECMO: a review. Intensive Care Med Exp 2024; 12:12. [PMID: 38332384 PMCID: PMC10853094 DOI: 10.1186/s40635-024-00596-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 01/11/2024] [Indexed: 02/10/2024] Open
Abstract
Acute respiratory distress syndrome (ARDS) is the primary cause of respiratory failure in critically ill patients. Despite remarkable therapeutic advances in recent years, ARDS remains a life-threatening clinical complication with high morbidity and mortality, especially during the global spread of the coronavirus disease 2019 (COVID-19) pandemic. Previous studies have demonstrated that mesenchymal stem cell (MSC)-based therapy is a potential alternative strategy for the treatment of refractory respiratory diseases including ARDS, while extracorporeal membrane oxygenation (ECMO) as the last resort treatment to sustain life can help improve the survival of ARDS patients. In recent years, several studies have explored the effects of ECMO combined with MSC-based therapies in the treatment of ARDS, and some of them have demonstrated that this combination can provide better therapeutic effects, while others have argued that some critical issues need to be solved before it can be applied to clinical practice. This review presents an overview of the current status, clinical challenges and future prospects of ECMO combined with MSCs in the treatment of ARDS.
Collapse
Affiliation(s)
- Jing-Ke Cao
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Xiao-Yang Hong
- Department of Pediatric Intensive Care Unit, Senior Department of Pediatrics, the Seventh Medical Center of PLA General Hospital, NO.5 Nanmencang, Dongcheng District, 100700, Beijing, China
| | - Zhi-Chun Feng
- Department of Neonatology, Senior Department of Pediatrics, the Seventh Medical Center of PLA General Hospital, NO. 5 Nanmencang, Dongcheng District, Beijing, 100700, China
| | - Qiu-Ping Li
- Department of Neonatology, Senior Department of Pediatrics, the Seventh Medical Center of PLA General Hospital, NO. 5 Nanmencang, Dongcheng District, Beijing, 100700, China.
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China.
| |
Collapse
|
9
|
Fumagalli J, Pesenti A. Ventilation during extracorporeal gas exchange in acute respiratory distress syndrome. Curr Opin Crit Care 2024; 30:69-75. [PMID: 38085872 PMCID: PMC10919266 DOI: 10.1097/mcc.0000000000001125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
PURPOSE OF REVIEW Accumulating evidence ascribes the benefit of extracorporeal gas exchange, at least in most severe cases, to the provision of a lung healing environment through the mitigation of ventilator-induced lung injury (VILI) risk. In spite of pretty homogeneous criteria for extracorporeal gas exchange application (according to the degree of hypoxemia/hypercapnia), ventilatory management during extracorporeal membrane oxygenation (ECMO)/carbon dioxide removal (ECCO 2 R) varies across centers. Here we summarize the recent evidence regarding the management of mechanical ventilation during extracorporeal gas exchange for respiratory support. RECENT FINDINGS At present, the most common approach to protect the native lung against VILI following ECMO initiation involves lowering tidal volume and driving pressure, making modest reductions in respiratory rate, while typically maintaining positive end-expiratory pressure levels unchanged.Regarding ECCO 2 R treatment, higher efficiency devices are required in order to reduce significantly respiratory rate and/or tidal volume. SUMMARY The best compromise between reduction of native lung ventilatory load, extracorporeal gas exchange efficiency, and strategies to preserve lung aeration deserves further investigation.
Collapse
Affiliation(s)
- Jacopo Fumagalli
- Department of Anesthesia, Critical Care and Emergency, Fondazione Istituto di Ricovero e cura a Carattere Scientifico Ca’ Granda Ospedale Maggiore Policlinico
| | - Antonio Pesenti
- Department of Anesthesia, Critical Care and Emergency, Fondazione Istituto di Ricovero e cura a Carattere Scientifico Ca’ Granda Ospedale Maggiore Policlinico
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| |
Collapse
|
10
|
Fernandez-Sarmiento J, Perez MC, Bustos JD, Acevedo L, Sarta-Mantilla M, Guijarro J, Santacruz C, Pardo DF, Castro D, Rosero YV, Mulett H. Association between mechanical ventilation parameters and mortality in children with respiratory failure on ECMO: a systematic review and meta-analysis. Front Pediatr 2024; 12:1302049. [PMID: 38292212 PMCID: PMC10824827 DOI: 10.3389/fped.2024.1302049] [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: 09/26/2023] [Accepted: 01/04/2024] [Indexed: 02/01/2024] Open
Abstract
Background In refractory respiratory failure (RF), extracorporeal membrane oxygenation (ECMO) is a salvage therapy that seeks to reduce lung injury induced by mechanical ventilation. The parameters of optimal mechanical ventilation in children during ECMO are not known. Pulmonary ventilatory management during this therapy may impact mortality. The objective of this study was to evaluate the association between ventilatory parameters in children during ECMO therapy and in-hospital mortality. Methods A systematic search of PubMed/MEDLINE, Embase, Cochrane, and Google Scholar from January 2013 until May 2022 (PROSPERO 450744), including studies in children with ECMO-supported RF assessing mechanical ventilation parameters, was conducted. Risk of bias was assessed using the Newcastle-Ottawa scale; heterogeneity, with absence <25% and high >75%, was assessed using I2. Sensitivity and subgroup analyses using the Mantel-Haenszel random-effects model were performed to explore the impact of methodological quality on effect size. Results Six studies were included. The median age was 3.4 years (IQR: 3.2-4.2). Survival in the 28-day studies was 69%. Mechanical ventilation parameters associated with higher mortality were a very low tidal volume ventilation (<4 ml/kg; OR: 4.70; 95% CI: 2.91-7.59; p < 0.01; I2: 38%), high plateau pressure (mean Dif: -0.70 95% CI: -0.18, -0.22; p < 0.01), and high driving pressure (mean Dif: -0.96 95% CI: -1.83, -0.09: p = 0.03). The inspired fraction of oxygen (p = 0.09) and end-expiratory pressure (p = 0.69) were not associated with higher mortality. Patients who survived had less multiple organ failure (p < 0.01). Conclusion The mechanical ventilation variables associated with higher mortality in children with ECMO-supported respiratory failure are high plateau pressures, high driving pressure and very low tidal volume ventilation. No association between mortality and other parameters of the mechanical ventilator, such as the inspired fraction of oxygen or end-expiratory pressure, was found. Systematic Review Registration https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42023450744, PROSPERO 2023 (CRD42023450744).
Collapse
Affiliation(s)
- Jaime Fernandez-Sarmiento
- Department of Critical Care Medicine and Pediatrics, Universidad de La Sabana, Fundación Cardioinfantil-Instituto de Cardiología, Bogotá, Colombia
| | - Maria Camila Perez
- Department of Critical Care Medicine and Pediatrics, Universidad de La Sabana, Fundación Cardioinfantil-Instituto de Cardiología, Bogotá, Colombia
| | - Juan David Bustos
- Department of Critical Care Medicine and Pediatrics, Universidad de La Sabana, Fundación Cardioinfantil-Instituto de Cardiología, Bogotá, Colombia
| | - Lorena Acevedo
- Department of Critical Care Medicine and Pediatrics, Universidad de La Sabana, Fundación Cardioinfantil-Instituto de Cardiología, Bogotá, Colombia
| | - Mauricio Sarta-Mantilla
- Department of Critical Care Medicine and Pediatrics, Universidad de La Sabana, Fundación Cardioinfantil-Instituto de Cardiología, Bogotá, Colombia
| | - Jennifer Guijarro
- Department of Critical Care Medicine and Pediatrics, Universidad de La Sabana, Fundación Cardioinfantil-Instituto de Cardiología, Bogotá, Colombia
| | - Carlos Santacruz
- Department of Anesthesia and Cardiovascular Surgery, Fundación Cardioinfantil-Instituto de Cardiología, Bogotá, Colombia
| | - Daniel Felipe Pardo
- Department of Anesthesia and Cardiovascular Surgery, Fundación Cardioinfantil-Instituto de Cardiología, Bogotá, Colombia
| | - Daniel Castro
- Department of Critical Care Medicine and Pediatrics, Universidad de La Sabana, Fundación Cardioinfantil-Instituto de Cardiología, Bogotá, Colombia
| | - Yinna Villa Rosero
- Department of Critical Care Medicine and Pediatrics, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Hernando Mulett
- Department of Critical Care Medicine and Pediatrics, Universidad de La Sabana, Fundación Cardioinfantil-Instituto de Cardiología, Bogotá, Colombia
| |
Collapse
|
11
|
Cavaliere F, Biancofiore G, Bignami E, DE Robertis E, Giannini A, Grasso S, McCREDIE VA, Scolletta S, Taccone FS, Terragni P. A year in review in Minerva Anestesiologica 2023: critical care. Minerva Anestesiol 2024; 90:110-118. [PMID: 38415512 DOI: 10.23736/s0375-9393.24.18017-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Affiliation(s)
- Franco Cavaliere
- IRCCS A. Gemelli University Polyclinic Foundation, Sacred Heart Catholic University, Rome, Italy -
| | - Gianni Biancofiore
- Department of Transplant Anesthesia and Critical Care, University School of Medicine, Pisa, Italy
| | - Elena Bignami
- Division of Anesthesiology, Critical Care and Pain Medicine, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Edoardo DE Robertis
- Section of Anesthesia, Analgesia and Intensive Care, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Alberto Giannini
- Unit of Pediatric Anesthesia and Intensive Care, Children's Hospital - ASST Spedali Civili di Brescia, Brescia, Italy
| | - Salvatore Grasso
- Section of Anesthesiology and Intensive Care, Department of Emergency and Organ Transplantation, Polyclinic Hospital, Aldo Moro University, Bari, Italy
| | - Victoria A McCREDIE
- Interdepartmental Division of Critical Care, University of Toronto, Toronto, ON, Canada
| | - Sabino Scolletta
- Department of Emergency-Urgency and Organ Transplantation, Anesthesia and Intensive Care, University Hospital of Siena, Siena, Italy
| | - Fabio S Taccone
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Pierpaolo Terragni
- Division of Anesthesia and General Intensive Care, Department of Medical, Surgical and Experimental Sciences, University Hospital of Sassari, University of Sassari, Sassari, Italy
| |
Collapse
|
12
|
Dalkilinc Hokenek U, Arslan G, Ozcan T, Sayin Kart J, Dogu Geyik F, Eryildirim B, Tolga Saracoglu K. Comparison of hemodynamic and respiratory outcomes between two surgical positions for percutaneous nephrolithotomy: a prospective, randomized clinical trial. Actas Urol Esp 2023; 47:509-516. [PMID: 37084806 DOI: 10.1016/j.acuroe.2023.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 03/02/2023] [Accepted: 03/06/2023] [Indexed: 04/23/2023]
Abstract
INTRODUCTION Percutaneous nephrolithotomy (PCNL) has become the gold standard for the treatment of large and complex kidney stones. OBJECTIVES The objective of this study is to evaluate the efficacy and safety of percutaneous nephrolithotomy (PCNL) for patients in the flank position versus prone position. METHODS In our prospective randomized trial, 60 patients who would undergo fluoroscopy and ultrasound-guided PCNL in prone or flank position were divided into two groups. Demographic features, hemodynamics, respiratory and metabolic parameters, postoperative pain scores, analgesic requirements, amount of fluid given, blood loss and transfusion, duration of operation and hospital stay, and perioperative complications were compared. RESULTS PaO2, SaO2, SpO2 and Oxygen Reserve İndex (ORi) at the 60th minute of the operation and in the postoperative period, Pleth Variability index (PVi) at the 60th minute of the operation, driving pressure in all time periods and the amount of bleeding during the operation were determined to be statistically significantly higher in the prone group. There was no difference between the groups in terms of other parameters. Was found to be statistically significantly higher in the prone group. CONCLUSIONS Due to our results the flank position can be preferred in PCNL operations, considering that the position should be chosen according to the surgeon's experience, the patient's anatomical and physiological data, positive effects on respiratory parameters and bleeding, and the operation time can be shortened as the experience increases.
Collapse
Affiliation(s)
- U Dalkilinc Hokenek
- Servicio de Anestesiología y Reanimación, Universidad de Ciencias de la Salud, Hospital Kartal Dr. Lutfi Kirdar, Estambul, Turkey.
| | - G Arslan
- Servicio de Anestesiología y Reanimación, Universidad de Ciencias de la Salud, Hospital Kartal Dr. Lutfi Kirdar, Estambul, Turkey
| | - T Ozcan
- Servicio de Urología, Universidad de Ciencias de la Salud, Hospital Kartal Dr. Lutfi Kirdar, Estambul, Turkey
| | - J Sayin Kart
- Servicio de Anestesiología y Reanimación, Universidad de Ciencias de la Salud, Hospital Kartal Dr. Lutfi Kirdar, Estambul, Turkey
| | - F Dogu Geyik
- Servicio de Anestesiología y Reanimación, Universidad de Ciencias de la Salud, Hospital Kartal Dr. Lutfi Kirdar, Estambul, Turkey
| | - B Eryildirim
- Servicio de Urología, Universidad de Ciencias de la Salud, Hospital Kartal Dr. Lutfi Kirdar, Estambul, Turkey
| | - K Tolga Saracoglu
- Servicio de Anestesiología y Reanimación, Universidad de Ciencias de la Salud, Hospital Kartal Dr. Lutfi Kirdar, Estambul, Turkey
| |
Collapse
|
13
|
Orthmann T, Ltaief Z, Bonnemain J, Kirsch M, Piquilloud L, Liaudet L. Retrospective analysis of factors associated with outcome in veno-venous extra-corporeal membrane oxygenation. BMC Pulm Med 2023; 23:301. [PMID: 37587413 PMCID: PMC10429070 DOI: 10.1186/s12890-023-02591-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 07/31/2023] [Indexed: 08/18/2023] Open
Abstract
BACKGROUND The outcome of Veno-Venous Extracorporeal Membrane Oxygenation (VV-ECMO) in acute respiratory failure may be influenced by patient-related factors, center expertise and modalities of mechanical ventilation (MV) during ECMO. We determined, in a medium-size ECMO center in Switzerland, possible factors associated with mortality during VV-ECMO for acute respiratory failure of various etiologies. METHODS We retrospectively analyzed all patients treated with VV-ECMO in our University Hospital from 2012 to 2019 (pre-COVID era). Demographic variables, severity scores, MV duration before ECMO, pre and on-ECMO arterial blood gases and respiratory variables were collected. The primary outcome was ICU mortality. Data were compared between survivors and non-survivors, and factors associated with mortality were assessed in univariate and multivariate analyses. RESULTS Fifty-one patients (33 ARDS, 18 non-ARDS) were included. ICU survival was 49% (ARDS, 39%; non-ARDS 67%). In univariate analyses, a higher driving pressure (DP) at 24h and 48h on ECMO (whole population), longer MV duration before ECMO and higher DP at 24h on ECMO (ARDS patients), were associated with mortality. In multivariate analyses, ECMO indication, higher DP at 24h on ECMO and, in ARDS, longer MV duration before ECMO, were independently associated with mortality. CONCLUSIONS DP on ECMO and longer MV duration before ECMO (in ARDS) are major, and potentially modifiable, factors influencing outcome during VV-ECMO.
Collapse
Affiliation(s)
- Thomas Orthmann
- The Department of Adult Intensive Care Medicine, University Hospital Medical Center, Lausanne, 1011, Switzerland
- The Faculty of Biology and Medicine, University of Lausanne, Lausanne, 1011, Switzerland
| | - Zied Ltaief
- The Department of Adult Intensive Care Medicine, University Hospital Medical Center, Lausanne, 1011, Switzerland
| | - Jean Bonnemain
- The Department of Adult Intensive Care Medicine, University Hospital Medical Center, Lausanne, 1011, Switzerland
| | - Matthias Kirsch
- The Faculty of Biology and Medicine, University of Lausanne, Lausanne, 1011, Switzerland
- The Department of Cardiac Surgery, University Hospital Medical Center, Lausanne, 1011, Switzerland
| | - Lise Piquilloud
- The Department of Adult Intensive Care Medicine, University Hospital Medical Center, Lausanne, 1011, Switzerland
- The Faculty of Biology and Medicine, University of Lausanne, Lausanne, 1011, Switzerland
| | - Lucas Liaudet
- The Department of Adult Intensive Care Medicine, University Hospital Medical Center, Lausanne, 1011, Switzerland.
- The Faculty of Biology and Medicine, University of Lausanne, Lausanne, 1011, Switzerland.
| |
Collapse
|
14
|
Galante O, Hasidim A, Almog Y, Cohen A, Makhul M, Soroksky A, Zikri-Ditch M, Fink D, Ilgiyaev E. Extracorporal Membrane Oxygenation in Nonintubated Patients (Awake ECMO) With COVID-19 Adult Respiratory Distress Syndrome: The Israeli Experience. ASAIO J 2023; 69:e363-e367. [PMID: 37505201 PMCID: PMC10627399 DOI: 10.1097/mat.0000000000001996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023] Open
Abstract
In this retrospective multicenter observational study, we describe the Israeli experience with veno-venous extracorporeal membrane oxygenation (VV ECMO) for the treatment of COVID-19-induced severe adult respiratory distress syndrome (ARDS), in which ECMO cannulation was done while the patients were awake and spontaneously breathing without endotracheal tube, namely "awake ECMO." We enrolled all adult patients with severe ARDS due to COVID-19, treated with VV ECMO between March 1, 2020, and November 30, 2021, in which cannulation was done while the patient was awake and spontaneously breathing. During the study period, 365 COVID-19 ARDS patients were treated with VV ECMO. Of these, 25 (6.8%) were treated as awake ECMO. The patient's mean age was 52 years, and 80% were male. Nine of the 25 patients (36%) remained awake throughout their intensive care unit stay and were not sedated and mechanically ventilated at all. Sixteen (64%) were eventually intubated while being on ECMO. Six months survival was 76%. Median mechanical ventilation-free days on ECMO was 8 (interquartile range 5-12) days. This hypothesis-generating study suggests that treating COVID-19 ARDS patients with VV ECMO without sedation and mechanical ventilation is feasible, yet, additional research will be required in order to determine if this modality offers a survival benefit and to identify who are the patients most likely to benefit from it.
Collapse
Affiliation(s)
- Ori Galante
- From the Medical Intensive Care Unit, Soroka University Medical Center, Faculty of Health Sciences, Ben Gurion University of the Negev, Beer-Sheva, Israel
| | - Ariel Hasidim
- From the Medical Intensive Care Unit, Soroka University Medical Center, Faculty of Health Sciences, Ben Gurion University of the Negev, Beer-Sheva, Israel
| | - Yaniv Almog
- From the Medical Intensive Care Unit, Soroka University Medical Center, Faculty of Health Sciences, Ben Gurion University of the Negev, Beer-Sheva, Israel
| | - Amir Cohen
- General Intensive Care Unit, Sheba Medical Center, Ramat-Gan, Israel
| | - Maged Makhul
- Cardiothoracic Surgery, Rambam Medical Center, Haifa, Israel
| | - Arie Soroksky
- Intensive Care Unit, Wolfson Medical Center, Holon
- Sackler School of Medicine University of Tel Aviv, Israel
| | - Meital Zikri-Ditch
- Intensive Care Unit, Kaplan Medical Center, Rehovot, Israel
- Hebrew University, Jerusalem, Israel
| | - Daniel Fink
- Shaare Zedek Medical Center, Hebrew University, Jerusalem, Israel
| | - Eduard Ilgiyaev
- Intensive Care Unit, Shamir Medical Center, Sackler School of Medicine University of Tel Aviv, Israel
| |
Collapse
|
15
|
Wheeler CR, Bullock KJ. Extracorporeal Membrane Oxygenation. Respir Care 2023; 68:1158-1170. [PMID: 37402582 PMCID: PMC10353178 DOI: 10.4187/respcare.10929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2023]
Abstract
The utilization of extracorporeal membrane oxygenation (ECMO) for cardiopulmonary support continues to increase globally, with > 190,000 ECMO cases reported to the international Extracorporeal Life Support Organization Registry. The present review aims to synthesize important contributions to the literature surrounding the management of mechanical ventilation, prone positioning, anticoagulation, bleeding complications, and neurologic outcomes for infants, children, and adults undergoing ECMO in 2022. Additionally, issues related to cardiac ECMO, Harlequin syndrome, and anticoagulation during ECMO will be discussed.
Collapse
Affiliation(s)
- Craig R Wheeler
- Department of Respiratory Care and Department of Extracorporeal Membrane Oxygenation, Boston Children's Hospital, Boston, Massachusetts.
| | - Kevin J Bullock
- Department of Respiratory Care and Department of Extracorporeal Membrane Oxygenation, Boston Children's Hospital, Boston, Massachusetts
| |
Collapse
|
16
|
Roden-Foreman JS, Foreman ML, Monday K, Lingle K, Blough B, Safa MM, Schwartz G. Body mass index is not associated with time on veno-venous extracorporeal membrane oxygenation or in-hospital mortality. Perfusion 2023:2676591231193269. [PMID: 37501258 DOI: 10.1177/02676591231193269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Morbid obesity, as characterized by BMI, is often utilized as an exclusion criterion for VV-ECMO because of presumed poor prognosis and technically complex cannulation. However, the "obesity paradox" suggests obesity may be protective during critical illness, and BMI does not capture variations in body type, adiposity, or fluid balance. This study examines relationships between BMI and patient outcomes. Adult VV-ECMO patients with BMI ≥ 35 kg/m2 admitted January 2012 to June 2021 were identified from an institutional registry. BMI and outcomes were analyzed with Mann-Whitney U tests and Pearson correlations with Bayesian post-hoc analyses. 116 of 960 ECMO patients met inclusion criteria. Median (Q1, Q3) BMI was 42.3 (37.3, 50.8) and min, max of 35.0, 87.8 with 9.0 (5.0, 15.5) ECMO days. BMI was not significantly correlated with ECMO days (r = -0.102; p = .279). Bayesian analyses showed moderate evidence against BMI correlating with ECMO days. In-hospital mortality (27%) was significantly associated with ECMO days (p = .014) but not BMI (p = .485). In this cohort of high-BMI patients, BMI was not associated with survival or time on ECMO. BMI itself should not be used as an exclusion criterion for VV-ECMO.
Collapse
Affiliation(s)
- Jordin S Roden-Foreman
- Baylor University Medical Center at Dallas, Dallas, TX, USA
- University of North Texas Health Science Center, Fort Worth, TX, USA
| | | | - Kara Monday
- Baylor University Medical Center at Dallas, Dallas, TX, USA
| | - Kaitlyn Lingle
- Baylor University Medical Center at Dallas, Dallas, TX, USA
| | - Britton Blough
- Baylor University Medical Center at Dallas, Dallas, TX, USA
| | - Mohamad M Safa
- Baylor University Medical Center at Dallas, Dallas, TX, USA
| | - Gary Schwartz
- Baylor University Medical Center at Dallas, Dallas, TX, USA
| |
Collapse
|
17
|
Grotberg JC, Reynolds D, Kraft BD. Management of severe acute respiratory distress syndrome: a primer. Crit Care 2023; 27:289. [PMID: 37464381 DOI: 10.1186/s13054-023-04572-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 07/10/2023] [Indexed: 07/20/2023] Open
Abstract
This narrative review explores the physiology and evidence-based management of patients with severe acute respiratory distress syndrome (ARDS) and refractory hypoxemia, with a focus on mechanical ventilation, adjunctive therapies, and veno-venous extracorporeal membrane oxygenation (V-V ECMO). Severe ARDS cases increased dramatically worldwide during the Covid-19 pandemic and carry a high mortality. The mainstay of treatment to improve survival and ventilator-free days is proning, conservative fluid management, and lung protective ventilation. Ventilator settings should be individualized when possible to improve patient-ventilator synchrony and reduce ventilator-induced lung injury (VILI). Positive end-expiratory pressure can be individualized by titrating to best respiratory system compliance, or by using advanced methods, such as electrical impedance tomography or esophageal manometry. Adjustments to mitigate high driving pressure and mechanical power, two possible drivers of VILI, may be further beneficial. In patients with refractory hypoxemia, salvage modes of ventilation such as high frequency oscillatory ventilation and airway pressure release ventilation are additional options that may be appropriate in select patients. Adjunctive therapies also may be applied judiciously, such as recruitment maneuvers, inhaled pulmonary vasodilators, neuromuscular blockers, or glucocorticoids, and may improve oxygenation, but do not clearly reduce mortality. In select, refractory cases, the addition of V-V ECMO improves gas exchange and modestly improves survival by allowing for lung rest. In addition to VILI, patients with severe ARDS are at risk for complications including acute cor pulmonale, physical debility, and neurocognitive deficits. Even among the most severe cases, ARDS is a heterogeneous disease, and future studies are needed to identify ARDS subgroups to individualize therapies and advance care.
Collapse
Affiliation(s)
- John C Grotberg
- Division of Pulmonary and Critical Care Medicine, Washington University School of Medicine, 660 S. Euclid Ave, St. Louis, MO, 63110, USA.
| | - Daniel Reynolds
- Division of Pulmonary and Critical Care Medicine, Washington University School of Medicine, 660 S. Euclid Ave, St. Louis, MO, 63110, USA
| | - Bryan D Kraft
- Division of Pulmonary and Critical Care Medicine, Washington University School of Medicine, 660 S. Euclid Ave, St. Louis, MO, 63110, USA
| |
Collapse
|
18
|
Battaglini D, Iavarone IG, Robba C, Ball L, Silva PL, Rocco PRM. Mechanical ventilation in patients with acute respiratory distress syndrome: current status and future perspectives. Expert Rev Med Devices 2023; 20:905-917. [PMID: 37668146 DOI: 10.1080/17434440.2023.2255521] [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: 07/03/2023] [Revised: 08/14/2023] [Accepted: 09/01/2023] [Indexed: 09/06/2023]
Abstract
INTRODUCTION Although there has been extensive research on mechanical ventilation for acute respiratory distress syndrome (ARDS), treatment remains mainly supportive. Recent studies and new ventilatory modes have been proposed to manage patients with ARDS; however, the clinical impact of these strategies remains uncertain and not clearly supported by guidelines. The aim of this narrative review is to provide an overview and update on ventilatory management for patients with ARDS. AREAS COVERED This article reviews the literature regarding mechanical ventilation in ARDS. A comprehensive overview of the principal settings for the ventilator parameters involved is provided as well as a report on the differences between controlled and assisted ventilation. Additionally, new modes of assisted ventilation are presented and discussed. The evidence concerning rescue strategies, including recruitment maneuvers and extracorporeal membrane oxygenation support, is analyzed. PubMed, EBSCO, and the Cochrane Library were searched up until June 2023, for relevant literature. EXPERT OPINION Available evidence for mechanical ventilation in cases of ARDS suggests the use of a personalized mechanical ventilation strategy. Although promising, new modes of assisted mechanical ventilation are still under investigation and guidelines do not recommend rescue strategies as the standard of care. Further research on this topic is required.
Collapse
Affiliation(s)
- Denise Battaglini
- Anesthesia and Intensive Care, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Ida Giorgia Iavarone
- Anesthesia and Intensive Care, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy
| | - Chiara Robba
- Anesthesia and Intensive Care, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy
| | - Lorenzo Ball
- Anesthesia and Intensive Care, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy
| | - Pedro Leme Silva
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Patricia R M Rocco
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| |
Collapse
|
19
|
Kuzmin B, Movsisyan A, Praetsch F, Schilling T, Lux A, Fadel M, Azizzadeh F, Crackau J, Keyser O, Awad G, Hachenberg T, Wippermann J, Scherner M. Outcomes of patients with coronavirus disease versus other lung infections requiring venovenous extracorporeal membrane oxygenation. Heliyon 2023; 9:e17441. [PMID: 37366524 PMCID: PMC10276501 DOI: 10.1016/j.heliyon.2023.e17441] [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: 03/15/2023] [Revised: 06/07/2023] [Accepted: 06/16/2023] [Indexed: 06/28/2023] Open
Abstract
Background Patients with Coronavirus Disease (COVID-19) often develop severe acute respiratory distress syndrome (ARDS) requiring prolonged mechanical ventilation (MV), and venovenous extracorporeal membrane oxygenation (V-V ECMO).Mortality in COVID-19 patients on V-V ECMO was exceptionally high; therefore, whether survival can be ameliorated should be investigated. Methods We collected data from 85 patients with severe ARDS who required ECMO support at the University Hospital Magdeburg from 2014 to 2021. The patients were divided into the COVID-19 group (52 patients) and the non-COVID-19 group (33 patients). Demographic and pre-, intra-, and post-ECMO data were retrospectively recorded. The parameters of mechanical ventilation, laboratory data before using ECMO, and during ECMO were compared. Results There was a significant difference between the two groups regarding survival: 38.5% of COVID-19 patients and 63.6% of non-COVID-19 patients survived 60 days (p = 0.024). COVID-19 patients required V-V ECMO after 6.5 days of MV, while non-COVID-19 patients required V-V ECMO after 2.0 days of MV (p = 0.048). The COVID-19 group had a greater proportion of patients with ischemic heart disease (21.2% vs 3%, p = 0.019). The rates of most complications were comparable in both groups, whereas the COVID-19 group showed a significantly higher rate of cerebral bleeding (23.1 vs 6.1%, p = 0.039) and lung bacterial superinfection (53.8% vs 9.1%, p = <0.001). Conclusion The higher 60-days mortality among patients with COVID-19 with severe ARDS was attributable to superinfection, a higher risk of intracerebral bleeding, and the pre-existing ischemic heart disease.
Collapse
Affiliation(s)
- Boris Kuzmin
- Department of Cardiothoracic Surgery, University Hospital, Magdeburg, Germany
| | - Arevik Movsisyan
- Department of Cardiothoracic Surgery, University Hospital, Magdeburg, Germany
| | - Florian Praetsch
- Department of Anesthesiology and Intensive Care Medicine, University Hospital, Magdeburg, Germany
| | - Thomas Schilling
- Department of Anesthesiology and Intensive Care Medicine, University Hospital, Magdeburg, Germany
| | - Anke Lux
- Institute of Biometry and Medical Informatics, University Hospital, Magdeburg, Germany
| | - Mohammad Fadel
- Department of Cardiothoracic Surgery, University Hospital, Magdeburg, Germany
| | - Faranak Azizzadeh
- Department of Cardiothoracic Surgery, University Hospital, Magdeburg, Germany
| | - Julia Crackau
- Department of Cardiothoracic Surgery, University Hospital, Magdeburg, Germany
| | - Olaf Keyser
- Department of Cardiothoracic Surgery, University Hospital, Magdeburg, Germany
| | - George Awad
- Department of Cardiothoracic Surgery, University Hospital, Magdeburg, Germany
| | - Thomas Hachenberg
- Department of Anesthesiology and Intensive Care Medicine, University Hospital, Magdeburg, Germany
| | - Jens Wippermann
- Department of Cardiothoracic Surgery, University Hospital, Magdeburg, Germany
| | - Maximilian Scherner
- Department of Cardiothoracic Surgery, University Hospital, Magdeburg, Germany
| |
Collapse
|
20
|
Rehder KJ, Alibrahim OS. Mechanical Ventilation during ECMO: Best Practices. Respir Care 2023; 68:838-845. [PMID: 37225656 PMCID: PMC10208991 DOI: 10.4187/respcare.10908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Adults and children who require extracorporeal membrane oxygenation for respiratory failure remain at risk for ongoing lung injury if ventilator management is not optimized. This review serves as a guide to assist the bedside clinician in ventilator titration for patients on extracorporeal membrane oxygenation, with a focus on lung-protective strategies. Existing data and guidelines for extracorporeal membrane oxygenation ventilator management are reviewed, including non-conventional ventilation modes and adjunct therapies.
Collapse
Affiliation(s)
- Kyle J Rehder
- Division of Pediatric Critical Care, Duke Children's Hospital, Durham, North Carolina.
| | - Omar S Alibrahim
- Division of Pediatric Critical Care, Duke Children's Hospital, Durham, North Carolina
| |
Collapse
|
21
|
Lozano-Espinosa M, Antolín-Amérigo D, Riera Del Brío J, Gordo Vidal F, Quirce S, Álvarez Rodríguez J. Extracorporeal membrane oxygenation (ECMO) and beyond in near fatal asthma: A comprehensive review. Respir Med 2023:107246. [PMID: 37245648 DOI: 10.1016/j.rmed.2023.107246] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 04/14/2023] [Accepted: 04/14/2023] [Indexed: 05/30/2023]
Abstract
The treatment of choice in severe asthma exacerbations with respiratory failure includes ventilatory support, both invasive and/or non-invasive, along with different kinds of asthma medication. Of note, the rate of mortality of patients with asthma has decreased substantially in recent years mainly due to significant advances in pharmacological treatment and other management strategies. However, the risk of death in patients with severe asthma who require invasive mechanical ventilation has been estimated between 6.5% and 10.3%. When conventional measures fail, rescue strategies, such as extracorporeal membrane oxygenation (ECMO) or extracorporeal CO2 removal (ECCO2R) may need to be implemented. While ECMO does not constitute a definitive treatment per se, it can minimize further ventilator associated lung injury (VALI) and can enable diagnostic-therapeutic maneuvers that cannot be performed without ECMO such as bronchoscopy and transfer for diagnostic imaging. Asthma is one of the diseases that is associated with excellent outcomes for patients with refractory respiratory failure requiring ECMO support, as shown by the Extracorporeal Life Support Organization (ELSO) registry. Moreover, in such situations, the use of ECCO2R for rescue has been described and utilized in both children and adults and is more widely spread in different hospitals than ECMO. In this article, we aim to review the evidence for the usefulness of extracorporeal respiratory support measures in the management of severe asthma exacerbations that lead to respiratory failure.
Collapse
Affiliation(s)
- María Lozano-Espinosa
- Servicio de Medicina Intensiva, Hospital Universitario de Fuenlabrada, Fuenlabrada, Madrid, Spain
| | - Darío Antolín-Amérigo
- Servicio de Alergia, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS) Madrid, Spain.
| | - Jordi Riera Del Brío
- Servicio de Medicina Intensiva, Hospital Universitari Vall d'Hebron, SODIR, Vall d'Hebron Institut de Recerca, Barcelona, Spain
| | - Federico Gordo Vidal
- Servicio de Medicina Intensiva, Hospital Universitario Henares, Coslada, Madrid, Spain; Grupo de Investigación en Patología Crítica. Universidad Francisco de Vitoria. Pozuelo de Alarcón, Madrid, Spain
| | - Santiago Quirce
- Department of Allergy, La Paz University Hospital, IdiPAZ, Madrid, Spain
| | | |
Collapse
|
22
|
Masi P, Bagate F, Tuffet S, Piscitelli M, Folliguet T, Razazi K, De Prost N, Carteaux G, Mekontso Dessap A. Dual titration of minute ventilation and sweep gas flow to control carbon dioxide variations in patients on venovenous extracorporeal membrane oxygenation. Ann Intensive Care 2023; 13:45. [PMID: 37225933 DOI: 10.1186/s13613-023-01138-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 05/05/2023] [Indexed: 05/26/2023] Open
Abstract
BACKGROUND The implantation of venovenous extracorporeal membrane oxygenation (VV-ECMO) support to manage severe acute respiratory distress syndrome generates large variations in carbon dioxide partial pressure (PaCO2) that are associated with intracranial bleeding. We assessed the feasibility and efficacy of a pragmatic protocol for progressive dual titration of sweep gas flow and minute ventilation after VV-ECMO implantation in order to limit significant PaCO2 variations. PATIENTS AND METHODS A protocol for dual titration of sweep gas flow and minute ventilation following VV-ECMO implantation was implemented in our unit in September 2020. In this single-centre retrospective before-after study, we included patients who required VV-ECMO from March, 2020 to May, 2021, which corresponds to two time periods: from March to August, 2020 (control group) and from September, 2020 to May, 2021 (protocol group). The primary endpoint was the mean absolute change in PaCO2 in consecutive arterial blood gases samples drawn over the first 12 h following VV-ECMO implantation. Secondary endpoints included large (> 25 mmHg) initial variations in PaCO2, intracranial bleedings and mortality in both groups. RESULTS Fifty-one patients required VV-ECMO in our unit during the study period, including 24 in the control group and 27 in the protocol group. The protocol was proved feasible. The 12-h mean absolute change in PaCO2 was significantly lower in patients of the protocol group as compared with their counterparts (7 mmHg [6-12] vs. 12 mmHg [6-24], p = 0.007). Patients of the protocol group experienced less large initial variations in PaCO2 immediately after ECMO implantation (7% vs. 29%, p = 0.04) and less intracranial bleeding (4% vs. 25%, p = 0.04). Mortality was similar in both groups (35% vs. 46%, p = 0.42). CONCLUSION Implementation of our protocol for dual titration of minute ventilation and sweep gas flow was feasible and associated with less initial PaCO2 variation than usual care. It was also associated with less intracranial bleeding.
Collapse
Affiliation(s)
- Paul Masi
- Service de Médecine Intensive Réanimation, AP-HP, Hôpitaux Universitaires Henri-Mondor, 94010, Créteil, France.
- CARMAS, Univ Paris Est Créteil, 94010, Créteil, France.
- IMRB, Univ Paris Est Créteil, INSERM, 94010, Créteil, France.
| | - François Bagate
- Service de Médecine Intensive Réanimation, AP-HP, Hôpitaux Universitaires Henri-Mondor, 94010, Créteil, France
- CARMAS, Univ Paris Est Créteil, 94010, Créteil, France
- IMRB, Univ Paris Est Créteil, INSERM, 94010, Créteil, France
| | - Samuel Tuffet
- Service de Médecine Intensive Réanimation, AP-HP, Hôpitaux Universitaires Henri-Mondor, 94010, Créteil, France
- CARMAS, Univ Paris Est Créteil, 94010, Créteil, France
- IMRB, Univ Paris Est Créteil, INSERM, 94010, Créteil, France
| | - Mariantonietta Piscitelli
- Service de chirurgie cardiaque, DMU CARE, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires Henri Mondor, Université Paris Est Créteil, Faculté de Santé, F-94010, Créteil, France
| | - Thierry Folliguet
- Service de chirurgie cardiaque, DMU CARE, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires Henri Mondor, Université Paris Est Créteil, Faculté de Santé, F-94010, Créteil, France
| | - Keyvan Razazi
- Service de Médecine Intensive Réanimation, AP-HP, Hôpitaux Universitaires Henri-Mondor, 94010, Créteil, France
- CARMAS, Univ Paris Est Créteil, 94010, Créteil, France
- IMRB, Univ Paris Est Créteil, INSERM, 94010, Créteil, France
| | - Nicolas De Prost
- Service de Médecine Intensive Réanimation, AP-HP, Hôpitaux Universitaires Henri-Mondor, 94010, Créteil, France
- CARMAS, Univ Paris Est Créteil, 94010, Créteil, France
- IMRB, Univ Paris Est Créteil, INSERM, 94010, Créteil, France
| | - Guillaume Carteaux
- Service de Médecine Intensive Réanimation, AP-HP, Hôpitaux Universitaires Henri-Mondor, 94010, Créteil, France
- CARMAS, Univ Paris Est Créteil, 94010, Créteil, France
- IMRB, Univ Paris Est Créteil, INSERM, 94010, Créteil, France
| | - Armand Mekontso Dessap
- Service de Médecine Intensive Réanimation, AP-HP, Hôpitaux Universitaires Henri-Mondor, 94010, Créteil, France
- CARMAS, Univ Paris Est Créteil, 94010, Créteil, France
- IMRB, Univ Paris Est Créteil, INSERM, 94010, Créteil, France
| |
Collapse
|
23
|
Miya TR, Furlong-Dillard JM, Sizemore JM, Meert KL, Dalton HJ, Reeder RW, Bailly DK. Association Between Mortality and Ventilator Parameters in Children With Respiratory Failure on ECMO. Respir Care 2023; 68:592-601. [PMID: 36787913 PMCID: PMC10171354 DOI: 10.4187/respcare.10107] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
BACKGROUND In refractory respiratory failure, extracorporeal membrane oxygenation (ECMO) is a rescue therapy to prevent ventilator-induced lung injury. Optimal ventilator parameters during ECMO remain unknown. Our objective was to describe the association between mortality and ventilator parameters during ECMO for neonatal and pediatric respiratory failure. METHODS We performed a secondary analysis of the Bleeding and Thrombosis on ECMO dataset. Ventilator parameters included breathing frequency, tidal volume, peak inspiratory pressure, PEEP, dynamic driving pressure, pressure support, mean airway pressure, and FIO2 . Parameters were evaluated before cannulation, on the calendar day of ECMO initiation (ECMO day 1), and the day before ECMO separation. RESULTS Of 237 included subjects analyzed, 64% were neonates, of whom 36% had a congenital diaphragmatic hernia. Of all the subjects, 67% were supported on venoarterial ECMO. Overall in-hospital mortality was 35% (n = 83). The median (interquartile range) PEEP on ECMO day 1 was 8 (5.0-10.0) cm H2O for neonates and 10 (8.0-10.0) cm H2O for pediatric subjects. By multivariable analysis, higher PEEP on ECMO day 1 in neonates was associated with lower odds of in-hospital mortality (odds ratio 0.77, 95% CI 0.62-0.92; P = .01), with a further amplified effect in neonates with congenital diaphragmatic hernia (odds ratio 0.59, 95% CI 0.41-0.86; P = .005). No ventilator type or parameter was associated with mortality in pediatric subjects. CONCLUSIONS Avoiding low PEEP on ECMO day 1 for neonates on ECMO may be beneficial, particularly those with a congenital diaphragmatic hernia. No additional ventilator parameters were associated with mortality in either neonatal or pediatric subjects. PEEP is a modifiable parameter that may improve neonatal survival during ECMO and requires further investigation.
Collapse
Affiliation(s)
- Tadashi R Miya
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, University of Utah, Salt Lake City, Utah.
| | - Jamie M Furlong-Dillard
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, University of Louisville, Norton Children's Hospital, Louisville, Kentucky
| | - Johnna M Sizemore
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, University of Louisville, Norton Children's Hospital, Louisville, Kentucky
| | - Kathleen L Meert
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, Children's Hospital of Michigan, Detroit, Michigan
| | - Heidi J Dalton
- Department of Pediatrics, INOVA Fairfax Medical Center, Falls Church, Virginia
| | - Ron W Reeder
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, University of Utah, Salt Lake City, Utah
| | - David K Bailly
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, University of Utah, Salt Lake City, Utah
| |
Collapse
|
24
|
Assouline B, Combes A, Schmidt M. Setting and Monitoring of Mechanical Ventilation During Venovenous ECMO. Crit Care 2023; 27:95. [PMID: 36941722 PMCID: PMC10027594 DOI: 10.1186/s13054-023-04372-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023] Open
Abstract
This article is one of ten reviews selected from the Annual Update in Intensive Care and Emergency Medicine 2023. Other selected articles can be found online at https://www.biomedcentral.com/collections/annualupdate2023 . Further information about the Annual Update in Intensive Care and Emergency Medicine is available from https://link.springer.com/bookseries/8901 .
Collapse
Affiliation(s)
- Benjamin Assouline
- Médecine Intensive Réanimation, Institut de Cardiologie, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Alain Combes
- Médecine Intensive Réanimation, Institut de Cardiologie, Assistance Publique-Hôpitaux de Paris, Paris, France.
- Sorbonne Université, GRC 30, RESPIRE, UMRS 1166, ICAN Institute of Cardiometabolism and Nutrition, Paris, France.
| | - Matthieu Schmidt
- Sorbonne Université, GRC 30, RESPIRE, UMRS 1166, ICAN Institute of Cardiometabolism and Nutrition, Paris, France
| |
Collapse
|
25
|
Dalkilinc Hokenek U, Arslan G, Ozcan T, Sayin Kart J, Dogu Geyik F, Eryildirim B, Tolga Saracoglu K. Comparación de los resultados hemodinámicos y respiratorios entre dos posiciones quirúrgicas para la nefrolitotomía percutánea: ensayo clínico prospectivo y aleatorizado. Actas Urol Esp 2023. [DOI: 10.1016/j.acuro.2023.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2023]
|
26
|
Odish M, Pollema T, Meier A, Hepokoski M, Yi C, Spragg R, Patel HH, Alexander LEC, Sun XS, Jain S, Simonson TS, Malhotra A, Owens RL. Very Low Driving-Pressure Ventilation in Patients With COVID-19 Acute Respiratory Distress Syndrome on Extracorporeal Membrane Oxygenation: A Physiologic Study. J Cardiothorac Vasc Anesth 2023; 37:423-431. [PMID: 36567221 PMCID: PMC9701579 DOI: 10.1053/j.jvca.2022.11.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 11/01/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To determine in patients with acute respiratory distress syndrome (ARDS) on venovenous extracorporeal membrane oxygenation (VV ECMO) whether reducing driving pressure (ΔP) would decrease plasma biomarkers of inflammation and lung injury (interleukin-6 [IL-6], IL-8, and the soluble receptor for advanced glycation end-products sRAGE). DESIGN A single-center prospective physiologic study. SETTING At a single university medical center. PARTICIPANTS Adult patients with severe COVID-19 ARDS on VV ECMO. INTERVENTIONS Participants on VV ECMO had the following biomarkers measured: (1) pre-ECMO with low-tidal-volume ventilation (LTVV), (2) post-ECMO with LTVV, (3) during low-driving-pressure ventilation (LDPV), (4) after 2 hours of very low driving-pressure ventilation (V-LDPV, main intervention ΔP = 1 cmH2O), and (5) 2 hours after returning to LDPV. MAIN MEASUREMENTS AND RESULTS Twenty-six participants were enrolled; 21 underwent V-LDPV. There was no significant change in IL-6, IL-8, and sRAGE from LDPV to V-LDPV and from V-LDPV to LDPV. Only participants (9 of 21) with nonspontaneous breaths had significant change (p < 0.001) in their tidal volumes (Vt) (mean ± SD), 1.9 ± 0.5, 0.1 ± 0.2, and 2.0 ± 0.7 mL/kg predicted body weight (PBW). Participants with spontaneous breathing, Vt were unchanged-4.5 ± 3.1, 4.7 ± 3.1, and 5.6 ± 2.9 mL/kg PBW (p = 0.481 and p = 0.065, respectively). There was no relationship found when accounting for Vt changes and biomarkers. CONCLUSIONS Biomarkers did not significantly change with decreased ΔPs or Vt changes during the first 24 hours post-ECMO. Despite deep sedation, reductions in Vt during V-LDPV were not reliably achieved due to spontaneous breaths. Thus, patients on VV ECMO for ARDS may have higher Vt (ie, transpulmonary pressure) than desired despite low ΔPs or Vt.
Collapse
Affiliation(s)
- Mazen Odish
- UC San Diego Department of Medicine, Division of Pulmonary, Critical Care, Sleep Medicine, and Physiology, La Jolla, CA.
| | - Travis Pollema
- UC San Diego Department of Surgery, Division of Cardiovascular and Thoracic Surgery, La Jolla, CA
| | - Angela Meier
- UC San Diego Department of Anesthesiology, Division of Critical Care, La Jolla, CA
| | - Mark Hepokoski
- UC San Diego Department of Medicine, Division of Pulmonary, Critical Care, Sleep Medicine, and Physiology, La Jolla, CA; VA San Diego Healthcare System, Pulmonary Critical Care Section, San Diego, CA
| | - Cassia Yi
- UC San Diego Health Department of Nursing, La Jolla, CA
| | - Roger Spragg
- UC San Diego Department of Medicine, Division of Pulmonary, Critical Care, Sleep Medicine, and Physiology, La Jolla, CA
| | - Hemal H Patel
- UC San Diego Department of Anesthesiology, Division of Critical Care, La Jolla, CA; VA San Diego Healthcare System, Pulmonary Critical Care Section, San Diego, CA
| | - Laura E Crotty Alexander
- UC San Diego Department of Medicine, Division of Pulmonary, Critical Care, Sleep Medicine, and Physiology, La Jolla, CA; VA San Diego Healthcare System, Pulmonary Critical Care Section, San Diego, CA
| | - Xiaoying Shelly Sun
- UC San Diego, Herbert Wertheim School of Public Health and Human Longevity Science, La Jolla, CA
| | - Sonia Jain
- UC San Diego, Herbert Wertheim School of Public Health and Human Longevity Science, La Jolla, CA
| | - Tatum S Simonson
- UC San Diego Department of Medicine, Division of Pulmonary, Critical Care, Sleep Medicine, and Physiology, La Jolla, CA
| | - Atul Malhotra
- UC San Diego Department of Medicine, Division of Pulmonary, Critical Care, Sleep Medicine, and Physiology, La Jolla, CA
| | - Robert L Owens
- UC San Diego Department of Medicine, Division of Pulmonary, Critical Care, Sleep Medicine, and Physiology, La Jolla, CA
| |
Collapse
|
27
|
Collins PD, Giosa L, Camarda V, Camporota L. Physiological adaptations during weaning from veno-venous extracorporeal membrane oxygenation. Intensive Care Med Exp 2023; 11:7. [PMID: 36759388 PMCID: PMC9911184 DOI: 10.1186/s40635-023-00493-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 01/18/2023] [Indexed: 02/11/2023] Open
Abstract
Veno-venous extracorporeal membrane oxygenation (V-V ECMO) has an established evidence base in acute respiratory distress syndrome (ARDS) and has seen exponential growth in its use over the past decades. However, there is a paucity of evidence regarding the approach to weaning, with variation of practice and outcomes between centres. Preconditions for weaning, management of patients' sedation and mechanical ventilation during this phase, criteria defining success or failure, and the optimal duration of a trial prior to decannulation are all debated subjects. Moreover, there is no prospective evidence demonstrating the superiority of weaning the sweep gas flow (SGF), the extracorporeal blood flow (ECBF) or the fraction of oxygen of the SGF (FdO2), thereby a broad inter-centre variability exists in this regard. Accordingly, the aim of this review is to discuss the required physiological basis to interpret different weaning approaches: first, we will outline the physiological changes in blood gases which should be expected from manipulations of ECBF, SGF and FdO2. Subsequently, we will describe the resulting adaptation of patients' control of breathing, with special reference to the effects of weaning on respiratory effort. Finally, we will discuss pertinent elements of the monitoring and mechanical ventilation of passive and spontaneously breathing patients during a weaning trial. Indeed, to avoid lung injury, invasive monitoring is often required in patients making spontaneous effort, as pressures measured at the airway may not reflect the degree of lung strain. In the absence of evidence, our approach to weaning is driven largely by an understanding of physiology.
Collapse
Affiliation(s)
- Patrick Duncan Collins
- Department of Critical Care Medicine, Guy's and St. Thomas' National Health Service Foundation Trust, London, UK.
| | - Lorenzo Giosa
- grid.420545.20000 0004 0489 3985Department of Critical Care Medicine, Guy’s and St. Thomas’ National Health Service Foundation Trust, London, UK ,grid.13097.3c0000 0001 2322 6764Centre for Human and Applied Physiological Sciences, School of Basic and Medical Biosciences, King’s College London, London, UK
| | - Valentina Camarda
- grid.420545.20000 0004 0489 3985Department of Critical Care Medicine, Guy’s and St. Thomas’ National Health Service Foundation Trust, London, UK
| | - Luigi Camporota
- grid.420545.20000 0004 0489 3985Department of Critical Care Medicine, Guy’s and St. Thomas’ National Health Service Foundation Trust, London, UK ,grid.13097.3c0000 0001 2322 6764Centre for Human and Applied Physiological Sciences, School of Basic and Medical Biosciences, King’s College London, London, UK
| |
Collapse
|
28
|
Battaglini D, Fazzini B, Silva PL, Cruz FF, Ball L, Robba C, Rocco PRM, Pelosi P. Challenges in ARDS Definition, Management, and Identification of Effective Personalized Therapies. J Clin Med 2023; 12:1381. [PMID: 36835919 PMCID: PMC9967510 DOI: 10.3390/jcm12041381] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/07/2023] [Accepted: 02/08/2023] [Indexed: 02/12/2023] Open
Abstract
Over the last decade, the management of acute respiratory distress syndrome (ARDS) has made considerable progress both regarding supportive and pharmacologic therapies. Lung protective mechanical ventilation is the cornerstone of ARDS management. Current recommendations on mechanical ventilation in ARDS include the use of low tidal volume (VT) 4-6 mL/kg of predicted body weight, plateau pressure (PPLAT) < 30 cmH2O, and driving pressure (∆P) < 14 cmH2O. Moreover, positive end-expiratory pressure should be individualized. Recently, variables such as mechanical power and transpulmonary pressure seem promising for limiting ventilator-induced lung injury and optimizing ventilator settings. Rescue therapies such as recruitment maneuvers, vasodilators, prone positioning, extracorporeal membrane oxygenation, and extracorporeal carbon dioxide removal have been considered for patients with severe ARDS. Regarding pharmacotherapies, despite more than 50 years of research, no effective treatment has yet been found. However, the identification of ARDS sub-phenotypes has revealed that some pharmacologic therapies that have failed to provide benefits when considering all patients with ARDS can show beneficial effects when these patients were stratified into specific sub-populations; for example, those with hyperinflammation/hypoinflammation. The aim of this narrative review is to provide an overview on current advances in the management of ARDS from mechanical ventilation to pharmacological treatments, including personalized therapy.
Collapse
Affiliation(s)
- Denise Battaglini
- Anesthesia and Intensive Care, San Martino Policlinico Hospital, IRCCS for Oncology and Neuroscience, 16132 Genoa, Italy
| | - Brigitta Fazzini
- Adult Critical Care Unit, Royal London Hospital, Barts Health NHS Trust, Whitechapel, London E1 1BB, UK
| | - Pedro Leme Silva
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro 21941-901, Brazil
| | - Fernanda Ferreira Cruz
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro 21941-901, Brazil
| | - Lorenzo Ball
- Anesthesia and Intensive Care, San Martino Policlinico Hospital, IRCCS for Oncology and Neuroscience, 16132 Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, 15145 Genoa, Italy
| | - Chiara Robba
- Anesthesia and Intensive Care, San Martino Policlinico Hospital, IRCCS for Oncology and Neuroscience, 16132 Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, 15145 Genoa, Italy
| | - Patricia R. M. Rocco
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro 21941-901, Brazil
| | - Paolo Pelosi
- Anesthesia and Intensive Care, San Martino Policlinico Hospital, IRCCS for Oncology and Neuroscience, 16132 Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, 15145 Genoa, Italy
| |
Collapse
|
29
|
Yu J, Wu Z, An R, Li H, Zhang T, Lin W, Tan H, Cao L. Association between driving pressure and postoperative pulmonary complications in patients undergoing lung resection surgery: A randomised clinical trial. Anaesth Crit Care Pain Med 2023; 42:101160. [PMID: 36349571 DOI: 10.1016/j.accpm.2022.101160] [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: 05/17/2022] [Revised: 08/16/2022] [Accepted: 08/21/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND It is uncertain whether an association exists for decreases in driving pressure and the occurrence of postoperative pulmonary complications (PPCs) in patients undergoing selective lung resection surgery. Thus, we designed this study to determine whether the positive end-expiratory pressure (PEEP) titration to the lowest driving pressure compared with conventional low PEEP level during one-lung ventilation (OLV) in patients undergoing selective lung resection surgery decreases PPCs. METHODS This single-centre, randomised trial approved by the Ethical Committee of the Sun Yat-Sen University Cancer Center involved patients who signed written consent. Patients were randomised to the PEEP titration to the lowest driving pressure group (n = 104), or to the conventional low level of PEEP group (n = 103), consisting a PEEP level of 4 cm H2O during OLV. All patients received volume-controlled ventilation with a tidal volume of 6 mL/kg of predicted body weight. The primary outcome was defined as positive if 4 or more of eight Melbourne Group Scale (MGS) variables developed within the first 3 days after surgery. The incidence of major PPCs occurring during postoperative 7 days was also recorded. RESULTS Among 222 patients who were randomised, 207 (93%) completed the trial (109 men [53%]; mean age, 56.9 years). The primary outcome occurred in 4 of 104 patients (4%) in the PEEP titration to the lowest driving pressure group compared with 13 of 103 patients (13%) in the conventional low level of PEEP group (risk ratio, 0.32 [95% CI, 0.10-0.90]; P = 0.021). CONCLUSIONS Among patients undergoing selective lung surgery, intraoperative OLV with PEEP titration to the lowest driving pressure compared with conventional low PEEP level (4 cm H2O) significantly reduced PPCs within the first 3 postoperative days, however, did not significantly reduce PPCs within the first 7 postoperative days.
Collapse
Affiliation(s)
- Junjie Yu
- Department of Anaesthesiology, Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, China
| | - Zhijie Wu
- Department of Anaesthesiology, Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, China; Department of Anaesthesiology, Chaozhou Central Hospital Affiliated to Southern Medical University, Chaozhou, China
| | - Rui An
- Department of Anaesthesiology, Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, China
| | - Huiting Li
- Department of Anaesthesiology, Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, China
| | - Tianhua Zhang
- Department of Anaesthesiology, Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, China
| | - Wenqian Lin
- Department of Anaesthesiology, Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, China
| | - Hongying Tan
- Department of Anaesthesiology, Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, China.
| | - Longhui Cao
- Department of Anaesthesiology, Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, China.
| |
Collapse
|
30
|
Wieruszewski PM, Ortoleva JP, Cormican DS, Seelhammer TG. Extracorporeal Membrane Oxygenation in Acute Respiratory Failure. Pulm Ther 2023; 9:109-126. [PMID: 36670314 PMCID: PMC9859746 DOI: 10.1007/s41030-023-00214-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 01/09/2023] [Indexed: 01/22/2023] Open
Abstract
Venovenous (VV) extracorporeal membrane oxygenation (ECMO) is a form of mechanical life support that provides full respiratory bypass in patients with severe respiratory failure as a bridge to recovery or lung transplantation. The use of ECMO for respiratory failure and capable centers offering ECMO has expanded over the years, increasing its availability. As VV-ECMO provides an artificial mechanism for oxygenation and decarboxylation of native blood, it allows for an environment in which safer mechanical ventilatory care may be provided, allowing for treatment and resolution of underlying respiratory pathologies. Landmark clinical trials have provided a framework for better understanding patient selection criteria, resource utilization, and outcomes associated with ECMO when applied in settings of refractory respiratory failure. Maintaining close vigilance and management of complications during ECMO as well as identifying strategies post-ECMO (e.g., recovery, transplantation, etc.), are critical to successful ECMO support. In this review, we examine considerations for candidate selection for VV-ECMO, review the evidence of utilizing VV-ECMO in respiratory failure, and provide practical considerations for managing respiratory ECMO patients, including complication identification and management, as well as assessing for the ability to separate from ECMO support and the procedures for decannulation.
Collapse
Affiliation(s)
- Patrick M. Wieruszewski
- Department of Anesthesiology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905 USA ,Department of Pharmacy, Mayo Clinic, 200 First Street SW, Rochester, MN 55905 USA
| | - Jamel P. Ortoleva
- Department of Anesthesiology and Perioperative Medicine, Tufts Medical Center, Boston, MA USA
| | - Daniel S. Cormican
- Division of Cardiothoracic Anesthesiology, Allegheny General Hospital, Pittsburg, PA USA
| | - Troy G. Seelhammer
- Department of Anesthesiology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905 USA
| |
Collapse
|
31
|
McClintock CR, Mulholland N, Krasnodembskaya AD. Biomarkers of mitochondrial dysfunction in acute respiratory distress syndrome: A systematic review and meta-analysis. Front Med (Lausanne) 2022; 9:1011819. [PMID: 36590959 PMCID: PMC9795057 DOI: 10.3389/fmed.2022.1011819] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 11/18/2022] [Indexed: 12/15/2022] Open
Abstract
Introduction Acute respiratory distress syndrome (ARDS) is one of the main causes of Intensive Care Unit morbidity and mortality. Metabolic biomarkers of mitochondrial dysfunction are correlated with disease development and high mortality in many respiratory conditions, however it is not known if they can be used to assess risk of mortality in patients with ARDS. Objectives The aim of this systematic review was to examine the link between recorded biomarkers of mitochondrial dysfunction in ARDS and mortality. Methods A systematic review of CINAHL, EMBASE, MEDLINE, and Cochrane databases was performed. Studies had to include critically ill ARDS patients with reported biomarkers of mitochondrial dysfunction and mortality. Information on the levels of biomarkers reflective of energy metabolism and mitochondrial respiratory function, mitochondrial metabolites, coenzymes, and mitochondrial deoxyribonucleic acid (mtDNA) copy number was recorded. RevMan5.4 was used for meta-analysis. Biomarkers measured in the samples representative of systemic circulation were analyzed separately from the biomarkers measured in the samples representative of lung compartment. Cochrane risk of bias tool and Newcastle-Ottawa scale were used to evaluate publication bias (Prospero protocol: CRD42022288262). Results Twenty-five studies were included in the systematic review and nine had raw data available for follow up meta-analysis. Biomarkers of mitochondrial dysfunction included mtDNA, glutathione coupled mediators, lactate, malondialdehyde, mitochondrial genetic defects, oxidative stress associated markers. Biomarkers that were eligible for meta-analysis inclusion were: xanthine, hypoxanthine, acetone, N-pentane, isoprene and mtDNA. Levels of mitochondrial biomarkers were significantly higher in ARDS than in non-ARDS controls (P = 0.0008) in the blood-based samples, whereas in the BAL the difference did not reach statistical significance (P = 0.14). mtDNA was the most frequently measured biomarker, its levels in the blood-based samples were significantly higher in ARDS compared to non-ARDS controls (P = 0.04). Difference between mtDNA levels in ARDS non-survivors compared to ARDS survivors did not reach statistical significance (P = 0.05). Conclusion Increased levels of biomarkers of mitochondrial dysfunction in the blood-based samples are positively associated with ARDS. Circulating mtDNA is the most frequently measured biomarker of mitochondrial dysfunction, with significantly elevated levels in ARDS patients compared to non-ARDS controls. Its potential to predict risk of ARDS mortality requires further investigation. Systematic review registration [https://www.crd.york.ac.uk/prospero], identifier [CRD42022288262].
Collapse
Affiliation(s)
- Catherine R. McClintock
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen’s University Belfast, Belfast, United Kingdom
| | | | | |
Collapse
|
32
|
Mechanical power is associated with weaning outcome in critically ill mechanically ventilated patients. Sci Rep 2022; 12:19634. [PMID: 36385129 PMCID: PMC9669041 DOI: 10.1038/s41598-022-21609-2] [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: 06/24/2022] [Accepted: 09/29/2022] [Indexed: 11/17/2022] Open
Abstract
Several single-center studies have evaluated the predictive performance of mechanical power (MP) on weaning outcomes in prolonged invasive mechanical ventilation (IMV) patients. The relationship between MP and weaning outcomes in all IMV patients has rarely been studied. A retrospective study was conducted on MIMIC-IV patients with IMV for more than 24 h to investigate the correlation between MP and weaning outcome using logistic regression model and subgroup analysis. The discriminative ability of MP, MP normalized to dynamic lung compliance (Cdyn-MP) and MP normalized to predicted body weight (PBW-MP) on weaning outcome were evaluated by analyzing the area under the receiver-operating characteristic (AUROC). Following adjustment for confounding factors, compared with the reference group, the Odds Ratio of weaning failure in the maximum MP, Cdyn-MP, and PBW-MP groups increased to 3.33 [95%CI (2.04-4.53), P < 0.001], 3.58 [95%CI (2.27-5.56), P < 0.001] and 5.15 [95%CI (3.58-7.41), P < 0.001], respectively. The discriminative abilities of Cdyn-MP (AUROC 0.760 [95%CI 0.745-0.776]) and PBW-MP (AUROC 0.761 [95%CI 0.744-0.779]) were higher than MP (AUROC 0.745 [95%CI 0.730-0.761]) (P < 0.05). MP is associated with weaning outcomes in IMV patients and is an independent predictor of the risk of weaning failure. Cdyn-MP and PBW-MP showed higher ability in weaning failure prediction than MP.
Collapse
|
33
|
Martos-Benítez FD, Estévez-Muguercia R, Orama-Requejo V, Del Toro-Simoni T. Prognostic value of the novel P/FPE index to classify ARDS severity: A cohort study. Med Intensiva 2022:S2173-5727(22)00309-5. [PMID: 36344340 DOI: 10.1016/j.medine.2022.06.023] [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: 02/23/2022] [Accepted: 06/07/2022] [Indexed: 06/16/2023]
Abstract
OBJECTIVE To evaluate the impact of the novel P/FPE index to classify ARDS severity on mortality of patients with ARDS. DESIGN A retrospective cohort study. SETTING Twelve-bed medical and surgical intensive care unit from January 2018 to December 2020. PATIENTS A total of 217 ARDS patients managed with invasive mechanical ventilation >48h. INTERVENTIONS None. VARIABLES ARDS severity on day 1 and day 3 was measured based on PaO2/FiO2 ratio and P/FPE index [PaO2/(FiO2×PEEP)]. Primary outcome was the hospital mortality. RESULTS Hospital mortality rate was 59.9%. Relative to PaO2/FiO2 ratio, 31.8% of patients on day 1 and 77.0% on day 3 were reclassified into a different category of ARDS severity by P/FPE index. The level of PEEP was lower by P/FPE index-based ARDS severity classification than by using PaO2/FiO2 ratio. The performance for predicting mortality of P/FPE index was superior to PaO2/FiO2 ratio in term of AROC (day 1: 0.72 vs. 0.62; day 3: 0.87 vs. 0.68) and CORR (day 1: 0.370 vs. 0.213; day 3: 0.634 vs. 0.301). P/FPE index improved prediction of risk of death compared to PaO2/FiO2 ratio as showed by the qNRI (day 1: 72.0%, p<0.0001; day 3: 132.4%, p<0.0001) and IDI (day 1: 0.09, p<0.0001; day 3: 0.31, p<0.0001). CONCLUSIONS Assessment of ARDS severity based on P/FPE index seems better than PaO2/FiO2 ratio for predicting mortality. The value of P/FPE index for clinical decision-making requires confirmation by randomized controlled trials.
Collapse
Affiliation(s)
- F D Martos-Benítez
- Intensive Care Unit - 8, Hermanos Ameijeiras Hospital, Havana 10400, Cuba.
| | | | - V Orama-Requejo
- Intermediate Care Unit, Hospital of Palamos, Palamos 17230, Spain
| | - T Del Toro-Simoni
- Intensive Care Unit, Manuel Ascunce Domenech Hospital, Camagüey 70600, Cuba
| |
Collapse
|
34
|
Jaeger BR, Arron HE, Kalka-Moll WM, Seidel D. The potential of heparin-induced extracorporeal LDL/fibrinogen precipitation (H.E.L.P.)-apheresis for patients with severe acute or chronic COVID-19. Front Cardiovasc Med 2022; 9:1007636. [PMID: 36304538 PMCID: PMC9592739 DOI: 10.3389/fcvm.2022.1007636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 08/30/2022] [Indexed: 11/13/2022] Open
Abstract
Patients with long COVID and acute COVID should benefit from treatment with H.E.L.P. apheresis, which is in clinical use for 37 years. COVID-19 can cause a severe acute multi-organ illness and, subsequently, in many patients the chronic illness long-COVID/PASC. The alveolar tissue and adjacent capillaries show inflammatory and procoagulatory activation with cell necrosis, thrombi, and massive fibrinoid deposits, namely, unsolvable microthrombi, which results in an obstructed gas exchange. Heparin-induced extracorporeal LDL/fibrinogen precipitation (H.E.L.P.) apheresis solves these problems by helping the entire macro- and microcirculation extracorporeally. It uses unfractionated heparin, which binds the spike protein and thereby should remove the virus (debris). It dissolves the forming microthrombi without bleeding risk. It removes large amounts of fibrinogen (coagulation protein), which immediately improves the oxygen supply in the capillaries. In addition, it removes the precursors of both the procoagulatory and the fibrinolytic cascade, thus de-escalating the entire hemostaseological system. It increases myocardial, cerebral, and pulmonary blood flow rates, and coronary flow reserve, facilitating oxygen exchange in the capillaries, without bleeding risks. Another factor in COVID is the “cytokine storm” harming microcirculation in the lungs and other organs. Intervention by H.E.L.P. apheresis could prevent uncontrollable coagulation and inflammatory activity by removing cytokines such as interleukin (IL)-6, IL-8, and TNF-α, and reduces C-reactive protein, and eliminating endo- and ecto-toxins, without touching protective IgM/IgG antibodies, leukocyte, or platelet function. The therapy can be used safely in combination with antiviral drugs, antibiotics, anticoagulants, or antihypertensive drugs. Long-term clinical experience with H.E.L.P. apheresis shows it cannot inflict harm upon patients with COVID-19.
Collapse
Affiliation(s)
- Beate Roxane Jaeger
- Lipidzentrum Nordrhein, Mülheim, Germany,*Correspondence: Beate Roxane Jaeger
| | - Hayley Emma Arron
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, South Africa
| | - Wiltrud M. Kalka-Moll
- Institut für infektiologische und mikrobiologische Beratung (Infactio), Bedburg, Germany
| | - Dietrich Seidel
- Institut tür Klinische Chemie und Laboratoriumsmedizin, Ludwig-Maximilians-Universität München, Munich, Germany
| |
Collapse
|
35
|
Extracorporeal Life Support for Status Asthmaticus: Early Outcomes in Teens and Young Adults. ASAIO J 2022; 68:1305-1311. [PMID: 36194100 DOI: 10.1097/mat.0000000000001644] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Extracorporeal life support (ECLS) may be life saving for patients with status asthmaticus (SA), a difficult-to-treat, severe subset of asthma. Contemporary ECLS outcomes for SA in teens and young adults are not well described. The Extracorporeal Life Support Organization (ELSO) Registry was reviewed (2009-2019) for patients (15-35 years) with a primary diagnosis of SA. In-hospital mortality and complications were described. Multivariable logistic regression was used to identify independent risk factors for hospital mortality. Overall, 137 patients, (26 teens and 111 young adults; median age 25 years) were included. Extracorporeal life support utilization for SA sharply increased in 2010, coinciding with increased ECLS utilization overall. Median ECLS duration and length of stay were 97 hours and 11 days, respectively. In-hospital mortality and major complication rates were 10% and 11%, respectively. Nonsurvivors were more likely to have experienced ECLS complications, compared to survivors (86% vs. 42%, p = 0.003). Independent risk factors for in-hospital mortality included pre-ECLS arrest and any renal and/or neurologic complication. Prospective studies designed to evaluate complications and subsequent failure to rescue may help optimize quality improvement efforts.
Collapse
|
36
|
Erlebach R, Wild LC, Seeliger B, Rath AK, Andermatt R, Hofmaenner DA, Schewe JC, Ganter CC, Müller M, Putensen C, Natanov R, Kühn C, Bauersachs J, Welte T, Hoeper MM, Wendel-Garcia PD, David S, Bode C, Stahl K. Outcomes of patients with acute respiratory failure on veno-venous extracorporeal membrane oxygenation requiring additional circulatory support by veno-venoarterial extracorporeal membrane oxygenation. Front Med (Lausanne) 2022; 9:1000084. [PMID: 36213640 PMCID: PMC9539450 DOI: 10.3389/fmed.2022.1000084] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 09/05/2022] [Indexed: 12/05/2022] Open
Abstract
Objective Veno-venous (V-V) extracorporeal membrane oxygenation (ECMO) is increasingly used to support patients with severe acute respiratory distress syndrome (ARDS). In case of additional cardio-circulatory failure, some experienced centers upgrade the V-V ECMO with an additional arterial return cannula (termed V-VA ECMO). Here we analyzed short- and long-term outcome together with potential predictors of mortality. Design Multicenter, retrospective analysis between January 2008 and September 2021. Setting Three tertiary care ECMO centers in Germany (Hannover, Bonn) and Switzerland (Zurich). Patients Seventy-three V-V ECMO patients with ARDS and additional acute cardio-circulatory deterioration required an upgrade to V-VA ECMO were included in this study. Measurements and main results Fifty-three patients required an upgrade from V-V to V-VA and 20 patients were directly triple cannulated. Median (Interquartile Range) age was 49 (28–57) years and SOFA score was 14 (12–17) at V-VA ECMO upgrade. Vasoactive-inotropic score decreased from 53 (12–123) at V-VA ECMO upgrade to 9 (3–37) after 24 h of V-VA ECMO support. Weaning from V-VA and V-V ECMO was successful in 47 (64%) and 40 (55%) patients, respectively. Duration of ECMO support was 12 (6–22) days and ICU length of stay was 32 (16–46) days. Overall ICU mortality was 48% and hospital mortality 51%. Two additional patients died after hospital discharge while the remaining patients survived up to two years (with six patients being lost to follow-up). The vast majority of patients was free from higher degree persistent organ dysfunction at follow-up. A SOFA score > 14 and higher lactate concentrations at the day of V-VA upgrade were independent predictors of mortality in the multivariate regression analysis. Conclusion In this analysis, the use of V-VA ECMO in patients with ARDS and concomitant cardiocirculatory failure was associated with a hospital survival of about 50%, and most of these patients survived up to 2 years. A SOFA score > 14 and elevated lactate levels at the day of V-VA upgrade predict unfavorable outcome.
Collapse
Affiliation(s)
- Rolf Erlebach
- Institute of Intensive Care Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Lennart C. Wild
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany
| | - Benjamin Seeliger
- Department of Respiratory Medicine and German Centre of Lung Research (DZL), Hannover Medical School, Hanover, Germany
| | - Ann-Kathrin Rath
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hanover, Germany
| | - Rea Andermatt
- Institute of Intensive Care Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Daniel A. Hofmaenner
- Institute of Intensive Care Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Jens-Christian Schewe
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany
| | - Christoph C. Ganter
- Institute of Intensive Care Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Mattia Müller
- Institute of Intensive Care Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Christian Putensen
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany
| | - Ruslan Natanov
- Department of Cardiothoracic, Transplant and Vascular Surgery, Hannover Medical School, Hanover, Germany
| | - Christian Kühn
- Department of Cardiothoracic, Transplant and Vascular Surgery, Hannover Medical School, Hanover, Germany
- German Research Foundation (DFG), Clinical Research Group (KFO 311): “(Pre)terminal Heart and Lung Failure: Unloading and Repair”, Germany
| | - Johann Bauersachs
- German Research Foundation (DFG), Clinical Research Group (KFO 311): “(Pre)terminal Heart and Lung Failure: Unloading and Repair”, Germany
- Department of Cardiology and Angiology, Hannover Medical School, Hanover, Germany
| | - Tobias Welte
- Department of Respiratory Medicine and German Centre of Lung Research (DZL), Hannover Medical School, Hanover, Germany
- German Research Foundation (DFG), Clinical Research Group (KFO 311): “(Pre)terminal Heart and Lung Failure: Unloading and Repair”, Germany
| | - Marius M. Hoeper
- Department of Respiratory Medicine and German Centre of Lung Research (DZL), Hannover Medical School, Hanover, Germany
- German Research Foundation (DFG), Clinical Research Group (KFO 311): “(Pre)terminal Heart and Lung Failure: Unloading and Repair”, Germany
| | | | - Sascha David
- Institute of Intensive Care Medicine, University Hospital Zurich, Zurich, Switzerland
- *Correspondence: Sascha David,
| | - Christian Bode
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany
| | - Klaus Stahl
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hanover, Germany
| |
Collapse
|
37
|
Worku ET, Yeung F, Anstey C, Shekar K. The impact of reduction in intensity of mechanical ventilation upon venovenous ECMO initiation on radiographically assessed lung edema scores: A retrospective observational study. Front Med (Lausanne) 2022; 9:1005192. [PMID: 36203770 PMCID: PMC9531725 DOI: 10.3389/fmed.2022.1005192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 08/26/2022] [Indexed: 11/26/2022] Open
Abstract
Background Patients with severe acute respiratory distress syndrome (ARDS) typically receive ultra-protective ventilation after extracorporeal membrane oxygenation (ECMO) is initiated. While the benefit of ECMO appears to derive from supporting “lung rest”, reductions in the intensity of mechanical ventilation, principally tidal volume limitation, may manifest radiologically. This study evaluated the relative changes in radiographic assessment of lung edema (RALE) score upon venovenous ECMO initiation in patients with severe ARDS. Methods Digital chest x-rays (CXR) performed at baseline immediately before initiation of ECMO, and at intervals post (median 1.1, 2.1, and 9.6 days) were reviewed in 39 Adult ARDS patients. One hundred fifty-six digital images were scored by two independent, blinded radiologists according to the RALE (Radiographic Assessment of Lung Edema) scoring criteria. Ventilatory data, ECMO parameters and fluid balance were recorded at corresponding time points. Multivariable analysis was performed analyzing the change in RALE score over time relative to baseline. Results The RALE score demonstrated excellent inter-rater agreement in this novel application in an ECMO cohort. Mean RALE scores increased from 28 (22–37) at baseline to 35 (26–42) (p < 0.001) on D1 of ECMO; increasing RALE was associated with higher baseline APACHE III scores [ß value +0.19 (0.08, 0.30) p = 0.001], and greater reductions in tidal volume [ß value −2.08 (−3.07, −1.10) p < 0.001] after ECMO initiation. Duration of mechanical ventilation, and ECMO support did not differ between survivors and non-survivors. Conclusions The magnitude of reductions in delivered tidal volumes correlated with increasing RALE scores (radiographic worsening) in ARDS patients receiving ECMO. Implications for patient centered outcomes remain unclear. There is a need to define appropriate ventilator settings on venovenous ECMO, counterbalancing the risks vs. benefits of optimal “lung rest” against potential atelectrauma.
Collapse
Affiliation(s)
- Elliott T. Worku
- Adult Intensive Care Services, The Prince Charles Hospital, Brisbane, QLD, Australia
- Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia
- *Correspondence: Elliott T. Worku
| | - Francis Yeung
- Adult Intensive Care Services, The Prince Charles Hospital, Brisbane, QLD, Australia
| | - Chris Anstey
- Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia
- School of Medicine, Griffith University, Sunshine Coast Campus, Birtinya, QLD, Australia
| | - Kiran Shekar
- Adult Intensive Care Services, The Prince Charles Hospital, Brisbane, QLD, Australia
- Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia
| |
Collapse
|
38
|
Influence of the Driving Pressure on Mortality in ARDS Patients with or without Abdominal Obesity: A Retrospective Cohort Study. CONTRAST MEDIA & MOLECULAR IMAGING 2022; 2022:1219666. [PMID: 35909580 PMCID: PMC9307407 DOI: 10.1155/2022/1219666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/14/2022] [Accepted: 06/18/2022] [Indexed: 11/18/2022]
Abstract
Objective. This study sets out to explore if the relationship between the driving pressure and hospital mortality in ARDS patients is influenced by body mass index (BMI) level or the presence of abdominal obesity. Methods. Data were extracted from an online database named “Multiparameter Intelligent Monitoring in Intensive Care III.” A total of 1556 patients were included and divided into four subgroups based on both BMI level (BMI ≥30 kg/m2 or BMI <30 kg/m2) and abdominal assessment. Driving pressure [i.e., the difference between plateau pressure and positive end-expiratory pressure (PEEP)] within 24 h of invasive mechanical ventilation was compared between survivors and nonsurvivors during hospitalization in each group. A logistic regression model was used for hospital mortality. Results. There were 1556 patients with mild-to-severe ARDS, 666 (42.80%) nonobese patients with nonabdominal obesity, 259 (16.65%) nonobese patients with abdominal obesity, 97 (6.23%) obese patients with nonabdominal obesity, and 534 (34.32%) obese patients with abdominal obesity. Driving pressure in nonobese patients with nonabdominal obesity was significantly lower in survivors (12.77 ± 4.53 cm H2O) than in nonsurvivors (14.26 ± 5.52 cm H2O,
). On the contrary, in the other three groups, driving pressure was not significantly different between survivors and nonsurvivors. After a logistic multivariable regression analysis, in nonobese (BMI<30 kg/m2) patients with nonabdominal obesity, the driving pressure was independently associated with increased hospital mortality (OR: 1.04, 95% CI 1.00–1.09,
) but not in the other three subgroups. Conclusion. Driving pressure is associated with increase in hospital mortality only in nonobese (BMI <30 kg/m2) patients with nonabdominal obesity.
Collapse
|
39
|
Martos-Benítez F, Estévez-Muguercia R, Orama-Requejo V, del Toro-Simoni T. Prognostic value of the novel P/FPE index to classify ARDS severity: A cohort study. Med Intensiva 2022. [DOI: 10.1016/j.medin.2022.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
40
|
Worku E, Brodie D, Ling RR, Ramanathan K, Combes A, Shekar K. Venovenous extracorporeal CO 2 removal to support ultraprotective ventilation in moderate-severe acute respiratory distress syndrome: A systematic review and meta-analysis of the literature. Perfusion 2022:2676591221096225. [PMID: 35656595 DOI: 10.1177/02676591221096225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND A strategy that limits tidal volumes and inspiratory pressures, improves outcomes in patients with the acute respiratory distress syndrome (ARDS). Extracorporeal carbon dioxide removal (ECCO2R) may facilitate ultra-protective ventilation. We conducted a systematic review and meta-analysis to evaluate the efficacy and safety of venovenous ECCO2R in supporting ultra-protective ventilation in moderate-to-severe ARDS. METHODS MEDLINE and EMBASE were interrogated for studies (2000-2021) reporting venovenous ECCO2R use in patients with moderate-to-severe ARDS. Studies reporting ≥10 adult patients in English language journals were included. Ventilatory parameters after 24 h of initiating ECCO2R, device characteristics, and safety outcomes were collected. The primary outcome measure was the change in driving pressure at 24 h of ECCO2R therapy in relation to baseline. Secondary outcomes included change in tidal volume, gas exchange, and safety data. RESULTS Ten studies reporting 421 patients (PaO2:FiO2 141.03 mmHg) were included. Extracorporeal blood flow rates ranged from 0.35-1.5 L/min. Random effects modelling indicated a 3.56 cmH2O reduction (95%-CI: 3.22-3.91) in driving pressure from baseline (p < .001) and a 1.89 mL/kg (95%-CI: 1.75-2.02, p < .001) reduction in tidal volume. Oxygenation, respiratory rate and PEEP remained unchanged. No significant interactions between driving pressure reduction and baseline driving pressure, partial pressure of arterial carbon dioxide or PaO2:FiO2 ratio were identified in metaregression analysis. Bleeding and haemolysis were the commonest complications of therapy. CONCLUSIONS Venovenous ECCO2R permitted significant reductions in ∆P in patients with moderate-to-severe ARDS. Heterogeneity amongst studies and devices, a paucity of randomised controlled trials, and variable safety reporting calls for standardisation of outcome reporting. Prospective evaluation of optimal device operation and anticoagulation in high quality studies is required before further recommendations can be made.
Collapse
Affiliation(s)
- Elliott Worku
- Adult Intensive Care Services, 67567The Prince Charles Hospital, Metro North Hospital and Health Service, Brisbane, QLD, Australia
- University of Queensland, Brisbane, QLD, Australia
| | - Daniel Brodie
- Department of Medicine, 12294Columbia University College of Physicians and Surgeons, NY, USA
- Center for Acute Respiratory Failure, 25065New York-Presbyterian Hospital, NY, USA
| | - Ryan Ruiyang Ling
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Kollengode Ramanathan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Cardiothoracic Intensive Care Unit, 375583National University Heart Centre, National University Hospital, Singapore
| | - Alain Combes
- Sorbonne Université, Institute of Cardiometabolism and Nutrition, Paris, France
- Medical Intensive Care Unit, Assistance Publique-Hôpitaux de Paris, 26933Pitié-Salpêtrière Hospital, Paris, France
| | - Kiran Shekar
- Adult Intensive Care Services, 67567The Prince Charles Hospital, Metro North Hospital and Health Service, Brisbane, QLD, Australia
- University of Queensland, Brisbane, QLD, Australia
- Queensland University of Technology, Brisbane and Bond University, Gold Coast, QLD, Australia
| |
Collapse
|
41
|
Chen X, Lei X, Xu X, Zhou Y, Huang M. Intensive Care Unit-Acquired Weakness in Patients With Extracorporeal Membrane Oxygenation Support: Frequency and Clinical Characteristics. Front Med (Lausanne) 2022; 9:792201. [PMID: 35620711 PMCID: PMC9128022 DOI: 10.3389/fmed.2022.792201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 04/04/2022] [Indexed: 11/15/2022] Open
Abstract
Background Intensive care unit-acquired weakness (ICU-AW) is common in critical illness patients and is well described. Extracorporeal membrane oxygenation (ECMO) is used as a life-saving method and patients with ECMO support often suffer more risk factors of ICU-AW. However, information on the frequency and clinical characteristics of ICU-AW in patients with ECMO support is lacking. Our study aims to clarify the frequency and characteristics of ICU-AW in ECMO patients. Methods We conducted a retrospective study, ICU-AW was diagnosed when patients were discharged with a Medical Research Council (MRC) sum score <48. Clinical information was collected from the case report forms. Univariable analysis, LASSO regression analysis, and logistic regression analysis were used to analyze the clinical data of individuals. Results In ECMO population, 40 (80%) patients diagnosed with ICU-AW. On univariable analysis, the ICU-AW group had higher Acute Physiology and Chronic Health Evaluation II (APACHE II) [13.9 (6.5-21.3) versus 21.1 (14.3-27.9), p = 0.005], longer deep sedation time [2 (0-7) versus 6.5 (3-11), p = 0.005], longer mechanical ventilation time [6.8 (2.6-9.3) versus 14.3 (6.6-19.3), p = 0.008], lower lowest albumin [26.7 (23.8-29.5) versus 22.1 (18.5-25.7), p < 0.001]. The LASSO analysis showed mechanical ventilation time, deep sedation time, deep sedation time during ECMO operation, APACHE II, and lowest albumin level were independent predictors of ICU-AW. To investigate whether ICU-AW occurs more frequently in the ECMO population, we performed a 1:1 matching with patients without ECMO and found there was no difference in the incidence of ICU-AW between the two groups. Logistic regression analysis of combined cohorts showed lowest albumin odds ratio (OR: 1.9, p = 0.024), deep sedation time (OR: 1.9, p = 0.022), mechanical ventilation time (OR: 2.0, p = 0.034), and APACHE II (OR: 2.3, p = 0.034) were independent risk factors of ICU-AW, but not ECMO. Conclusion The ICU-AW was common with a prevalence of 80% in the ECMO population. Mechanical ventilation time, deep sedation time, deep sedation time during ECMO operation, APACHE II, and lowest albumin level were risk factors of ICU-AW in ECMO population. The ECMO wasn't an independent risk factor of ICU-AW.
Collapse
Affiliation(s)
| | | | | | | | - Man Huang
- Department of General Intensive Care Unit, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| |
Collapse
|
42
|
Ortoleva JP, Chweich H. Normalizing the Abnormal: Hypoxemia in Venovenous ECMO. J Cardiothorac Vasc Anesth 2022; 36:3433-3434. [DOI: 10.1053/j.jvca.2022.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 04/29/2022] [Accepted: 05/02/2022] [Indexed: 11/11/2022]
|
43
|
Impact of the inspiratory oxygen fraction on the cardiac output during jugulo-femoral venoarterial extracorporeal membrane oxygenation in the rat. BMC Cardiovasc Disord 2022; 22:174. [PMID: 35428203 PMCID: PMC9013166 DOI: 10.1186/s12872-022-02613-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 04/01/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Venoarterial extracorporeal membrane oxygenation (V-A ECMO) with femoral access has gained wide acceptance in the treatment of critically ill patients. Since the patient´s cardiac output (CO) can compete with the retrograde aortic ECMO-flow, the aim of this study was to examine the impact of the inspiratory oxygen fraction on the cardiac function during V-A ECMO therapy.
Methods
Eighteen male Lewis rats (350–400 g) received V-A ECMO therapy. The inspiratory oxygen fraction on the ventilator was randomly set to 0.5 (group A), 0.21 (group B), or 0 in order to simulate apnea (group C), respectively. Each group consisted of six animals. Arterial blood pressure, central venous saturation (ScvO2), CO, stroke volume, left ventricular ejection fraction (LVEF), end diastolic volume, and pressure were measured. Cardiac injury was determined by analyzing the amount of lactate dehydrogenase (LDH).
Results
During anoxic ventilation the systolic, mean and diastolic arterial pressure, CO, stroke volume, LVEF and ScvO2 were significantly impaired compared to group A and B. The course of LDH values revealed no significant differences between the groups.
Conclusion
Anoxic ventilation during V-A ECMO with femoral cannulation leads to cardiogenic shock in rats. Therefore, awake V-A ECMO patients might be at risk for hypoxia-induced complications.
Collapse
|
44
|
Graf PT, Boesing C, Brumm I, Biehler J, Müller KW, Thiel M, Pelosi P, Rocco PRM, Luecke T, Krebs J. Ultraprotective versus apneic ventilation in acute respiratory distress syndrome patients with extracorporeal membrane oxygenation: a physiological study. J Intensive Care 2022; 10:12. [PMID: 35256012 PMCID: PMC8900404 DOI: 10.1186/s40560-022-00604-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 02/27/2022] [Indexed: 11/15/2022] Open
Abstract
Background Even an ultraprotective ventilation strategy in severe acute respiratory distress syndrome (ARDS) patients treated with extracorporeal membrane oxygenation (ECMO) might induce ventilator-induced lung injury and apneic ventilation with the sole application of positive end-expiratory pressure may, therefore, be an alternative ventilation strategy. We, therefore, compared the effects of ultraprotective ventilation with apneic ventilation on oxygenation, oxygen delivery, respiratory system mechanics, hemodynamics, strain, air distribution and recruitment of the lung parenchyma in ARDS patients with ECMO. Methods In a prospective, monocentric physiological study, 24 patients with severe ARDS managed with ECMO were ventilated using ultraprotective ventilation (tidal volume 3 ml/kg of predicted body weight) with a fraction of inspired oxygen (FiO2) of 21%, 50% and 90%. Patients were then treated with apneic ventilation with analogous FiO2. The primary endpoint was the effect of the ventilation strategy on oxygenation and oxygen delivery. The secondary endpoints were mechanical power, stress, regional air distribution, lung recruitment and the resulting strain, evaluated by chest computed tomography, associated with the application of PEEP (apneic ventilation) and/or low VT (ultraprotective ventilation). Results Protective ventilation, compared to apneic ventilation, improved oxygenation (arterial partial pressure of oxygen, p < 0.001 with FiO2 of 50% and 90%) and reduced cardiac output. Both ventilation strategies preserved oxygen delivery independent of the FiO2. Protective ventilation increased driving pressure, stress, strain, mechanical power, as well as induced additional recruitment in the non-dependent lung compared to apneic ventilation. Conclusions In patients with severe ARDS managed with ECMO, ultraprotective ventilation compared to apneic ventilation improved oxygenation, but increased stress, strain, and mechanical power. Apneic ventilation might be considered as one of the options in the initial phase of ECMO treatment in severe ARDS patients to facilitate lung rest and prevent ventilator-induced lung injury. Trial registration: German Clinical Trials Register (DRKS00013967). Registered 02/09/2018. https://www.drks.de/drks_web/navigate.do?navigationId=trial.HTML&TRIAL_ID=DRKS00013967. Supplementary Information The online version contains supplementary material available at 10.1186/s40560-022-00604-9.
Collapse
|
45
|
Riera J, Alcántara S, Bonilla C, Fortuna P, Blandino Ortiz A, Vaz A, Albacete C, Millán P, Ricart P, Boado MV, Ruiz de Gopegui P, Santa Teresa P, Sandoval E, Pérez-Chomón H, González-Pérez A, Duerto J, Gimeno R, Colomina J, Gómez V, Renedo G, Naranjo J, García MA, Rodríguez-Ruiz E, Silva PE, Pérez D, Veganzones J, Voces R, Martínez S, Blanco-Schweizer P, García M, Villanueva-Fernández H, Fuset MP, Luna SM, Martínez-Martínez M, Argudo E, Chiscano L, Roncon-Albuquerque R. Risk factors for mortality in patients with COVID-19 needing extracorporeal respiratory support. Eur Respir J 2022; 59:2102463. [PMID: 34824058 PMCID: PMC8620104 DOI: 10.1183/13993003.02463-2021] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 11/11/2021] [Indexed: 01/19/2023]
Abstract
Series describing the evolution of patients with severe acute respiratory distress syndrome (ARDS) secondary to coronavirus disease 2019 (COVID-19) and supported with extracorporeal membrane oxygenation (ECMO) during the first wave of the pandemic have reported mortalities ranging from 30% to 60% [1, 2]. More recent publications have demonstrated a trend towards a higher mortality in COVID-19 patients receiving support in later periods of the pandemic, even though the overall mortality of the disease seems lower [3, 4]. The reasons for this difference are not clear. When indicating ECMO in patients with COVID-19, centre case volume, age, driving pressure and the duration of symptoms (not the length of MV) should be taken into account. Large drainage cannula and high PEEP levels during the first days are recommended. https://bit.ly/3DGjGkk
Collapse
Affiliation(s)
- Jordi Riera
- Dept of Intensive Care, Hospital Universitari Vall d'Hebron, Barcelona, Spain
- SODIR, Vall d'Hebron Institut de Recerca, Barcelona, Spain
- CIBERES, CIBERESUCICOVID, Instituto de Salud Carlos III, Madrid, Spain
| | - Sara Alcántara
- Dept of Intensive Care, Hospital Universitario Puerta de Hierro, Majadahonda, Spain
| | - Camilo Bonilla
- Dept of Intensive Care, Hospital Universitari Vall d'Hebron, Barcelona, Spain
- SODIR, Vall d'Hebron Institut de Recerca, Barcelona, Spain
| | - Phillip Fortuna
- Medical Emergency Unit, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal
| | | | - Ana Vaz
- Dept of Intensive Care, São João Universitary Hospital Center, Porto, Portugal
| | - Carlos Albacete
- Dept of Intensive Care, Hospital Universitario Virgen de la Arrixaca, Murcia, Spain
| | - Pablo Millán
- Dept of Intensive Care, Hospital Universitario La Paz, Madrid, Spain
| | - Pilar Ricart
- Dept of Intensive Care, Hospital Universitari Germans-Trias i Pujol, Badalona, Spain
| | | | | | | | - Elena Sandoval
- Dept of Cardiac Surgery, Hospital Universitari Clínic, Barcelona, Spain
| | - Helena Pérez-Chomón
- Dept of Intensive Care, Hospital Universitario Virgen de la Macarena, Sevilla, Spain
| | | | - Jorge Duerto
- Dept of Intensive Care, Hospital Clínico San Carlos, Madrid, Spain
| | - Ricardo Gimeno
- Dept of Intensive Care, Hospital Universitari i Politècnic La Fe, València, Spain
| | - Joaquín Colomina
- Dept of Intensive Care, Hospital Universitari Son Espases, Palma de Mallorca, Spain
| | - Vanesa Gómez
- Dept of Intensive Care, Hospital Álvaro Cunqueiro, Vigo, Spain
| | - Gloria Renedo
- Dept of Intensive Care, Hospital Clínico Universitario, Valladolid, Spain
| | - José Naranjo
- Dept of Intensive Care, Hospital Universitario Reina Sofía, Córdoba, Spain
| | | | - Emilio Rodríguez-Ruiz
- Dept of Intensive Care, Hospital Clínico Universitario de Santiago de Compostela, Santiago de Compostela, Spain
| | - Pedro Eduardo Silva
- Medical Emergency Unit, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal
| | - Daniel Pérez
- Dept of Intensive Care, Hospital Universitario Virgen de la Arrixaca, Murcia, Spain
| | - Javier Veganzones
- Dept of Anesthesiology, Hospital Universitario La Paz, Madrid, Spain
| | - Roberto Voces
- Dept of Cardiac Surgery, Hospital Universitario Cruces, Barakaldo, Spain
| | - Sergi Martínez
- Dept of Intensive Care, Hospital Universitari Germans-Trias i Pujol, Badalona, Spain
| | | | - Marta García
- Dept of Intensive Care, Hospital Universitario Rio Hortega, Valladolid, Spain
| | | | - María Paz Fuset
- Dept of Intensive Care, Hospital Universitari Bellvitge, Barcelona, Spain
| | | | - María Martínez-Martínez
- Dept of Intensive Care, Hospital Universitari Vall d'Hebron, Barcelona, Spain
- SODIR, Vall d'Hebron Institut de Recerca, Barcelona, Spain
| | - Eduard Argudo
- Dept of Intensive Care, Hospital Universitari Vall d'Hebron, Barcelona, Spain
- SODIR, Vall d'Hebron Institut de Recerca, Barcelona, Spain
| | - Luis Chiscano
- Dept of Intensive Care, Hospital Universitari Vall d'Hebron, Barcelona, Spain
- SODIR, Vall d'Hebron Institut de Recerca, Barcelona, Spain
| | | |
Collapse
|
46
|
Lee BY, Lee SI, Baek MS, Baek AR, Na YS, Kim JH, Seong GM, Kim WY. Lower Driving Pressure and Neuromuscular Blocker Use Are Associated With Decreased Mortality in Patients With COVID-19 ARDS. Respir Care 2022; 67:216-226. [PMID: 34848546 PMCID: PMC9993948 DOI: 10.4187/respcare.09577] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND The impact of mechanical ventilation parameters and management on outcomes of patients with coronavirus disease 2019 (COVID-19) ARDS is unclear. METHODS This multi-center observational study enrolled consecutive mechanically ventilated patients with COVID-19 ARDS admitted to one of 7 Korean ICUs between February 1, 2020-February 28, 2021. Patients who were age < 17 y or had missing ventilation parameters for the first 4 d of mechanical ventilation were excluded. Multivariate logistic regression was used to identify which strategies or ventilation parameters that were independently associated with ICU mortality. RESULTS Overall, 129 subjects (males, 60%) with a median (interquartile range) age of 69 (62-78) y were included. Neuromuscular blocker (NMB) use and prone positioning were applied to 76% and 16% of subjects, respectively. The ICU mortality rate was 37%. In the multivariate analysis, higher dynamic driving pressure (ΔP) values during the first 4 d of mechanical ventilation were associated with increased mortality (adjusted odds ratio 1.16 [95% CI 1.00-1.33], P = .046). NMB use was associated with decreased mortality (adjusted odds ratio 0.27 [95% CI 0.09-0.81], P = .02). The median tidal volume values during the first 4 d of mechanical ventilation and the ICU mortality rate were significantly lower in the NMB group than in the no NMB group. However, subjects who received NMB for ≥ 6 d (vs < 6 d) had higher ICU mortality rate. CONCLUSIONS In subjects with COVID-19 ARDS receiving mechanical ventilation, ΔP during the first 4 d of mechanical ventilation was independently associated with mortality. The short-term use of NMB facilitated lung-protective ventilation and was independently associated with decreased mortality.
Collapse
Affiliation(s)
- Bo Young Lee
- Division of Allergy and Respiratory Diseases, Soonchunhyang University Seoul Hospital, Seoul, Republic of Korea
| | - Song-I Lee
- Department of Pulmonary and Critical Care Medicine, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Moon Seong Baek
- Department of Internal Medicine, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - Ae-Rin Baek
- Division of Allergy and Pulmonology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - Yong Sub Na
- Department of Pulmonology and Critical Care Medicine, Chosun University Hospital, Gwangju, Republic of Korea
| | - Jin Hyoung Kim
- Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
| | - Gil Myeong Seong
- Department of Internal Medicine, Jeju National University College of Medicine, Jeju, Republic of Korea
| | - Won-Young Kim
- Department of Internal Medicine, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Republic of Korea.
| |
Collapse
|
47
|
Prone Positioning During Venovenous Extracorporeal Membrane Oxygenation. Crit Care Med 2022; 50:343-345. [PMID: 35100198 DOI: 10.1097/ccm.0000000000005342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
48
|
Depta F, Turčan A, Török P, Kapraľová P, Gentile MA. COVID-19–related acute respiratory distress syndrome treated with veno-venous extracorporeal membrane oxygenation and programmed multi-level ventilation: a case report. Acute Crit Care 2022; 37:470-473. [PMID: 35081707 PMCID: PMC9475149 DOI: 10.4266/acc.2021.01109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 10/05/2021] [Indexed: 11/30/2022] Open
Abstract
We report a patient with severe coronavirus disease 2019 (COVID-19) acute respiratory distress syndrome (ARDS) treated with veno-venous extracorporeal membrane oxygenation (VV ECMO) and programmed multi-level ventilation (PMLV). VV ECMO as a treatment modality for severe ARDS has been described multiple times as a rescue therapy for refractory hypoxemia. It is well known that conventional ventilation can cause ventilator-induced lung injury. Protective ventilation during VV ECMO seems to be beneficial, translating to using low tidal volumes, prone positioning with general concept of open lung approach. However, mechanical ventilation is still required as ECMO per se is usually not sufficient to maintain adequate gas exchange due to hyperdynamic state of the patient and limitation of blood flow via VV ECMO. This report describes ventilation strategy using PMLV during “resting” period of the lung. In short, PMLV is a strategy for ventilating non-homogenous lungs that incorporates expiratory time constants and multiple levels of positive end-expiratory pressure. Using this approach, most affected acute lung injury/ARDS areas can be recruited, while preventing overdistension in healthy areas. To our knowledge, case report using such ventilation strategy for lung resting period has not been previously published.
Collapse
|
49
|
Laghlam D, Charpentier J, Hamou ZA, Nguyen LS, Pene F, Cariou A, Mira JP, Jozwiak M. Effects of Prone Positioning on Respiratory Mechanics and Oxygenation in Critically Ill Patients With COVID-19 Requiring Venovenous Extracorporeal Membrane Oxygenation. Front Med (Lausanne) 2022; 8:810393. [PMID: 35111786 PMCID: PMC8801420 DOI: 10.3389/fmed.2021.810393] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 12/13/2021] [Indexed: 01/08/2023] Open
Abstract
Background: The effect of prone positioning (PP) on respiratory mechanics remains uncertain in patients with severe acute respiratory distress syndrome (ARDS) requiring venovenous extracorporeal membrane oxygenation (VV-ECMO). Methods: We prospectively analyzed the effects of PP on respiratory mechanics from continuous data with over a thousand time points during 16-h PP sessions in patients with COVID-19 and ARDS under VV-ECMO conditions. The evolution of respiratory mechanical and oxygenation parameters during the PP sessions was evaluated by dividing each PP session into four time quartiles: first quartile: 0–4 h, second quartile: 4–8 h, third quartile: 8–12 h, and fourth quartile: 12–16 h. Results: Overall, 38 PP sessions were performed in 10 patients, with 3 [2–5] PP sessions per patient. Seven (70%) patients were responders to at least one PP session. PP significantly increased the PaO2/FiO2 ratio by 14 ± 21% and compliance by 8 ± 15%, and significantly decreased the oxygenation index by 13 ± 18% and driving pressure by 8 ± 12%. The effects of PP on respiratory mechanics but not on oxygenation persisted after supine repositioning. PP-induced changes in different respiratory mechanical parameters and oxygenation started as early as the first-time quartile, without any difference in PP-induced changes among the different time quartiles. PP-induced changes in driving pressure (−14 ± 14 vs. −6 ± 10%, p = 0.04) and mechanical power (−11 ± 13 vs. −0.1 ± 12%, p = 0.02) were significantly higher in responders (increase in PaO2/FiO2 ratio > 20%) than in non-responder patients. Conclusions: In patients with COVID-19 and severe ARDS, PP under VV-ECMO conditions improved the respiratory mechanical and oxygenation parameters, and the effects of PP on respiratory mechanics persisted after supine repositioning.
Collapse
Affiliation(s)
- Driss Laghlam
- Assistance Publique-Hôpitaux de Paris, Service de Médecine Intensive Réanimation, Hôpitaux Universitaires Paris-Centre, Hôpital Cochin, Paris, France
- Université de Paris, Paris, France
- *Correspondence: Driss Laghlam
| | - Julien Charpentier
- Assistance Publique-Hôpitaux de Paris, Service de Médecine Intensive Réanimation, Hôpitaux Universitaires Paris-Centre, Hôpital Cochin, Paris, France
- Université de Paris, Paris, France
| | - Zakaria Ait Hamou
- Assistance Publique-Hôpitaux de Paris, Service de Médecine Intensive Réanimation, Hôpitaux Universitaires Paris-Centre, Hôpital Cochin, Paris, France
- Université de Paris, Paris, France
| | - Lee S. Nguyen
- Recherche et Innovation de la Clinique Ambroise Paré, Neuilly-Sur-Seine, France
| | - Frédéric Pene
- Assistance Publique-Hôpitaux de Paris, Service de Médecine Intensive Réanimation, Hôpitaux Universitaires Paris-Centre, Hôpital Cochin, Paris, France
- Université de Paris, Paris, France
| | - Alain Cariou
- Assistance Publique-Hôpitaux de Paris, Service de Médecine Intensive Réanimation, Hôpitaux Universitaires Paris-Centre, Hôpital Cochin, Paris, France
- Université de Paris, Paris, France
| | - Jean-Paul Mira
- Assistance Publique-Hôpitaux de Paris, Service de Médecine Intensive Réanimation, Hôpitaux Universitaires Paris-Centre, Hôpital Cochin, Paris, France
- Université de Paris, Paris, France
| | - Mathieu Jozwiak
- Assistance Publique-Hôpitaux de Paris, Service de Médecine Intensive Réanimation, Hôpitaux Universitaires Paris-Centre, Hôpital Cochin, Paris, France
- Université de Paris, Paris, France
- Equipe 2 CARRES, UR2CA-Unité de Recherche Clinique Côte d'Azur, Université Côte d'Azur UCA, Nice, France
| |
Collapse
|
50
|
The physiological underpinnings of life-saving respiratory support. Intensive Care Med 2022; 48:1274-1286. [PMID: 35690953 PMCID: PMC9188674 DOI: 10.1007/s00134-022-06749-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 05/16/2022] [Indexed: 02/04/2023]
Abstract
Treatment of respiratory failure has improved dramatically since the polio epidemic in the 1950s with the use of invasive techniques for respiratory support: mechanical ventilation and extracorporeal respiratory support. However, respiratory support is only a supportive therapy, designed to "buy time" while the disease causing respiratory failure abates. It ensures viable gas exchange and prevents cardiorespiratory collapse in the context of excessive loads. Because the use of invasive modalities of respiratory support is also associated with substantial harm, it remains the responsibility of the clinician to minimize such hazards. Direct iatrogenic consequences of mechanical ventilation include the risk to the lung (ventilator-induced lung injury) and the diaphragm (ventilator-induced diaphragm dysfunction and other forms of myotrauma). Adverse consequences on hemodynamics can also be significant. Indirect consequences (e.g., immobilization, sleep disruption) can have devastating long-term effects. Increasing awareness and understanding of these mechanisms of injury has led to a change in the philosophy of care with a shift from aiming to normalize gases toward minimizing harm. Lung (and more recently also diaphragm) protective ventilation strategies include the use of extracorporeal respiratory support when the risk of ventilation becomes excessive. This review provides an overview of the historical background of respiratory support, pathophysiology of respiratory failure and rationale for respiratory support, iatrogenic consequences from mechanical ventilation, specifics of the implementation of mechanical ventilation, and role of extracorporeal respiratory support. It highlights the need for appropriate monitoring to estimate risks and to individualize ventilation and sedation to provide safe respiratory support to each patient.
Collapse
|