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Qian Z, He H, Wang Y, Geng S, Li Y, Yuan X, Zhang R, Yang Y, Qiu H, Liu S, Liu L. Evaluation of CO 2 removal rate of ECCO 2R for a renal replacement therapy platform in an experimental setting. Artif Organs 2024; 48:586-594. [PMID: 38304926 DOI: 10.1111/aor.14718] [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: 08/22/2023] [Revised: 01/04/2024] [Accepted: 01/12/2024] [Indexed: 02/03/2024]
Abstract
BACKGROUND A critical parameter of extracorporeal CO2 removal (ECCO2R) applications is the CO2 removal rate (VCO2). Low-flow venovenous extracorporeal support with large-size membrane lung remains undefined. This study aimed to evaluate the VCO2 of a low-flow ECCO2R with large-size membrane lung using a renal replacement therapy platform in an experimental animal model. METHODS Twelve healthy pigs were placed under mechanical ventilation and connected to an ECCO2R-CRRT system (surface area = 1.8 m2; OMNIset®, BBraun, Germany). Respiratory settings were reduced to induce two degrees of hypercapnia. VCO2 was recorded under different combinations of PaCO2 (50-69 or 70-89 mm Hg), extracorporeal blood flow (ECBF; 200 or 350 mL/min), and gas flow (4, 6, or 10 L/min). RESULTS VCO2 increased with ECBF at all three gas flow rates. In severe hypercapnia, the increase in sweep gas flow from 4 to 10 L/min increased VCO2 from 86.38 ± 7.08 to 96.50 ± 8.71 mL/min at an ECBF of 350 mL/min, whereas at ECBF of 200 mL/min, any increase was less effective. But in mild hypercapnia, the increase in sweep gas flow result in significantly increased VCO2 at two ECBF. VCO2 increased with PaCO2 from 50-69 to 70-89 mm Hg at an ECBF of 350 mL/min, but not at ECBF of 200 mL/min. Post-membrane lung PCO2 levels were similar for different levels of premembrane lung PCO2 (p = 0.08), highlighting the gas exchange diffusion efficacy of the membrane lung in gas exchange diffusion. In severe hypercapnia, the reduction of PaCO2 elevated from 11.5% to 19.6% with ECBF increase only at a high gas flow of 10 L/min (p < 0.05) and increase of gas flow significantly reduced PaCO2 only at a high ECBF of 350 mL/min (p < 0.05). CONCLUSIONS Low-flow venovenous extracorporeal ECCO2R-CRRT with large-size membrane lung is more efficient with the increase of ECBF, sweep gas flow rate, and the degree of hypercapnia. The influence of sweep gas flow on VCO2 depends on the ECBF and degree of hypercapnia. Higher ECBF and gas flow should be chosen to reverse severe hypercapnia.
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Affiliation(s)
- Zhicheng Qian
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China
- Department of Critical Care Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Hao He
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China
- Department of Critical Care Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yuxuan Wang
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Shike Geng
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Yang Li
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Xueyan Yuan
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Rui Zhang
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Yi Yang
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Haibo Qiu
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Songqiao Liu
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China
- Nanjing Lishui People's Hospital, Zhongda Hospital Lishui Branch, Southeast University, Nanjing, Jiangsu, China
| | - Ling Liu
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China
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Smadja DM, Chocron R, Rivet N, Ortuno S, Guerin CL, Diehl JL. Platelet Activation and Severe Bleeding During Extracorporeal Carbon Dioxide Removal in Chronic Obstructive Pulmonary Disease Patients. ASAIO J 2024:00002480-990000000-00485. [PMID: 38753545 DOI: 10.1097/mat.0000000000002241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024] Open
Affiliation(s)
- David M Smadja
- From the Innovative Therapies in Haemostasis, INSERM UMR-S1140 Department, Paris University, Paris, France
- Hematology Department, Georges Pompidou European Hospital, Paris, France
| | - Richard Chocron
- Emergency Department, Georges Pompidou European Hospital, Paris, France
- Paris Centre de Recherche Cardiovasculaire, INSERM UMR-S 970 Department, Paris University, Paris, France
| | - Nadia Rivet
- From the Innovative Therapies in Haemostasis, INSERM UMR-S1140 Department, Paris University, Paris, France
- Hematology Department, Georges Pompidou European Hospital, Paris, France
| | - Sofia Ortuno
- Medical Intensive Care Department, Georges Pompidou European Hospital, Paris, France
| | - Coralie L Guerin
- From the Innovative Therapies in Haemostasis, INSERM UMR-S1140 Department, Paris University, Paris, France
- Flow Cytometry Department, Curie Institute, Paris, France
| | - Jean-Luc Diehl
- From the Innovative Therapies in Haemostasis, INSERM UMR-S1140 Department, Paris University, Paris, France
- Medical Intensive Care Department, Georges Pompidou European Hospital, Paris, France
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3
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Pellegrini M, Del Sorbo L, Ranieri VM. Finding the optimal tidal volume in acute respiratory distress syndrome. Intensive Care Med 2024:10.1007/s00134-024-07440-5. [PMID: 38740616 DOI: 10.1007/s00134-024-07440-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 04/06/2024] [Indexed: 05/16/2024]
Affiliation(s)
- Mariangela Pellegrini
- Anesthesia, Operation and Intensive Care Medicine, Uppsala University Hospital, Uppsala, Sweden.
- Hedenstierna Laboratory, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden.
| | - Lorenzo Del Sorbo
- Interdepartmental Division of Critical Care Medicine, Toronto General Hospital, University of Toronto, Toronto, ON, Canada
| | - V Marco Ranieri
- Dipartimento di Medicina di Precisione e Rigenerativa e Area Jonica (DiMePre-J) Sezione di Anestesiologia e Rianimazione, Università degli Studi di Bari "Aldo Moro", Ospedale Policlinico, Bari, Italy
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4
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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.
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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.
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5
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Fox S, Mehkri O, Latifi M, Krishnan S, Dill T, Duggal A. Using a Low-Flow Extracorporeal Carbon Dioxide Removal (ECCO 2 R) System in the Management of Refractory Status Asthmaticus: A Case Series. ASAIO J 2024; 70:e70-e74. [PMID: 37788483 DOI: 10.1097/mat.0000000000002064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023] Open
Abstract
Rescue treatments for status asthmaticus remain limited. Current literature has mainly focused on using extracorporeal membrane oxygenation (ECMO) as a primary modality of care for these patients. Low-flow extracorporeal CO 2 removal (ECCO 2 R) systems are an attractive option to improve refractory hypercapnic respiratory acidosis because of status asthmaticus. This is a retrospective case series that describes the feasibility and efficacy of the use of a low-flow ECCO 2 R device, the Hemolung Respiratory Assist System, in patients with refractory hypercapnic respiratory failure because of status asthmaticus. Eight patients were treated with the Hemolung Respiratory Assist System in eight separate locations globally. Seven (88%) of the patients survived to discharge in this case series. Both CO 2 and pH resolution were seen in 6 hours. None of the ECCO 2 R runs were stopped because of mechanical- or device-related complications. One patient necessitated transition to ECMO. Low-flow ECCO 2 R systems is an effective option for resolution of refractory hypercapnia in status asthmaticus. Use of these systems are also associated with a survival rate of close to 90% in patients with status asthmaticus.
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Affiliation(s)
- Steven Fox
- From the Department of Pulmonary, Allergy, and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Omar Mehkri
- Department of Critical Care, Cleveland Clinic, Cleveland, Ohio
| | - Mani Latifi
- Department of Critical Care, Cleveland Clinic, Cleveland, Ohio
| | - Sudhir Krishnan
- Department of Critical Care, Cleveland Clinic, Cleveland, Ohio
| | - Tracey Dill
- Clinical Operations, ALung Technologies Inc., Pittsburgh, Pennsylvania
| | - Abhijit Duggal
- Department of Critical Care, Cleveland Clinic, Cleveland, Ohio
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Stommel AM, Herkner H, Kienbacher CL, Wildner B, Hermann A, Staudinger T. Effects of extracorporeal CO 2 removal on gas exchange and ventilator settings: a systematic review and meta-analysis. Crit Care 2024; 28:146. [PMID: 38693569 PMCID: PMC11061932 DOI: 10.1186/s13054-024-04927-x] [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: 01/14/2024] [Accepted: 04/21/2024] [Indexed: 05/03/2024] Open
Abstract
PURPOSE A systematic review and meta-analysis to evaluate the impact of extracorporeal carbon dioxide removal (ECCO2R) on gas exchange and respiratory settings in critically ill adults with respiratory failure. METHODS We conducted a comprehensive database search, including observational studies and randomized controlled trials (RCTs) from January 2000 to March 2022, targeting adult ICU patients undergoing ECCO2R. Primary outcomes were changes in gas exchange and ventilator settings 24 h after ECCO2R initiation, estimated as mean of differences, or proportions for adverse events (AEs); with subgroup analyses for disease indication and technology. Across RCTs, we assessed mortality, length of stay, ventilation days, and AEs as mean differences or odds ratios. RESULTS A total of 49 studies encompassing 1672 patients were included. ECCO2R was associated with a significant decrease in PaCO2, plateau pressure, and tidal volume and an increase in pH across all patient groups, at an overall 19% adverse event rate. In ARDS and lung transplant patients, the PaO2/FiO2 ratio increased significantly while ventilator settings were variable. "Higher extraction" systems reduced PaCO2 and respiratory rate more efficiently. The three available RCTs did not demonstrate an effect on mortality, but a significantly longer ICU and hospital stay associated with ECCO2R. CONCLUSIONS ECCO2R effectively reduces PaCO2 and acidosis allowing for less invasive ventilation. "Higher extraction" systems may be more efficient to achieve this goal. However, as RCTs have not shown a mortality benefit but increase AEs, ECCO2R's effects on clinical outcome remain unclear. Future studies should target patient groups that may benefit from ECCO2R. PROSPERO Registration No: CRD 42020154110 (on January 24, 2021).
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Affiliation(s)
- Alexandra-Maria Stommel
- Department of Emergency Medicine, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Harald Herkner
- Department of Emergency Medicine, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.
| | - Calvin Lukas Kienbacher
- Department of Emergency Medicine, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Brigitte Wildner
- University Library, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Alexander Hermann
- Department of Medicine I, Intensive Care Unit 13i2, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Thomas Staudinger
- Department of Medicine I, Intensive Care Unit 13i2, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
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Pequignot B, Combes A, Lescroart M, Levy B, Koszutski M. Contribution of electrical impedance tomography to personalize positive end-expiratory pressure under ECCO 2R. Crit Care 2024; 28:124. [PMID: 38627745 PMCID: PMC11022412 DOI: 10.1186/s13054-024-04908-0] [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: 02/06/2024] [Accepted: 04/11/2024] [Indexed: 04/19/2024] Open
Abstract
Extracorporeal Carbon Dioxide Removal (ECCO2R) is used in acute respiratory distress syndrome (ARDS) patients to facilitate lung-protective ventilatory strategies. Electrical Impedance Tomography (EIT) allows individual, non-invasive, real-time, bedside, radiation-free imaging of the lungs, providing global and regional dynamic lung analyses. To provide new insights for future ECCO2R research in ARDS, we propose a potential application of EIT to personalize End-Expiratory Pressure (PEEP) following each reduction in tidal volume (VT), as demonstrated in an illustrative case. A 72-year-old male with COVID-19 was admitted to the ICU for moderate ARDS. Monitoring with EIT was started to determine the optimal PEEP value (PEEPEIT), defined as the intersection of the collapse and overdistention curves, after each reduction in VT during ECCO2R. The identified PEEPEIT values were notably low (< 10 cmH2O). The decrease in VT associated with PEEPEIT levels resulted in improved lung compliance, reduced driving pressure and a more uniform ventilation pattern. Despite current Randomized Controlled Trials showing that ultra-protective ventilation with ECCO2R does not improve survival, the applicability of universal ultra-protective ventilation settings for all patients remains a subject of debate. Inappropriately set PEEP levels can lead to alveolar collapse or overdistension, potentially negating the benefits of VT reduction. EIT facilitates real-time monitoring of derecruitment associated with VT reduction, guiding physicians in determining the optimal PEEP value after each decrease in tidal volume. This original description of using EIT under ECCO2R to adjust PEEP at a level compromising between recruitability and overdistention could be a crucial element for future research on ECCO2R.
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Affiliation(s)
- Benjamin Pequignot
- Service de Médecine Intensive et Réanimation, Université de Lorraine, Hôpital Brabois, CHRU Nancy, 54500, Vandoeuvre Les Nancy, France.
- Faculté de Médecine de Nancy, Université de Lorraine, INSERM UMR_S1116, Vandœuvre-Lès-Nancy, France.
| | - Alain Combes
- Institute of Cardiometabolism and Nutrition, Sorbonne Université, INSERM, UMRS_1166-ICAN, 47, Boulevard de L'Hôpital, 75013, Paris, France
- Service de Médecine Intensive-Réanimation, Institut de Cardiologie, APHP Hôpital Pitié-Salpêtrière, 75013, Paris, France
| | - Mickael Lescroart
- Service de Médecine Intensive et Réanimation, Université de Lorraine, Hôpital Brabois, CHRU Nancy, 54500, Vandoeuvre Les Nancy, France
- Faculté de Médecine de Nancy, Université de Lorraine, INSERM UMR_S1116, Vandœuvre-Lès-Nancy, France
| | - Bruno Levy
- Service de Médecine Intensive et Réanimation, Université de Lorraine, Hôpital Brabois, CHRU Nancy, 54500, Vandoeuvre Les Nancy, France
- Faculté de Médecine de Nancy, Université de Lorraine, INSERM UMR_S1116, Vandœuvre-Lès-Nancy, France
| | - Matthieu Koszutski
- Service de Médecine Intensive et Réanimation, Université de Lorraine, Hôpital Brabois, CHRU Nancy, 54500, Vandoeuvre Les Nancy, France
- Faculté de Médecine de Nancy, Université de Lorraine, INSERM UMR_S1116, Vandœuvre-Lès-Nancy, France
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Le Pape S, Joly F, Arrivé F, Frat JP, Rodriguez M, Joos M, Marchasson L, Wairy M, Thille AW, Coudroy R. Factors associated with decreased compliance after on-site extracorporeal membrane oxygenation cannulation for acute respiratory distress syndrome: A retrospective, observational cohort study. JOURNAL OF INTENSIVE MEDICINE 2024; 4:194-201. [PMID: 38681786 PMCID: PMC11043634 DOI: 10.1016/j.jointm.2023.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/11/2023] [Accepted: 09/26/2023] [Indexed: 05/01/2024]
Abstract
Background Extracorporeal membrane oxygenation (ECMO) for acute respiratory distress syndrome (ARDS) is systematically associated with decreased respiratory system compliance (CRS). It remains unclear whether transportation to the referral ECMO center, changes in ventilatory mode or settings to achieve ultra-protective ventilation, or the natural evolution of ARDS drives this change in respiratory mechanics. Herein, we assessed the precise moment when CRS decreases after ECMO cannulation and identified factors associated with decreased CRS. Methods To rule out the effect of transportation and the different modes of ventilation on CRS, we conducted a retrospective, single-center, observational cohort study from January 2013 to May 2020, on 22 patients with severe ARDS requiring on-site ECMO and ventilated in pressure-controlled mode to achieve ultra-protective ventilation. CRS was assessed at different time points ranging from 12 h before ECMO cannulation to 72 h after ECMO cannulation. The primary outcome was the relative change in CRS between 3 h before and 3 h after ECMO cannulation. The secondary outcomes included variables associated with the relative changes in CRS within the first 3 h after ECMO cannulation and the relative changes in CRS at each time point. Results CRS decreased within the first 3 h after ECMO cannulation (-28.3%, 95% confidence interval [CI]: -38.8 to -17.9, P<0.001), while the decrease was mild before and after these first 3 h after ECMO cannulation. To achieve ultra-protective ventilation, respiratory rate decreased in the mean by -13 breaths/min (95% CI: -15 to -11) and driving pressure by -8.3 cmH2O (95% CI: -11.2 to -5.3), resulting in decreased tidal volume by -3.3 mL/kg of predicted body weight (95% CI: -3.9 to -2.6) as compared to before ECMO cannulation (P <0.001 for all). Plateau pressure reduction, driving pressure reduction, and tidal volume reduction were significantly associated with decreased CRS after ECMO cannulation, whereas neither respiratory rate, positive end-expiratory pressure, inspired fraction of oxygen, fluid balance, nor mean airway pressure was associated with decreased CRS. Conclusions Decreased driving pressure resulting in lower tidal volume to achieve ultra-protective ventilation after ECMO cannulation was associated with a marked decrease in CRS in ARDS patients with on-site ECMO cannulation.
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Affiliation(s)
- Sylvain Le Pape
- Centre Hospitalier Universitaire de Poitiers, Service de Médecine Intensive Réanimation, Poitiers, France
| | - Florent Joly
- Centre Hospitalier Universitaire de Poitiers, Service de Médecine Intensive Réanimation, Poitiers, France
| | - François Arrivé
- Centre Hospitalier Universitaire de Poitiers, Service de Médecine Intensive Réanimation, Poitiers, France
| | - Jean-Pierre Frat
- Centre Hospitalier Universitaire de Poitiers, Service de Médecine Intensive Réanimation, Poitiers, France
- INSERM Centre d'Investigation Clinique 1402, IS-ALIVE Research Group, Université de Poitiers, Poitiers, France
| | - Maeva Rodriguez
- Centre Hospitalier Universitaire de Poitiers, Service de Médecine Intensive Réanimation, Poitiers, France
| | - Maïa Joos
- Centre Hospitalier Universitaire de Poitiers, Service de Médecine Intensive Réanimation, Poitiers, France
| | - Laura Marchasson
- Centre Hospitalier Universitaire de Poitiers, Service de Médecine Intensive Réanimation, Poitiers, France
| | - Mathilde Wairy
- Centre Hospitalier Universitaire de Poitiers, Service de Médecine Intensive Réanimation, Poitiers, France
| | - Arnaud W. Thille
- Centre Hospitalier Universitaire de Poitiers, Service de Médecine Intensive Réanimation, Poitiers, France
- INSERM Centre d'Investigation Clinique 1402, IS-ALIVE Research Group, Université de Poitiers, Poitiers, France
| | - Rémi Coudroy
- Centre Hospitalier Universitaire de Poitiers, Service de Médecine Intensive Réanimation, Poitiers, France
- INSERM Centre d'Investigation Clinique 1402, IS-ALIVE Research Group, Université de Poitiers, Poitiers, France
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Barbič B, Bianchi C, Madotto F, Sklar MC, Karagiannidis C, Fan E, Brochard L. The Failure of Extracorporeal Carbon Dioxide Removal May Be a Failure of Technology. Am J Respir Crit Care Med 2024; 209:884-887. [PMID: 38190699 DOI: 10.1164/rccm.202309-1628le] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 01/03/2024] [Indexed: 01/10/2024] Open
Affiliation(s)
- Beatrice Barbič
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, Unity Health Toronto, Toronto, Ontario, Canada
- Interdepartmental Division of Critical Care Medicine and
- Scuola di Specializzazione in Anestesia, Terapia Intensiva e del Dolore, Università degli Studi di Milano-Bicocca, Milan, Italy
| | - Cecilia Bianchi
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, Unity Health Toronto, Toronto, Ontario, Canada
- Interdepartmental Division of Critical Care Medicine and
- Scuola di Specializzazione in Anestesia, Terapia Intensiva e del Dolore, Università degli Studi di Milano, Milan, Italy
| | - Fabiana Madotto
- Dipartimento Area Emergenza Urgenza, Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Milan, Italy
| | - Michael C Sklar
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, Unity Health Toronto, Toronto, Ontario, Canada
- Interdepartmental Division of Critical Care Medicine and
| | | | - Eddy Fan
- Interdepartmental Division of Critical Care Medicine and
- Institute of Health Policy, Management and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Department of Medicine, Sinai Health System and University Health Network, Toronto, Ontario, Canada; and
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Laurent Brochard
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, Unity Health Toronto, Toronto, Ontario, Canada
- Interdepartmental Division of Critical Care Medicine and
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Greendyk R, Kanade R, Parekh M, Abrams D, Lemaitre P, Agerstrand C. Respiratory extracorporeal membrane oxygenation : From rescue therapy to standard tool for treatment of acute respiratory distress syndrome? Med Klin Intensivmed Notfmed 2024:10.1007/s00063-024-01118-y. [PMID: 38456999 DOI: 10.1007/s00063-024-01118-y] [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: 01/08/2024] [Accepted: 02/01/2024] [Indexed: 03/09/2024]
Abstract
BACKGROUND The use of extracorporeal membrane oxygenation (ECMO) for patients with acute respiratory distress syndrome (ARDS) has increased substantially. With modern trials supporting its efficacy, ECMO has become an important tool in the management of severe ARDS. OBJECTIVES The objectives of this paper are to discuss ECMO physiology and configurations used for patients with ARDS, review evidence supporting the use of ECMO for ARDS, and discuss aspects of management during ECMO. CONCLUSION Current evidence supports the use of ECMO, combined with an ultra-lung-protective approach to mechanical ventilation, in patients with ARDS who have refractory hypoxemia or hypercapnia with severe respiratory acidosis. Furthermore, data suggest that center volume and experience are important factors in the care of patients receiving ECMO. The use of extracorporeal technologies in expanded patient populations and the optimal management of patients during ECMO remain areas of investigation. This article is freely available.
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Affiliation(s)
- Richard Greendyk
- Division of Pulmonary, Allergy and Critical Care, Columbia University College of Physicians and Surgeons, 622 W 168th St, PH 8E, 101, 10032, New York, NY, USA
| | - Rahul Kanade
- Division of Thoracic Surgery, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - Madhavi Parekh
- Division of Pulmonary, Allergy and Critical Care, Columbia University College of Physicians and Surgeons, 622 W 168th St, PH 8E, 101, 10032, New York, NY, USA
| | - Darryl Abrams
- Division of Pulmonary, Allergy and Critical Care, Columbia University College of Physicians and Surgeons, 622 W 168th St, PH 8E, 101, 10032, New York, NY, USA
| | - Philippe Lemaitre
- Division of Thoracic Surgery, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - Cara Agerstrand
- Division of Pulmonary, Allergy and Critical Care, Columbia University College of Physicians and Surgeons, 622 W 168th St, PH 8E, 101, 10032, New York, NY, USA.
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11
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Piquilloud L. Extracorporeal Carbon Dioxide Removal in Chronic Obstructive Pulmonary Disease: It Depends on the Objective! Am J Respir Crit Care Med 2024; 209:472-473. [PMID: 38285549 PMCID: PMC10919107 DOI: 10.1164/rccm.202401-0176ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 01/25/2024] [Indexed: 01/31/2024] Open
Affiliation(s)
- Lise Piquilloud
- Adult Intensive Care Unit University Hospital of Lausanne and Lausanne University Lausanne, Switzerland
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12
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Duggal A, Conrad SA, Barrett NA, Saad M, Cheema T, Pannu S, Romero RS, Brochard L, Nava S, Ranieri VM, May A, Brodie D, Hill NS. Extracorporeal Carbon Dioxide Removal to Avoid Invasive Ventilation During Exacerbations of Chronic Obstructive Pulmonary Disease: VENT-AVOID Trial - A Randomized Clinical Trial. Am J Respir Crit Care Med 2024; 209:529-542. [PMID: 38261630 DOI: 10.1164/rccm.202311-2060oc] [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: 11/10/2023] [Accepted: 01/23/2024] [Indexed: 01/25/2024] Open
Abstract
Rationale: It is unclear whether extracorporeal CO2 removal (ECCO2R) can reduce the rate of intubation or the total time on invasive mechanical ventilation (IMV) in adults experiencing an exacerbation of chronic obstructive pulmonary disease (COPD). Objectives: To determine whether ECCO2R increases the number of ventilator-free days within the first 5 days postrandomization (VFD-5) in exacerbation of COPD in patients who are either failing noninvasive ventilation (NIV) or who are failing to wean from IMV. Methods: This randomized clinical trial was conducted in 41 U.S. institutions (2018-2022) (ClinicalTrials.gov ID: NCT03255057). Subjects were randomized to receive either standard care with venovenous ECCO2R (NIV stratum: n = 26; IMV stratum: n = 32) or standard care alone (NIV stratum: n = 22; IMV stratum: n = 33). Measurements and Main Results: The trial was stopped early because of slow enrollment and enrolled 113 subjects of the planned sample size of 180. There was no significant difference in the median VFD-5 between the arms controlled by strata (P = 0.36). In the NIV stratum, the median VFD-5 for both arms was 5 days (median shift = 0.0; 95% confidence interval [CI]: 0.0-0.0). In the IMV stratum, the median VFD-5 in the standard care and ECCO2R arms were 0.25 and 2 days, respectively; median shift = 0.00 (95% confidence interval: 0.00-1.25). In the NIV stratum, all-cause in-hospital mortality was significantly higher in the ECCO2R arm (22% vs. 0%, P = 0.02) with no difference in the IMV stratum (17% vs. 15%, P = 0.73). Conclusions: In subjects with exacerbation of COPD, the use of ECCO2R compared with standard care did not improve VFD-5. Clinical trial registered with www.clinicaltrials.gov (NCT03255057).
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Affiliation(s)
- Abhijit Duggal
- Department of Critical Care, Respiratory Institute, Cleveland Clinic, Cleveland, Ohio
| | - Steven A Conrad
- Department of Medicine, Louisiana State University Health Sciences Center, Shreveport, Louisiana
| | - Nicholas A Barrett
- Department of Critical Care, Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom
- Centre for Human & Applied Physiological Sciences (CHAPS), School of Basic & Medical Biosciences, Faculty of Life Sciences & Medicine, King's College London, London, United Kingdom
| | - Mohamed Saad
- Division of Pulmonary, Critical Care and Sleep Disorders Medicine, University of Louisville School of Medicine, Louisville, Kentucky
| | - Tariq Cheema
- Division of Pulmonary Critical Care, Allegheny General Hospital, Allegheny Health Network, Pittsburgh, Pennsylvania
| | - Sonal Pannu
- Division of Pulmonary Critical Care and Sleep, Department of Medicine, Ohio State University, Columbus, Ohio
| | - Ramiro Saavedra Romero
- Department of Critical Care Medicine, Abbott Northwestern Hospital, Minneapolis, Minnesota
| | - Laurent Brochard
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Stefano Nava
- Respiratory and Critical Care Unit, IRCCS Azienda Hospital, University of Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
| | - V Marco Ranieri
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
- Anesthesia and Intensive Care Medicine, IRCCS Azienda Hospital, University of Bologna, Bologna, Italy
| | - Alexandra May
- ALung Technologies, LivaNova PLC, Pittsburgh, Pennsylvania
| | - Daniel Brodie
- Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, Maryland; and
| | - Nicholas S Hill
- Division of Pulmonary, Critical Care, and Sleep Medicine, Tufts Medical Center, Boston, Massachusetts
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13
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Bianquis C, Leiva Agüero S, Cantero C, Golfe Bonmatí A, González J, Hu X, Lacoste-Palasset T, Livesey A, Guillamat Prats R, Salai G, Sykes DL, Toland S, van Zeller C, Viegas P, Vieira AL, Zaneli S, Karagiannidis C, Fisser C. ERS International Congress 2023: highlights from the Respiratory Intensive Care Assembly. ERJ Open Res 2024; 10:00886-2023. [PMID: 38651090 PMCID: PMC11033729 DOI: 10.1183/23120541.00886-2023] [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: 11/23/2023] [Accepted: 11/28/2023] [Indexed: 04/25/2024] Open
Abstract
Early career members of Assembly 2 (Respiratory Intensive Care) attended the 2023 European Respiratory Society International Congress in Milan, Italy. The conference covered acute and chronic respiratory failure. Sessions of interest to our assembly members and to those interested in respiratory critical care are summarised in this article and include the latest updates in respiratory intensive care, in particular acute respiratory distress syndrome and mechanical ventilation.
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Affiliation(s)
- Clara Bianquis
- Sorbonne Université, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
| | - Sebastian Leiva Agüero
- Academic unit of the University Institute of Health Science H.A. Barceló Foundation, La Rioja, Argentina
| | - Chloé Cantero
- APHP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, Site Pitié-Salpêtrière, Service de Pneumologie, Paris, France
| | | | - Jessica González
- Translational Research in Respiratory Medicine, University Hospital Arnau de Vilanova and Santa Maria, IRBLleida, Lleida, Spain
- CIBER of Respiratory Diseases (CIBERES), Institute of Health Carlos III, Madrid, Spain
| | - Xinxin Hu
- St Vincent's Health Network Sydney, Sydney, Australia
- University of Sydney, Sydney, Australia
| | - Thomas Lacoste-Palasset
- Assistance Publique Hôpitaux de Paris, Service de Pneumologie et Soins Intensifs Respiratoires, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin Bicêtre, France
- Université Paris–Saclay, Faculté de Médecine, Le Kremlin Bicêtre, France
| | - Alana Livesey
- University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | | | - Grgur Salai
- Department of Pulmonology, University Hospital Dubrava, Zagreb, Croatia
| | | | - Sile Toland
- Department of Medicine, Letterkenny University Hospital, Donegal, Ireland
| | - Cristiano van Zeller
- Department of Respiratory Medicine, King's College Hospital NHS Foundation Trust, London, UK
| | - Pedro Viegas
- Departamento de Pneumonologia, Centro Hospitalar de Vila Nova de Gaia/Espinho, Oporto, Portugal
| | | | - Stavroula Zaneli
- 1st Respiratory Department, Medical School, National and Kapodistrian University of Athens, “Sotiria” Chest Hospital, Athens, Greece
| | - Christian Karagiannidis
- Department of Pneumology and Critical Care Medicine, ARDS and ECMO Centre, Cologne-Merheim Hospital, Kliniken der Stadt Köln gGmbH, Witten/Herdecke University Hospital, Cologne, Germany
| | - Christoph Fisser
- Department of Internal Medicine II, University Medical Centre Regensburg, Regensburg, Germany
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14
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Deniel G, Dhelft F, Lancelot S, Orkisz M, Roux E, Mouton W, Benzerdjeb N, Richard JC, Bitker L. Pulmonary inflammation decreases with ultra-protective ventilation in experimental ARDS under VV-ECMO: a positron emission tomography study. Front Med (Lausanne) 2024; 11:1338602. [PMID: 38444415 PMCID: PMC10912585 DOI: 10.3389/fmed.2024.1338602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 01/24/2024] [Indexed: 03/07/2024] Open
Abstract
Background Experimentally, ultra-protective ventilation (UPV, tidal volumes [VT] < 4 mL.kg-1) strategies in conjunction with veno-venous extracorporeal membrane oxygenation (VV-ECMO) are associated with lesser ventilator-induced lung injuries (VILI) during acute respiratory distress syndrome (ARDS). However, whether these strategies reduce lung inflammation more effectively than protective ventilation (PV) remains unclear. We aimed to demonstrate that a UPV strategy decreases acute lung inflammation in comparison with PV in an experimental swine model of ARDS. Methods ARDS was induced by tracheal instillation of chlorhydric acid in sedated and paralyzed animals under mechanical ventilation. Animals were randomized to receive either UPV (VT 1 mL.kg-1, positive end-expiration pressure [PEEP] set to obtain plateau pressure between 20 and 25 cmH2O and respiratory rate [RR] at 5 min-1 under VV-ECMO) or PV (VT 6 mL.kg-1, PEEP set to obtain plateau pressure between 28 and 30 cmH2O and RR at 25 min-1) during 4 h. After 4 h, a positron emission tomography with [11C](R)-PK11195 (ligand to TSPO-bearing macrophages) injection was realized, coupled with quantitative computerized tomography (CT). Pharmacokinetic multicompartment models were used to quantify regional [11C](R)-PK11195 lung uptake. [11C](R)-PK11195 lung uptake and CT-derived respiratory variables were studied regionally across eight lung regions distributed along the antero-posterior axis. Results Five pigs were randomized to each study group. Arterial O2 partial pressure to inspired O2 fraction were not significantly different between study groups after experimental ARDS induction (75 [68-80] mmHg in a PV group vs. 87 [69-133] mmHg in a UPV group, p = 0.20). Compared to PV animals, UPV animals exhibited a significant decrease in the regional non-aerated compartment in the posterior lung levels, in mechanical power, and in regional dynamic strain and no statistical difference in tidal hyperinflation after 4 h. UPV animals had a significantly lower [11C](R)-PK11195 uptake, compared to PV animals (non-displaceable binding potential 0.35 [IQR, 0.20-0.59] in UPV animals and 1.01 [IQR, 0.75-1.59] in PV animals, p = 0.01). Regional [11C](R)-PK11195 uptake was independently associated with the interaction of regional tidal hyperinflation and regional lung compliance. Conclusion In an experimental model of ARDS, 4 h of UPV strategy significantly decreased lung inflammation, in relation to the control of VT-derived determinants of VILI.
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Affiliation(s)
- Guillaume Deniel
- Service de Médecine Intensive-Réanimation, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
- Univ Lyon, Université Claude Bernard Lyon 1, INSA-Lyon, CNRS, Inserm, CREATIS UMR, Villeurbanne, France
| | - François Dhelft
- Service de Médecine Intensive-Réanimation, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
- Université de Lyon, Université LYON 1, Lyon, France
| | - Sophie Lancelot
- Université de Lyon, Université LYON 1, Lyon, France
- CERMEP – Imagerie du Vivant, Lyon, France
- Hospices Civils de Lyon, Lyon, France
| | - Maciej Orkisz
- Univ Lyon, Université Claude Bernard Lyon 1, INSA-Lyon, CNRS, Inserm, CREATIS UMR, Villeurbanne, France
| | - Emmanuel Roux
- Univ Lyon, Université Claude Bernard Lyon 1, INSA-Lyon, CNRS, Inserm, CREATIS UMR, Villeurbanne, France
| | - William Mouton
- Laboratoire Commun de Recherche Hospices Civils de Lyon/bioMérieux, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Lyon, France
| | - Nazim Benzerdjeb
- Université de Lyon, Université LYON 1, Lyon, France
- Centre d’Anatomie et Cytologie Pathologique, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Lyon, France
| | - Jean-Christophe Richard
- Service de Médecine Intensive-Réanimation, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
- Univ Lyon, Université Claude Bernard Lyon 1, INSA-Lyon, CNRS, Inserm, CREATIS UMR, Villeurbanne, France
- Université de Lyon, Université LYON 1, Lyon, France
| | - Laurent Bitker
- Service de Médecine Intensive-Réanimation, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
- Univ Lyon, Université Claude Bernard Lyon 1, INSA-Lyon, CNRS, Inserm, CREATIS UMR, Villeurbanne, France
- Université de Lyon, Université LYON 1, Lyon, France
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15
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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.
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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
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16
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Rubulotta F, Blanch Torra L, Naidoo KD, Aboumarie HS, Mathivha LR, Asiri AY, Sarlabous Uranga L, Soussi S. Mechanical Ventilation, Past, Present, and Future. Anesth Analg 2024; 138:308-325. [PMID: 38215710 DOI: 10.1213/ane.0000000000006701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2024]
Abstract
Mechanical ventilation (MV) has played a crucial role in the medical field, particularly in anesthesia and in critical care medicine (CCM) settings. MV has evolved significantly since its inception over 70 years ago and the future promises even more advanced technology. In the past, ventilation was provided manually, intermittently, and it was primarily used for resuscitation or as a last resort for patients with severe respiratory or cardiovascular failure. The earliest MV machines for prolonged ventilatory support and oxygenation were large and cumbersome. They required a significant amount of skills and expertise to operate. These early devices had limited capabilities, battery, power, safety features, alarms, and therefore these often caused harm to patients. Moreover, the physiology of MV was modified when mechanical ventilators moved from negative pressure to positive pressure mechanisms. Monitoring systems were also very limited and therefore the risks related to MV support were difficult to quantify, predict and timely detect for individual patients who were necessarily young with few comorbidities. Technology and devices designed to use tracheostomies versus endotracheal intubation evolved in the last century too and these are currently much more reliable. In the present, positive pressure MV is more sophisticated and widely used for extensive period of time. Modern ventilators use mostly positive pressure systems and are much smaller, more portable than their predecessors, and they are much easier to operate. They can also be programmed to provide different levels of support based on evolving physiological concepts allowing lung-protective ventilation. Monitoring systems are more sophisticated and knowledge related to the physiology of MV is improved. Patients are also more complex and elderly compared to the past. MV experts are informed about risks related to prolonged or aggressive ventilation modalities and settings. One of the most significant advances in MV has been protective lung ventilation, diaphragm protective ventilation including noninvasive ventilation (NIV). Health care professionals are familiar with the use of MV and in many countries, respiratory therapists have been trained for the exclusive purpose of providing safe and professional respiratory support to critically ill patients. Analgo-sedation drugs and techniques are improved, and more sedative drugs are available and this has an impact on recovery, weaning, and overall patients' outcome. Looking toward the future, MV is likely to continue to evolve and improve alongside monitoring techniques and sedatives. There is increasing precision in monitoring global "patient-ventilator" interactions: structure and analysis (asynchrony, desynchrony, etc). One area of development is the use of artificial intelligence (AI) in ventilator technology. AI can be used to monitor patients in real-time, and it can predict when a patient is likely to experience respiratory distress. This allows medical professionals to intervene before a crisis occurs, improving patient outcomes and reducing the need for emergency intervention. This specific area of development is intended as "personalized ventilation." It involves tailoring the ventilator settings to the individual patient, based on their physiology and the specific condition they are being treated for. This approach has the potential to improve patient outcomes by optimizing ventilation and reducing the risk of harm. In conclusion, MV has come a long way since its inception, and it continues to play a critical role in anesthesia and in CCM settings. Advances in technology have made MV safer, more effective, affordable, and more widely available. As technology continues to improve, more advanced and personalized MV will become available, leading to better patients' outcomes and quality of life for those in need.
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Affiliation(s)
- Francesca Rubulotta
- From the Department of Critical Care Medicine, McGill University, Montreal, Quebec, Canada
| | - Lluis Blanch Torra
- Department of Critical Care, Parc Taulí Hospital Universitari, Institut d'Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autònoma de Barcelona, Sabadell, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Kuban D Naidoo
- Division of Critical Care, University of Witwatersrand, Johannesburg, South Africa
| | - Hatem Soliman Aboumarie
- Department of Anaesthetics, Critical Care and Mechanical Circulatory Support, Harefield Hospital, Royal Brompton and Harefield Hospitals, London, United Kingdom
- School of Cardiovascular and Metabolic Medicine and Sciences, King's College London, London, United Kingdom
| | - Lufuno R Mathivha
- Department of Anaesthetics, Critical Care and Mechanical Circulatory Support, The Chris Hani Baragwanath Academic Hospital, University of the Witwatersrand
| | - Abdulrahman Y Asiri
- Department of Internal Medicine and Critical Care, King Khalid University Medical City, Abha, Saudi Arabia
- Department of Critical Care Medicine, McGill University
| | - Leonardo Sarlabous Uranga
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Sabri Soussi
- Department of Anesthesia and Pain Management, University Health Network - Toronto Western Hospital, University of Toronto, Toronto, Ontario, Canada
- Department of Anesthesiology and Pain Medicine, University of Toronto
- UMR-S 942, Cardiovascular Markers in Stress Conditions (MASCOT), Institut national de la santé et de la recherche médicale (INSERM), Université de Paris Cité, France
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17
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Camporota L, Rose L, Andrews PL, Nieman GF, Habashi NM. Airway pressure release ventilation for lung protection in acute respiratory distress syndrome: an alternative way to recruit the lungs. Curr Opin Crit Care 2024; 30:76-84. [PMID: 38085878 DOI: 10.1097/mcc.0000000000001123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
PURPOSE OF REVIEW Airway pressure release ventilation (APRV) is a modality of ventilation in which high inspiratory continuous positive airway pressure (CPAP) alternates with brief releases. In this review, we will discuss the rationale for APRV as a lung protective strategy and then provide a practical introduction to initiating APRV using the time-controlled adaptive ventilation (TCAV) method. RECENT FINDINGS APRV using the TCAV method uses an extended inspiratory time and brief expiratory release to first stabilize and then gradually recruit collapsed lung (over hours/days), by progressively 'ratcheting' open a small volume of collapsed tissue with each breath. The brief expiratory release acts as a 'brake' preventing newly recruited units from re-collapsing, reversing the main drivers of ventilator-induced lung injury (VILI). The precise timing of each release is based on analysis of expiratory flow and is set to achieve termination of expiratory flow at 75% of the peak expiratory flow. Optimization of the release time reflects the changes in elastance and, therefore, is personalized (i.e. conforms to individual patient pathophysiology), and adaptive (i.e. responds to changes in elastance over time). SUMMARY APRV using the TCAV method is a paradigm shift in protective lung ventilation, which primarily aims to stabilize the lung and gradually reopen collapsed tissue to achieve lung homogeneity eliminating the main mechanistic drivers of VILI.
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Affiliation(s)
- Luigi Camporota
- Department of Critical Care, Guy's & St Thomas' NHS Foundation Trust
- Centre for Human & Applied Physiological Sciences, School of Basic & Medical Biosciences
| | - Louise Rose
- Department of Critical Care, Guy's & St Thomas' NHS Foundation Trust
- Florence Nightingale Faculty of Nursing, Midwifery, and Palliative Care, King's College London, London, UK
| | - Penny L Andrews
- Department of Critical Care, R Adams Cowley Shock Trauma Center, University of Maryland Medical Center, Baltimore, Maryland
| | - Gary F Nieman
- Department of Surgery, Upstate Medical University, Syracuse, New York, USA
| | - Nader M Habashi
- Department of Critical Care, R Adams Cowley Shock Trauma Center, University of Maryland Medical Center, Baltimore, Maryland
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18
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Tonna JE, Boonstra PS, MacLaren G, Paden M, Brodie D, Anders M, Hoskote A, Ramanathan K, Hyslop R, Fanning JJ, Rycus P, Stead C, Barrett NA, Mueller T, Gómez RD, Kapoor PM, Fraser JF, Bartlett RH, Alexander PM, Barbaro RP. Extracorporeal Life Support Organization Registry International Report 2022: 100,000 Survivors. ASAIO J 2024; 70:131-143. [PMID: 38181413 PMCID: PMC10962646 DOI: 10.1097/mat.0000000000002128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2024] Open
Abstract
The Extracorporeal Life Support Organization (ELSO) maintains the world's largest extracorporeal membrane oxygenation (ECMO) registry by volume, center participation, and international scope. This 2022 ELSO Registry Report describes the program characteristics of ECMO centers, processes of ECMO care, and reported outcomes. Neonates (0-28 days), children (29 days-17 years), and adults (≥18 years) supported with ECMO from 2009 through 2022 and reported to the ELSO Registry were included. This report describes adjunctive therapies, support modes, treatments, complications, and survival outcomes. Data are presented descriptively as counts and percent or median and interquartile range (IQR) by year, group, or level. Missing values were excluded before calculating descriptive statistics. Complications are reported per 1,000 ECMO hours. From 2009 to 2022, 154,568 ECMO runs were entered into the ELSO Registry. Seven hundred and eighty centers submitted data during this time (557 in 2022). Since 2009, the median annual number of adult ECMO runs per center per year increased from 4 to 15, whereas for pediatric and neonatal runs, the rate decreased from 12 to 7. Over 50% of patients were transferred to the reporting ECMO center; 20% of these patients were transported with ECMO. The use of prone positioning before respiratory ECMO increased from 15% (2019) to 44% (2021) for adults during the coronavirus disease-2019 (COVID-19) pandemic. Survival to hospital discharge was greatest at 68.5% for neonatal respiratory support and lowest at 29.5% for ECPR delivered to adults. By 2022, the Registry had enrolled its 200,000th ECMO patient and 100,000th patient discharged alive. Since its inception, the ELSO Registry has helped centers measure and compare outcomes across its member centers and strategies of care. Continued growth and development of the Registry will aim to bolster its utility to patients and centers.
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Affiliation(s)
- Joseph E. Tonna
- Division of Cardiothoracic Surgery, Department of Surgery, University of Utah Health, Salt Lake City, Utah
- Department of Emergency Medicine, University of Utah Health, Salt Lake City, Utah
| | - Philip S. Boonstra
- Department of Biostatistics, University of Michigan, Ann Arbor, Michigan
| | - Graeme MacLaren
- Cardiothoracic Intensive Care Unit, National University Hospital, Singapore, Singapore
| | - Matthew Paden
- Department of Surgery, Division of Pediatric Critical Care Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Daniel Brodie
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Marc Anders
- Department of Surgery, Division of Critical Care, Texas Children’s Hospital, Baylor College of Medicine, Houston, Texas
| | - Aparna Hoskote
- Department of Surgery, Heart and Lung Directorate, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
- Department of Surgery, Institute of Cardiovascular Science, University College London, Zayed Centre for Research into Rare Diseases in Children, London, UK
| | - Kollengode Ramanathan
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Surgery, Cardiothoracic Intensive Care Unit, National University Heart Centre, National University Hospital, Singapore, Singapore
| | - Rob Hyslop
- Department of Surgery, Heart Institute, Children’s Hospital Colorado, Aurora, Colorado
| | - Jeffrey J. Fanning
- Department of Pediatrics, Extracorporeal Life Support Program, Medical City Children’s Hospital, Dallas, Texas
| | - Peter Rycus
- Department of Surgery, Extracorporeal Life Support Organization (ELSO), Ann Arbor, Michigan
| | - Christine Stead
- Department of Surgery, Extracorporeal Life Support Organization (ELSO), University of Michigan, Ann Arbor, Michigan
| | - Nicholas A. Barrett
- Department of Critical Care, Guy’s and St Thomas’ NHS Foundation Trust, London, UK
- Department of Surgery, Centre for Human & Applied Physiological Sciences, King’s College London, London, UK
| | - Thomas Mueller
- Intensive Care Medicine, Department of Internal Medicine II, University Hospital Regensburg, Germany
| | - Rene D. Gómez
- Department of Surgery, Terapias Avanzadas de Soporte Cardiopulmonar, Hospitales Tec Salud, Escuela de Medicina ITESM, Monterrey, Mexico
| | - Poonam Malhotra Kapoor
- Department of Cardiac Anaesthesiology and Critical Care, Cardio Thoracic Centre, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - John F. Fraser
- Department of Surgery, University of Queensland, The Prince Charles Hospital, Brisbane, Australia
| | | | - Peta M.A. Alexander
- Department of Cardiology, Boston Children’s Hospital, Boston, Massachusetts
- Department of Pediatrics, Harvard Medical School, Boston, Massachusetts
| | - Ryan P. Barbaro
- Division of Critical Care Medicine, Department of Pediatrics, University of Michigan, Ann Arbor, Michigan
- Department of Surgery, Susan B. Meister Child Health Evaluation and Research Center, University of Michigan, Ann Arbor, Michigan
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19
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Khan BA, Perkins AJ, Khan SH, Unverzagt FW, Lasiter S, Gao S, Wang S, Zarzaur BL, Rahman O, Eltarras A, Qureshi H, Boustani MA. Mobile Critical Care Recovery Program for Survivors of Acute Respiratory Failure: A Randomized Clinical Trial. JAMA Netw Open 2024; 7:e2353158. [PMID: 38289602 PMCID: PMC10828910 DOI: 10.1001/jamanetworkopen.2023.53158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 12/04/2023] [Indexed: 02/01/2024] Open
Abstract
Importance Over 50% of Acute Respiratory Failure (ARF) survivors experience cognitive, physical, and psychological impairments that negatively impact their quality of life (QOL). Objective To evaluate the efficacy of a post-intensive care unit (ICU) program, the Mobile Critical Care Recovery Program (m-CCRP) consisting of a nurse care coordinator supported by an interdisciplinary team, in improving the QOL of ARF survivors. Design, Setting, and Participants This randomized clinical trial with concealed outcome assessments among ARF survivors was conducted from March 1, 2017, to April 30, 2022, with a 12-month follow-up. Patients were admitted to the ICU services of 4 Indiana hospitals (1 community, 1 county, 2 academic), affiliated with the Indiana University School of Medicine. Intervention A 12-month nurse-led collaborative care intervention (m-CCRP) supported by an interdisciplinary group of clinicians (2 intensivists, 1 geriatrician, 1 ICU nurse, and 1 neuropsychologist) was compared with a telephone-based control. The intervention comprised longitudinal symptom monitoring coupled with nurse-delivered care protocols targeting cognition, physical function, personal care, mobility, sleep disturbances, pain, depression, anxiety, agitation or aggression, delusions or hallucinations, stress and physical health, legal and financial needs, and medication adherence. Main Outcomes and Measures The primary outcome was QOL as measured by the 36-item Medical Outcomes Study Short Form Health Survey (SF-36) physical component summary (PCS) and mental component summary (MCS), with scores on each component ranging from 0-100, and higher scores indicating better health status. Results In an intention-to-treat analysis among 466 ARF survivors (mean [SD] age, 56.1 [14.4] years; 250 [53.6%] female; 233 assigned to each group), the m-CCRP intervention for 12 months did not significantly improve the QOL compared with the control group (estimated difference in change from baseline between m-CCRP and control group: 1.61 [95% CI, -1.06 to 4.29] for SF-36 PCS; -2.50 [95% CI, -5.29 to 0.30] for SF-36 MCS. Compared with the control group, the rates of hospitalization were higher in the m-CCRP group (117 [50.2%] vs 95 [40.8%]; P = .04), whereas the 12-month mortality rates were not statistically significantly lower (24 [10.3%] vs 38 [16.3%]; P = .05). Conclusions and Relevance Findings from this randomized clinical trial indicated that a nurse-led 12-month comprehensive interdisciplinary care intervention did not significantly improve the QOL of ARF survivors after ICU hospitalization. These results suggest that further research is needed to identify specific patient groups who could benefit from tailored post-ICU interventions. Trial Registration ClinicalTrials.gov Identifier: NCT03053245.
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Affiliation(s)
- Babar A. Khan
- Department of Medicine, Indiana University School of Medicine, Indianapolis
- Indiana University Center for Aging Research, Indianapolis
- Regenstrief Institute Inc, Indianapolis, Indiana
- Indiana University Center for Health Innovation and Implementation Science, Indiana Clinical and Translational Sciences Institute, Indianapolis
| | - Anthony J. Perkins
- Department of Biostatistics, Indiana University School of Medicine, Indianapolis
| | - Sikandar Hayat Khan
- Department of Medicine, Indiana University School of Medicine, Indianapolis
- Indiana University Center for Aging Research, Indianapolis
- Regenstrief Institute Inc, Indianapolis, Indiana
| | | | - Sue Lasiter
- School of Nursing and Health Sciences, University of Missouri, Kansas City
| | - Sujuan Gao
- Department of Biostatistics, Indiana University School of Medicine, Indianapolis
| | - Sophia Wang
- Department of Psychiatry, Indiana University School of Medicine, Indianapolis
| | - Ben L. Zarzaur
- Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison
| | - Omar Rahman
- Department of Medicine, Indiana University School of Medicine, Indianapolis
| | - Ahmed Eltarras
- Department of Medicine, Indiana University School of Medicine, Indianapolis
| | - Hadi Qureshi
- Indiana University Center for Aging Research, Indianapolis
| | - Malaz A. Boustani
- Department of Medicine, Indiana University School of Medicine, Indianapolis
- Indiana University Center for Aging Research, Indianapolis
- Regenstrief Institute Inc, Indianapolis, Indiana
- Indiana University Center for Health Innovation and Implementation Science, Indiana Clinical and Translational Sciences Institute, Indianapolis
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20
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Dinh K, Akkanti B, Patel M, Hussain R, Basra S, Gregoric ID, Kar B. Use of Subclavian Extracorporeal Carbon Dioxide Removal for COVID-19 Acute Respiratory Distress Syndrome as a Bridge to Lung Transplantation. ASAIO J 2024; 70:e9-e12. [PMID: 37603812 DOI: 10.1097/mat.0000000000002018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2023] Open
Abstract
Severe acute hypercapnia is independently associated with increased adverse effects and intensive care unit mortality in mechanically ventilated patients. During the severe acute respiratory syndrome coronavirus 2 (COVID-19) pandemic, some patients were placed on extracorporeal carbon dioxide removal support when extracorporeal membrane oxygenation (ECMO) support was at capacity or not offered. We present a patient with severe acute respiratory distress syndrome caused by COVID-19 pneumonia, who was supported with Hemolung Respiratory Assist System (ALung Technologies, Inc., LivaNova, Pittsburgh, PA) via the right subclavian vein as a bridge to lung transplantation after venovenous ECMO support. The patient survived and was discharged home.
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Affiliation(s)
- Kha Dinh
- From the University of Texas Health Science Center at Houston, Houston, TX
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21
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McGuigan PJ, Bowcock EM, Barrett NA, Blackwood B, Boyle AJ, Cadamy AJ, Camporota L, Conlon J, Cove ME, Gillies MA, McDowell C, McNamee JJ, O'Kane CM, Puxty A, Sim M, Parsons-Simmonds R, Szakmany T, Young N, Orde S, McAuley DF. The Effect of Lower Tidal Volume Ventilation Facilitated by Extracorporeal Carbon Dioxide Removal Compared With Conventional Lung Protective Ventilation on Cardiac Function. Crit Care Explor 2024; 6:e1028. [PMID: 38213419 PMCID: PMC10783412 DOI: 10.1097/cce.0000000000001028] [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] [Indexed: 01/13/2024] Open
Abstract
OBJECTIVES Lower tidal volume ventilation (targeting 3 mL/kg predicted body weight, PBW) facilitated by extracorporeal carbon dioxide removal (ECCO2R) has been investigated as a potential therapy for acute hypoxemic respiratory failure (AHRF) in the pRotective vEntilation with veno-venouS lung assisT in respiratory failure (REST) trial. We investigated the effect of this strategy on cardiac function, and in particular the right ventricle. DESIGN Substudy of the REST trial. SETTING Nine U.K. ICUs. PATIENTS Patients with AHRF (Pao2/Fio2 < 150 mm Hg [20 kPa]). INTERVENTION Transthoracic echocardiography and N-terminal pro-B-type natriuretic peptide (NT-proBNP) measurements were collected at baseline and postrandomization in patients randomized to ECCO2R or usual care. MEASUREMENTS The primary outcome measures were a difference in tricuspid annular plane systolic excursion (TAPSE) on postrandomization echocardiogram and difference in NT-proBNP postrandomization. RESULTS There were 21 patients included in the echocardiography cohort (ECCO2R, n = 13; usual care, n = 8). Patient characteristics were similar in both groups at baseline. Median (interquartile range) tidal volumes were lower in the ECCO2R group compared with the usual care group postrandomization; 3.6 (3.1-4.2) mL/kg PBW versus 5.2 (4.9-5.7) mL/kg PBW, respectively (p = 0.01). There was no difference in the primary outcome measure of mean (sd) TAPSE in the ECCO2R and usual care groups postrandomization; 21.3 (5.4) mm versus 20.1 (3.2) mm, respectively (p = 0.60). There were 75 patients included in the NT-proBNP cohort (ECCO2R, n = 36; usual care, n = 39). Patient characteristics were similar in both groups at baseline. Median (interquartile range [IQR]) tidal volumes were lower in the ECCO2R group than the usual care group postrandomization; 3.8 (3.3-4.2) mL/kg PBW versus 6.7 (5.8-8.1) mL/kg PBW, respectively (p < 0.0001). There was no difference in median (IQR) NT-proBNP postrandomization; 1121 (241-5370) pg/mL versus 1393 (723-4332) pg/mL in the ECCO2R and usual care groups, respectively (p = 0.30). CONCLUSIONS In patients with AHRF, a reduction in tidal volume facilitated by ECCO2R, did not modify cardiac function.
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Affiliation(s)
- Peter J McGuigan
- Royal Victoria Hospital, Belfast, United Kingdom
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, United Kingdom
| | - Emma M Bowcock
- Nepean Hospital, Sydney, Australia
- University of Sydney, Sydney, Australia
| | - Nicholas A Barrett
- Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
- Centre for Human and Applied Physiological Sciences, King's College London, London, United Kingdom
| | - Bronagh Blackwood
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, United Kingdom
| | - Andrew J Boyle
- Royal Victoria Hospital, Belfast, United Kingdom
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, United Kingdom
| | - Andrew J Cadamy
- Queen Elizabeth University Hospital, Glasgow, United Kingdom
- School of Medicine, Dentistry, and Nursing, University of Glasgow, Glasgow, United Kingdom
| | - Luigi Camporota
- Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
- Centre for Human and Applied Physiological Sciences, King's College London, London, United Kingdom
| | - John Conlon
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, United Kingdom
| | | | | | - Clíona McDowell
- Northern Ireland Clinical Trials Unit, Belfast, United Kingdom
| | | | - Cecilia M O'Kane
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, United Kingdom
| | - Alex Puxty
- Glasgow Royal Infirmary, Glasgow, United Kingdom
| | - Malcolm Sim
- Queen Elizabeth University Hospital, Glasgow, United Kingdom
| | | | - Tamas Szakmany
- Royal Gwent Hospital, Aneurin Bevan University Health Board, Newport, United Kingdom
- Department of Anaesthesia Intensive Care and Pain Medicine, Cardiff University, Cardiff, United Kingdom
| | - Neil Young
- Edinburgh Royal Infirmary, Edinburgh, United Kingdom
| | - Sam Orde
- Nepean Hospital, Sydney, Australia
- University of Sydney, Sydney, Australia
| | - Daniel F McAuley
- Royal Victoria Hospital, Belfast, United Kingdom
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, United Kingdom
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22
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Shin Y, Kim YJ, Jin J, Lee SB, Kim HS, Kim YG. Machine learning model for predicting immediate postoperative desaturation using spirometry signal data. Sci Rep 2023; 13:21881. [PMID: 38072984 PMCID: PMC10711018 DOI: 10.1038/s41598-023-49062-9] [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] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 12/04/2023] [Indexed: 12/18/2023] Open
Abstract
Postoperative desaturation is a common post-surgery pulmonary complication. The real-time prediction of postoperative desaturation can become a preventive measure, and real-time changes in spirometry data can provide valuable information on respiratory mechanics. However, there is a lack of related research, specifically on using spirometry signals as inputs to machine learning (ML) models. We developed an ML model and postoperative desaturation prediction index (DPI) by analyzing intraoperative spirometry signals in patients undergoing laparoscopic surgery. We analyzed spirometry data from patients who underwent laparoscopic, robot-assisted gynecologic, or urologic surgery, identifying postoperative desaturation as a peripheral arterial oxygen saturation level below 95%, despite facial oxygen mask usage. We fitted the ML model on two separate datasets collected during different periods. (Datasets A and B). Dataset A (Normal 133, Desaturation 74) was used for the entire experimental process, including ML model fitting, statistical analysis, and DPI determination. Dataset B (Normal 20, Desaturation 4) was only used for verify the ML model and DPI. Four feature categories-signal property, inter-/intra-position correlation, peak value/interval variability, and demographics-were incorporated into the ML models via filter and wrapper feature selection methods. In experiments, the ML model achieved an adequate predictive capacity for postoperative desaturation, and the performance of the DPI was unbiased.
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Affiliation(s)
- Youmin Shin
- Department of Transdisciplinary Medicine, Seoul National University Hospital, 101 Daehak-Ro, Jongno-Gu, Seoul, 03080, Republic of Korea
- Interdisciplinary Program in Bio-engineering, Seoul National University, Seoul, Republic of Korea
| | - Yoon Jung Kim
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, College of Medicine, Seoul National University, 101 Daehak-Ro, Jongno-Gu, Seoul, 03080, Republic of Korea
| | - Juseong Jin
- Interdisciplinary Program in Bio-engineering, Seoul National University, Seoul, Republic of Korea
- Integrated Major in Innovative Medical Science, Seoul National University, Seoul, Republic of Korea
| | - Seung-Bo Lee
- Department of Medical Informatics, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Hee-Soo Kim
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, College of Medicine, Seoul National University, 101 Daehak-Ro, Jongno-Gu, Seoul, 03080, Republic of Korea.
| | - Young-Gon Kim
- Department of Transdisciplinary Medicine, Seoul National University Hospital, 101 Daehak-Ro, Jongno-Gu, Seoul, 03080, Republic of Korea.
- Department of Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.
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23
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Zhou Z, Li Z, Liu C, Wang F, Zhang L, Fu P. Extracorporeal carbon dioxide removal for patients with acute respiratory failure: a systematic review and meta-analysis. Ann Med 2023; 55:746-759. [PMID: 36856550 PMCID: PMC9980035 DOI: 10.1080/07853890.2023.2172606] [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] [Indexed: 03/02/2023] Open
Abstract
BACKGROUND Acute respiratory failure (ARF) is a common clinical critical syndrome with substantial mortality. Extracorporeal carbon dioxide removal (ECCO2R) has been proposed for the treatment of ARF. However, whether ECCO2R could provide a survival advantage for patients with ARF is still controversial. METHODS Electronic databases (PubMed, Embase, Web of Science, and the Cochrane database) were searched from inception to 30 April 2022. Randomized controlled trials (RCTs) and observational studies that examined the following outcomes were included: mortality, length of hospital and ICU stay, intubation and tracheotomy rate, mechanical ventilation days, ventilator-free days (VFDs), respiratory parameters, and reported adverse events. RESULTS Four RCTs and five observational studies including 1173 participants with ARF due to COPD or ARDS were included in this meta-analysis. Pooled analyses of related studies showed no significant difference in overall mortality between ECCO2R and control group, neither in RCTs targeted ARDS or acute hypoxic respiratory failure patients (RR 1.05, 95% CI 0.83 to 1.32, p = 0.70, I2 =0.0%), nor in studies targeted patients with ARF secondary to COPD (RR 0.80, 95% CI 0.58 to 1.11, p = 0.19, I2 =0.0%). A shorter duration of ICU stay in the ECCO2R group was only obtained in observational studies (WMD -4.25, p < 0.01), and ECCO2R was associated with a longer length of hospital stay (p = 0.02). ECCO2R was associated with lower intubation rate (p < 0.01) and tracheotomy rate (p = 0.01), and shorter mechanical ventilation days (p < 0.01) in comparison to control group in ARF patients with COPD. In addition, an improvement in pH (p = 0.01), PaO2 (p = 0.01), respiratory rate (p < 0.01), and PaCO2 (p = 0.04) was also observed in patients with COPD exacerbations by ECCO2R therapy. However, the ECCO2R-related complication rate was high in six of the included studies. CONCLUSIONS Our findings from both RCTs and observational studies did not confirm a significant beneficial effect of ECCO2R therapy on mortality. A shorter length of ICU stay in the ECCO2R group was only obtained in observational studies, and ECCO2R was associated with a longer length of hospital stay. ECCO2R was associated with lower intubation rate and tracheotomy rate, and shorter mechanical ventilation days in ARF patients with COPD. And an improvement in pH, PaO2, respiratory rate and PaCO2 was observed in the ECCO2R group. However, outcomes largely relied on data from observational studies targeted patients with ARF secondary to COPD, thus further larger high-quality RCTs are desirable to strengthen the evidence on the efficacy and benefits of ECCO2R for patients with ARF.Key messagesECCO2R therapy did not confirm a significant beneficial effect on mortality.ECCO2R was associated with lower intubation and tracheotomy rate, and shorter mechanical ventilation days in patients with ARF secondary to COPD.An improvement in pH, PaO2, respiratory rate, and PaCO2 was observed in ECCO2R group in patients with COPD exacerbations.Evidence for the future application of ECCO2R therapy for patients with ARF. The protocol of this meta-analysis was registered on PROSPERO (CRD42022295174).
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Affiliation(s)
- Zhifeng Zhou
- Division of Nephrology, Kidney Research Institute, West China Hospital of Sichuan University, Chengdu, China.,State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, First Medical Center of Chinese, PLA General Hospital, Beijing, China
| | - Zhengyan Li
- Division of Radiology, West China Hospital of Sichuan University, Chengdu, China
| | - Chen Liu
- Division of Nephrology, Kidney Research Institute, West China Hospital of Sichuan University, Chengdu, China.,State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, First Medical Center of Chinese, PLA General Hospital, Beijing, China
| | - Fang Wang
- Division of Nephrology, Kidney Research Institute, West China Hospital of Sichuan University, Chengdu, China.,State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, First Medical Center of Chinese, PLA General Hospital, Beijing, China
| | - Ling Zhang
- Division of Nephrology, Kidney Research Institute, West China Hospital of Sichuan University, Chengdu, China.,State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, First Medical Center of Chinese, PLA General Hospital, Beijing, China
| | - Ping Fu
- Division of Nephrology, Kidney Research Institute, West China Hospital of Sichuan University, Chengdu, China.,State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, First Medical Center of Chinese, PLA General Hospital, Beijing, China
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24
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Tonetti T, Zanella A, Pérez-Torres D, Grasselli G, Ranieri VM. Current knowledge gaps in extracorporeal respiratory support. Intensive Care Med Exp 2023; 11:77. [PMID: 37962702 PMCID: PMC10645840 DOI: 10.1186/s40635-023-00563-x] [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: 01/18/2023] [Accepted: 11/08/2023] [Indexed: 11/15/2023] Open
Abstract
Extracorporeal life support (ECLS) for acute respiratory failure encompasses veno-venous extracorporeal membrane oxygenation (V-V ECMO) and extracorporeal carbon dioxide removal (ECCO2R). V-V ECMO is primarily used to treat severe acute respiratory distress syndrome (ARDS), characterized by life-threatening hypoxemia or ventilatory insufficiency with conventional protective settings. It employs an artificial lung with high blood flows, and allows improvement in gas exchange, correction of hypoxemia, and reduction of the workload on the native lung. On the other hand, ECCO2R focuses on carbon dioxide removal and ventilatory load reduction ("ultra-protective ventilation") in moderate ARDS, or in avoiding pump failure in acute exacerbated chronic obstructive pulmonary disease. Clinical indications for V-V ECLS are tailored to individual patients, as there are no absolute contraindications. However, determining the ideal timing for initiating extracorporeal respiratory support remains uncertain. Current ECLS equipment faces issues like size and durability. Innovations include intravascular lung assist devices (ILADs) and pumpless devices, though they come with their own challenges. Efficient gas exchange relies on modern oxygenators using hollow fiber designs, but research is exploring microfluidic technology to improve oxygenator size, thrombogenicity, and blood flow capacity. Coagulation management during V-V ECLS is crucial due to common bleeding and thrombosis complications; indeed, anticoagulation strategies and monitoring systems require improvement, while surface coatings and new materials show promise. Moreover, pharmacokinetics during ECLS significantly impact antibiotic therapy, necessitating therapeutic drug monitoring for precise dosing. Managing native lung ventilation during V-V ECMO remains complex, requiring a careful balance between benefits and potential risks for spontaneously breathing patients. Moreover, weaning from V-V ECMO is recognized as an area of relevant uncertainty, requiring further research. In the last decade, the concept of Extracorporeal Organ Support (ECOS) for patients with multiple organ dysfunction has emerged, combining ECLS with other organ support therapies to provide a more holistic approach for critically ill patients. In this review, we aim at providing an in-depth overview of V-V ECMO and ECCO2R, addressing various aspects of their use, challenges, and potential future directions in research and development.
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Affiliation(s)
- Tommaso Tonetti
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum-University of Bologna, Bologna, Italy
- Anesthesiology and General Intensive Care Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Policlinico di S.Orsola, Bologna, Italy
| | - Alberto Zanella
- Department of Anesthesia, Critical Care and Emergency, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Ca' Granda Ospedale Maggiore Policlinico, Via F. Sforza 35, 20122, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - David Pérez-Torres
- Servicio de Medicina Intensiva, Hospital Universitario Río Hortega, Gerencia Regional de Salud de Castilla y León (SACYL), Calle Dulzaina, 2, 47012, Valladolid, Spain
| | - Giacomo Grasselli
- Department of Anesthesia, Critical Care and Emergency, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Ca' Granda Ospedale Maggiore Policlinico, Via F. Sforza 35, 20122, Milan, Italy.
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy.
| | - V Marco Ranieri
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum-University of Bologna, Bologna, Italy
- Anesthesiology and General Intensive Care Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Policlinico di S.Orsola, Bologna, Italy
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25
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Richard JC, Terzi N, Yonis H, Chorfa F, Wallet F, Dupuis C, Argaud L, Delannoy B, Thiery G, Pommier C, Abraham P, Muller M, Sigaud F, Rigault G, Joffredo E, Mezidi M, Souweine B, Baboi L, Serrier H, Rabilloud M, Bitker L. Ultra-low tidal volume ventilation for COVID-19-related ARDS in France (VT4COVID): a multicentre, open-label, parallel-group, randomised trial. THE LANCET. RESPIRATORY MEDICINE 2023; 11:991-1002. [PMID: 37453445 DOI: 10.1016/s2213-2600(23)00221-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/28/2023] [Accepted: 05/16/2023] [Indexed: 07/18/2023]
Abstract
BACKGROUND COVID-19-related acute respiratory distress syndrome (ARDS) is associated with a high mortality rate and longer mechanical ventilation. We aimed to assess the effectiveness of ventilation with ultra-low tidal volume (ULTV) compared with low tidal volume (LTV) in patients with COVID-19-related ARDS. METHODS This study was a multicentre, open-label, parallel-group, randomised trial conducted in ten intensive care units in France. Eligible participants were aged 18 years or older, received invasive mechanical ventilation for COVID-19 (confirmed by RT-PCR), had ARDS according to the Berlin definition, a partial pressure of arterial oxygen to inspiratory oxygen fraction (PaO2/FiO2) ratio of 150 mm Hg or less, a tidal volume (VT) of 6·0 mL/kg predicted bodyweight or less, and received continuous intravenous sedation. Patients were randomly assigned (1:1) using randomisation blocks to receive ULTV (intervention group) aiming for VT of 4·0 mL/kg predicted bodyweight or LTV (control group) aiming for VT 6·0 mL/kg predicted bodyweight. Participants, investigators, and outcome assessors were not masked to group assignment. The primary outcome was a ranked composite score based on all-cause mortality at day 90 as the first criterion and ventilator-free days among patients alive at day 60 as the second criterion. Effect size was computed with the unmatched win ratio, on the basis of pairwise prioritised comparison of primary outcome components between every patient in the ULTV group and every patient in the LTV group. The unmatched win ratio was calculated as the ratio of the number of pairs with more favourable outcome in the ULTV group over the number of pairs with less favourable outcome in the ULTV group. Primary analysis was done in the modified intention-to-treat population, which included all participants who were randomly assigned and not lost to follow-up. This trial is registered with ClinicalTrials.gov, NCT04349618. FINDINGS Between April 15, 2020, and April 13, 2021, 220 patients were included and five (2%) were excluded. 215 patients were randomly assigned (106 [49%] to the ULTV group and 109 [51%] to the LTV group). 58 (27%) patients were female and 157 (73%) were male. The median age was 68 years (IQR 60-74). 214 patients completed follow-up (one lost to follow-up in the ULTV group) and were included in the modified intention-to-treat analysis. The primary outcome was not significantly different between groups (unmatched win ratio in the ULTV group 0·85 [95% CI 0·60 to 1·19]; p=0·38). 46 (44%) of 105 patients in the ULTV group and 43 (39%) of 109 in the LTV group died by day 90 (absolute difference 4% [-9 to 18]; p=0·52). The rate of severe respiratory acidosis in the first 28 days was higher in the ULTV group than in the LTV group (35 [33%] vs 14 [13%]; absolute difference 20% [95% CI 9 to 31]; p=0·0004). INTERPRETATION In patients with moderate-to-severe COVID-19-related ARDS, there was no significant difference with ULTV compared with LTV in the composite score based on mortality and ventilator-free days among patients alive at day 60. These findings do not support the systematic use of ULTV in patients with COVID-19-related ARDS. FUNDING French Ministry of Solidarity and Health and Hospices Civils de Lyon.
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Affiliation(s)
- Jean-Christophe Richard
- Hospices Civils de Lyon, Croix-Rousse Hospital, Medical Intensive Care Unit, Lyon, France; Université de Lyon, Université Lyon 1, Lyon, France; CREATIS INSERM 1044 CNRS 5220, Lyon, France.
| | - Nicolas Terzi
- CHU Grenoble Alpes, Service de Médecine Intensive Réanimation, Grenoble, France; Université de Grenoble-Alpes, Grenoble, France; INSERM U1042, Grenoble, France
| | - Hodane Yonis
- Hospices Civils de Lyon, Croix-Rousse Hospital, Medical Intensive Care Unit, Lyon, France
| | - Fatima Chorfa
- Hospices Civils de Lyon, Pôle Santé Publique, Service de Biostatistique et Bioinformatique, Lyon, France
| | - Florent Wallet
- Hospices Civils de Lyon, Lyon-Sud Hospital, Medical-Surgical Intensive Care Unit, Lyon, France; International Center of Research in Infectiology, Lyon University, INSERM U1111, CNRS UMR 5308, ENS, UCBL, Lyon, France
| | - Claire Dupuis
- CHU Gabriel Montpied, Medical Intensive Care Unit, Clermont-Ferrand, France
| | - Laurent Argaud
- Hospices Civils de Lyon, Edouard Herriot Hospital, Medical Intensive Care Unit, Lyon, France
| | - Bertrand Delannoy
- Clinique de la Sauvegarde, Medical-Surgical Intensive Care Unit, Lyon, France
| | - Guillaume Thiery
- CHU Saint-Etienne, Hopital Nord, Medical Intensive Care Unit, Saint-Priest-En-Jarez, France; Research on Healthcare Performance RESHAPE, INSERM U1290, Université Lyon 1, Lyon, France
| | - Christian Pommier
- Centre Hospitalier Saint Joseph-Saint Luc, Medical-Surgical Intensive Care Unit, Lyon, France
| | - Paul Abraham
- Hospices Civils de Lyon, Edouard Herriot Hospital, Surgical Intensive Care Unit, Lyon, France
| | - Michel Muller
- Centre Hospitalier Annecy Genevois, Medical-Surgical Intensive Care Unit, Pringy, France
| | - Florian Sigaud
- CHU Grenoble Alpes, Service de Médecine Intensive Réanimation, Grenoble, France
| | - Guillaume Rigault
- CHU Grenoble Alpes, Service de Médecine Intensive Réanimation, Grenoble, France; Université de Grenoble-Alpes, Grenoble, France
| | - Emilie Joffredo
- Hospices Civils de Lyon, Lyon-Sud Hospital, Medical-Surgical Intensive Care Unit, Lyon, France
| | - Mehdi Mezidi
- Hospices Civils de Lyon, Croix-Rousse Hospital, Medical Intensive Care Unit, Lyon, France
| | - Bertrand Souweine
- CHU Gabriel Montpied, Medical Intensive Care Unit, Clermont-Ferrand, France
| | - Loredana Baboi
- Hospices Civils de Lyon, Croix-Rousse Hospital, Medical Intensive Care Unit, Lyon, France
| | - Hassan Serrier
- Hospices Civils de Lyon, Cellule Innovation, Délégation à la Recherche Clinique et à l'Innovation, Lyon, France
| | - Muriel Rabilloud
- Université de Lyon, Université Lyon 1, Lyon, France; Hospices Civils de Lyon, Pôle Santé Publique, Service de Biostatistique et Bioinformatique, Lyon, France; CNRS, UMR 5558, Laboratoire de Biométrie et Biologie Évolutive, Équipe Biostatistique-Santé, Lyon, France
| | - Laurent Bitker
- Hospices Civils de Lyon, Croix-Rousse Hospital, Medical Intensive Care Unit, Lyon, France; Université de Lyon, Université Lyon 1, Lyon, France; CREATIS INSERM 1044 CNRS 5220, Lyon, France
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Fawley JA, Tignanelli CJ, Werner NL, Kasotakis G, Mandell SP, Glass NE, Dries DJ, Costantini TW, Napolitano LM. American Association for the Surgery of Trauma/American College of Surgeons Committee on Trauma clinical protocol for management of acute respiratory distress syndrome and severe hypoxemia. J Trauma Acute Care Surg 2023; 95:592-602. [PMID: 37314843 PMCID: PMC10545067 DOI: 10.1097/ta.0000000000004046] [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: 03/12/2023] [Revised: 04/27/2023] [Accepted: 04/28/2023] [Indexed: 06/15/2023]
Abstract
LEVEL OF EVIDENCE Therapeutic/Care Management: Level V.
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Burrell A, Kim J, Alliegro P, Romero L, Serpa Neto A, Mariajoseph F, Hodgson C. Extracorporeal membrane oxygenation for critically ill adults. Cochrane Database Syst Rev 2023; 9:CD010381. [PMID: 37750499 PMCID: PMC10521169 DOI: 10.1002/14651858.cd010381.pub3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
BACKGROUND Extracorporeal membrane oxygenation (ECMO) may provide benefit in certain populations of adults, including those with severe cardiac failure, severe respiratory failure, and cardiac arrest. However, it is also associated with serious short- and long-term complications, and there remains a lack of high-quality evidence to guide practice. Recently several large randomized controlled trials (RCTs) have been published, therefore, we undertook an update of our previous systematic review published in 2014. OBJECTIVES To evaluate whether venovenous (VV), venoarterial (VA), or ECMO cardiopulmonary resuscitation (ECPR) improve mortality compared to conventional cardiopulmonary support in critically ill adults. SEARCH METHODS We used standard, extensive Cochrane search methods. The latest search date was March 2022. The search was limited to English language only. SELECTION CRITERIA We included RCTs, quasi-RCTs, and cluster-RCTs that compared VV ECMO, VA ECMO or ECPR to conventional support in critically ill adults. DATA COLLECTION AND ANALYSIS We used standard Cochrane methods. Our primary outcome was 1. all-cause mortality at day 90 to one year. Our secondary outcomes were 2. length of hospital stay, 3. survival to discharge, 4. disability, 5. adverse outcomes/safety events, 6. health-related quality of life, 7. longer-term health status, and 8. cost-effectiveness. We used GRADE to assess certainty of evidence. MAIN RESULTS Five RCTs met our inclusion criteria, with four new studies being added to the original review (total 757 participants). Two studies were of VV ECMO (429 participants), one VA ECMO (41 participants), and two ECPR (285 participants). Four RCTs had a low risk of bias and one was unclear, and the overall certainty of the results (GRADE score) was moderate, reduced primarily due to indirectness of the study populations and interventions. ECMO was associated with a reduction in 90-day to one-year mortality compared to conventional treatment (risk ratio [RR] 0.80, 95% confidence interval [CI] 0.70 to 0.92; P = 0.002, I2 = 11%). This finding remained stable after performing a sensitivity analysis by removing the single trial with an uncertain risk of bias. Subgroup analyses did not reveal a significant subgroup effect across VV, VA, or ECPR modes (P = 0.73). Four studies reported an increased risk of major hemorrhage with ECMO (RR 3.32, 95% CI 1.90 to 5.82; P < 0.001), while two studies reported no difference in favorable neurologic outcome (RR 2.83, 95% CI 0.36 to 22.42; P = 0.32). Other secondary outcomes were not consistently reported across the studies. AUTHORS' CONCLUSIONS In this updated systematic review, which included four additional RCTs, we found that ECMO was associated with a reduction in day-90 to one-year all-cause mortality, as well as three times increased risk of bleeding. However, the certainty of this result was only low to moderate, limited by a low number of small trials, clinical heterogeneity, and indirectness across studies.
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Affiliation(s)
- Aidan Burrell
- Australian and New Zealand Intensive Care Research Centre (ANZIC-RC), Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
- Department of Intensive Care, The Alfred Hospital, Melbourne, Australia
| | - Jiwon Kim
- Australian and New Zealand Intensive Care Research Centre (ANZIC-RC), Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
| | - Patricia Alliegro
- Australian and New Zealand Intensive Care Research Centre (ANZIC-RC), Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
| | - Lorena Romero
- The Ian Potter Library, The Alfred Hospital, Melbourne, Australia
| | - Ary Serpa Neto
- Australian and New Zealand Intensive Care Research Centre (ANZIC-RC), Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
- Intensive Care, Austin Hospital, Melbourne, Australia
| | - Frederick Mariajoseph
- Australian and New Zealand Intensive Care Research Centre (ANZIC-RC), Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
| | - Carol Hodgson
- Australian and New Zealand Intensive Care Research Centre (ANZIC-RC), Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
- Department of Physiotherapy, The Alfred Hospital, Melbourne, Australia
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Goligher EC, McNamee JJ, Dianti J, Fan E, Ferguson ND, Slutsky AS, McAuley DF. Heterogeneous Treatment Effects of Extracorporeal CO 2 Removal in Acute Hypoxemic Respiratory Failure. Am J Respir Crit Care Med 2023; 208:739-742. [PMID: 37433221 DOI: 10.1164/rccm.202304-0689le] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 07/11/2023] [Indexed: 07/13/2023] Open
Affiliation(s)
- Ewan C Goligher
- Division of Respirology, Department of Medicine, University Health Network, Toronto, Ontario, Canada
- Interdepartmental Division of Critical Care Medicine, Department of Medicine
- Department of Physiology, and
- Toronto General Hospital Research Institute, Toronto, Ontario, Canada
| | - James J McNamee
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry, and Biomedical Science, Queen's University Belfast, Belfast, United Kingdom
- Regional Intensive Care Unit, Royal Victoria Hospital, Belfast, United Kingdom; and
| | - Jose Dianti
- Division of Respirology, Department of Medicine, University Health Network, Toronto, Ontario, Canada
- Interdepartmental Division of Critical Care Medicine, Department of Medicine
| | - Eddy Fan
- Division of Respirology, Department of Medicine, University Health Network, Toronto, Ontario, Canada
- Interdepartmental Division of Critical Care Medicine, Department of Medicine
- Institute for Health Policy, Management, and Evaluation, University of Toronto, Toronto, Ontario, Canada
- Toronto General Hospital Research Institute, Toronto, Ontario, Canada
| | - Niall D Ferguson
- Division of Respirology, Department of Medicine, University Health Network, Toronto, Ontario, Canada
- Interdepartmental Division of Critical Care Medicine, Department of Medicine
- Department of Physiology, and
- Institute for Health Policy, Management, and Evaluation, University of Toronto, Toronto, Ontario, Canada
- Toronto General Hospital Research Institute, Toronto, Ontario, Canada
| | - Arthur S Slutsky
- Interdepartmental Division of Critical Care Medicine, Department of Medicine
- Keenan Research Centre, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Daniel F McAuley
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry, and Biomedical Science, Queen's University Belfast, Belfast, United Kingdom
- Regional Intensive Care Unit, Royal Victoria Hospital, Belfast, United Kingdom; and
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Florio G, Valsecchi C, Vivona L, Battistin M, Colombo SM, Cattaneo E, Protti I, DI Feliciantonio M, Castelli G, Dondossola D, Biancolilli O, Carlin A, Gatti S, Pesenti AM, Zanella A, Grasselli G. Enhanced extracorporeal carbon dioxide removal by acidification and metabolic control. Minerva Anestesiol 2023; 89:773-782. [PMID: 36951601 DOI: 10.23736/s0375-9393.23.17142-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/24/2023]
Abstract
BACKGROUND Extracorporeal carbon dioxide removal (ECCO2R) promotes protective ventilation in patients with acute respiratory failure, but devices with high CO2 extraction capacity are required for clinically relevant impact. This study evaluates three novel low-flow techniques based on dialysate acidification, also combined with renal replacement therapy, and metabolic control. METHODS Eight swine were connected to a low-flow (350 mL/min) extracorporeal circuit including a dialyzer with a closed-loop dialysate circuit, and two membrane lungs on blood (MLb) and dialysate (MLd), respectively. The following 2-hour steps were performed: 1) MLb-start (MLb ventilated); 2) MLbd-start (MLb and MLd ventilated); 3) HLac (lactic acid infusion before MLd); 4) HCl-NaLac (hydrochloric acid infusion before MLd combined with renal replacement therapy and reinfusion of sodium lactate); 5) HCl-βHB-NaLac (hydrochloric acid infusion before MLd combined with renal replacement therapy and reinfusion of sodium lactate and sodium 3-hydroxybutyrate). Caloric and fluid inputs, temperature, blood glucose and arterial carbon dioxide pressure were kept constant. RESULTS The total MLs CO2 removal in HLac (130±25 mL/min), HCl-NaLac (130±21 mL/min) and HCl-βHB-NaLac (124±18 mL/min) were higher compared with MLbd-start (81±15 mL/min, P<0.05) and MLb-start (55±7 mL/min, P<0.05). Minute ventilation in HLac (4.3±0.9 L/min), HCl-NaLac (3.6±0.8 L/min) and HCl-βHB-NaLac (3.6±0.8 L/min) were lower compared to MLb-start (6.2±1.1 L/min, P<0.05) and MLbd-start (5.8±2.1 L/min, P<0.05). Arterial pH was 7.40±0.03 at MLb-start and decreased only during HCl-βHB-NaLac (7.35±0.03, P<0.05). No relevant changes in electrolyte concentrations, hemodynamics and significant adverse events were detected. CONCLUSIONS The three techniques achieved a significant extracorporeal CO2 removal allowing a relevant reduction in minute ventilation with a sufficient safety profile.
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Affiliation(s)
- Gaetano Florio
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Carlo Valsecchi
- Department of Anesthesia, Critical Care and Emergency, Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Milan, Italy
| | - Luigi Vivona
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Michele Battistin
- Center for Preclinical Research, Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Milan, Italy
| | - Sebastiano M Colombo
- Department of Anesthesia, Critical Care and Emergency, Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Milan, Italy
| | - Emanuele Cattaneo
- Department of Anesthesia, Critical Care and Emergency, Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Milan, Italy
| | - Ilaria Protti
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | | | - Gloria Castelli
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Daniele Dondossola
- Liver Transplant and General Surgery Unit, Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Milan, Italy
| | - Osvaldo Biancolilli
- Department of Anesthesia, Critical Care and Emergency, Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Milan, Italy
| | - Andrea Carlin
- Department of Anesthesia, Critical Care and Emergency, Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Milan, Italy
| | - Stefano Gatti
- Center for Preclinical Research, Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Milan, Italy
| | - Antonio M Pesenti
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
- Department of Anesthesia, Critical Care and Emergency, Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Milan, Italy
| | - Alberto Zanella
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy -
- Department of Anesthesia, Critical Care and Emergency, Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Milan, Italy
| | - Giacomo Grasselli
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
- Department of Anesthesia, Critical Care and Emergency, Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Milan, Italy
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Agus A, McNamee JJ, Jackson C, McAuley DF. Extracorporeal carbon dioxide removal compared to ventilation alone in patients with acute hypoxaemic respiratory failure: cost-utility analysis of the REST RCT. Health Technol Assess 2023:1-26. [PMID: 37843629 PMCID: PMC10591206 DOI: 10.3310/fcdq8036] [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: 10/17/2023] Open
Abstract
Background Acute hypoxaemic respiratory failure requiring mechanical ventilation is a major cause of morbidity and mortality and has significant resource implications in terms of intensive care unit and hospital stay. Objective To assess the cost-effectiveness of extracorporeal carbon dioxide removal compared to ventilation alone in patients with acute hypoxaemic respiratory failure. Design A cost-utility analysis embedded within a pragmatic, multicentre, allocation-concealed, open-label, randomised controlled trial. Participants Four hundred and twelve (of a planned sample size of 1120) adult patients receiving mechanical ventilation for acute hypoxaemic respiratory failure, were recruited between May 2016 and December 2019 from 51 intensive care units in the UK. Interventions Participants were randomised (1 : 1) to receive extracorporeal carbon dioxide removal for at least 48 hours (n = 202) or standard care with ventilation alone (n = 210). Outcomes Health-related quality of life via the EuroQol-5 Dimensions, five-level version, health resource use and associated costs were measured over the study period. The cost per quality-adjusted life-year was estimated at 12 months post randomisation. Results Mean EuroQol-5 Dimensions, five-level version utility scores were low and similar for each group. Quality-adjusted life-years were calculated for those patients with complete EuroQol-5 Dimensions, five-level version data (extracorporeal carbon dioxide removal n = 140, ventilation alone n = 143) and there was no discernible difference in quality-adjusted life-years at 12 months (mean difference -0.01; 95% confidence interval -0.06 to 0.05; 140). Total 12-month health resource use cost (including intervention costs) was calculated for those patients with complete cost data (extracorporeal carbon dioxide removal n = 125, ventilation alone n = 126) and costs were statistically significantly higher in the extracorporeal carbon dioxide removal group (mean difference £7668.76, 95% confidence interval 159.75, 15,177.77). Multiple imputation was used for missing total cost and quality-adjusted life-year data in the cost-utility analysis. Ventilation alone dominated extracorporeal carbon dioxide removal and there was 0% probability of extracorporeal carbon dioxide removal being cost-effective compared to ventilation alone for all willingness to pay thresholds per quality-adjusted life-year considered (£0-50,000). Conclusions Extracorporeal carbon dioxide removal was associated with significantly higher costs, but no benefit in health-related quality of life. Given the data, extracorporeal carbon dioxide removal is not considered to be a cost-effective approach to treating patients with acute hypoxaemic respiratory failure. Limitations These included the absence of a baseline healthy utility score, minor data loss related to not obtaining complete intensive care unit readmission data for Scottish participants, and not estimating long-term cost-effectiveness due to the study closing early. Future work Measuring baseline health-related quality of life in critical care studies is difficult; future economic evaluations in this setting should consider measuring health-related quality of life as soon as possible after the patients regain capacity. Trial registration This trial is registered as NCT02654327 and ISRCTN 31262122. Funding This article presents independent research funded by the National Institute for Health and Care Research (NIHR) Health Technology Assessment programme as award number 13/143/02.
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Affiliation(s)
- Ashley Agus
- Northern Ireland Clinical Trials Unit, Belfast, UK
| | - James J McNamee
- Regional Intensive Care Unit, Royal Victoria Hospital, Belfast, UK
| | | | - Danny F McAuley
- Regional Intensive Care Unit, Royal Victoria Hospital, Belfast, UK
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Boyle AJ, McDowell C, Agus A, Logan D, Stewart JD, Jackson C, Mills J, McNamee JJ, McAuley DF. Acute hypoxaemic respiratory failure after treatment with lower tidal volume ventilation facilitated by extracorporeal carbon dioxide removal: long-term outcomes from the REST randomised trial. Thorax 2023; 78:767-774. [PMID: 36198573 PMCID: PMC10359587 DOI: 10.1136/thorax-2022-218874] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 09/19/2022] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Lower tidal volume ventilation, facilitated by veno-venous extracorporeal carbon dioxide removal (vv-ECCO2R), does not improve 90-day mortality in patients with acute hypoxaemic respiratory failure (AHRF). The aim of this analysis was to evaluate the effect of this therapeutic strategy on long-term outcomes. METHODS This was a prespecified analysis of the REST trial, a UK-wide multicentre randomised clinical trial that compared lower tidal volume ventilation, facilitated by vv-ECCO2R (intervention), with standard care in the treatment of patients with moderate-to-severe AHRF. Mortality to 2 years was assessed, while respiratory function, post-traumatic stress disorder, cognitive function and health-related quality of life were evaluated in survivors at 1 year using standardised questionnaires. RESULTS Of 412 patients enrolled into the REST trial, 391 (95%) had 2-year mortality outcome data available. There was no difference in the time to death between intervention and standard care (HR 1.08 (0.81, 1.44); log-rank test p=0.61). 161 patients alive at 1 year provided at least one questionnaire response. There was no difference in respiratory function, post-traumatic stress disorder, cognitive dysfunction or health-related quality of life between patients allocated to intervention or standard care. CONCLUSION Lower-tidal volume ventilation facilitated by vv-ECCO2R does not affect 1-year mortality in patients with moderate-to-severe AHRF. Of the patients who provided questionnaire responses, there was no treatment effect on long-term respiratory function, post-traumatic stress disorder, cognitive dysfunction or health-related quality of life. TRIAL REGISTRATION NUMBER ClinicalTrials.gov identifier: NCT02654327.
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Affiliation(s)
- Andrew J Boyle
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, UK
- Regional Intensive Care Unit, Royal Victoria Hospital, Belfast, UK
| | | | - Ashley Agus
- Northern Ireland Clinical Trials Unit, Belfast, UK
| | | | - Jonathan D Stewart
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, UK
| | | | | | - James J McNamee
- Regional Intensive Care Unit, Royal Victoria Hospital, Belfast, UK
| | - Daniel F McAuley
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, UK
- Regional Intensive Care Unit, Royal Victoria Hospital, Belfast, UK
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Taccone FS, Rinaldi S, Annoni F, Nobile L, Di Nardo M, Maccieri J, Aliberti A, Malfertheiner MV, Marudi A, Broman LM, Belliato M. Safety and Effectiveness of Carbon Dioxide Removal CO2RESET Device in Critically Ill Patients. MEMBRANES 2023; 13:686. [PMID: 37505051 PMCID: PMC10385949 DOI: 10.3390/membranes13070686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/01/2023] [Accepted: 07/17/2023] [Indexed: 07/29/2023]
Abstract
BACKGROUND In this retrospective study, we report the effectiveness and safety of a dedicated extracorporeal carbon dioxide removal (ECCO2R) device in critically ill patients. METHODS Adult patients on mechanical ventilation due to acute respiratory distress syndrome (ARDS) or decompensated chronic obstructive pulmonary disease (dCOPD), who were treated with a dedicated ECCO2R device (CO2RESET, Eurosets, Medolla, Italy) in case of hypercapnic acidemia, were included. Repeated measurements of CO2 removal (VCO2) at baseline and 1, 12, and 24 h after the initiation of therapy were recorded. RESULTS Over a three-year period, 11 patients received ECCO2R (median age 60 [43-72] years) 3 (2-39) days after ICU admission; nine patients had ARDS and two had dCOPD. Median baseline pH and PaCO2 levels were 7.27 (7.12-7.33) and 65 (50-84) mmHg, respectively. With a median ECCO2R blood flow of 800 (500-800) mL/min and maximum gas flow of 6 (2-14) L/min, the VCO2 at 12 h after ECCO2R initiation was 157 (58-183) mL/min. Tidal volume, respiratory rate, and driving pressure were significantly reduced over time. Few side effects were reported. CONCLUSIONS In this study, a dedicated ECCO2R device provided a high VCO2 with a favorable risk profile.
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Affiliation(s)
- Fabio Silvio Taccone
- Department of Intensive Care, Erasme Hospital, Lennik Road 808, 1070 Brussels, Belgium
| | - Simone Rinaldi
- Struttura Complessa di Anestesia e Rianimazione, Ospedale Civile di Baggiovara, 41100 Modena, Italy
| | - Filippo Annoni
- Department of Intensive Care, Erasme Hospital, Lennik Road 808, 1070 Brussels, Belgium
| | - Leda Nobile
- Department of Intensive Care, Erasme Hospital, Lennik Road 808, 1070 Brussels, Belgium
| | - Matteo Di Nardo
- Pediatric Intensive Care Unit, Bambino Gesù Children's Hospital, IRCCS, 00165 Rome, Italy
| | - Jessica Maccieri
- Struttura Complessa di Anestesia e Rianimazione, Ospedale Civile di Baggiovara, 41100 Modena, Italy
| | - Anna Aliberti
- SC AR2 Anestesia e Terapia Intensiva Cardiotoracica, Foundation IRCCS Policlinico San Matteo, 27100 Pavia, Italy
| | | | - Andrea Marudi
- Struttura Complessa di Anestesia e Rianimazione, Ospedale Civile di Baggiovara, 41100 Modena, Italy
| | - Lars Mikael Broman
- ECMO Centre Karolinska, Karolinska University Hospital, 171 77 Stockholm, Sweden
- Department of Physiology and Pharmacology, Karolinska Institutet, 171 64 Stockholm, Sweden
| | - Mirko Belliato
- SC AR2 Anestesia e Terapia Intensiva Cardiotoracica, Foundation IRCCS Policlinico San Matteo, 27100 Pavia, Italy
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Grasselli G, Calfee CS, Camporota L, Poole D, Amato MBP, Antonelli M, Arabi YM, Baroncelli F, Beitler JR, Bellani G, Bellingan G, Blackwood B, Bos LDJ, Brochard L, Brodie D, Burns KEA, Combes A, D'Arrigo S, De Backer D, Demoule A, Einav S, Fan E, Ferguson ND, Frat JP, Gattinoni L, Guérin C, Herridge MS, Hodgson C, Hough CL, Jaber S, Juffermans NP, Karagiannidis C, Kesecioglu J, Kwizera A, Laffey JG, Mancebo J, Matthay MA, McAuley DF, Mercat A, Meyer NJ, Moss M, Munshi L, Myatra SN, Ng Gong M, Papazian L, Patel BK, Pellegrini M, Perner A, Pesenti A, Piquilloud L, Qiu H, Ranieri MV, Riviello E, Slutsky AS, Stapleton RD, Summers C, Thompson TB, Valente Barbas CS, Villar J, Ware LB, Weiss B, Zampieri FG, Azoulay E, Cecconi M. ESICM guidelines on acute respiratory distress syndrome: definition, phenotyping and respiratory support strategies. Intensive Care Med 2023; 49:727-759. [PMID: 37326646 PMCID: PMC10354163 DOI: 10.1007/s00134-023-07050-7] [Citation(s) in RCA: 97] [Impact Index Per Article: 97.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 03/24/2023] [Indexed: 06/17/2023]
Abstract
The aim of these guidelines is to update the 2017 clinical practice guideline (CPG) of the European Society of Intensive Care Medicine (ESICM). The scope of this CPG is limited to adult patients and to non-pharmacological respiratory support strategies across different aspects of acute respiratory distress syndrome (ARDS), including ARDS due to coronavirus disease 2019 (COVID-19). These guidelines were formulated by an international panel of clinical experts, one methodologist and patients' representatives on behalf of the ESICM. The review was conducted in compliance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement recommendations. We followed the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach to assess the certainty of evidence and grade recommendations and the quality of reporting of each study based on the EQUATOR (Enhancing the QUAlity and Transparency Of health Research) network guidelines. The CPG addressed 21 questions and formulates 21 recommendations on the following domains: (1) definition; (2) phenotyping, and respiratory support strategies including (3) high-flow nasal cannula oxygen (HFNO); (4) non-invasive ventilation (NIV); (5) tidal volume setting; (6) positive end-expiratory pressure (PEEP) and recruitment maneuvers (RM); (7) prone positioning; (8) neuromuscular blockade, and (9) extracorporeal life support (ECLS). In addition, the CPG includes expert opinion on clinical practice and identifies the areas of future research.
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Affiliation(s)
- Giacomo Grasselli
- Department of Anesthesia, Critical Care and Emergency, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy.
| | - Carolyn S Calfee
- Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, Department of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Luigi Camporota
- Department of Adult Critical Care, Guy's and St Thomas' NHS Foundation Trust, London, UK
- Centre for Human and Applied Physiological Sciences, King's College London, London, UK
| | - Daniele Poole
- Operative Unit of Anesthesia and Intensive Care, S. Martino Hospital, Belluno, Italy
| | | | - Massimo Antonelli
- Department of Anesthesiology Intensive Care and Emergency Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
- Università Cattolica del Sacro Cuore, Rome, Italy
| | - Yaseen M Arabi
- Intensive Care Department, Ministry of the National Guard - Health Affairs, Riyadh, Kingdom of Saudi Arabia
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Kingdom of Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Kingdom of Saudi Arabia
| | - Francesca Baroncelli
- Department of Anesthesia and Intensive Care, San Giovanni Bosco Hospital, Torino, Italy
| | - Jeremy R Beitler
- Center for Acute Respiratory Failure and Division of Pulmonary, Allergy and Critical Care Medicine, Columbia University, New York, NY, USA
| | - Giacomo Bellani
- Centre for Medical Sciences - CISMed, University of Trento, Trento, Italy
- Department of Anesthesia and Intensive Care, Santa Chiara Hospital, APSS Trento, Trento, Italy
| | - Geoff Bellingan
- Intensive Care Medicine, University College London, NIHR University College London Hospitals Biomedical Research Centre, London, UK
| | - Bronagh Blackwood
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, UK
| | - Lieuwe D J Bos
- Intensive Care, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Laurent Brochard
- Keenan Research Center, Li Ka Shing Knowledge Institute, Unity Health Toronto, Toronto, Canada
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Canada
| | - Daniel Brodie
- Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Karen E A Burns
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Canada
- Department of Medicine, Division of Critical Care, Unity Health Toronto - Saint Michael's Hospital, Toronto, Canada
- Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Canada
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Canada
| | - Alain Combes
- Sorbonne Université, INSERM, UMRS_1166-ICAN, Institute of Cardiometabolism and Nutrition, F-75013, Paris, France
- Service de Médecine Intensive-Réanimation, Institut de Cardiologie, APHP Sorbonne Université Hôpital Pitié-Salpêtrière, F-75013, Paris, France
| | - Sonia D'Arrigo
- Department of Anesthesiology Intensive Care and Emergency Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Daniel De Backer
- Department of Intensive Care, CHIREC Hospitals, Université Libre de Bruxelles, Brussels, Belgium
| | - Alexandre Demoule
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Service de Médecine Intensive - Réanimation (Département R3S), Paris, France
| | - Sharon Einav
- Shaare Zedek Medical Center and Hebrew University Faculty of Medicine, Jerusalem, Israel
| | - Eddy Fan
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Canada
| | - Niall D Ferguson
- Department of Medicine, Division of Respirology and Critical Care, Toronto General Hospital Research Institute, University Health Network, Toronto, Canada
- Departments of Medicine and Physiology, Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Canada
| | - Jean-Pierre Frat
- CHU De Poitiers, Médecine Intensive Réanimation, Poitiers, France
- INSERM, CIC-1402, IS-ALIVE, Université de Poitiers, Faculté de Médecine et de Pharmacie, Poitiers, France
| | - Luciano Gattinoni
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
| | - Claude Guérin
- University of Lyon, Lyon, France
- Institut Mondor de Recherches Biomédicales, INSERM 955 CNRS 7200, Créteil, France
| | - Margaret S Herridge
- Critical Care and Respiratory Medicine, University Health Network, Toronto General Research Institute, Institute of Medical Sciences, Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Canada
| | - Carol Hodgson
- The Australian and New Zealand Intensive Care Research Center, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
- Department of Intensive Care, Alfred Health, Melbourne, Australia
| | - Catherine L Hough
- Division of Pulmonary, Allergy and Critical Care Medicine, Oregon Health and Science University, Portland, OR, USA
| | - Samir Jaber
- Anesthesia and Critical Care Department (DAR-B), Saint Eloi Teaching Hospital, University of Montpellier, Research Unit: PhyMedExp, INSERM U-1046, CNRS, 34295, Montpellier, France
| | - Nicole P Juffermans
- Laboratory of Translational Intensive Care, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Christian Karagiannidis
- Department of Pneumology and Critical Care Medicine, Cologne-Merheim Hospital, ARDS and ECMO Centre, Kliniken Der Stadt Köln gGmbH, Witten/Herdecke University Hospital, Cologne, Germany
| | - Jozef Kesecioglu
- Department of Intensive Care Medicine, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Arthur Kwizera
- Makerere University College of Health Sciences, School of Medicine, Department of Anesthesia and Intensive Care, Kampala, Uganda
| | - John G Laffey
- Anesthesia and Intensive Care Medicine, School of Medicine, College of Medicine Nursing and Health Sciences, University of Galway, Galway, Ireland
- Anesthesia and Intensive Care Medicine, Galway University Hospitals, Saolta University Hospitals Groups, Galway, Ireland
| | - Jordi Mancebo
- Intensive Care Department, Hospital Universitari de La Santa Creu I Sant Pau, Barcelona, Spain
| | - Michael A Matthay
- Departments of Medicine and Anesthesia, Cardiovascular Research Institute, University of California San Francisco, San Francisco, CA, USA
| | - Daniel F McAuley
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, UK
- Regional Intensive Care Unit, Royal Victoria Hospital, Belfast Health and Social Care Trust, Belfast, UK
| | - Alain Mercat
- Département de Médecine Intensive Réanimation, CHU d'Angers, Université d'Angers, Angers, France
| | - Nuala J Meyer
- University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA
| | - Marc Moss
- Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado, School of Medicine, Aurora, CO, USA
| | - Laveena Munshi
- Interdepartmental Division of Critical Care Medicine, Sinai Health System, University of Toronto, Toronto, Canada
| | - Sheila N Myatra
- Department of Anesthesiology, Critical Care and Pain, Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai, India
| | - Michelle Ng Gong
- Division of Pulmonary and Critical Care Medicine, Montefiore Medical Center, Bronx, New York, NY, USA
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, New York, NY, USA
| | - Laurent Papazian
- Bastia General Hospital Intensive Care Unit, Bastia, France
- Aix-Marseille University, Faculté de Médecine, Marseille, France
| | - Bhakti K Patel
- Section of Pulmonary and Critical Care, Department of Medicine, University of Chicago, Chicago, IL, USA
| | - Mariangela Pellegrini
- Anesthesia and Intensive Care Medicine, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Anders Perner
- Department of Intensive Care, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Antonio Pesenti
- Department of Anesthesia, Critical Care and Emergency, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Lise Piquilloud
- Adult Intensive Care Unit, University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Haibo Qiu
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, Southeast University, Nanjing, 210009, China
| | - Marco V Ranieri
- Alma Mater Studiorum - Università di Bologna, Bologna, Italy
- Anesthesia and Intensive Care Medicine, IRCCS Policlinico di Sant'Orsola, Bologna, Italy
| | - Elisabeth Riviello
- Division of Pulmonary, Critical Care and Sleep Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Arthur S Slutsky
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Canada
- Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Canada
| | - Renee D Stapleton
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Vermont Larner College of Medicine, Burlington, VT, USA
| | - Charlotte Summers
- Department of Medicine, University of Cambridge Medical School, Cambridge, UK
| | - Taylor B Thompson
- Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Carmen S Valente Barbas
- University of São Paulo Medical School, São Paulo, Brazil
- Hospital Israelita Albert Einstein, São Paulo, Brazil
| | - Jesús Villar
- Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Canada
- CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain
- Research Unit, Hospital Universitario Dr. Negrin, Las Palmas de Gran Canaria, Spain
| | - Lorraine B Ware
- Departments of Medicine and Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Björn Weiss
- Department of Anesthesiology and Intensive Care Medicine (CCM CVK), Charitè - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Berlin, Germany
| | - Fernando G Zampieri
- Academic Research Organization, Albert Einstein Hospital, São Paulo, Brazil
- Department of Critical Care Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - Elie Azoulay
- Médecine Intensive et Réanimation, APHP, Hôpital Saint-Louis, Paris Cité University, Paris, France
| | - Maurizio Cecconi
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy
- Department of Anesthesia and Intensive Care Medicine, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
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Worku E, Schmidt M, Shekar K. Is It Time to Put Low-Flow Extracorporeal Carbon Dioxide Removal to REST? Crit Care Med 2023; 51:973-976. [PMID: 37318293 DOI: 10.1097/ccm.0000000000005889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- Elliott Worku
- Adult Intensive Care Services, the Prince Charles Hospital, Brisbane, QLD, Australia
| | - Matthieu Schmidt
- Médecine Intensive Réanimation, Institut de Cardiologie, Groupe Hospitalier Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris, Sorbonne-Université, Hôpital Pitié-Salpêtrière, Paris, France
- Sorbonne Université, INSERM, UMRS_1166-ICAN Institute of Cardiometabolism and Nutrition, Paris, France
| | - 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
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Tiruvoipati R, Akkanti B, Dinh K, Barrett N, May A, Kimmel J, Conrad SA. Extracorporeal Carbon Dioxide Removal With the Hemolung in Patients With Acute Respiratory Failure: A Multicenter Retrospective Cohort Study. Crit Care Med 2023; 51:892-902. [PMID: 36942957 PMCID: PMC10262985 DOI: 10.1097/ccm.0000000000005845] [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: 03/23/2023]
Abstract
OBJECTIVES Extracorporeal carbon dioxide removal (ECCO 2 R) devices are effective in reducing hypercapnia and mechanical ventilation support but have not been shown to reduce mortality. This may be due to case selection, device performance, familiarity, or the management. The objective of this study is to investigate the effectiveness and safety of a single ECCO 2 R device (Hemolung) in patients with acute respiratory failure and identify variables associated with survival that could help case selection in clinical practice as well as future research. DESIGN Multicenter, multinational, retrospective review. SETTING Data from the Hemolung Registry between April 2013 and June 2021, where 57 ICUs contributed deidentified data. PATIENTS Patients with acute respiratory failure treated with the Hemolung. The characteristics of patients who survived to ICU discharge were compared with those who died. Multivariable logistical regression analysis was used to identify variables associated with ICU survival. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Of the 159 patients included, 65 (41%) survived to ICU discharge. The survival was highest in status asthmaticus (86%), followed by acute respiratory distress syndrome (ARDS) (52%) and COVID-19 ARDS (31%). All patients had a significant reduction in Pa co2 and improvement in pH with reduction in mechanical ventilation support. Patients who died were older, had a lower Pa o2 :F io2 (P/F) and higher use of adjunctive therapies. There was no difference in the complications between patients who survived to those who died. Multivariable regression analysis showed non-COVID-19 ARDS, age less than 65 years, and P/F at initiation of ECCO 2 R to be independently associated with survival to ICU discharge (P/F 100-200 vs <100: odds ratio, 6.57; 95% CI, 2.03-21.33). CONCLUSIONS Significant improvement in hypercapnic acidosis along with reduction in ventilation supports was noted within 4 hours of initiating ECCO 2 R. Non-COVID-19 ARDS, age, and P/F at commencement of ECCO 2 R were independently associated with survival.
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Affiliation(s)
| | - Bindu Akkanti
- Department of Medicine, Division of Critical Care, Pulmonary and Sleep, University of Texas McGovern Medical School, Houston, TX
- Advanced Cardiopulmonary Therapeutics and Transplantation, University of Texas Health-Houston, Houston, TX
| | - Kha Dinh
- Department of Medicine, Division of Critical Care, Pulmonary and Sleep, University of Texas McGovern Medical School, Houston, TX
- Advanced Cardiopulmonary Therapeutics and Transplantation, University of Texas Health-Houston, Houston, TX
| | - Nicholas Barrett
- Department of Critical Care, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
- Centre for Human & Applied Physiological Sciences (CHAPS), School of Basic & Medical Biosciences, Faculty of Life Sciences & Medicine, King's College London, London, United Kingdom
| | | | | | - Steven A Conrad
- Department of Medicine, Louisiana State University Health Sciences Center, Shreveport, LA
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Rodrigues de Moraes L, Robba C, Battaglini D, Pelosi P, Rocco PRM, Silva PL. New and personalized ventilatory strategies in patients with COVID-19. Front Med (Lausanne) 2023; 10:1194773. [PMID: 37332761 PMCID: PMC10273276 DOI: 10.3389/fmed.2023.1194773] [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: 03/27/2023] [Accepted: 05/09/2023] [Indexed: 06/20/2023] Open
Abstract
Coronavirus disease (COVID-19) is caused by the severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) virus and may lead to severe respiratory failure and the need for mechanical ventilation (MV). At hospital admission, patients can present with severe hypoxemia and dyspnea requiring increasingly aggressive MV strategies according to the clinical severity: noninvasive respiratory support (NRS), MV, and the use of rescue strategies such as extracorporeal membrane oxygenation (ECMO). Among NRS strategies, new tools have been adopted for critically ill patients, with advantages and disadvantages that need to be further elucidated. Advances in the field of lung imaging have allowed better understanding of the disease, not only the pathophysiology of COVID-19 but also the consequences of ventilatory strategies. In cases of refractory hypoxemia, the use of ECMO has been advocated and knowledge on handling and how to personalize strategies have increased during the pandemic. The aims of the present review are to: (1) discuss the evidence on different devices and strategies under NRS; (2) discuss new and personalized management under MV based on the pathophysiology of COVID-19; and (3) contextualize the use of rescue strategies such as ECMO in critically ill patients with COVID-19.
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Affiliation(s)
- Lucas Rodrigues de Moraes
- Laboratory of Pulmonary Investigation, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Chiara Robba
- Unit of Anaesthesia and Intensive Care, San Martino Hospital (IRCCS), Genoa, Italy
| | - Denise Battaglini
- Unit of Anaesthesia and Intensive Care, San Martino Hospital (IRCCS), Genoa, Italy
| | - Paolo Pelosi
- Unit of Anaesthesia and Intensive Care, San Martino Hospital (IRCCS), Genoa, Italy
| | - Patricia R. M. Rocco
- Laboratory of Pulmonary Investigation, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Pedro Leme Silva
- Laboratory of Pulmonary Investigation, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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37
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Pippalapalli J, Lumb A. The respiratory system and acid-base disorders. BJA Educ 2023; 23:221-228. [PMID: 37223696 PMCID: PMC10201398 DOI: 10.1016/j.bjae.2023.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 03/01/2023] [Indexed: 05/25/2023] Open
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38
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Wong IMJ, Ferguson ND, Urner M. Invasive mechanical ventilation. Intensive Care Med 2023; 49:669-672. [PMID: 37115258 DOI: 10.1007/s00134-023-07079-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023]
Affiliation(s)
- Irene M J Wong
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Canada
| | - Niall D Ferguson
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Canada.
- Departments of Medicine and Physiology, University of Toronto, Toronto, Canada.
- Division of Respirology and Critical Care Medicine, Department of Medicine, University Health Network, Toronto, Canada.
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, Canada.
- Toronto General Research Institute, Toronto, Canada.
- Toronto General Hospital, 585 University Avenue, MaRS-9012, Toronto, ON, M5G 2N2, Canada.
| | - Martin Urner
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Canada
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, Canada
- Department of Anesthesia and Pain Management, University Health Network, Toronto, Canada
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39
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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: 0] [Impact Index Per Article: 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.
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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
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Maamar A, Delamaire F, Reizine F, Lesouhaitier M, Painvin B, Quelven Q, Coirier V, Guillot P, Tulzo YL, Tadié JM, Gacouin A. Impact of Arterial CO 2 Retention in Patients With Moderate or Severe ARDS. Respir Care 2023; 68:582-591. [PMID: 36977590 PMCID: PMC10171350 DOI: 10.4187/respcare.10507] [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: 03/30/2023]
Abstract
BACKGROUND Lung-protective ventilation (reduced tidal volume and limited plateau pressure) may lead to CO2 retention. Data about the impact of hypercapnia in patients with ARDS are scarce and conflicting. METHODS We performed a non-interventional cohort study with subjects with ARDS admitted from 2006 to 2021 and with PaO2 /FIO2 ≤ 150 mm Hg. We examined the association between severe hypercapnia (PaCO2 ≥ 50 mm Hg) on the first 5 days after the diagnosis of ARDS and death in ICU for 930 subjects. All the subjects received lung-protective ventilation. RESULTS Severe hypercapnia was noted in 552 subjects (59%) on the first day of ARDS (day 1); 323/930 (34.7%) died in the ICU. Severe hypercapnia on day 1 was associated with mortality in the unadjusted (odds ratio 1.54, 95% CI 1.16-1.63; P = .003) and adjusted (odds ratio 1.47, 95% CI 1.08-2.43; P = .004) models. In the Bayesian analysis, the posterior probability that severe hypercapnia was associated with ICU death was > 90% in 4 different priors, including a septic prior for this association. Sustained severe hypercapnia on day 5, defined as severe hypercapnia present from day 1 to day 5, was noted in 93 subjects (12%). After propensity score matching, severe hypercapnia on day 5 remained associated with ICU mortality (odds ratio 1.73, 95% CI 1.02-2.97; P = .047). CONCLUSIONS Severe hypercapnia was associated with mortality in subjects with ARDS who received lung-protective ventilation. Our results deserve further evaluation of the strategies and treatments that aim to control CO2 retention.
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Affiliation(s)
- Adel Maamar
- Centre Hospitalier Universitaire Rennes, Maladies Infectieuses et Réanimation Médicale, Rennes, France
- Université Rennes1, Faculté de Médecine, Biosit, Rennes, France
| | - Flora Delamaire
- Centre Hospitalier Universitaire Rennes, Maladies Infectieuses et Réanimation Médicale, Rennes, France
- Université Rennes1, Faculté de Médecine, Biosit, Rennes, France
| | - Florian Reizine
- Centre Hospitalier Universitaire Rennes, Maladies Infectieuses et Réanimation Médicale, Rennes, France
- Université Rennes1, Faculté de Médecine, Biosit, Rennes, France
- Inserm-CIC-1414, Faculté de Médecine, Université Rennes I, Rennes, France
| | - Mathieu Lesouhaitier
- Centre Hospitalier Universitaire Rennes, Maladies Infectieuses et Réanimation Médicale, Rennes, France
- Université Rennes1, Faculté de Médecine, Biosit, Rennes, France
- Inserm-CIC-1414, Faculté de Médecine, Université Rennes I, Rennes, France
| | - Benoit Painvin
- Centre Hospitalier Universitaire Rennes, Maladies Infectieuses et Réanimation Médicale, Rennes, France
- Université Rennes1, Faculté de Médecine, Biosit, Rennes, France
| | - Quentin Quelven
- Centre Hospitalier Universitaire Rennes, Maladies Infectieuses et Réanimation Médicale, Rennes, France
- Université Rennes1, Faculté de Médecine, Biosit, Rennes, France
| | - Valentin Coirier
- Centre Hospitalier Universitaire Rennes, Maladies Infectieuses et Réanimation Médicale, Rennes, France
- Université Rennes1, Faculté de Médecine, Biosit, Rennes, France
| | - Pauline Guillot
- Centre Hospitalier Universitaire Rennes, Maladies Infectieuses et Réanimation Médicale, Rennes, France
- Université Rennes1, Faculté de Médecine, Biosit, Rennes, France
| | - Yves Le Tulzo
- Centre Hospitalier Universitaire Rennes, Maladies Infectieuses et Réanimation Médicale, Rennes, France
- Université Rennes1, Faculté de Médecine, Biosit, Rennes, France
- Inserm-CIC-1414, Faculté de Médecine, Université Rennes I, Rennes, France
| | - Jean Marc Tadié
- Centre Hospitalier Universitaire Rennes, Maladies Infectieuses et Réanimation Médicale, Rennes, France
- Université Rennes1, Faculté de Médecine, Biosit, Rennes, France
- Inserm-CIC-1414, Faculté de Médecine, Université Rennes I, Rennes, France
| | - Arnaud Gacouin
- Centre Hospitalier Universitaire Rennes, Maladies Infectieuses et Réanimation Médicale, Rennes, France.
- Université Rennes1, Faculté de Médecine, Biosit, Rennes, France
- Inserm-CIC-1414, Faculté de Médecine, Université Rennes I, Rennes, France
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Hochberg CH, Sahetya SK. Laying the Groundwork for Physiology-Guided Precision Medicine in the Critically Ill. NEJM EVIDENCE 2023; 2:EVIDe2300051. [PMID: 38320026 DOI: 10.1056/evide2300051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
Canonical critical care syndromes such as sepsis and acute respiratory distress syndrome (ARDS) include patients with markedly heterogeneous biology.1 This, paired with decades of randomized controlled trials (RCTs) that were traditionally viewed as "negative," has stalled progress in improving patient outcomes.2 However, emerging awareness of sub-phenotypes based on differences in biomarker profiles and resulting heterogeneous treatment effects have led to calls for precision medicine in which therapies are targeted to those most likely to benefit.3.
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Affiliation(s)
- Chad H Hochberg
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University, Baltimore
| | - Sarina K Sahetya
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University, Baltimore
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Maccarrone V, Liou C, D'souza B, Salvatore MM, Leb J, Belletti A, Palumbo D, Landoni G, Capaccione KM. The Macklin effect closely correlates with pneumomediastinum in acutely ill intubated patients with COVID-19 infection. Clin Imaging 2023; 97:50-54. [PMID: 36889115 PMCID: PMC9984303 DOI: 10.1016/j.clinimag.2023.03.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 03/01/2023] [Indexed: 03/07/2023]
Abstract
PURPOSE Patients with COVID-19 infection are frequently found to have pulmonary barotrauma. Recent work has identified the Macklin effect as a radiographic sign that often occurs in patients with COVID-19 and may correlate with barotrauma. METHODS We evaluated chest CT scans in COVID-19 positive mechanically ventilated patients for the Macklin effect and any type of pulmonary barotrauma. Patient charts were reviewed to identify demographic and clinical characteristics. RESULTS The Macklin effect on chest CT scan was identified in a total of 10/75 (13.3%) COVID-19 positive mechanically ventilated patients; 9 developed barotrauma. Patients with the Macklin effect on chest CT scan had a 90% rate of pneumomediastinum (p < 0.001) and a trend toward a higher rate of pneumothorax (60%, p = 0.09). Pneumothorax was most frequently omolateral to the site of the Macklin effect (83.3%). CONCLUSION The Macklin effect may be a strong radiographic biomarker for pulmonary barotrauma, most strongly correlating with pneumomediastinum. Studies in ARDS patients without COVID-19 are needed to validate this sign in a broader population. If validated in a broad population, future critical care treatment algorithms may include the Macklin sign for clinical decision making and prognostication.
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Affiliation(s)
- Valerie Maccarrone
- Department of Radiology, Columbia University Irving Medical Center, New York, NY 10032, United States of America
| | - Connie Liou
- Department of Radiology, Columbia University Irving Medical Center, New York, NY 10032, United States of America
| | - Belinda D'souza
- Department of Radiology, Columbia University Irving Medical Center, New York, NY 10032, United States of America
| | - Mary M Salvatore
- Department of Radiology, Columbia University Irving Medical Center, New York, NY 10032, United States of America
| | - Jay Leb
- Department of Radiology, Columbia University Irving Medical Center, New York, NY 10032, United States of America
| | - Alessandro Belletti
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy
| | - Diego Palumbo
- Department of Radiology, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy
| | - Giovanni Landoni
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy; School of Medicine, Vita-Salute San Raffaele University, Via Olgettina 60, 20132 Milan, Italy
| | - Kathleen M Capaccione
- Department of Radiology, Columbia University Irving Medical Center, New York, NY 10032, United States of America.
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Brusatori S, Zinnato C, Busana M, Romitti F, Gattarello S, Palumbo MM, Pozzi T, Steinberg I, Palermo P, Lazzari S, Maj R, Velati M, D’Albo R, Wassong J, Meissner K, Lombardo F, Herrmann P, Quintel M, Moerer O, Camporota L, Marini JJ, Meissner K, Gattinoni L. High- versus Low-Flow Extracorporeal Respiratory Support in Experimental Hypoxemic Acute Lung Injury. Am J Respir Crit Care Med 2023; 207:1183-1193. [PMID: 36848321 PMCID: PMC10161753 DOI: 10.1164/rccm.202212-2194oc] [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] [Received: 12/01/2022] [Accepted: 02/21/2023] [Indexed: 02/28/2023] Open
Abstract
Rationale: In the EOLIA (ECMO to Rescue Lung Injury in Severe ARDS) trial, oxygenation was similar between intervention and conventional groups, whereas [Formula: see text]e was reduced in the intervention group. Comparable reductions in ventilation intensity are theoretically possible with low-flow extracorporeal CO2 removal (ECCO2R), provided oxygenation remains acceptable. Objectives: To compare the effects of ECCO2R and extracorporeal membrane oxygenation (ECMO) on gas exchange, respiratory mechanics, and hemodynamics in animal models of pulmonary (intratracheal hydrochloric acid) and extrapulmonary (intravenous oleic acid) lung injury. Methods: Twenty-four pigs with moderate to severe hypoxemia (PaO2:FiO2 ⩽ 150 mm Hg) were randomized to ECMO (blood flow 50-60 ml/kg/min), ECCO2R (0.4 L/min), or mechanical ventilation alone. Measurements and Main Results: [Formula: see text]o2, [Formula: see text]co2, gas exchange, hemodynamics, and respiratory mechanics were measured and are presented as 24-hour averages. Oleic acid versus hydrochloric acid showed higher extravascular lung water (1,424 ± 419 vs. 574 ± 195 ml; P < 0.001), worse oxygenation (PaO2:FiO2 = 125 ± 14 vs. 151 ± 11 mm Hg; P < 0.001), but better respiratory mechanics (plateau pressure 27 ± 4 vs. 30 ± 3 cm H2O; P = 0.017). Both models led to acute severe pulmonary hypertension. In both models, ECMO (3.7 ± 0.5 L/min), compared with ECCO2R (0.4 L/min), increased mixed venous oxygen saturation and oxygenation, and improved hemodynamics (cardiac output = 6.0 ± 1.4 vs. 5.2 ± 1.4 L/min; P = 0.003). [Formula: see text]o2 and [Formula: see text]co2, irrespective of lung injury model, were lower during ECMO, resulting in lower PaCO2 and [Formula: see text]e but worse respiratory elastance compared with ECCO2R (64 ± 27 vs. 40 ± 8 cm H2O/L; P < 0.001). Conclusions: ECMO was associated with better oxygenation, lower [Formula: see text]o2, and better hemodynamics. ECCO2R may offer a potential alternative to ECMO, but there are concerns regarding its effects on hemodynamics and pulmonary hypertension.
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Affiliation(s)
- Serena Brusatori
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
| | - Carmelo Zinnato
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
| | - Mattia Busana
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
| | - Federica Romitti
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
| | | | - Maria Michela Palumbo
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
| | - Tommaso Pozzi
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
| | - Irene Steinberg
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
| | - Paola Palermo
- IRCCS San Raffaele Scientific Institute, Milan, Italy
| | | | - Roberta Maj
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
| | - Mara Velati
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
| | - Rosanna D’Albo
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
| | - Jona Wassong
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
| | - Killian Meissner
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
| | - Fabio Lombardo
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
| | - Peter Herrmann
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
| | - Michael Quintel
- Department of Anesthesiology, Intensive Care and Emergency Medicine, Donau Isar Hospital Deggendorf, Deggendorf, Germany
| | - Onnen Moerer
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
| | - Luigi Camporota
- Department of Adult Critical Care, Guy’s and St. Thomas’ NHS Foundation Trust, Health Centre for Human and Applied Physiological Sciences, London, United Kingdom; and
| | - John J. Marini
- Department of Pulmonary and Critical Care Medicine, University of Minnesota and Regions Hospital, St. Paul, Minnesota
| | - Konrad Meissner
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
| | - Luciano Gattinoni
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
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Dianti J, McNamee JJ, Slutsky AS, Fan E, Ferguson ND, McAuley DF, Goligher EC. Determinants of Effect of Extracorporeal CO 2 Removal in Hypoxemic Respiratory Failure. NEJM EVIDENCE 2023; 2:EVIDoa2200295. [PMID: 38320056 DOI: 10.1056/evidoa2200295] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
Extracorporeal CO2 Removal in Respiratory FailureHeterogeneity among patients with a single diagnosis can mean that the headline result of a trial may obscure harms and benefits among subgroups. This study reports a retrospective analysis of a trial of extracorporeal carbon dioxide removal in respiratory failure testing for physiological determinants of the overall treatment effect.
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Affiliation(s)
- Jose Dianti
- Department of Medicine, Division of Respirology, University Health Network, University of Toronto, Toronto, ON
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON
| | - James J McNamee
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, United Kingdom
- Regional Intensive Care Unit, Royal Victoria Hospital, Belfast, United Kingdom
| | - Arthur S Slutsky
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON
| | - Eddy Fan
- Department of Medicine, Division of Respirology, University Health Network, University of Toronto, Toronto, ON
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON
- Toronto General Hospital Research Institute, Toronto, ON
- Institute of Health Policy, Management and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, ON
| | - Niall D Ferguson
- Department of Medicine, Division of Respirology, University Health Network, University of Toronto, Toronto, ON
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON
- Toronto General Hospital Research Institute, Toronto, ON
- Institute of Health Policy, Management and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, ON
- Department of Physiology, University of Toronto, Toronto, ON
| | - Daniel F McAuley
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, United Kingdom
- Regional Intensive Care Unit, Royal Victoria Hospital, Belfast, United Kingdom
| | - Ewan C Goligher
- Department of Medicine, Division of Respirology, University Health Network, University of Toronto, Toronto, ON
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON
- Toronto General Hospital Research Institute, Toronto, ON
- Department of Physiology, University of Toronto, Toronto, ON
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45
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Belletti A, Pallanch O, Bonizzoni MA, Guidi L, De Cobelli F, Landoni G, Zangrillo A, De Bonis M, Palumbo D. Clinical use of Macklin-like radiological sign (Macklin effect): A systematic review. Respir Med 2023; 210:107178. [PMID: 36863617 DOI: 10.1016/j.rmed.2023.107178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 02/26/2023] [Accepted: 02/27/2023] [Indexed: 03/04/2023]
Abstract
INTRODUCTION Recent studies suggested that Macklin sign is a predictor of barotrauma in patients with acute respiratory distress syndrome (ARDS). We performed a systematic review to further characterize the clinical role of Macklin. METHODS PubMed, Scopus, Cochrane Central Register and Embase were searched for studies reporting data on Macklin. Studies without data on chest CT, pediatric studies, non-human and cadaver studies, case reports and series including <5 patients were excluded. The primary objective was to assess the number of patients with Macklin sign and barotrauma. Secondary objectives were: occurrence of Macklin in different populations, clinical use of Macklin, prognostic impact of Macklin. RESULTS Seven studies enrolling 979 patients were included. Macklin was present in 4-22% of COVID-19 patients. It was associated with barotrauma in 124/138 (89.8%) of cases. Macklin sign preceded barotrauma in 65/69 cases (94.2%) 3-8 days in advance. Four studies used Macklin as pathophysiological explanation for barotrauma, two studies as a predictor of barotrauma and one as a decision-making tool. Two studies suggested that Macklin is a strong predictor of barotrauma in ARDS patients and one study used Macklin sign to candidate high-risk ARDS patients to awake extracorporeal membrane oxygenation (ECMO). A possible correlation between Macklin and worse prognosis was suggested in two studies on COVID-19 and blunt chest trauma. CONCLUSIONS Increasing evidence suggests that Macklin sign anticipate barotrauma in patients with ARDS and there are initial reports on use of Macklin as a decision-making tool. Further studies investigating the role of Macklin sign in ARDS are justified.
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Affiliation(s)
- Alessandro Belletti
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Ottavia Pallanch
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Matteo Aldo Bonizzoni
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Leonardo Guidi
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Francesco De Cobelli
- Department of Radiology, IRCCS San Raffaele Scientific Institute, Milan, Italy; School of Medicine, Vita-Salute San Raffaele University, Milan, Italy
| | - Giovanni Landoni
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy; School of Medicine, Vita-Salute San Raffaele University, Milan, Italy.
| | - Alberto Zangrillo
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy; School of Medicine, Vita-Salute San Raffaele University, Milan, Italy
| | - Michele De Bonis
- School of Medicine, Vita-Salute San Raffaele University, Milan, Italy; Department of Cardiac Surgery, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Diego Palumbo
- Department of Radiology, IRCCS San Raffaele Scientific Institute, Milan, Italy
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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 .
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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
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47
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Wang XX, Guo Y. [Recent research on extracorporeal carbon dioxide removal]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2023; 25:205-209. [PMID: 36854699 DOI: 10.7499/j.issn.1008-8830.2208187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
Extracorporeal carbon dioxide removal is an artificial lung auxiliary technique based on extrapulmonary gas exchange and can effectively remove carbon dioxide and provide oxygenation to a certain extent, and it is one of the effective treatment techniques for hypercapnia developed after mechanical ventilation and extracorporeal membrane oxygenation in recent years and has wide application prospect. This article elaborates on the development, working principle, advantages, classification, complications, and clinical application of extracorporeal carbon dioxide removal, so as to provide a new choice for extracorporeal carbon dioxide removal in clinical practice.
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Affiliation(s)
- Xiao-Xin Wang
- Neonatal Medical Center, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - Yan Guo
- Neonatal Medical Center, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
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48
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Saville BR, Detry MA, Viele K. Conditional Power: How Likely Is Trial Success? JAMA 2023; 329:508-509. [PMID: 36689237 DOI: 10.1001/jama.2022.25080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
This JAMA Guide to Statistics and Methods article examines conditional power, calculated while a trial is ongoing and based on both the currently observed data and an assumed treatment effect for future patients.
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Affiliation(s)
- Benjamin R Saville
- Berry Consultants LLC, Austin, Texas
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, Tennessee
| | | | - Kert Viele
- Berry Consultants LLC, Austin, Texas
- Department of Biostatistics, University of Kentucky, Lexington
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49
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Zheng M. Dead space ventilation-related indices: bedside tools to evaluate the ventilation and perfusion relationship in patients with acute respiratory distress syndrome. Crit Care 2023; 27:46. [PMID: 36732812 PMCID: PMC9894747 DOI: 10.1186/s13054-023-04338-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 01/30/2023] [Indexed: 02/04/2023] Open
Abstract
Cumulative evidence has demonstrated that the ventilatory ratio closely correlates with mortality in acute respiratory distress syndrome (ARDS), and a primary feature in coronavirus disease 2019 (COVID-19)-ARDS is increased dead space that has been reported recently. Thus, new attention has been given to this group of dead space ventilation-related indices, such as physiological dead space fraction, ventilatory ratio, and end-tidal-to-arterial PCO2 ratio, which, albeit distinctive, are all global indices with which to assess the relationship between ventilation and perfusion. These parameters have already been applied to positive end expiratory pressure titration, prediction of responses to the prone position and the field of extracorporeal life support for patients suffering from ARDS. Dead space ventilation-related indices remain hampered by several deflects; notwithstanding, for this catastrophic syndrome, they may facilitate better stratifications and identifications of subphenotypes, thereby providing therapy tailored to individual needs.
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Affiliation(s)
- Mingjia Zheng
- Department of Respiratory and Critical Care Medicine, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, No. 1558, Sanhuan North Road, Wuxing, Huzhou, Zhejiang, People's Republic of China.
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50
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Extracorporeal Carbon Dioxide Removal: From Pathophysiology to Clinical Applications; Focus on Combined Continuous Renal Replacement Therapy. Biomedicines 2023; 11:biomedicines11010142. [PMID: 36672649 PMCID: PMC9855411 DOI: 10.3390/biomedicines11010142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/29/2022] [Accepted: 12/31/2022] [Indexed: 01/08/2023] Open
Abstract
Lung-protective ventilation (LPV) with low tidal volumes can significantly increase the survival of patients with acute respiratory distress syndrome (ARDS) by limiting ventilator-induced lung injuries. However, one of the main concerns regarding the use of LPV is the risk of developing hypercapnia and respiratory acidosis, which may limit the clinical application of this strategy. This is the reason why different extracorporeal CO2 removal (ECCO2R) techniques and devices have been developed. They include low-flow or high-flow systems that may be performed with dedicated platforms or, alternatively, combined with continuous renal replacement therapy (CRRT). ECCO2R has demonstrated effectiveness in controlling PaCO2 levels, thus allowing LPV in patients with ARDS from different causes, including those affected by Coronavirus disease 2019 (COVID-19). Similarly, the suitability and safety of combined ECCO2R and CRRT (ECCO2R-CRRT), which provides CO2 removal and kidney support simultaneously, have been reported in both retrospective and prospective studies. However, due to the complexity of ARDS patients and the limitations of current evidence, the actual impact of ECCO2R on patient outcome still remains to be defined. In this review, we discuss the main principles of ECCO2R and its clinical application in ARDS patients, in particular looking at clinical experiences of combined ECCO2R-CRRT treatments.
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