1
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Pasero D, Pistidda L, Piredda D, Liperi C, Cossu A, Esposito R, Muroni A, Mereu C, Rum C, Branca GP, Mulas F, Puci M, Sotgiu G, Terragni P. Lung (extracorporeal CO 2 removal) and renal (continuous renal replacement therapy) support: the role of ultraprotective strategy in Covid 19 and non-Covid 19 ARDS. A case-control study. JOURNAL OF ANESTHESIA, ANALGESIA AND CRITICAL CARE 2024; 4:27. [PMID: 38671540 PMCID: PMC11055375 DOI: 10.1186/s44158-024-00164-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 04/18/2024] [Indexed: 04/28/2024]
Abstract
BACKGROUND Preliminary studies suggest that moderate ARDS and acute renal failure might benefit from extracorporeal CO2 removal (ECCO2R) coupled with CRRT. However, evidence is limited and potential for this coupled treatment may need to be explored. The aim of the present study was to evaluate whether a protective driving pressure was obtained applying low-flow ECCO2-R plus CRRT in patients affected by moderate ARDS with COVID-19 compared to an historical group without COVID-19. METHODS A case-control study has been conducted comparing a group of consecutive moderate ARDS patients presenting AKI and affected by COVID-19, who needed low-flow ECCO2-R plus CRRT to achieve an ultra-protective ventilatory strategy, with historical group without COVID-19 that matched for clinical presentation and underwent the same ultra-protective treatment. VT was set at 6 mL/kg predicted body weight then ECCO2R was assessed to facilitate ultra-protective low VT ventilation to preserve safe Pplat and low driving pressure. RESULTS ECCO2R+CRRT reduced the driving pressure from 17 (14-18) to 11.5 (10-15) cmH2O (p<0.0004) in the fourteen ARDS patients by decreasing VT from 6.7 ml/kg PBW (6.1-6.9) to 5.1 (4.2-5.6) after 1 hour (p <0.0001). In the ARDS patients with COVID-19, the driving pressure reduction was more effective from baseline 18 (14-24) cmH2O to 11 (10-15) cmH2O (p<0.004), compared to the control group from 15 (13-17) to 12(10-16) cmH2O (p< 0.03), after one hour. ECCO2R+CRRT did not affected 28 days mortality in the two groups, while we observed a shorter duration of mechanical ventilation (19 {7-29} vs 24 {22-38} days; p=0.24) and ICU length of stay (19 {7-29} vs 24 {22-78} days; p=0.25) in moderate ARDS patients with COVID-19 compared to control group. CONCLUSIONS In moderate ARDS patients with or without COVID-19 disease, ECCO2R+CRRT may be and effective supportive treatment to reach protective values of driving pressure unless severe oxygenation defects arise requiring ECMO therapy initiation.
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Affiliation(s)
- Daniela Pasero
- Anesthesia and General Intensive Care Unit, AOU Sassari, Sassari, Italy.
- Department of Medicine, Surgery and Pharmacy, University of Sassari, A.O.U Sassari, Viale San Pietro 43, 07100, Sassari, Italy.
| | - Laura Pistidda
- Anesthesia and General Intensive Care Unit, AOU Sassari, Sassari, Italy
- Department of Medicine, Surgery and Pharmacy, University of Sassari, A.O.U Sassari, Viale San Pietro 43, 07100, Sassari, Italy
| | - Davide Piredda
- Anesthesia and General Intensive Care Unit, AOU Sassari, Sassari, Italy
| | - Corrado Liperi
- Anesthesia and General Intensive Care Unit, AOU Sassari, Sassari, Italy
| | - Andrea Cossu
- Anesthesia and General Intensive Care Unit, AOU Sassari, Sassari, Italy
| | | | - Angela Muroni
- Anesthesia and General Intensive Care Unit, AOU Sassari, Sassari, Italy
| | - Cristiano Mereu
- Anesthesia and General Intensive Care Unit, AOU Sassari, Sassari, Italy
| | - Carlino Rum
- Anesthesia and General Intensive Care Unit, AOU Sassari, Sassari, Italy
| | | | - Franco Mulas
- Anesthesia and General Intensive Care Unit, AOU Sassari, Sassari, Italy
| | - Mariangela Puci
- Department of Medicine, Surgery and Pharmacy, University of Sassari, A.O.U Sassari, Viale San Pietro 43, 07100, Sassari, Italy
- Clinical Epidemiology and Medical Statistics Unit, University of Sassari, Sassari, Italy
| | - Giovanni Sotgiu
- Department of Medicine, Surgery and Pharmacy, University of Sassari, A.O.U Sassari, Viale San Pietro 43, 07100, Sassari, Italy
- Clinical Epidemiology and Medical Statistics Unit, University of Sassari, Sassari, Italy
| | - Pierpaolo Terragni
- Anesthesia and General Intensive Care Unit, AOU Sassari, Sassari, Italy
- Department of Medicine, Surgery and Pharmacy, University of Sassari, A.O.U Sassari, Viale San Pietro 43, 07100, Sassari, Italy
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2
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Gerhardinger F, Fisser C, Malfertheiner MV, Philipp A, Foltan M, Zeman F, Stadlbauer A, Wiest C, Lunz D, Müller T, Lubnow M. Prevalence and Risk Factors for Weaning Failure From Venovenous Extracorporeal Membrane Oxygenation in Patients With Severe Acute Respiratory Insufficiency. Crit Care Med 2024; 52:54-67. [PMID: 37665263 DOI: 10.1097/ccm.0000000000006041] [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: 09/05/2023]
Abstract
OBJECTIVE Analysis of the prevalence and risk factors for weaning failure from venovenous extracorporeal membrane oxygenation (VV-ECMO) in patients with severe acute respiratory insufficiency. DESIGN Single-center retrospective observational study. SETTING Sixteen beds medical ICU at the University Hospital Regensburg. PATIENTS Two hundred twenty-seven patients with severe acute respiratory insufficiency requiring VV-ECMO support between October 2011 and December 2017. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Patients meeting our ECMO weaning criteria (Sp o2 ≥ 90% with F io2 ≤ 0.4 or Pa o2 /F io2 > 150 mm Hg, pH = 7.35-7.45, positive end-expiratory pressure ≤ 10 cm H 2 O, driving pressure < 15 cm H 2 O, respiratory rate < 30/min, tidal volume > 5 mL/kg, ECMO bloodflow ≈ 1. 5 L/min, sweep gas flow ≈ 1 L/min, heart rate < 120/min, systolic blood pressure 90-160 mm Hg, norepinephrine < 0.2 µg/[kg*min]) underwent an ECMO weaning trial (EWT) with pausing sweep gas flow. Arterial blood gas analysis, respiratory and ventilator parameters were recorded prior, during, and after EWTs. Baseline data, including demographics, vitals, respiratory, ventilator, and laboratory parameters were recorded at the time of cannulation. One hundred seventy-nine of 227 (79%) patients were successfully decannulated. Ten patients (4%) underwent prolonged weaning of at least three failed EWTs before successful decannulation. The respiratory rate (19/min vs 16/min, p = 0.002) and Pa co2 (44 mm Hg vs 40 mm Hg, p = 0.003) were higher before failed than successful EWTs. Both parameters were risk factors for ECMO weaning failure (Pa co2 : odds ratio [OR] 1.05; 95% CI, 1.001-1.10; p = 0.045; respiratory rate: OR 1.10; 95% CI, 1.04-1.15; p < 0.001) in multivariable analysis. The rapid shallow breathing index [42 (1/L*min), vs 35 (1/L*min), p = 0.052) was higher before failed than successful EWTs. The decline of Sa o2 and Pa o2 /F io2 during EWTs was higher in failed than successful trials. CONCLUSIONS Seventy-nine percent of patients were successfully decannulated with only 4% needing prolonged ECMO weaning. Before EWT only parameters of impaired ventilation (insufficient decarboxylation, higher respiratory rate) but not of oxygenation were predictive for weaning failure, whereas during EWT-impaired oxygenation was associated with weaning failure.
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Affiliation(s)
- Felix Gerhardinger
- Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
| | - Christoph Fisser
- Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
| | | | - Alois Philipp
- Department of Cardiothoracic Surgery, University Hospital Regensburg, Regensburg, Germany
| | - Maik Foltan
- Department of Cardiothoracic Surgery, University Hospital Regensburg, Regensburg, Germany
| | - Florian Zeman
- Center for Clinical Studies, University Hospital Regensburg, Regensburg, Germany
| | - Andrea Stadlbauer
- Department of Cardiothoracic Surgery, University Hospital Regensburg, Regensburg, Germany
| | - Clemens Wiest
- Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
| | - Dirk Lunz
- Department of Anesthesiology, University Hospital Regensburg, Regensburg, Germany
| | - Thomas Müller
- Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
| | - Matthias Lubnow
- Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
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3
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Rambaud J, Broman LM, Chevret S, Visconti F, Leger PL, Guner Y, Butragueño-Laiseca L, Piloquet JE, Di Nardo M. Association between pediatric intensive care mortality and mechanical ventilation settings during extracorporeal membrane oxygenation for pediatric acute respiratory distress syndrome. Eur J Pediatr 2023; 182:4487-4497. [PMID: 37491617 DOI: 10.1007/s00431-023-05119-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/11/2023] [Accepted: 07/15/2023] [Indexed: 07/27/2023]
Abstract
The main objective of this study was to describe the current mechanical ventilation (MV) settings during extracorporeal membrane oxygenation (ECMO) for pediatric acute respiratory distress syndrome (P-ARDS) in six European centers. This is a retrospective observational cohort study performed in six European centers from January 2009 to December 2019. Children > 1 month to 18 years supported with ECMO for refractory P-ARDS were included. Collected data were as follows: patients' pre-ECMO medical condition, pre-ECMO adjunctive therapies for P-ARDS, pre-ECMO and during ECMO MV settings on day (D) 1, D3, D7, and D14 of ECMO, use of adjunctive therapies during ECMO, duration of ECMO, pediatric intensive care unit length of stay, and survival. A total of 255 patients with P-ARDS were included. The multivariate analysis showed that PEEP on D1 (OR = 1.13, 95% CI [1.03-1.24], p = 0.01); D3 (OR = 1.17, 95% CI [1.06-1.29], p = 0.001); and D14 (OR = 1.21, 95% CI [1.05-1.43], p = 0.02) and DP on D7 were significantly associated with higher odds of mortality (OR = 0.82, 95% CI [0.71-0.92], p = 0.001). Moreover, DP on D1 above 15 cmH2O (OR 2.23, 95% CI (1.09-4.71), p = 0.03) and native lung FiO2 above 60% on D14 (OR 10.36, 95% CI (1.51-116.15), p = 0.03) were significantly associated with higher odds of mortality. Conclusion: MV settings during ECMO for P-ARDS varied among centers; however, use of high PEEP levels during ECMO was associated with higher odds of mortality as well as a DP above 15 cmH2O and a native lung FiO2 above 60% on D14 of ECMO. What is Known: • Invasive ventilation settings are well defined for pediatric acute respiratory distress syndrome; however, once the children required an extracorporeal respiratory support, there is no recommendation how to set the mechanical ventilator. • Impact of invasive ventilator during extracorporeal respiratory support ad only been during the first days of this support but the effects of these settings later in the assistance are not described. What is New: • It seems to be essential to early decrease FiO2 on native lung once the ECMO flow allows an efficient oxygenation. • Tight control to limit the driving pressure at 15 cmH20 during ECMO run seems to be associated with better survival rate.
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Affiliation(s)
- Jerome Rambaud
- Pediatric and Neonatal Intensive Care Unit, Armand-Trousseau Hospital, Sorbonne University, Paris, France.
| | - Lars M Broman
- ECMO Centre Karolinska, Karolinska University Hospital, Stockholm, Sweden
| | | | - Federico Visconti
- Anaesthesia and Intensive Care, Padova University Hospital, Padua, Italy
| | - Pierre-Louis Leger
- Pediatric and Neonatal Intensive Care Unit, Armand-Trousseau Hospital, Sorbonne University, Paris, France
| | - Yigit Guner
- Division of Pediatric Surgery, Children's Hospital of Orange County, Orange, CA, USA
| | - Laura Butragueño-Laiseca
- Pediatric Intensive Care Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Jean-Eudes Piloquet
- Pediatric and Neonatal Intensive Care Unit, Nantes Universitary Hospital, Nantes, France
| | - Matteo Di Nardo
- Pediatric Intensive Care Unit, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
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4
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Grotberg JC, Reynolds D, Kraft BD. Management of severe acute respiratory distress syndrome: a primer. Crit Care 2023; 27:289. [PMID: 37464381 DOI: 10.1186/s13054-023-04572-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 07/10/2023] [Indexed: 07/20/2023] Open
Abstract
This narrative review explores the physiology and evidence-based management of patients with severe acute respiratory distress syndrome (ARDS) and refractory hypoxemia, with a focus on mechanical ventilation, adjunctive therapies, and veno-venous extracorporeal membrane oxygenation (V-V ECMO). Severe ARDS cases increased dramatically worldwide during the Covid-19 pandemic and carry a high mortality. The mainstay of treatment to improve survival and ventilator-free days is proning, conservative fluid management, and lung protective ventilation. Ventilator settings should be individualized when possible to improve patient-ventilator synchrony and reduce ventilator-induced lung injury (VILI). Positive end-expiratory pressure can be individualized by titrating to best respiratory system compliance, or by using advanced methods, such as electrical impedance tomography or esophageal manometry. Adjustments to mitigate high driving pressure and mechanical power, two possible drivers of VILI, may be further beneficial. In patients with refractory hypoxemia, salvage modes of ventilation such as high frequency oscillatory ventilation and airway pressure release ventilation are additional options that may be appropriate in select patients. Adjunctive therapies also may be applied judiciously, such as recruitment maneuvers, inhaled pulmonary vasodilators, neuromuscular blockers, or glucocorticoids, and may improve oxygenation, but do not clearly reduce mortality. In select, refractory cases, the addition of V-V ECMO improves gas exchange and modestly improves survival by allowing for lung rest. In addition to VILI, patients with severe ARDS are at risk for complications including acute cor pulmonale, physical debility, and neurocognitive deficits. Even among the most severe cases, ARDS is a heterogeneous disease, and future studies are needed to identify ARDS subgroups to individualize therapies and advance care.
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Affiliation(s)
- John C Grotberg
- Division of Pulmonary and Critical Care Medicine, Washington University School of Medicine, 660 S. Euclid Ave, St. Louis, MO, 63110, USA.
| | - Daniel Reynolds
- Division of Pulmonary and Critical Care Medicine, Washington University School of Medicine, 660 S. Euclid Ave, St. Louis, MO, 63110, USA
| | - Bryan D Kraft
- Division of Pulmonary and Critical Care Medicine, Washington University School of Medicine, 660 S. Euclid Ave, St. Louis, MO, 63110, USA
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5
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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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6
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Extracorporeal CO 2 Removal During Renal Replacement Therapy to Allow Lung-Protective Ventilation in Patients With COVID-19-Associated Acute Respiratory Distress Syndrome. ASAIO J 2023; 69:36-42. [PMID: 35998214 PMCID: PMC9797119 DOI: 10.1097/mat.0000000000001803] [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] [Indexed: 02/04/2023] Open
Abstract
The aim of this retrospective multicenter observational study is to test the feasibility and safety of a combined extracorporeal CO 2 removal (ECCO 2 R) plus renal replacement therapy (RRT) system to use an ultraprotective ventilator setting while maintaining (1) an effective support of renal function and (2) values of pH within the physiologic limits in a cohort of coronavirus infectious disease 2019 (COVID-19) patients. Among COVID-19 patients admitted to the intensive care unit of 9 participating hospitals, 27 patients with acute respiratory distress syndrome (ARDS) and acute kidney injury (AKI) requiring invasive mechanical ventilation undergoing ECCO 2 R-plus-RRT treatment were included in the analysis. The treatment allowed to reduce V T from 6.0 ± 0.6 mL/kg at baseline to 4.8 ± 0.8, 4.6 ± 1.0, and 4.3 ± 0.3 mL/kg, driving pressure (ΔP) from 19.8 ± 2.5 cm H 2 O to 14.8 ± 3.6, 14.38 ± 4.1 and 10.2 ± 1.6 cm H 2 O after 24 hours, 48 hours, and at discontinuation of ECCO 2 R-plus-RRT (T3), respectively ( p < 0.001). PaCO 2 and pH remained stable. Plasma creatinine decreased over the study period from 3.30 ± 1.27 to 1.90 ± 1.30 and 1.27 ± 0.90 mg/dL after 24 and 48 hours of treatment, respectively ( p < 0.01). No patient-related events associated with the extracorporeal system were reported. These data show that in patients with COVID-19-induced ARDS and AKI, ECCO 2 R-plus-RRT is effective in allowing ultraprotective ventilator settings while maintaining an effective support of renal function and values of pH within physiologic limits.
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7
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Zochios V, Brodie D, Shekar K, Schultz MJ, Parhar KKS. Invasive mechanical ventilation in patients with acute respiratory distress syndrome receiving extracorporeal support: a narrative review of strategies to mitigate lung injury. Anaesthesia 2022; 77:1137-1151. [PMID: 35864561 DOI: 10.1111/anae.15806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/21/2022] [Indexed: 11/28/2022]
Abstract
Veno-venous extracorporeal membrane oxygenation is indicated in patients with acute respiratory distress syndrome and severely impaired gas exchange despite evidence-based lung protective ventilation, prone positioning and other parts of the standard algorithm for treating such patients. Extracorporeal support can facilitate ultra-lung-protective ventilation, meaning even lower volumes and pressures than standard lung-protective ventilation, by directly removing carbon dioxide in patients needing injurious ventilator settings to maintain sufficient gas exchange. Injurious ventilation results in ventilator-induced lung injury, which is one of the main determinants of mortality in acute respiratory distress syndrome. Marked reductions in the intensity of ventilation to the lowest tolerable levels under extracorporeal support may be achieved and could thereby potentially mitigate ventilator-induced lung injury and theoretically patient self-inflicted lung injury in spontaneously breathing patients with high respiratory drive. However, the benefits of this strategy may be counterbalanced by the use of continuous deep sedation and even neuromuscular blocking drugs, which may impair physical rehabilitation and impact long-term outcomes. There are currently a lack of large-scale prospective data to inform optimal invasive ventilation practices and how to best apply a holistic approach to patients receiving veno-venous extracorporeal membrane oxygenation, while minimising ventilator-induced and patient self-inflicted lung injury. We aimed to review the literature relating to invasive ventilation strategies in patients with acute respiratory distress syndrome receiving extracorporeal support and discuss personalised ventilation approaches and the potential role of adjunctive therapies in facilitating lung protection.
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Affiliation(s)
- V Zochios
- Department of Cardiothoracic Critical Care Medicine and ECMO, Glenfield Hospital, University Hospitals of Leicester National Health Service Trust, Leicester, UK.,Department of Cardiovascular Sciences, University of Leicester, UK
| | - D Brodie
- Columbia University College of Physicians and Surgeons, New York, NY, USA.,Centre for Acute Respiratory Failure, New York-Presbyterian Hospital, New York, NY, USA
| | - K Shekar
- Adult Intensive Care Services and Critical Care Research Group, The Prince Charles Hospital, Brisbane, QLD, Australia.,Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia.,Faculty of Medicine, University of Queensland, Brisbane and Bond University, Goldcoast, QLD, Australia
| | - M J Schultz
- Department of Intensive Care, Amsterdam University Medical Centres, Amsterdam, the Netherlands.,Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand.,Nuffield Department of Medicine, Oxford University, Oxford, UK.,Department of Medical Affairs, Hamilton Medical AG, Bonaduz, Switzerland
| | - K K S Parhar
- Department of Critical Care Medicine, University of Calgary and Alberta Health Services, Calgary, AB, Canada
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8
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Chiumello D, Pozzi T, Mereto E, Fratti I, Chiodaroli E, Gattinoni L, Coppola S. Long term feasibility of ultraprotective lung ventilation with low-flow extracorporeal carbon dioxide removal in ARDS patients. J Crit Care 2022; 71:154092. [PMID: 35714453 DOI: 10.1016/j.jcrc.2022.154092] [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: 02/16/2022] [Revised: 05/02/2022] [Accepted: 05/26/2022] [Indexed: 11/19/2022]
Abstract
PURPOSE To explore the feasibility of long-term application of ultraprotective ventilation with low flow ECCO2R support in moderate-severe ARDS patients and the reduction of mechanical power (MP) compared to lung protective ventilation. MATERIAL AND METHODS ARDS patients with PaO2/FiO2 < 200, PEEP of 10 cmH2O, tidal volume 6 ml/Kg of predicted body weight (PBW), plateau pressure > 24 cmH2O, MP > 17 J/min were prospectively enrolled. After 2 h tidal volume was reduced to 4-5 ml/kg, respiratory rate (RR) and PEEP were changed to maintain similar minute ventilation and mean airway pressure (MAP) to those obtained at baseline. After 2 h, ECCO2R support was started, RR was decreased and PEEP was increased to maintain similar PaCO2 and MAP, respectively. RESULTS The only reduction of tidal volume with the increase in RR did not decrease MP. The application of low flow ECCO2R support allowed a reduction of RR from 25 [24-30] to 11 [9-14] bpm and MP from 18 [13-23] to 8 [7-11] J/min. During the following 5 days no changes in mechanics variables and gas exchange occurred. CONCLUSIONS The application of low flow ECCO2R support with ultraprotective ventilation was feasible minimizing the MP without deterioration in oxygenation in ARDS patients.
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Affiliation(s)
- Davide Chiumello
- Department of Anesthesia and Intensive Care, ASST Santi Paolo e Carlo, San Paolo University Hospital, Via Di Rudini 9, Milan, Italy; Department of Health Sciences, University of Milan, Milano, Italy; Coordinated Research Center on Respiratory Failure, University of Milan, Milan, Italy.
| | - Tommaso Pozzi
- Department of Health Sciences, University of Milan, Milano, Italy
| | - Elisa Mereto
- Department of Health Sciences, University of Milan, Milano, Italy
| | - Isabella Fratti
- Department of Health Sciences, University of Milan, Milano, Italy
| | - Elena Chiodaroli
- Department of Anesthesia and Intensive Care, ASST Santi Paolo e Carlo, San Paolo University Hospital, Via Di Rudini 9, Milan, Italy
| | - Luciano Gattinoni
- Department of Anesthesiology, University Medical Center of Göttingen, Göttingen, Germany
| | - Silvia Coppola
- Department of Anesthesia and Intensive Care, ASST Santi Paolo e Carlo, San Paolo University Hospital, Via Di Rudini 9, Milan, Italy
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9
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Fior G, Colon ZFV, Peek GJ, Fraser JF. Mechanical Ventilation during ECMO: Lessons from Clinical Trials and Future Prospects. Semin Respir Crit Care Med 2022; 43:417-425. [PMID: 35760300 DOI: 10.1055/s-0042-1749450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Acute Respiratory Distress Syndrome (ARDS) accounts for 10% of ICU admissions and affects 3 million patients each year. Despite decades of research, it is still associated with one of the highest mortality rates in the critically ill. Advances in supportive care, innovations in technologies and insights from recent clinical trials have contributed to improved outcomes and a renewed interest in the scope and use of Extracorporeal life support (ECLS) as a treatment for severe ARDS, including high flow veno-venous Extracorporeal Membrane Oxygenation (VV-ECMO) and low flow Extracorporeal Carbon Dioxide Removal (ECCO2R). The rationale being that extracorporeal gas exchange allows the use of lung protective ventilator settings, thereby minimizing ventilator-induced lung injury (VILI). Ventilation strategies are adapted to the patient's condition during the different stages of ECMO support. Several areas in the management of mechanical ventilation in patients on ECMO, such as the best ventilator mode, extubation-decannulation sequence and tracheostomy timing, are tailored to the patients' recovery. Reduction in sedation allowing mobilization, nutrition and early rehabilitation are subsequent therapeutic goals after lung rest has been achieved.
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Affiliation(s)
- Gabriele Fior
- Critical Care Research Group, The Prince Charles Hospital, Brisbane, QLD, Australia.,Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia
| | - Zasha F Vazquez Colon
- Department of Pediatrics, Division of Pediatric Critical Care, University of Florida, Shands Children's Hospital, Gainesville, Florida
| | - Giles J Peek
- Department of Surgery, Congenital Heart Center, Shands Children's Hospital, Gainesville, University of Florida, Gainesville, Florida
| | - John F Fraser
- Critical Care Research Group, The Prince Charles Hospital, Brisbane, QLD, Australia.,Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia.,Intensive Care Unit, St Andrew's War Memorial Hospital and The Wesley Hospital, Uniting Care Hospitals, Brisbane, QLD, Australia
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10
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Abrams D, Agerstrand C, Beitler JR, Karagiannidis C, Madahar P, Yip NH, Pesenti A, Slutsky AS, Brochard L, Brodie D. Risks and Benefits of Ultra-Lung-Protective Invasive Mechanical Ventilation Strategies with a Focus on Extracorporeal Support. Am J Respir Crit Care Med 2022; 205:873-882. [PMID: 35044901 DOI: 10.1164/rccm.202110-2252cp] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Lung-protective ventilation strategies are the current standard of care for patients with acute respiratory distress syndrome (ARDS) in an effort to provide adequate ventilatory requirements while minimizing ventilator-induced lung injury. Some patients may benefit from ultra-lung-protective ventilation, a strategy that achieves lower airway pressures and tidal volumes than the current standard. Specific physiological parameters beyond severity of hypoxemia, such as driving pressure and respiratory system elastance, may be predictive of those most likely to benefit. Since application of ultra-lung-protective ventilation is often limited by respiratory acidosis, extracorporeal membrane oxygenation (ECMO) or extracorporeal carbon dioxide removal (ECCO2R), which remove carbon dioxide from blood, are attractive options. These strategies are associated with hematological complications, especially when applied at low blood flow rates with devices designed for higher blood flows, and a recent large randomized, controlled trial failed to show a benefit from an ECCO2R-facilitated ultra-lung-protective ventilation strategy. Only in patients with very severe forms of ARDS has the use of an ultra-lung-protective ventilation strategy - accomplished with ECMO - been suggested to have a favorable risk-to-benefit profile. In this Critical Care Perspective, we address key areas of controversy related to ultra-lung-protective ventilation, including the trade-offs between minimizing ventilator-induced lung injury and the risks from strategies to achieve this added protection. In addition, we suggest which patients might benefit most from an ultra-lung-protective strategy and propose areas of future research.
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Affiliation(s)
- Darryl Abrams
- Columbia University Medical Center, Medicine, Division of Pulmonary, Allergy, & Critical Care, New York, New York, United States
| | - Cara Agerstrand
- Columbia University Medical Center, Medicine, Division of Pulmonary, Allergy, & Critical Care, New York, New York, United States
| | - Jeremy R Beitler
- Columbia University College of Physicians and Surgeons, 12294, Center for Acute Respiratory Failure and Division of Pulmonary, Allergy, and Critical Care Medicine, New York, New York, United States.,NewYork-Presbyterian Hospital, 25065, New York, New York, United States
| | - Christian Karagiannidis
- Hospital Cologne-Merheim, 61060, Department of Pneumology and Critical Care Medicine, Koln, Germany.,Witten/Herdecke University, 12263, Cologne, Germany
| | - Purnema Madahar
- Columbia University Medical Center, Medicine, Division of Pulmonary, Allergy, & Critical Care, New York, New York, United States
| | - Natalie H Yip
- Columbia University Medical Center, Dept of Medicine Pulmonary, New York City, New York, United States
| | - Antonio Pesenti
- Universita degli Studi di Milano, 9304, Department of Pathophysiology and Transplantation, Milano, Italy
| | | | - Laurent Brochard
- St Michael's Hospital in Toronto, Li Ka Shing Knowledge Institute, Keenan Research Centre, Toronto, Ontario, Canada.,University of Toronto, 7938, Interdepartmental Division of Critical Care Medicine, Toronto, Ontario, Canada
| | - Daniel Brodie
- Columbia, Critical Care, New York, New York, United States;
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11
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Positive End-Expiratory Pressure and Respiratory Rate Modify the Association of Mechanical Power and Driving Pressure With Mortality Among Patients With Acute Respiratory Distress Syndrome. Crit Care Explor 2021; 3:e0583. [PMID: 34909696 PMCID: PMC8663805 DOI: 10.1097/cce.0000000000000583] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Supplemental Digital Content is available in the text. IMPORTANCE: Mechanical power and driving pressure have known associations with survival for patients with acute respiratory distress syndrome. OBJECTIVES: To further understand the relative importance of mechanical power and driving pressure as clinical targets for ventilator management. DESIGN: Secondary observational analysis of randomized clinical trial data. SETTING AND PARTICIPANTS: Patients with the acute respiratory distress syndrome from three Acute Respiratory Distress Syndrome Network trials. MAIN OUTCOMES AND MEASURES: After adjusting for patient severity in a multivariate Cox proportional hazards model, we examined the relative association of driving pressure and mechanical power with hospital mortality. Among 2,410 patients, the relationship between driving pressure and mechanical power with mortality was modified by respiratory rate, positive end-expiratory pressure, and flow. RESULTS: Among patients with low respiratory rate (< 26), only power was significantly associated with mortality (power [hazard ratio, 1.82; 95% CI, 1.41–2.35; p < 0.001] vs driving pressure [hazard ratio, 1.01; 95% CI, 0.84–1.21; p = 0.95]), while among patients with high respiratory rate, neither was associated with mortality. Both power and driving pressure were associated with mortality at high airway flow (power [hazard ratio, 1.28; 95% CI, 1.15–1.43; p < 0.001] vs driving pressure [hazard ratio, 1.15; 95% CI, 1.01–1.30; p = 0.041]) and neither at low flow. At low positive end-expiratory pressure, neither was associated with mortality, whereas at high positive end-expiratory pressure (≥ 10 cm H2O), only power was significantly associated with mortality (power [hazard ratio, 1.22; 95% CI, 1.09–1.37; p < 0.001] vs driving pressure [hazard ratio, 1.16; 95% CI, 0.99–1.35; p = 0.059]). CONCLUSIONS AND RELEVANCE: The relationship between mechanical power and driving pressure with mortality differed within severity subgroups defined by positive end-expiratory pressure, respiratory rate, and airway flow.
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12
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Chiu LC, Kao KC. Mechanical Ventilation during Extracorporeal Membrane Oxygenation in Acute Respiratory Distress Syndrome: A Narrative Review. J Clin Med 2021; 10:jcm10214953. [PMID: 34768478 PMCID: PMC8584351 DOI: 10.3390/jcm10214953] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/15/2021] [Accepted: 10/25/2021] [Indexed: 12/12/2022] Open
Abstract
Acute respiratory distress syndrome (ARDS) is a life-threatening condition involving acute hypoxemic respiratory failure. Mechanical ventilation remains the cornerstone of management for ARDS; however, potentially injurious mechanical forces introduce the risk of ventilator-induced lung injury, multiple organ failure, and death. Extracorporeal membrane oxygenation (ECMO) is a salvage therapy aimed at ensuring adequate gas exchange for patients suffering from severe ARDS with profound hypoxemia where conventional mechanical ventilation has failed. ECMO allows for lower tidal volumes and airway pressures, which can reduce the risk of further lung injury, and allow the lungs to rest. However, the collateral effect of ECMO should be considered. Recent studies have reported correlations between mechanical ventilator settings during ECMO and mortality. In many cases, mechanical ventilation settings should be tailored to the individual; however, researchers have yet to establish optimal ventilator settings or determine the degree to which ventilation load can be decreased. This paper presents an overview of previous studies and clinical trials pertaining to the management of mechanical ventilation during ECMO for patients with severe ARDS, with a focus on clinical findings, suggestions, protocols, guidelines, and expert opinions. We also identified a number of issues that have yet to be adequately addressed.
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Affiliation(s)
- Li-Chung Chiu
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan 33305, Taiwan;
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Kuo-Chin Kao
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan 33305, Taiwan;
- Department of Respiratory Therapy, Chang Gung University College of Medicine, Taoyuan 33302, Taiwan
- Department of Respiratory Therapy, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan 33305, Taiwan
- Correspondence: ; Tel.: +886-3-3281200 (ext. 8467)
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13
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Retamal J, Damiani LF, Basoalto R, Benites MH, Bruhn A, Larsson A, Bugedo G. Physiological and inflammatory consequences of high and low respiratory rate in acute respiratory distress syndrome. Acta Anaesthesiol Scand 2021; 65:1013-1022. [PMID: 33844272 DOI: 10.1111/aas.13830] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 03/17/2021] [Accepted: 03/29/2021] [Indexed: 12/18/2022]
Abstract
Using protective mechanical ventilation strategies with low tidal volume is usually accompanied by an increment of respiratory rate to maintain adequate alveolar ventilation. However, there is no robust data that support the safety of a high respiratory rate concerning ventilator-induced lung injury. Several experimental animal studies have explored the effects of respiratory rate over lung physiology, using a wide range of frequencies and different models. Clinical evidence is scarce and restricted to the physiological impact of increased respiratory rate. Undoubtedly, the respiratory rate can influence respiratory mechanics in various ways as a factor of multiplication of the power of ventilation, and gas exchange, and also on alveolar dynamics. In this narrative review, we present our point of view over the main experimental and clinical evidence available regarding the effect of respiratory rate on ventilator-induced lung injury development.
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Affiliation(s)
- Jaime Retamal
- Departamento de Medicina Intensiva Facultad de Medicina Pontificia Universidad Católica de Chile Santiago Chile
| | - Luis Felipe Damiani
- Departamento de Medicina Intensiva Facultad de Medicina Pontificia Universidad Católica de Chile Santiago Chile
- Departamento de Ciencias de la Salud Carrera de Kinesiología Facultad de Medicina Pontificia Universidad Católica de Chile Santiago Chile
| | - Roque Basoalto
- Departamento de Medicina Intensiva Facultad de Medicina Pontificia Universidad Católica de Chile Santiago Chile
| | - Martín H. Benites
- Departamento de Medicina Intensiva Clínica las Condes Santiago Chile
| | - Alejandro Bruhn
- Departamento de Medicina Intensiva Facultad de Medicina Pontificia Universidad Católica de Chile Santiago Chile
| | - Anders Larsson
- Hedenstierna Laboratory Department of Surgical Sciences Section of Anaesthesiology and Critical Care Uppsala University Uppsala Sweden
| | - Guillermo Bugedo
- Departamento de Medicina Intensiva Facultad de Medicina Pontificia Universidad Católica de Chile Santiago Chile
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14
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Spinelli E, Colussi G, Dal Santo G, Scotti E, Marongiu I, Garbelli E, Mazzucco A, Dondossola D, Maia R, Battistin M, Biancolilli O, Rosso L, Gatti S, Mauri T. Atelectasis, Shunt, and Worsening Oxygenation Following Reduction of Respiratory Rate in Healthy Pigs Undergoing ECMO: An Experimental Lung Imaging Study. Front Physiol 2021; 12:663313. [PMID: 33897471 PMCID: PMC8063114 DOI: 10.3389/fphys.2021.663313] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 03/04/2021] [Indexed: 12/21/2022] Open
Abstract
Rationale: Reducing the respiratory rate during extracorporeal membrane oxygenation (ECMO) decreases the mechanical power, but it might induce alveolar de-recruitment. Dissecting de-recruitment due to lung edema vs. the fraction due to hypoventilation may be challenging in injured lungs. Objectives: We characterized changes in lung physiology (primary endpoint: development of atelectasis) associated with progressive reduction of the respiratory rate in healthy animals on ECMO. Methods: Six female pigs underwent general anesthesia and volume control ventilation (Baseline: PEEP 5 cmH2O, Vt 10 ml/kg, I:E = 1:2, FiO2 0.5, rate 24 bpm). Veno-venous ECMO was started and respiratory rate was progressively reduced to 18, 12, and 6 breaths per minute (6-h steps), while all other settings remained unchanged. ECMO blood flow was kept constant while gas flow was increased to maintain stable PaCO2. Measurements and Main Results: At Baseline (without ECMO) and toward the end of each step, data from quantitative CT scan, electrical impedance tomography, and gas exchange were collected. Increasing ECMO gas flow while lowering the respiratory rate was associated with an increase in the fraction of non-aerated tissue (i.e., atelectasis) and with a decrease of tidal ventilation reaching the gravitationally dependent lung regions (p = 0.009 and p = 0.018). Intrapulmonary shunt increased (p < 0.001) and arterial PaO2 decreased (p < 0.001) at lower rates. The fraction of non-aerated lung was correlated with longer expiratory time spent at zero flow (r = 0.555, p = 0.011). Conclusions: Progressive decrease of respiratory rate coupled with increasing CO2 removal in mechanically ventilated healthy pigs is associated with development of lung atelectasis, higher shunt, and poorer oxygenation.
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Affiliation(s)
- Elena Spinelli
- Department of Anesthesia, Critical Care and Emergency, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Giulia Colussi
- Department of Anesthesia, Critical Care and Emergency, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Gaia Dal Santo
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Eleonora Scotti
- Department of Anesthesia, Critical Care and Emergency, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Ines Marongiu
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Erica Garbelli
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Alessandra Mazzucco
- Thoracic Surgery and Lung Transplantation Unit, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Daniele Dondossola
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy.,General and Liver Transplant Surgery Unit, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Raquel Maia
- Department of Anesthesia, Critical Care and Emergency, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.,Department of Intensive Care Medicine, Hospital Professor Doutor Fernando Fonseca, Amadora, Portugal
| | - Michele Battistin
- Department of Anesthesia, Critical Care and Emergency, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Osvaldo Biancolilli
- Department of Anesthesia, Critical Care and Emergency, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Lorenzo Rosso
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy.,Thoracic Surgery and Lung Transplantation Unit, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Stefano Gatti
- Center for Preclinical Research, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Tommaso Mauri
- Department of Anesthesia, Critical Care and Emergency, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.,Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
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15
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Stephens K, Mitchell N, Overton S, Tonna JE. On the Transition from Control Modes to Spontaneous Modes during ECMO. J Clin Med 2021; 10:jcm10051001. [PMID: 33801277 PMCID: PMC7958116 DOI: 10.3390/jcm10051001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/17/2021] [Accepted: 02/18/2021] [Indexed: 01/21/2023] Open
Abstract
The transition from control modes to spontaneous modes is ubiquitous for mechanically ventilated patients yet there is little data describing the changes and patterns that occur to breathing during this transition for patients on ECMO. We identified high fidelity data among a diverse cohort of 419 mechanically ventilated patients on ECMO. We examined every ventilator change, describing the differences in >30,000 sets of original ventilator observations, focused around the time of transition from control modes to spontaneous modes. We performed multivariate regression with mixed effects, clustered by patient, to examine changes in ventilator characteristics within patients, including a subset among patients with low compliance (<30 milliliters (mL)/centimeters water (cmH2O)). We found that during the transition to spontaneous modes among patients with low compliance, patients exhibited greater tidal volumes (471 mL (364,585) vs. 425 mL (320,527); p < 0.0001), higher respiratory rate (23 breaths per minute (bpm) (18,28) vs. 18 bpm (14,23); p = 0.003), greater mechanical power (elastic component) (0.08 mL/(cmH2O × minute) (0.05,0.12) vs. 0.05 mL/(cmH2O × minute) (0.02,0.09); p < 0.0001) (range 0 to 1.4), and lower positive end expiratory pressure (PEEP) (6 cmH2O (5,8) vs. 10 cmH2O (8,11); p < 0.0001). For patients on control modes, the combination of increased tidal volume and increased respiratory rate was temporally associated with significantly low partial pressure of arterial oxygen (PaO2)/fraction of inspired oxygen (FiO2) ratio (p < 0.0001). These changes in ventilator parameters warrant prospective study, as they may be associated with worsened lung injury.
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Affiliation(s)
- Krista Stephens
- Department of Emergency Medicine, University of New Mexico, Albuquerque, NM 87131, USA;
| | - Nathan Mitchell
- Division of Emergency Medicine, Department of Surgery, University of Utah Health, Salt Lake City, UT 84132, USA;
| | - Sean Overton
- Division of Critical Care, Department of Anesthesiology, University of Utah Health, Salt Lake City, UT 84132, USA;
| | - Joseph E. Tonna
- Division of Emergency Medicine, Department of Surgery, University of Utah Health, Salt Lake City, UT 84132, USA;
- Division of Cardiothoracic Surgery, Department of Surgery, University of Utah Health, Salt Lake City, UT 84132, USA
- Correspondence: ; Tel.: +1-801-587-9373
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16
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Jang WS, Kim J, Baek J, Jung H, Jang JS, Park JS, Oh TH, Jang SY, Kim YS, Kwon YS. Clinical course of COVID-19 patients treated with ECMO: A multicenter study in Daegu, South Korea. Heart Lung 2021; 50:21-27. [PMID: 34698019 PMCID: PMC7572066 DOI: 10.1016/j.hrtlng.2020.10.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 10/06/2020] [Accepted: 10/16/2020] [Indexed: 01/08/2023]
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17
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Combes A, Schmidt M, Hodgson CL, Fan E, Ferguson ND, Fraser JF, Jaber S, Pesenti A, Ranieri M, Rowan K, Shekar K, Slutsky AS, Brodie D. Extracorporeal life support for adults with acute respiratory distress syndrome. Intensive Care Med 2020; 46:2464-2476. [PMID: 33140180 PMCID: PMC7605473 DOI: 10.1007/s00134-020-06290-1] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 10/10/2020] [Indexed: 12/28/2022]
Abstract
Extracorporeal life support (ECLS) can support gas exchange in patients with the acute respiratory distress syndrome (ARDS). During ECLS, venous blood is drained from a central vein via a cannula, pumped through a semipermeable membrane that permits diffusion of oxygen and carbon dioxide, and returned via a cannula to a central vein. Two related forms of ECLS are used. Venovenous extracorporeal membrane oxygenation (ECMO), which uses high blood flow rates to both oxygenate the blood and remove carbon dioxide, may be considered in patients with severe ARDS whose oxygenation or ventilation cannot be maintained adequately with best practice conventional mechanical ventilation and adjunctive therapies, including prone positioning. Extracorporeal carbon dioxide removal (ECCO2R) uses lower blood flow rates through smaller cannulae and provides substantial CO2 elimination (~ 20–70% of total CO2 production), albeit with marginal improvement in oxygenation. The rationale for using ECCO2R in ARDS is to facilitate lung-protective ventilation by allowing a reduction of tidal volume, respiratory rate, plateau pressure, driving pressure and mechanical power delivered by the mechanical ventilator. This narrative review summarizes physiological concepts related to ECLS, as well as the rationale and evidence supporting ECMO and ECCO2R for the treatment of ARDS. It also reviews complications, limitations, and the ethical dilemmas that can arise in treating patients with ECLS. Finally, it discusses future key research questions and challenges for this technology.
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Affiliation(s)
- Alain Combes
- Sorbonne Université, INSERM, UMRS_1166-ICAN, Institute of Cardiometabolism and Nutrition, 75013, Paris, France. .,Service de Médecine Intensive-Réanimation, Institut de Cardiologie, APHP Sorbonne Université Hôpital Pitié-Salpêtrière, 75013, Paris, France.
| | - Matthieu Schmidt
- Sorbonne Université, INSERM, UMRS_1166-ICAN, Institute of Cardiometabolism and Nutrition, 75013, Paris, France.,Service de Médecine Intensive-Réanimation, Institut de Cardiologie, APHP Sorbonne Université Hôpital Pitié-Salpêtrière, 75013, Paris, France
| | - Carol L Hodgson
- Australian and New Zealand Intensive Care-Research Centre, Monash University, Melbourne, Australia
| | - Eddy Fan
- Interdepartmenal Division of Critical Care Medicine, University of Toronto, Toronto, ON, Canada.,Department of Medicine, Division of Respirology, University Health Network, Toronto, ON, Canada
| | - Niall D Ferguson
- Department of Medicine, Division of Respirology, University Health Network, Toronto, ON, Canada.,Interdepartmental Division of Critical Care Medicine and Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - John F Fraser
- Critical Care Research Group, Adult Intensive Care Services, Northside Medical School, The Prince Charles Hospital, University of Queensland, Brisbane, Australia
| | - Samir Jaber
- Institut National de la Santé et de la Recherche Médicale (INSERM), Centre National de la Recherche Scientifique (CNRS), From the PhyMedExp, University of Montpellier, Centre Hospitalier Universitaire (CHU) Montpellier, Montpellier, France.,Département d'Anesthésie-Réanimation, Hôpital Saint-Eloi, Montpellier Cedex, France
| | - Antonio Pesenti
- Department of Anesthesia, Critical Care and Emergency, Department of Pathophysiology and Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - Marco Ranieri
- Intensive Care Unit, Policlinico di Sant'Orsola, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Kathryn Rowan
- Clinical Trials Unit, Intensive Care National Audit and Research Centre (ICNARC), London, UK
| | - Kiran Shekar
- Adult Intensive Care Services, Critical Care Research Group, the Prince Charles Hospital, Brisbane, QLD, Australia.,Queensland University of Technology, University of Queensland, Brisbane, QLD, Australia
| | - Arthur S Slutsky
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON, Canada.,Keenan Centre for Biomedical Research, Li Ka Shing Knowledge Institute, Unity Health Toronto, St Michael's Hospital, Toronto, ON, Canada
| | - Daniel Brodie
- Division of Pulmonary, Allergy, and Critical Care Medicine, Columbia University College of Physicians and Surgeons, NewYork-Presbyterian Hospital, New York, USA.,Center for Acute Respiratory Failure, NewYork-Presbyterian Hospital, New York, USA
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18
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Abrams D, Schmidt M, Pham T, Beitler JR, Fan E, Goligher EC, McNamee JJ, Patroniti N, Wilcox ME, Combes A, Ferguson ND, McAuley DF, Pesenti A, Quintel M, Fraser J, Hodgson CL, Hough CL, Mercat A, Mueller T, Pellegrino V, Ranieri VM, Rowan K, Shekar K, Brochard L, Brodie D. Mechanical Ventilation for Acute Respiratory Distress Syndrome during Extracorporeal Life Support. Research and Practice. Am J Respir Crit Care Med 2020; 201:514-525. [DOI: 10.1164/rccm.201907-1283ci] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- Darryl Abrams
- Columbia University College of Physicians & Surgeons/New York-Presbyterian Hospital, New York, New York
- Center for Acute Respiratory Failure, Columbia University Medical Center, New York, New York
| | - Matthieu Schmidt
- INSERM, UMRS_1166-ICAN, Sorbonne Université, Paris, France
- Service de Médecine Intensive-Réanimation, Institut de Cardiologie, Assistance Publique–Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Paris, France
| | - Tài Pham
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
- Keenan Research Center, Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Toronto, Ontario, Canada
- Service de Médecine Intensive-Réanimation, Hôpital de Bicêtre, Hôpitaux Universitaires Paris-Sud, Le Kremlin-Bicêtre, France
| | - Jeremy R. Beitler
- Columbia University College of Physicians & Surgeons/New York-Presbyterian Hospital, New York, New York
- Center for Acute Respiratory Failure, Columbia University Medical Center, New York, New York
| | - Eddy Fan
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
- Division of Respirology, Department of Medicine, University Health Network, Toronto General Hospital, Toronto, Ontario, Canada
| | - Ewan C. Goligher
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
- Division of Respirology, Department of Medicine, University Health Network, Toronto General Hospital, Toronto, Ontario, Canada
| | - James J. McNamee
- Centre for Experimental Medicine, Queen’s University Belfast, Belfast, United Kingdom
- Regional Intensive Care Unit, Royal Victoria Hospital, Belfast, United Kingdom
| | - Nicolò Patroniti
- Anaesthesia and Intensive Care, Scientific Institute for Research, Hospitalization and Healthcare (IRCCS) for Oncology, San Martino Policlinico Hospital, Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Genoa, Italy
| | - M. Elizabeth Wilcox
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
- Division of Respirology, Department of Medicine, University Health Network, Toronto General Hospital, Toronto, Ontario, Canada
| | - Alain Combes
- INSERM, UMRS_1166-ICAN, Sorbonne Université, Paris, France
- Service de Médecine Intensive-Réanimation, Institut de Cardiologie, Assistance Publique–Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Paris, France
| | - Niall D. Ferguson
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
- Division of Respirology, Department of Medicine, University Health Network, Toronto General Hospital, Toronto, Ontario, Canada
| | - Danny F. McAuley
- Centre for Experimental Medicine, Queen’s University Belfast, Belfast, United Kingdom
- Regional Intensive Care Unit, Royal Victoria Hospital, Belfast, United Kingdom
| | - Antonio Pesenti
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
- Department of Anesthesia, Critical Care and Emergency Medicine, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico Milan, Milan, Italy
| | - Michael Quintel
- Department of Anesthesiology, University Medical Center, Georg August University, Goettingen, Germany
| | - John Fraser
- Critical Care Research Group, Prince Charles Hospital, Brisbane, Australia
- University of Queensland, Brisbane, Australia
| | - Carol L. Hodgson
- Australian and New Zealand Intensive Care Research Centre, Monash University, Melbourne, Australia
- Physiotherapy Department and
| | - Catherine L. Hough
- Pulmonary and Critical Care Medicine, University of Washington, Seattle, Washington
| | - Alain Mercat
- Département de Médecine Intensive-Réanimation et Médecine Hyperbare, Centre Hospitalier Universitaire d’Angers, Université d’Angers, Angers, France
| | - Thomas Mueller
- Department of Internal Medicine II, University Hospital of Regensburg, Regensburg, Germany
| | - Vin Pellegrino
- Intensive Care Unit, The Alfred Hospital, Melbourne, Australia
| | - V. Marco Ranieri
- Alma Mater Studiorum–Dipartimento di Scienze Mediche e Chirurgiche, Anesthesia and Intensive Care Medicine, Policlinico di Sant’Orsola, Università di Bologna, Bologna, Italy; and
| | - Kathy Rowan
- Clinical Trials Unit, Intensive Care National Audit & Research Centre, London, United Kingdom
| | - Kiran Shekar
- Critical Care Research Group, Prince Charles Hospital, Brisbane, Australia
- University of Queensland, Brisbane, Australia
| | - Laurent Brochard
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
- Keenan Research Center, Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Toronto, Ontario, Canada
| | - Daniel Brodie
- Columbia University College of Physicians & Surgeons/New York-Presbyterian Hospital, New York, New York
- Center for Acute Respiratory Failure, Columbia University Medical Center, New York, New York
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19
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Leypoldt JK, Goldstein J, Pouchoulin D, Harenski K. Extracorporeal carbon dioxide removal requirements for ultraprotective mechanical ventilation: Mathematical model predictions. Artif Organs 2019; 44:488-496. [PMID: 31769043 PMCID: PMC7187447 DOI: 10.1111/aor.13601] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 11/02/2019] [Accepted: 11/07/2019] [Indexed: 12/11/2022]
Abstract
Extracorporeal carbon dioxide (CO2) removal (ECCO2R) facilitates the use of low tidal volumes during protective or ultraprotective mechanical ventilation when managing patients with acute respiratory distress syndrome (ARDS); however, the rate of ECCO2R required to avoid hypercapnia remains unclear. We calculated ECCO2R rate requirements to maintain arterial partial pressure of CO2 (PaCO2) at clinically desirable levels in mechanically ventilated ARDS patients using a six‐compartment mathematical model of CO2 and oxygen (O2) biochemistry and whole‐body transport with the inclusion of an ECCO2R device for extracorporeal veno‐venous removal of CO2. The model assumes steady state conditions. Model compartments were lung capillary blood, arterial blood, venous blood, post‐ECCO2R venous blood, interstitial fluid and tissue cells, with CO2 and O2 distribution within each compartment; biochemistry included equilibrium among bicarbonate and non‐bicarbonate buffers and CO2 and O2 binding to hemoglobin to elucidate Bohr and Haldane effects. O2 consumption and CO2 production rates were assumed proportional to predicted body weight (PBW) and adjusted to achieve reported arterial partial pressure of O2 and a PaCO2 level of 46 mmHg at a tidal volume of 7.6 mL/kg PBW in the absence of an ECCO2R device based on average data from LUNG SAFE. Model calculations showed that ECCO2R rates required to achieve mild permissive hypercapnia (PaCO2 of 46 mmHg) at a ventilation frequency or respiratory rate of 20.8/min during mechanical ventilation increased when tidal volumes decreased from 7.6 to 3 mL/kg PBW. Higher ECCO2R rates were required to achieve normocapnia (PaCO2 of 40 mmHg). Model calculations also showed that required ECCO2R rates were lower when ventilation frequencies were increased from 20.8/min to 26/min. The current mathematical model predicts that ECCO2R rates resulting in clinically desirable PaCO2 levels at tidal volumes of 5‐6 mL/kg PBW can likely be achieved in mechanically ventilated ARDS patients with current technologies; use of ultraprotective tidal volumes (3‐4 mL/kg PBW) may be challenging unless high mechanical ventilation frequencies are used.
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Affiliation(s)
- John Kenneth Leypoldt
- Polish Academy of Sciences, Nalecz Institute of Biocybernetics and Biomedical Engineering, Warsaw, Poland
| | | | | | - Kai Harenski
- Baxter Deutschland GmbH, Unterschleissheim, Germany
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Encou-RAGE-ing Lung Protection in Patients With Acute Respiratory Distress Syndrome Under Extracorporeal Membrane Oxygenation*. Crit Care Med 2019; 47:1654-1655. [DOI: 10.1097/ccm.0000000000003984] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Grasso S, Spadaro S. Electrical impedance tomography: just another tool or a real advance towards precision-medicine in mechanical ventilation? Minerva Anestesiol 2019; 85:1157-1158. [DOI: 10.23736/s0375-9393.19.13955-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Abstract
OBJECTIVES Minimally invasive extracorporeal CO2 removal is an accepted supportive treatment in chronic obstructive pulmonary disease patients. Conversely, the potential of such technique in treating acute respiratory distress syndrome patients remains to be investigated. The aim of this study was: 1) to quantify membrane lung CO2 removal (VCO2ML) under different conditions and 2) to quantify the natural lung CO2 removal (VCO2NL) and to what extent mechanical ventilation can be reduced while maintaining total expired CO2 (VCO2tot = VCO2ML + VCO2NL) and arterial PCO2 constant. DESIGN Experimental animal study. SETTING Department of Experimental Animal Medicine, University of Göttingen, Germany. SUBJECTS Eight healthy pigs (57.7 ± 5 kg). INTERVENTIONS The animals were sedated, ventilated, and connected to the artificial lung system (surface 1.8 m, polymethylpentene membrane, filling volume 125 mL) through a 13F catheter. VCO2ML was measured under different combinations of inflow PCO2 (38.9 ± 3.3, 65 ± 5.7, and 89.9 ± 12.9 mm Hg), extracorporeal blood flow (100, 200, 300, and 400 mL/min), and gas flow (4, 6, and 12 L/min). At each setting, we measured VCO2ML, VCO2NL, lung mechanics, and blood gases. MEASUREMENTS AND MAIN RESULTS VCO2ML increased linearly with extracorporeal blood flow and inflow PCO2 but was not affected by gas flow. The outflow PCO2 was similar regardless of inflow PCO2 and extracorporeal blood flow, suggesting that VCO2ML was maximally exploited in each experimental condition. Mechanical ventilation could be reduced by up to 80-90% while maintaining a constant PaCO2. CONCLUSIONS Minimally invasive extracorporeal CO2 removal removes a relevant amount of CO2 thus allowing mechanical ventilation to be significantly reduced depending on extracorporeal blood flow and inflow PCO2. Extracorporeal CO2 removal may provide the physiologic prerequisites for controlling ventilator-induced lung injury.
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Beyond Tidal Volume in Acute Respiratory Distress Syndrome: Semiautomated Screening and Novel Ventilator Concepts. Ann Am Thorac Soc 2019; 16:1238-1240. [PMID: 31573340 DOI: 10.1513/annalsats.201906-488ed] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Augy JL, Aissaoui N, Richard C, Maury E, Fartoukh M, Mekontso-Dessap A, Paulet R, Anguel N, Blayau C, Cohen Y, Chiche JD, Gaudry S, Voicu S, Demoule A, Combes A, Megarbane B, Charpentier E, Haghighat S, Panczer M, Diehl JL. A 2-year multicenter, observational, prospective, cohort study on extracorporeal CO 2 removal in a large metropolis area. J Intensive Care 2019; 7:45. [PMID: 31452899 PMCID: PMC6701003 DOI: 10.1186/s40560-019-0399-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 08/12/2019] [Indexed: 11/17/2022] Open
Abstract
Background Extracorporeal carbon dioxide removal (ECCO2R) is a promising technique for the management of acute respiratory failure, but with a limited level of evidence to support its use outside clinical trials and/or data collection initiatives. We report a collaborative initiative in a large metropolis. Methods To assess on a structural basis the rate of utilization as well as efficacy and safety parameters of 2 ECCO2R devices in 10 intensive care units (ICU) during a 2-year period. Results Seventy patients were recruited in 10 voluntary and specifically trained centers. The median utilization rate was 0.19 patient/month/center (min 0.04; max 1.20). ECCO2R was started under invasive mechanical ventilation (IMV) in 59 patients and non-invasive ventilation in 11 patients. The Hemolung Respiratory Assist System (Alung) was used in 53 patients and the iLA Activve iLA kit (Xenios Novalung) in 17 patients. Main indications were ultraprotective ventilation for ARDS patients (n = 24), shortening the duration of IMV in COPD patients (n = 21), preventing intubation in COPD patients (n = 9), and controlling hypercapnia and dynamic hyperinflation in mechanically ventilated patients with severe acute asthma (n = 6). A reduction in median VT was observed in ARDS patients from 5.9 to 4.1 ml/kg (p <0.001). A reduction in PaCO2 values was observed in AE-COPD patients from 67.5 to 51 mmHg (p< 0.001). Median duration of ECCO2R was 5 days (IQR 3–8). Reasons for ECCO2R discontinuation were improvement (n = 33), ECCO2R-related complications (n = 18), limitation of life-sustaining therapies or measures decision (n = 10), and death (n = 9). Main adverse events were hemolysis (n = 21), bleeding (n = 17), and lung membrane clotting (n = 11), with different profiles between the devices. Thirty-five deaths occurred during the ICU stay, 3 of which being ECCO2R-related. Conclusions Based on a registry, we report a low rate of ECCO2R device utilization, mainly in severe COPD and ARDS patients. Physiological efficacy was confirmed in these two populations. We confirmed safety concerns such as hemolysis, bleeding, and thrombosis, with different profiles between the devices. Such results could help to design future studies aiming to enhance safety, to demonstrate a still-lacking strong clinical benefit of ECCO2R, and to guide the choice between different devices. Trial registration ClinicalTrials.gov: Identifier: NCT02965079 retrospectively registered https://clinicaltrials.gov/ct2/show/NCT02965079
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Affiliation(s)
- J L Augy
- 1Service de Médecine Intensive Réanimation, AP-HP, Hôpital Européen Georges Pompidou, Paris, France
| | - N Aissaoui
- 1Service de Médecine Intensive Réanimation, AP-HP, Hôpital Européen Georges Pompidou, Paris, France
| | - C Richard
- 2Service de Médecine Intensive Réanimation, AP-HP, Hôpital de Bicètre, Le Kremlin Bicètre, France
| | - E Maury
- 3Service de Médecine Intensive Réanimation, AP-HP, Hôpital Saint-Antoine, Paris, France
| | - M Fartoukh
- Service de Réanimation Polyvalente, AP-HP, Hôpital Tenon, Paris, France
| | - A Mekontso-Dessap
- 5Service de Médecine Intensive Réanimation, AP-HP, Hôpital Henri Mondor, Créteil, France
| | - R Paulet
- Service de Réanimation Polyvalente, Centre Hospitalier de Longjumeau, Longjumeau, France
| | - N Anguel
- 2Service de Médecine Intensive Réanimation, AP-HP, Hôpital de Bicètre, Le Kremlin Bicètre, France
| | - C Blayau
- Service de Réanimation Polyvalente, AP-HP, Hôpital Tenon, Paris, France
| | - Y Cohen
- 7Service de Réanimation Polyvalente, AP-HP, Hôpital Avicenne, Bobigny, France
| | - J D Chiche
- 8Service de Médecine Intensive Réanimation, AP-HP, Hôpital Cochin, Paris, France
| | - S Gaudry
- 9Service de Réanimation Polyvalente, AP-HP, Hôpital Louis Mourier, Colombes, France
| | - S Voicu
- 10Service de Médecine Intensive Réanimation, AP-HP, Hôpital Lariboisière, Paris, France
| | - A Demoule
- AP-HP, Groupe Hospitalier Pitié-Salpêtrière Charles Foix, Service de Pneumologie, Médecine Intensive et Réanimation, Département R3S, Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
| | - A Combes
- 12Service de Médecine Intensive Réanimation, AP-HP, Hôpital Pitié-Salpétrière, Institut de Cardiologie, Paris, France
| | - B Megarbane
- 10Service de Médecine Intensive Réanimation, AP-HP, Hôpital Lariboisière, Paris, France
| | - E Charpentier
- 13AP-HP, Office du Transfert de Technologie et des Partenariats Industriels, Paris, France
| | - S Haghighat
- 14AP-HP, Agence Générale des Equipements et des Produits de Santé, Paris, France
| | - M Panczer
- 14AP-HP, Agence Générale des Equipements et des Produits de Santé, Paris, France
| | - J L Diehl
- 1Service de Médecine Intensive Réanimation, AP-HP, Hôpital Européen Georges Pompidou, Paris, France.,15Faculty of Pharmacy, INSERM UMR-S1140, Paris Descartes University, Paris, France
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Combes A, Tonetti T, Fanelli V, Pham T, Pesenti A, Mancebo J, Brodie D, Ranieri VM. Efficacy and safety of lower versus higher CO2 extraction devices to allow ultraprotective ventilation: secondary analysis of the SUPERNOVA study. Thorax 2019; 74:1179-1181. [DOI: 10.1136/thoraxjnl-2019-213591] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 06/11/2019] [Accepted: 07/05/2019] [Indexed: 11/04/2022]
Abstract
Retrospective analysis of the SUPERNOVA trial exploring the hypothesis that efficacy and safety of extracorporeal carbon dioxide removal (ECCO2R) to facilitate reduction of tidal volume (VT) to 4 mL/kg in patients with acute respiratory distress syndrome (ARDS) may differ between systems with lower (area of membrane length 0.59 m2; blood flow 300–500 mL/min) and higher (membrane area 1.30 m2; blood flow between 800 and 1000 mL/min) CO2 extraction capacity. Ninety-five patients with moderate ARDS were included (33 patients treated with lower and 62 patients treated with higher CO2 extraction devices). We found that (1) VT of 4 mL/kg was reached by 55% and 64% of patients with the lower extraction versus 90% and 92% of patients with higher extraction devices at 8 and 24 hours from baseline, respectively (p<0.001), and (2) percentage of patients experiencing episodes of ECCO2R-related haemolysis and bleeding was higher with lower than with higher extraction devices (21% vs 6%, p=0.045% and 27% vs 6%, p=0.010, respectively). Although V T of 4 mL/kg could have been obtained with all devices, this was achieved frequently and with a lower rate of adverse events by devices with higher CO2 extraction capacity.
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Brodie D, Slutsky AS, Combes A. Extracorporeal Life Support for Adults With Respiratory Failure and Related Indications: A Review. JAMA 2019; 322:557-568. [PMID: 31408142 DOI: 10.1001/jama.2019.9302] [Citation(s) in RCA: 220] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
IMPORTANCE The substantial growth over the last decade in the use of extracorporeal life support for adults with acute respiratory failure reveals an enthusiasm for the technology not always consistent with the evidence. However, recent high-quality data, primarily in patients with acute respiratory distress syndrome, have made extracorporeal life support more widely accepted in clinical practice. OBSERVATIONS Clinical trials of extracorporeal life support for acute respiratory failure in adults in the 1970s and 1990s failed to demonstrate benefit, reducing use of the intervention for decades and relegating it to a small number of centers. Nonetheless, technological improvements in extracorporeal support made it safer to use. Interest in extracorporeal life support increased with the confluence of 2 events in 2009: (1) the publication of a randomized clinical trial of extracorporeal life support for acute respiratory failure and (2) the use of extracorporeal life support in patients with severe acute respiratory distress syndrome during the influenza A(H1N1) pandemic. In 2018, a randomized clinical trial in patients with very severe acute respiratory distress syndrome demonstrated a seemingly large decrease in mortality from 46% to 35%, but this difference was not statistically significant. However, a Bayesian post hoc analysis of this trial and a subsequent meta-analysis together suggested that extracorporeal life support was beneficial for patients with very severe acute respiratory distress syndrome. As the evidence supporting the use of extracorporeal life support increases, its indications are expanding to being a bridge to lung transplantation and the management of patients with pulmonary vascular disease who have right-sided heart failure. Extracorporeal life support is now an acceptable form of organ support in clinical practice. CONCLUSIONS AND RELEVANCE The role of extracorporeal life support in the management of adults with acute respiratory failure is being redefined by advances in technology and increasing evidence of its effectiveness. Future developments in the field will result from technological advances, an increased understanding of the physiology and biology of extracorporeal support, and increased knowledge of how it might benefit the treatment of a variety of clinical conditions.
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Affiliation(s)
- Daniel Brodie
- Division of Pulmonary, Allergy, and Critical Care Medicine, Columbia University College of Physicians and Surgeons, NewYork-Presbyterian Hospital, New York
- Center for Acute Respiratory Failure, NewYork-Presbyterian Hospital, New York
| | - Arthur S Slutsky
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
- Keenan Centre for Biomedical Research, Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada
| | - Alain Combes
- Sorbonne Université INSERM Unité Mixte de Recherche (UMRS) 1166, Institute of Cardiometabolism and Nutrition, Paris, France
- Service de Médecine Intensive-Réanimation, Institut de Cardiologie, Assistance Publique-Hôpitaux de Paris (APHP) Hôpital Pitié-Salpêtrière, Paris, France
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Al-Fares A, Pettenuzzo T, Del Sorbo L. Extracorporeal life support and systemic inflammation. Intensive Care Med Exp 2019; 7:46. [PMID: 31346840 PMCID: PMC6658641 DOI: 10.1186/s40635-019-0249-y] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 04/22/2019] [Indexed: 01/10/2023] Open
Abstract
Extracorporeal life support (ECLS) encompasses a wide range of extracorporeal modalities that offer short- and intermediate-term mechanical support to the failing heart or lung. Apart from the daily use of cardiopulmonary bypass (CPB) in the operating room, there has been a resurgence of interest and utilization of veno-arterial and veno-venous extracorporeal membrane oxygenation (VA- and VV-ECMO, respectively) and extracorporeal carbon dioxide removal (ECCO2R) in recent years. This might be attributed to the advancement in technology, nonetheless the morbidity and mortality associated with the clinical application of this technology is still significant. The initiation of ECLS triggers a systemic inflammatory response, which involves the activation of the coagulation cascade, complement systems, endothelial cells, leukocytes, and platelets, thus potentially contributing to morbidity and mortality. This is due to the release of cytokines and other biomarkers of inflammation, which have been associated with multiorgan dysfunction. On the other hand, ECLS can be utilized as a therapy to halt the inflammatory response associated with critical illness and ICU therapeutic intervention, such as facilitating ultra-protective mechanical ventilation. In addition to addressing the impact on outcome of the relationship between inflammation and ECLS, two different but complementary pathophysiological perspectives will be developed in this review: ECLS as the cause of inflammation and ECLS as the treatment of inflammation. This framework may be useful in guiding the development of novel therapeutic strategies to improve the outcome of critical illness.
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Affiliation(s)
- Abdulrahman Al-Fares
- Adult Critical Care Medicine Fellowship Program, University of Toronto, Toronto, Canada.,Al-Amiri Hospital, Ministry of Health, Kuwait City, Kuwait.,Interdepartmental Division of Critical Care Medicine, Toronto General Hospital, University of Toronto, Toronto, Canada
| | - Tommaso Pettenuzzo
- Adult Critical Care Medicine Fellowship Program, University of Toronto, Toronto, Canada.,Interdepartmental Division of Critical Care Medicine, Toronto General Hospital, University of Toronto, Toronto, Canada
| | - Lorenzo Del Sorbo
- Interdepartmental Division of Critical Care Medicine, Toronto General Hospital, University of Toronto, Toronto, Canada. .,Toronto General Hospital, 585 University Avenue, PMB 11-122, Toronto, Ontario, M5G 2 N2, Canada.
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Extracorporeal carbon dioxide removal for lowering the risk of mechanical ventilation: research questions and clinical potential for the future. THE LANCET RESPIRATORY MEDICINE 2019; 6:874-884. [PMID: 30484429 DOI: 10.1016/s2213-2600(18)30326-6] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 06/28/2018] [Accepted: 07/19/2018] [Indexed: 12/30/2022]
Abstract
As a result of technical improvements, extracorporeal carbon dioxide removal (ECCO2R) now has the potential to play an important role in the management of adults with acute respiratory failure. There is growing interest in the use of ECCO2R for the management of both hypoxaemic and hypercapnic respiratory failure. However, evidence to support its use is scarce and several questions remain about the best way to implement this therapy, which can be associated with serious side-effects. This Review reflects the consensus opinion of an international group of clinician scientists with expertise in managing acute respiratory failure and in using ECCO2R therapies in this setting. We concisely review clinically relevant aspects of ECCO2R, and provide a series of recommendations for clinical practice and future research, covering topics that include the practicalities of ECCO2R delivery, indications for use, and service delivery.
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Fan E. "There Is Nothing New Except What Has Been Forgotten": The Story of Mechanical Ventilation during Extracorporeal Support. Am J Respir Crit Care Med 2019; 199:550-553. [PMID: 30281337 DOI: 10.1164/rccm.201809-1728ed] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Eddy Fan
- 1 Interdepartmental Division of Critical Care Medicine.,2 Institute of Health Policy, Management and Evaluation University of Toronto Toronto, Canada and.,3 University Health Network Toronto, Canada
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Extracorporeal Membrane Oxygenation Is First-Line Therapy for Acute Respiratory Distress Syndrome. Crit Care Med 2019; 45:2070-2073. [PMID: 29035914 DOI: 10.1097/ccm.0000000000002734] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Dzierba AL, Abrams D, Muir J, Brodie D. Ventilatory and Pharmacotherapeutic Strategies for Management of Adult Patients on Extracorporeal Life Support. Pharmacotherapy 2019; 39:355-368. [DOI: 10.1002/phar.2230] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Amy L. Dzierba
- Department of Pharmacy NewYork‐Presbyterian Hospital New York New York
| | - Darryl Abrams
- Division of Pulmonary, Allergy and Critical Care Columbia University College of Physicians and Surgeons/NewYork‐Presbyterian Hospital New York New York
| | - Justin Muir
- Department of Pharmacy NewYork‐Presbyterian Hospital New York New York
| | - Daniel Brodie
- Division of Pulmonary, Allergy and Critical Care Columbia University College of Physicians and Surgeons/NewYork‐Presbyterian Hospital New York New York
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Feasibility and safety of extracorporeal CO2 removal to enhance protective ventilation in acute respiratory distress syndrome: the SUPERNOVA study. Intensive Care Med 2019; 45:592-600. [DOI: 10.1007/s00134-019-05567-4] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 02/09/2019] [Indexed: 10/27/2022]
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Lyons C, Callaghan M. Uses and mechanisms of apnoeic oxygenation: a narrative review. Anaesthesia 2019; 74:497-507. [DOI: 10.1111/anae.14565] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/02/2018] [Indexed: 12/31/2022]
Affiliation(s)
- C. Lyons
- Department of Anaesthesia; Mater Misericordiae University Hospital; Dublin Ireland
| | - M. Callaghan
- Department of Anaesthesia; Galway University Hospitals; Galway Ireland
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Nentwich J, Wichmann D, Kluge S, Lindau S, Mutlak H, John S. Low-flow CO 2 removal in combination with renal replacement therapy effectively reduces ventilation requirements in hypercapnic patients: a pilot study. Ann Intensive Care 2019; 9:3. [PMID: 30617611 PMCID: PMC6323065 DOI: 10.1186/s13613-019-0480-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 01/02/2019] [Indexed: 01/21/2023] Open
Abstract
Background Lung-protective strategies are the cornerstone of mechanical ventilation in critically ill patients with both ARDS and other disorders. Extracorporeal CO2 removal (ECCO2R) may enhance lung protection by allowing even further reductions in tidal volumes and is effective in low-flow settings commonly used for renal replacement therapy. In this study, we describe for the first time the effects of a labeled and certified system combining ECCO2R and renal replacement therapy on pulmonary stress and strain in hypercapnic patients with renal failure. Methods Twenty patients were treated with the combined system which incorporates a membrane lung (0.32 m2) in a conventional renal replacement circuit. After changes in blood gases under ECCO2R were recorded, baseline hypercapnia was reestablished and the impact on ventilation parameters such as tidal volume and driving pressure was recorded. Results The system delivered ECCO2R at rate of 43.4 ± 14.1 ml/min, PaCO2 decreased from 68.3 ± 11.8 to 61.8 ± 11.5 mmHg (p < 0.05) and pH increased from 7.18 ± 0.09 to 7.22 ± 0.08 (p < 0.05). There was a significant reduction in ventilation requirements with a decrease in tidal volume from 6.2 ± 0.9 to 5.4 ± 1.1 ml/kg PBW (p < 0.05) corresponding to a decrease in plateau pressure from 30.6 ± 4.6 to 27.7 ± 4.1 cmH2O (p < 0.05) and a decrease in driving pressure from 18.3 ± 4.3 to 15.6 ± 3.9 cmH2O (p < 0.05), indicating reduced pulmonary stress and strain. No complications related to the procedure were observed. Conclusions The investigated low-flow ECCO2R and renal replacement system can ameliorate respiratory acidosis and decrease ventilation requirements in hypercapnic patients with concomitant renal failure. Trial registration NCT02590575, registered 10/23/2015.
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Affiliation(s)
- Jens Nentwich
- Medical Intensive Care, Department of Cardiology, Klinikum Nuremberg, Paracelsus Medical University, Nuremberg, Germany
| | - Dominic Wichmann
- Department of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Stefan Kluge
- Department of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Simone Lindau
- Department of Anesthesia, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Frankfurt, Germany
| | - Haitham Mutlak
- Department of Anesthesia, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Frankfurt, Germany
| | - Stefan John
- Medical Intensive Care, Department of Cardiology, Klinikum Nuremberg, Paracelsus Medical University, Nuremberg, Germany.
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When the momentum has gone: what will be the role of extracorporeal lung support in the future? Curr Opin Crit Care 2018; 24:23-28. [PMID: 29140963 DOI: 10.1097/mcc.0000000000000475] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE OF REVIEW There has been expanding interest in and use of extracorporeal support in respiratory failure concurrent with technological advances and predominantly observational data demonstrating improved outcomes. However, until there is more available data from rigorous, high-quality randomized studies, the future of extracorporeal support remains uncertain. RECENT FINDINGS Outcomes for patients supported with extracorporeal devices continue to show favorable trends. There are several large randomized controlled trials that are in various stages of planning or completion for extracorporeal membrane oxygenation (ECMO) and extracorporeal carbon dioxide removal (ECCO2R) in the acute respiratory distress syndrome (ARDS) and chronic obstructive pulmonary disease (COPD), which may help clarify the role of this technology for these disease processes, and which stand to have a significant impact on a large proportion of patients with acute respiratory failure. Novel applications of extracorporeal lung support include optimization of donor organ quality through ex-vivo perfusion and extracorporeal cross-circulation, allowing for multimodal therapeutic interventions. SUMMARY Despite the ongoing rise in ECMO use for acute respiratory failure, its true value will not be known until more information is gleaned from prospective randomized controlled trials. Additionally, there are modalities beyond the current considerations for extracorporeal support that have the potential to revolutionize respiratory failure, particularly in the realm of chronic lung disease and lung transplantation.
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Cruz FF, Ball L, Rocco PRM, Pelosi P. Ventilator-induced lung injury during controlled ventilation in patients with acute respiratory distress syndrome: less is probably better. Expert Rev Respir Med 2018; 12:403-414. [PMID: 29575957 DOI: 10.1080/17476348.2018.1457954] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
INTRODUCTION Mechanical ventilation is required to support respiratory function in the acute respiratory distress syndrome (ARDS), but it may promote lung damage, a phenomenon known as ventilator-induced lung injury (VILI). Areas covered: Several mechanisms of VILI have been described, such as: inspiratory and/or expiratory stress inducing overdistension (volutrauma); interfaces between collapsed or edema-filled alveoli with surrounding open alveoli, acting as stress raisers; alveoli that repetitively open and close during tidal breathing (atelectrauma); and peripheral airway dynamics. In this review, we discuss: the definition and classification of ARDS; ventilatory parameters that act as VILI determinants (tidal volume, respiratory rate, positive end-expiratory pressure, peak, plateau, driving and transpulmonary pressures, energy, mechanical power, and intensity); and the roles of prone positioning and muscle paralysis. We seek to provide an up-to-date overview of the evidence in the field from a clinical perspective. Expert commentary: To prevent VILI, mechanical ventilation strategies should minimize inspiratory/expiratory stress, dynamic/static strain, energy, mechanical power, and intensity, as well as mitigate the hemodynamic consequences of positive-pressure ventilation. In patients with moderate to severe ARDS, prone positioning can reduce lung damage and improve survival. Overall, volutrauma seems to be more harmful than atelectrauma. Extracorporeal support should be considered in selected cases.
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Affiliation(s)
- Fernanda Ferreira Cruz
- a Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics , Federal University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Lorenzo Ball
- b Department of Surgical Sciences and Integrated Diagnostics , Ospedale Policlinico San Martino, IRCCS for Oncology, University of Genoa , Genoa , Italy
| | - Patricia Rieken Macedo Rocco
- a Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics , Federal University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Paolo Pelosi
- b Department of Surgical Sciences and Integrated Diagnostics , Ospedale Policlinico San Martino, IRCCS for Oncology, University of Genoa , Genoa , Italy
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The Evolution of Extracorporeal Membrane Oxygenation for Adult Respiratory Failure. Ann Am Thorac Soc 2018; 15:S57-S60. [DOI: 10.1513/annalsats.201705-386kv] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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Fan E, Brodie D, Slutsky AS. Fifty Years of Research in ARDS. Mechanical Ventilation during Extracorporeal Support for Acute Respiratory Distress Syndrome. For Now, a Necessary Evil. Am J Respir Crit Care Med 2017; 195:1137-1139. [PMID: 28459339 DOI: 10.1164/rccm.201702-0292ed] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Affiliation(s)
- Eddy Fan
- 1 Interdepartmental Division of Critical Care Medicine University of Toronto Toronto, Ontario, Canada.,2 Department of Medicine University Health Network and Sinai Health System Toronto, Ontario, Canada
| | - Daniel Brodie
- 3 Division of Pulmonary, Allergy, and Critical Care Medicine Columbia University Medical Center/New York-Presbyterian Hospital New York, New York and
| | - Arthur S Slutsky
- 1 Interdepartmental Division of Critical Care Medicine University of Toronto Toronto, Ontario, Canada.,4 Li Ka Shing Knowledge Institute St. Michael's Hospital Toronto, Ontario, Canada
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Parekh M, Abrams D, Brodie D. Extracorporeal techniques in acute respiratory distress syndrome. ANNALS OF TRANSLATIONAL MEDICINE 2017; 5:296. [PMID: 28828371 DOI: 10.21037/atm.2017.06.58] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Extracorporeal membrane oxygenation (ECMO) was first introduced for patients with acute respiratory distress syndrome (ARDS) in the 1970s. However, enthusiasm was tempered due to the high mortality seen at that time. The use of ECMO has grown considerably in recent years due to technological advances and the evidence suggesting potential benefit. While the efficacy of ECMO has yet to be rigorously demonstrated with high-quality evidence, it has the potential not only to have a substantial impact on outcomes, including mortality, but also to change the paradigm of ARDS management.
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Affiliation(s)
- Madhavi Parekh
- Division of Pulmonary, Allergy and Critical Care Medicine, Columbia University Medical Center, New York, USA
| | - Darryl Abrams
- Division of Pulmonary, Allergy and Critical Care Medicine, Columbia University Medical Center, New York, USA
| | - Daniel Brodie
- Division of Pulmonary, Allergy and Critical Care Medicine, Columbia University Medical Center, New York, USA
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Morelli A, Del Sorbo L, Pesenti A, Ranieri VM, Fan E. Extracorporeal carbon dioxide removal (ECCO 2R) in patients with acute respiratory failure. Intensive Care Med 2017; 43:519-530. [PMID: 28132075 DOI: 10.1007/s00134-016-4673-0] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 12/29/2016] [Indexed: 12/14/2022]
Abstract
PURPOSE To review the available knowledge related to the use of ECCO2R as adjuvant strategy to mechanical ventilation (MV) in various clinical settings of acute respiratory failure (ARF). METHODS Expert opinion and review of the literature. RESULTS ECCO2R may be a promising adjuvant therapeutic strategy for the management of patients with severe exacerbations of COPD and for the achievement of protective or ultra-protective ventilation in patients with ARDS without life-threatening hypoxemia. Given the observational nature of most of the available clinical data and differences in technical features and performances of current devices, the balance of risks and benefits for or against ECCO2R in such patient populations remains unclear CONCLUSIONS: ECCO2R is currently an experimental technique rather than an accepted therapeutic strategy in ARF-its safety and efficacy require confirmation in clinical trials.
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Affiliation(s)
- Andrea Morelli
- Department of Anesthesiology and Intensive Care, Policlinico Umberto 1, Sapienza University of Rome, Rome, Italy
| | - Lorenzo Del Sorbo
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON, Canada.,Extracorporeal Life Support Program, Toronto General Hospital, 585 University Avenue, PMB 11-123, Toronto, ON, M5G 2N2, Canada
| | - Antonio Pesenti
- Fondazione IRCCS Ca' Granda, Ospendale Maggiore Policlinico and Department of Pathophysiology and Transplantation, Universita degli Studi di Milano, Milan, Italy
| | - V Marco Ranieri
- Department of Anesthesiology and Intensive Care, Policlinico Umberto 1, Sapienza University of Rome, Rome, Italy
| | - Eddy Fan
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON, Canada. .,Extracorporeal Life Support Program, Toronto General Hospital, 585 University Avenue, PMB 11-123, Toronto, ON, M5G 2N2, Canada.
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Jiang L, Feng H, Chen X, Liang K, Ni C. Low Tidal Volume Reduces Lung Inflammation Induced by Liquid Ventilation in Piglets With Severe Lung Injury. Artif Organs 2016; 41:440-445. [PMID: 27873331 DOI: 10.1111/aor.12784] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 04/24/2016] [Accepted: 05/16/2016] [Indexed: 11/29/2022]
Abstract
Total liquid ventilation (TLV) is an alternative treatment for severe lung injury. High tidal volume is usually required for TLV to maintain adequate CO2 clearance. However, high tidal volume may cause alveolar barotrauma. We aim to investigate the effect of low tidal volume on pulmonary inflammation in piglets with lung injury and under TLV. After the establishment of acute lung injury model by infusing lipopolysaccharide, 12 piglets were randomly divided into two groups, TLV with high tidal volume (25 mL/kg) or with low tidal volume (6 mL/kg) for 240 min, respectively. Extracorporeal CO2 removal was applied in low tidal volume group to improve CO2 clearance and in high tidal volume group as sham control. Gas exchange and hemodynamic status were monitored every 30 min during TLV. At the end of the study, pulmonary mRNA expression and plasmatic concentration of interleukin-6 (IL-6) and interleukin-8 (IL-8) were measured by collecting lung tissue and blood samples from piglets. Arterial blood pressure, PaO2 , and PaCO2 showed no remarkable difference between groups during the observation period. Compared with high tidal volume strategy, low tidal volume resulted in 76% reduction of minute volume and over 80% reduction in peak inspiratory pressure during TLV. In addition, low tidal volume significantly diminished pulmonary mRNA expression and plasmatic level of IL-6 and IL-8. We conclude that during TLV, low tidal volume reduces lung inflammation in piglets with acute lung injury without compromising gas exchange.
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Affiliation(s)
- Lijun Jiang
- Department of Cardiothoracic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou
| | - Huizhen Feng
- Department of Cardiothoracic Surgery, Children's Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Xiaofan Chen
- Department of Cardiothoracic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou
| | - Kaifeng Liang
- Department of Cardiothoracic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou
| | - Chengyao Ni
- Department of Cardiothoracic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou
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Potentially modifiable factors contributing to outcome from acute respiratory distress syndrome: the LUNG SAFE study. Intensive Care Med 2016; 42:1865-1876. [DOI: 10.1007/s00134-016-4571-5] [Citation(s) in RCA: 191] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 09/22/2016] [Indexed: 11/24/2022]
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Control of Respiratory Drive and Effort in Extracorporeal Membrane Oxygenation Patients Recovering from Severe Acute Respiratory Distress Syndrome. Anesthesiology 2016; 125:159-67. [DOI: 10.1097/aln.0000000000001103] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Abstract
Background
The amount of extracorporeal carbon dioxide removal may influence respiratory drive in acute respiratory distress syndrome (ARDS) patients undergoing extracorporeal membrane oxygenation (ECMO). The authors evaluated the effects of different levels of extracorporeal carbon dioxide removal in patients recovering from severe ARDS undergoing pressure support ventilation (PSV) and neurally adjusted ventilatory assist (NAVA).
Methods
The authors conducted a prospective, randomized, crossover study on eight spontaneously breathing ARDS patients undergoing venovenous ECMO since 28 ± 20 days. To modulate carbon dioxide extraction, ECMO gas flow (GF) was decreased from baseline resting protective conditions (i.e., GF100%, set to obtain pressure generated in the first 100 ms of inspiration against an occluded airway less than 2 cm H2O, respiratory rate less than or equal to 25 bpm, tidal volume less than 6 ml/kg, and peak airway pressure less than 25 cm H2O) to GF50%-GF25%-GF0% during both PSV and NAVA (random order for ventilation mode). Continuous recordings of airway pressure and flow and esophageal pressure were obtained and analyzed during all study phases.
Results
At higher levels of extracorporeal carbon dioxide extraction, pressure generated in the first 100 ms of inspiration against an occluded airway decreased from 2.8 ± 2.7 cm H2O (PSV, GF0%) and 3.0 ± 2.1 cm H2O (NAVA, GF0%) to 0.9 ± 0.5 cm H2O (PSV, GF100%) and 1.0 ± 0.8 cm H2O (NAVA, GF100%; P < 0.001) and patients’ inspiratory muscle pressure passed from 8.5 ± 6.3 and 6.5 ± 5.5 cm H2O to 4.5 ± 3.1 and 4.2 ± 3.7 cm H2O (P < 0.001). In time, decreased inspiratory drive and effort determined by higher carbon dioxide extraction led to reduction of tidal volume from 6.6 ± 0.9 and 7.5 ± 1.2 ml/kg to 4.9 ± 0.8 and 5.3 ± 1.3 ml/kg (P < 0.001) and of peak airway pressure from 21 ± 3 and 25 ± 4 cm H2O to 21 ± 3 and 21 ± 5 cm H2O (P < 0.001). Finally, transpulmonary pressure linearly decreased when the amount of carbon dioxide extracted by ECMO increased (R2 = 0.823, P < 0.001).
Conclusions
In patients recovering from ARDS undergoing ECMO, the amount of carbon dioxide removed by the artificial lung may influence spontaneous breathing. The effects of carbon dioxide removal on spontaneous breathing during the earlier acute phases of ARDS remain to be elucidated.
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Early prediction of extracorporeal membrane oxygenation eligibility for severe acute respiratory distress syndrome in adults. J Crit Care 2016; 33:125-31. [DOI: 10.1016/j.jcrc.2016.01.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 12/22/2015] [Accepted: 01/15/2016] [Indexed: 12/26/2022]
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Safety and Efficacy of Combined Extracorporeal CO2 Removal and Renal Replacement Therapy in Patients With Acute Respiratory Distress Syndrome and Acute Kidney Injury: The Pulmonary and Renal Support in Acute Respiratory Distress Syndrome Study. Crit Care Med 2016; 43:2570-81. [PMID: 26488219 PMCID: PMC4648187 DOI: 10.1097/ccm.0000000000001296] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVE To assess the safety and efficacy of combining extracorporeal CO2 removal with continuous renal replacement therapy in patients presenting with acute respiratory distress syndrome and acute kidney injury. DESIGN Prospective human observational study. SETTINGS Patients received volume-controlled mechanical ventilation according to the acute respiratory distress syndrome net protocol. Continuous venovenous hemofiltration therapy was titrated to maintain maximum blood flow and an effluent flow of 45 mL/kg/h with 33% predilution. PATIENTS Eleven patients presenting with both acute respiratory distress syndrome and acute kidney injury required renal replacement therapy. INTERVENTIONS A membrane oxygenator (0.65 m) was inserted within the hemofiltration circuit, either upstream (n = 7) or downstream (n = 5) of the hemofilter. Baseline corresponded to tidal volume 6 mL/kg of predicted body weight without extracorporeal CO2 removal. The primary endpoint was 20% reduction in PaCO2 at 20 minutes after extracorporeal CO2 removal initiation. Tidal volume was subsequently reduced to 4 mL/kg for the remaining 72 hours. MEASUREMENTS AND MAIN RESULTS Twelve combined therapies were conducted in the 11 patients. Age was 70 ± 9 years, Simplified Acute Physiology Score II was 69 ± 13, Sequential Organ Failure Assessment score was 14 ± 4, lung injury score was 3 ± 0.5, and PaO2/FIO2 was 135 ± 41. Adding extracorporeal CO2 removal at tidal volume 6 mL/kg decreased PaCO2 by 21% (95% CI, 17-25%), from 47 ± 11 to 37 ± 8 Torr (p < 0.001). Lowering tidal volume to 4 mL/kg reduced minute ventilation from 7.8 ± 1.5 to 5.2 ± 1.1 L/min and plateau pressure from 25 ± 4 to 21 ± 3 cm H2O and raised PaCO2 from 37 ± 8 to 48 ± 10 Torr (all p < 0.001). On an average of both positions, the oxygenator's blood flow was 410 ± 30 mL/min and the CO2 removal rate was 83 ± 20 mL/min. The oxygenator blood flow (p <0.001) and the CO2 removal rate (p = 0.083) were higher when the membrane oxygenator was placed upstream of the hemofilter. There was no safety concern. CONCLUSIONS Combining extracorporeal CO2 removal and continuous venovenous hemofiltration in patients with acute respiratory distress syndrome and acute kidney injury is safe and allows efficient blood purification together with enhanced lung protective ventilation.
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Romagnoli S, Ricci Z, Ronco C. Novel Extracorporeal Therapies for Combined Renal-Pulmonary Dysfunction. Semin Nephrol 2016; 36:71-7. [DOI: 10.1016/j.semnephrol.2016.01.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Moerer O, Brodie D, Quintel M. Low-Flow Extracorporeal Carbon Dioxide Removal. Moving Closer to Reality. Am J Respir Crit Care Med 2015; 192:651-2. [PMID: 26371808 DOI: 10.1164/rccm.201506-1181ed] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Onnen Moerer
- 1 Department of Anesthesiology and Intensive Care Medicine Georg-August-University Goettingen Goettingen, Germany
| | - Daniel Brodie
- 2 Division of Pulmonary, Allergy, and Critical Care Medicine Columbia University College of Physicians and Surgeons New York, New York
| | - Michael Quintel
- 1 Department of Anesthesiology and Intensive Care Medicine Georg-August-University Goettingen Goettingen, Germany
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Papazian L, Jaber S. CO2 removal: Is a new simplified device could extended the indications? Anaesth Crit Care Pain Med 2015; 34:131-2. [PMID: 26048631 DOI: 10.1016/j.accpm.2015.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Laurent Papazian
- Intensive care unit "acute respiratory failure and severe infections", Assistance publique-hôpitaux de Marseille, CHU Nord, 13015 Marseille, France; Faculté de médecine, Aix-Marseille university, URMITE UMR CNRS 7278, 13005 Marseille, France.
| | - Samir Jaber
- Intensive Care Unit and Transplantation, Critical Care and Anesthesia Department (DAR B), Saint-Eloi Hospital, University of Montpellier, INSERM U1046, CNRS UMR 9214, 34295 Montpellier cedex 5, France
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Effects of ultraprotective ventilation, extracorporeal carbon dioxide removal, and spontaneous breathing on lung morphofunction and inflammation in experimental severe acute respiratory distress syndrome. Anesthesiology 2015; 122:631-46. [PMID: 25371037 DOI: 10.1097/aln.0000000000000504] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND To investigate the role of ultraprotective mechanical ventilation (UP-MV) and extracorporeal carbon dioxide removal with and without spontaneous breathing (SB) to improve respiratory function and lung protection in experimental severe acute respiratory distress syndrome. METHODS Severe acute respiratory distress syndrome was induced by saline lung lavage and mechanical ventilation (MV) with higher tidal volume (VT) in 28 anesthetized pigs (32.8 to 52.5 kg). Animals (n = 7 per group) were randomly assigned to 6 h of MV (airway pressure release ventilation) with: (1) conventional P-MV with VT ≈6 ml/kg (P-MVcontr); (2) UP-MV with VT ≈3 ml/kg (UP-MVcontr); (3) UP-MV with VT ≈3 ml/kg and SB (UP-MVspont); and (4) UP-MV with VT ≈3 ml/kg and pressure supported SB (UP-MVPS). In UP-MV groups, extracorporeal carbon dioxide removal was used. RESULTS The authors found that: (1) UP-MVcontr reduced diffuse alveolar damage score in dorsal lung zones (median[interquartile]) (12.0 [7.0 to 16.8] vs. 22.5 [13.8 to 40.8]), but worsened oxygenation and intrapulmonary shunt, compared to P-MVcontr; (2) UP-MVspont and UP-MVPS improved oxygenation and intrapulmonary shunt, and redistributed ventilation towards dorsal areas, as compared to UP-MVcontr; (3) compared to P-MVcontr, UP-MVcontr and UP-MVspont, UP-MVPS yielded higher levels of tumor necrosis factor-α (6.9 [6.5 to 10.1] vs. 2.8 [2.2 to 3.0], 3.6 [3.0 to 4.7] and 4.0 [2.8 to 4.4] pg/mg, respectively) and interleukin-8 (216.8 [113.5 to 343.5] vs. 59.8 [45.3 to 66.7], 37.6 [18.8 to 52.0], and 59.5 [36.1 to 79.7] pg/mg, respectively) in dorsal lung zones. CONCLUSIONS In this model of severe acute respiratory distress syndrome, MV with VT ≈3 ml/kg and extracorporeal carbon dioxide removal without SB slightly reduced lung histologic damage, but not inflammation, as compared to MV with VT = 4 to 6 ml/kg. During UP-MV, pressure supported SB increased lung inflammation.
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Ventilation in acute respiratory distress syndrome: less may be more, in more than one way. Crit Care Med 2014; 42:1581-2. [PMID: 24836810 DOI: 10.1097/ccm.0000000000000351] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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