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Pham T, Heunks L, Bellani G, Madotto F, Aragao I, Beduneau G, Goligher EC, Grasselli G, Laake JH, Mancebo J, Peñuelas O, Piquilloud L, Pesenti A, Wunsch H, van Haren F, Brochard L, Laffey JG, Acharya SP, Amin P, Arabi Y, Aragao I, Bauer P, Beduneau G, Beitler J, Berkius J, Bugedo G, Camporota L, Cerny V, Cho YJ, Clarkson K, Estenssoro E, Goligher E, Grasselli G, Gritsan A, Hashemian SM, Hermans G, Heunks LM, Jovanovic B, Kurahashi K, Laake JH, Matamis D, Moerer O, Molnar Z, Ozyilmaz E, Panka B, Papali A, Peñuelas Ó, Perbet S, Piquilloud L, Qiu H, Razek AA, Rittayamai N, Roldan R, Serpa Neto A, Szuldrzynski K, Talmor D, Tomescu D, Van Haren F, Villagomez A, Zeggwagh AA, Abe T, Aboshady A, Acampo-de Jong M, Acharya S, Adderley J, Adiguzel N, Agrawal VK, Aguilar G, Aguirre G, Aguirre-Bermeo H, Ahlström B, Akbas T, Akker M, Al Sadeh G, Alamri S, Algaba A, Ali M, Aliberti A, Allegue JM, Alvarez D, Amador J, Andersen FH, Ansari S, Apichatbutr Y, Apostolopoulou O, Arabi Y, Arellano D, Arica 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H, Zhang J, Zhang H, Zhang W, Zhang G, Zhang W, Zhao H, Zheng J, Zhu B, Zumaran R. Weaning from mechanical ventilation in intensive care units across 50 countries (WEAN SAFE): a multicentre, prospective, observational cohort study. Lancet Respir Med 2023; 11:465-476. [PMID: 36693401 DOI: 10.1016/s2213-2600(22)00449-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 11/07/2022] [Accepted: 11/10/2022] [Indexed: 01/23/2023]
Abstract
BACKGROUND Current management practices and outcomes in weaning from invasive mechanical ventilation are poorly understood. We aimed to describe the epidemiology, management, timings, risk for failure, and outcomes of weaning in patients requiring at least 2 days of invasive mechanical ventilation. METHODS WEAN SAFE was an international, multicentre, prospective, observational cohort study done in 481 intensive care units in 50 countries. Eligible participants were older than 16 years, admitted to a participating intensive care unit, and receiving mechanical ventilation for 2 calendar days or longer. We defined weaning initiation as the first attempt to separate a patient from the ventilator, successful weaning as no reintubation or death within 7 days of extubation, and weaning eligibility criteria based on positive end-expiratory pressure, fractional concentration of oxygen in inspired air, and vasopressors. The primary outcome was the proportion of patients successfully weaned at 90 days. Key secondary outcomes included weaning duration, timing of weaning events, factors associated with weaning delay and weaning failure, and hospital outcomes. This study is registered with ClinicalTrials.gov, NCT03255109. FINDINGS Between Oct 4, 2017, and June 25, 2018, 10 232 patients were screened for eligibility, of whom 5869 were enrolled. 4523 (77·1%) patients underwent at least one separation attempt and 3817 (65·0%) patients were successfully weaned from ventilation at day 90. 237 (4·0%) patients were transferred before any separation attempt, 153 (2·6%) were transferred after at least one separation attempt and not successfully weaned, and 1662 (28·3%) died while invasively ventilated. The median time from fulfilling weaning eligibility criteria to first separation attempt was 1 day (IQR 0-4), and 1013 (22·4%) patients had a delay in initiating first separation of 5 or more days. Of the 4523 (77·1%) patients with separation attempts, 2927 (64·7%) had a short wean (≤1 day), 457 (10·1%) had intermediate weaning (2-6 days), 433 (9·6%) required prolonged weaning (≥7 days), and 706 (15·6%) had weaning failure. Higher sedation scores were independently associated with delayed initiation of weaning. Delayed initiation of weaning and higher sedation scores were independently associated with weaning failure. 1742 (31·8%) of 5479 patients died in the intensive care unit and 2095 (38·3%) of 5465 patients died in hospital. INTERPRETATION In critically ill patients receiving at least 2 days of invasive mechanical ventilation, only 65% were weaned at 90 days. A better understanding of factors that delay the weaning process, such as delays in weaning initiation or excessive sedation levels, might improve weaning success rates. FUNDING European Society of Intensive Care Medicine, European Respiratory Society.
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Affiliation(s)
- Tài Pham
- Service de Médecine Intensive-Réanimation, AP-HP, Hôpital de Bicêtre, DMU CORREVE, FHU SEPSIS, Groupe de Recherche CARMAS, Hôpitaux Universitaires Paris-Saclay, Le Kremlin-Bicêtre, France; Université Paris-Saclay, UVSQ, Université Paris-Sud, Inserm U1018, Equipe d'Epidémiologie Respiratoire Intégrative, CESP, 94807, Villejuif, France
| | - Leo Heunks
- Department of Intensive Care Medicine, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Giacomo Bellani
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy; Department of Emergency and Intensive Care, University Hospital San Gerardo, Monza, Italy
| | - Fabiana Madotto
- Department of Anaesthesia, Intensive Care and Emergency, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Irene Aragao
- Department of Intensive Care Medicine, Centro Hospitalar Universitário do Porto, Porto, Portugal
| | - Gaëtan Beduneau
- Normandie University, UNIROUEN, UR 3830, CHU Rouen, Department of Medical Intensive Care, F-76000 Rouen, France
| | - Ewan C Goligher
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Canada; Department of Medicine, Division of Respirology, Toronto General Hospital Research Institute University Health Network, Toronto, Canada
| | - Giacomo Grasselli
- Department of Anaesthesia, Intensive Care and Emergency, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Jon Henrik Laake
- Department of Anaesthesiology and Department of Research and Development, Division of Critical Care and Emergencies, Oslo University Hospital, Oslo, Norway
| | - Jordi Mancebo
- Department of Intensive Care Medicine, Hospital Universitari Sant Pau, Barcelona, Spain
| | - Oscar Peñuelas
- Intensive Care Unit, Hospital Universitario de Getafe, Madrid, Spain; Centro de Investigación Biomédica en Red, CIBER de Enfermedades Respiratorias, CIBERES, Madrid, Spain
| | - Lise Piquilloud
- Adult Intensive Care Unit, University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Antonio Pesenti
- Department of Anaesthesia, Intensive Care and Emergency, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Hannah Wunsch
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Canada; Department of Critical Care Medicine, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Frank van Haren
- College of Health and Medicine, Australian National University, Canberra, ACT, Australia; Intensive Care Unit, St George Hospital, Sydney, NSW, Australia
| | - Laurent Brochard
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Canada; Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St Michael's Hospital, Unity Health Toronto, Toronto, ON, Canada
| | - John G Laffey
- Anaesthesia and Intensive Care Medicine, School of Medicine, Clinical Sciences Institute, Galway University Hospitals, Galway, Ireland; School of Medicine, Regenerative Medicine Institute (REMEDI) at CÚRAM Centre for Research in Medical Devices, National University of Ireland Galway, Galway, Ireland.
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Villar J, Belda J, Blanco J, Suarez-Sipmann F, Añón JM, Pérez-Méndez L, Ferrando C, Parrilla D, Montiel R, Corpas R, González-Higueras E, Pestaña D, Martínez D, Fernández L, Soro M, García-Bello MA, Fernández RL, Kacmarek RM. Neurally adjusted ventilatory assist in patients with acute respiratory failure: study protocol for a randomized controlled trial. Trials 2016; 17:500. [PMID: 27737690 PMCID: PMC5064782 DOI: 10.1186/s13063-016-1625-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 09/25/2016] [Indexed: 12/25/2022] Open
Abstract
Background Patient-ventilator asynchrony is a common problem in mechanically ventilated patients with acute respiratory failure. It is assumed that asynchronies worsen lung function and prolong the duration of mechanical ventilation (MV). Neurally Adjusted Ventilatory Assist (NAVA) is a novel approach to MV based on neural respiratory center output that is able to trigger, cycle, and regulate the ventilatory cycle. We hypothesized that the use of NAVA compared to conventional lung-protective MV will result in a reduction of the duration of MV. It is further hypothesized that NAVA compared to conventional lung-protective MV will result in a decrease in the length of ICU and hospital stay, and mortality. Methods/design This is a prospective, multicenter, randomized controlled trial in 306 mechanically ventilated patients with acute respiratory failure from several etiologies. Only patients ventilated for less than 5 days, and who are expected to require prolonged MV for an additional 72 h or more and are able to breathe spontaneously, will be considered for enrollment. Eligible patients will be randomly allocated to two ventilatory arms: (1) conventional lung-protective MV (n = 153) and conventional lung-protective MV with NAVA (n = 153). Primary outcome is the number of ventilator-free days, defined as days alive and free from MV at day 28 after endotracheal intubation. Secondary outcomes are total length of MV, and ICU and hospital mortality. Discussion This is the first randomized clinical trial examining, on a multicenter scale, the beneficial effects of NAVA in reducing the dependency on MV of patients with acute respiratory failure. Trial registration ClinicalTrials.gov website (NCT01730794). Registered on 15 November 2012. Electronic supplementary material The online version of this article (doi:10.1186/s13063-016-1625-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jesús Villar
- CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Monforte de Lemos 3-5, Pabellon 11, 28029, Madrid, Spain. .,Multidisciplinary Organ Dysfunction Evaluation Research Network, Research Unit, Hospital Universitario Dr. Negrín, Barranco de la Ballena s/n, 4th Floor-South Wing, 35019, Las Palmas de Gran Canaria, Spain. .,Keenan Research Center for Biomedical Science at the Li Ka Shing Knowledge Institute, St. Michael's Hospital, 30 Bond St, Toronto, ON, M5B 1W8, Canada.
| | - Javier Belda
- Department of Anesthesiology, Hospital Clínico Universitario de Valencia, Avda. Blasco Ibañez 17, 46010, Valencia, Spain
| | - Jesús Blanco
- CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Monforte de Lemos 3-5, Pabellon 11, 28029, Madrid, Spain.,Intensive Care Unit, Hospital Universitario Río Hortega, Calle Dulzaina, 2, 47012, Valladolid, Spain
| | - Fernando Suarez-Sipmann
- CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Monforte de Lemos 3-5, Pabellon 11, 28029, Madrid, Spain.,Hedenstierna Laboratory, Department of Surgical Sciences, Uppsala University Hospital, Akademiska Sjukhuset, Ing 40, Tr 3, SE-75185, Uppsala, Sweden
| | - José Manuel Añón
- Intensive Care Unit, Hospital Virgen de La Luz, Hermandad de Donantes de Sangre s/n, 16002, Cuenca, Spain
| | - Lina Pérez-Méndez
- CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Monforte de Lemos 3-5, Pabellon 11, 28029, Madrid, Spain.,Division of Clinical Epidemiology and Biostatistics, Research Unit, Hospital Universitario NS de Candelaria, Carretera General del Rosario 145, 38010, Santa Cruz de Tenerife, Spain
| | - Carlos Ferrando
- Department of Anesthesiology, Hospital Clínico Universitario de Valencia, Avda. Blasco Ibañez 17, 46010, Valencia, Spain
| | - Dácil Parrilla
- Intensive Care Unit, Hospital Universitario NS de Candelaria, Carretera General del Rosario 145, 38010, Santa Cruz de Tenerife, Spain
| | - Raquel Montiel
- Intensive Care Unit, Hospital Universitario NS de Candelaria, Carretera General del Rosario 145, 38010, Santa Cruz de Tenerife, Spain
| | - Ruth Corpas
- Intensive Care Unit, Hospital General NS del Prado, Carretera de Madrid, Km. 114, 45600, Talavera de la Reina, Toledo, Spain
| | - Elena González-Higueras
- Intensive Care Unit, Hospital Virgen de La Luz, Hermandad de Donantes de Sangre s/n, 16002, Cuenca, Spain
| | - David Pestaña
- Department of Anesthesiology, Hospital Universitario Ramón y Cajal, Carretera de Colmenar Viejo, Km. 9,100, 28034, Madrid, Spain
| | - Domingo Martínez
- Intensive Care Unit, Hospital Universitario Virgen de la Arrixaca, Carretera Madrid-Cartagena s/n, 30120, El Palmar, Murcia, Spain
| | - Lorena Fernández
- Intensive Care Unit, Hospital Universitario Río Hortega, Calle Dulzaina, 2, 47012, Valladolid, Spain
| | - Marina Soro
- Department of Anesthesiology, Hospital Clínico Universitario de Valencia, Avda. Blasco Ibañez 17, 46010, Valencia, Spain
| | - Miguel Angel García-Bello
- Division of Biostatistics, Research Unit, Hospital Universitario Dr. Negrín, Barranco de la Ballena s/n, 35019, Las Palmas de Gran Canaria, Spain
| | - Rosa Lidia Fernández
- CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Monforte de Lemos 3-5, Pabellon 11, 28029, Madrid, Spain.,Multidisciplinary Organ Dysfunction Evaluation Research Network, Research Unit, Hospital Universitario Dr. Negrín, Barranco de la Ballena s/n, 4th Floor-South Wing, 35019, Las Palmas de Gran Canaria, Spain
| | - Robert M Kacmarek
- Department of Respiratory Care, Massachusetts General Hospital, 55 Fruit St, Boston, MA, 02114, USA.,Department of Anesthesiology, Harvard University, 55 Fruit Street Gray-Bigelow 444, Boston, MA, 02144, USA
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