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Martinsson A, Houltz E, Wallinder A, Magnusson J, Lindgren S, Stenqvist O, Thorén A. Inspiratory and end-expiratory effects of lung recruitment in the prone position on dorsal lung aeration - new physiological insights in a secondary analysis of a randomised controlled study in post-cardiac surgery patients. BJA OPEN 2022; 4:100105. [PMID: 37588783 PMCID: PMC10430825 DOI: 10.1016/j.bjao.2022.100105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 10/20/2022] [Indexed: 08/18/2023]
Abstract
Background Cardiac surgery produces dorso-basal atelectasis and ventilation/perfusion mismatch, associated with infection and prolonged intensive care. A postoperative lung volume recruitment manoeuvre to decrease the degree of atelectasis is routine. In patients with severe respiratory failure, prone positioning and recruitment manoeuvres may increase survival, oxygenation, or both. We compared the effects of lung recruitment in prone vs supine positions on dorsal inspiratory and end-expiratory lung aeration. Methods In a prospective RCT, 30 post-cardiac surgery patients were randomly allocated to recruitment manoeuvres in the prone (n=15) or supine position (n=15). The primary endpoints were late dorsal inspiratory volume (arbitrary units [a.u.]) and left/right dorsal end-expiratory lung volume change (a.u.), prone vs supine after extubation, measured using electrical impedance tomography. Secondary outcomes included left/right dorsal inspiratory volumes (a.u.) and left/right dorsal end-expiratory lung volume change (a.u.) after prone recruitment and extubation. Results The last part of dorsal end-inspiratory volume after extubation was higher after prone (49.1 a.u.; 95% confidence interval [CI], 37.4-60.6) vs supine recruitment (24.2 a.u.; 95% CI, 18.4-29.6; P=0.024). Improvement in left dorsal end-expiratory lung volume after extubation was higher after prone (382 a.u.; 95% CI, 261-502) vs supine recruitment (-71 a.u., 95% CI, -140 to -2; n=15; P<0.001). After prone recruitment, left vs right predominant end-expiratory dorsal lung volume change disappeared after extubation. However, both left and right end-expiratory volumes were higher in the prone group, after extubation. Conclusions Recruitment in the prone position improves dorsal inspiratory and end-expiratory lung volumes after cardiac surgery. Clinical trial registration NCT03009331.
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Affiliation(s)
- Andreas Martinsson
- Department of Anaesthesiology and Intensive Care Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
- Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Erik Houltz
- Department of Anaesthesiology and Intensive Care Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
- Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Andreas Wallinder
- Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- Department of Cardiothoracic Surgery, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Jesper Magnusson
- Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- Department of Pulmonary Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Sophie Lindgren
- Department of Anaesthesiology and Intensive Care Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
- Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Ola Stenqvist
- Department of Anaesthesiology and Intensive Care Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
- Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Anders Thorén
- Department of Anaesthesiology and Intensive Care Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
- Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
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Zheng YR, Chen YK, Lin SH, Cao H, Chen Q. Effect of high-frequency oscillatory ventilation combined with prone positioning in infants with acute respiratory distress syndrome after congenital heart surgery: A prospective randomized controlled trial. J Cardiothorac Vasc Anesth 2022; 36:3847-3854. [PMID: 35811277 PMCID: PMC9438013 DOI: 10.1053/j.jvca.2022.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/06/2022] [Accepted: 06/13/2022] [Indexed: 11/11/2022]
Abstract
Objectives This study aimed to evaluate the effect of high-frequency oscillatory ventilation, (HFOV) combined with prone positioning, on oxygenation and pulmonary ventilation in infants with acute respiratory distress syndrome (ARDS) after congenital heart surgery. Design A randomized controlled trial. Setting A single-center study at a tertiary teaching hospital. Participants Patients with postoperative ARDS after congenital heart disease were divided randomly into the following 2 groups: HFOV combined with prone position (HFOV-PP), and HFOV combined with supine position (HFOV-SP). Interventions The primary outcomes were the PaO2/FIO2 ratio and the oxygenation index after the intervention, and the secondary outcomes were respiratory variables, hemodynamics, complications, and other short-term outcomes. Results Sixty-five eligible infants with ARDS were randomized to either the HFOV-PP (n = 32) or HFOV-SP (n = 33) group. No significant difference in baseline data was found between the 2 groups (p > 0.05). Oxygenation was improved in both groups after HFOV intervention. Compared with the HFOV-SP group, the HFOV-PP group had significantly increased PaO2/FIO2 and oxygenation index and a shorter duration of invasive ventilation and length of cardiac intensive care unit stay. No serious complications occurred in the 2 groups. Conclusion HFOV-PP significantly improved oxygenation in infants with ARDS after cardiac surgery and had no serious complications.
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Santarpino G, Bonifazi R, Albanese M, Nicoletti A, Fiore F, Nasso G, Speziale G. Prone Positioning in Postoperative Cardiac Surgery Patients: A Narrative Review. J Cardiothorac Vasc Anesth 2021; 36:2636-2642. [PMID: 34417098 DOI: 10.1053/j.jvca.2021.07.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/23/2021] [Accepted: 07/26/2021] [Indexed: 11/11/2022]
Abstract
Limited data are available on the use of the prone position in cardiac surgery. Concerns in performing this maneuver in open cardiac surgery due to the risk of post-sternotomy wound infections and hemodynamic instability do not seem to be supported by existing evidence. Indeed, available data show that prone positioning may improve gas exchange in cardiac surgery patients as well. However, previous studies of prone positioning in this setting were heterogeneous in patient characteristics and outcomes evaluated. As a result, whether prone positioning also may be effective in reducing mortality in patients with postoperative acute respiratory failure, particularly in those who underwent surgery under extracorporeal circulation, remains to be clearly elucidated. The aim of this article is to provide an overview of available literature, which seems to suggest the efficacy of prone positioning, and to make an in-depth analysis of the studies on this topic by evaluating the efficacy of this maneuver on hard endpoints.
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Affiliation(s)
- Giuseppe Santarpino
- Department of Experimental and Clinical Medicine, Magna Graecia University, Catanzaro, Italy; Department of Cardiac Surgery, Paracelsus Medical University, Nuremberg, Germany; Department of Cardiac Surgery, Anthea Hospital, GVM Care & Research, Bari, Italy.
| | - Raffaele Bonifazi
- Department of Cardiac Surgery, Anthea Hospital, GVM Care & Research, Bari, Italy
| | - Marco Albanese
- Department of Anesthesiology, Cittá di Lecce Hospital, GVM Care & Research, Lecce, Italy
| | - Anna Nicoletti
- Department of Cardiac Surgery, Cittá di Lecce Hospital, GVM Care & Research, Lecce, Italy
| | - Flavio Fiore
- Department of Anesthesiology, Anthea Hospital, GVM Care & Research, Bari, Italy
| | - Giuseppe Nasso
- Department of Cardiac Surgery, Anthea Hospital, GVM Care & Research, Bari, Italy
| | - Giuseppe Speziale
- Department of Cardiac Surgery, Anthea Hospital, GVM Care & Research, Bari, Italy
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Martinsson A, Houltz E, Wallinder A, Lindgren S, Thorén A. Lung recruitment in the prone position after cardiac surgery: a randomised controlled study. Br J Anaesth 2021; 126:1067-1074. [PMID: 33602580 DOI: 10.1016/j.bja.2020.12.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 12/17/2020] [Accepted: 12/18/2020] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Atelectasis after cardiac surgery is common and promotes ventilation/perfusion mismatch, infection, and delayed discharge from critical care. Recruitment manoeuvres are often performed to reduce atelectasis. In severe respiratory failure, recruitment manoeuvres in the prone position may increase oxygenation, survival, or both. We compared the effects of recruitment manoeuvres in the prone vs supine position on lung aeration and oxygenation in cardiac surgical patients. METHODS Subjects were randomised to recruitment manoeuvres (40 cm H2O peak inspiratory pressure and 20 cm H2O PEEP for 30 s) in either the prone or supine position after uncomplicated cardiac surgery. The co-primary endpoints were lung aeration (end-expiratory lung volume measured by electrical impedance tomography (arbitrary units [a.u.]) and lung oxygenation (ratio of arterial oxygen partial pressure to fractional inspired oxygen [Pao2/FiO2 ratio]). Secondary outcomes included postoperative oxygen requirement and adverse events. RESULTS Thirty subjects (27% female; age, 48-81 yr) were recruited. Dorsal lung tidal volume was higher after prone recruitment manoeuvres (363 a.u.; 95% confidence intervals [CI], 283-443; n=15) after extubation, compared with supine recruitment manoeuvres (212 a.u.; 95% CI, 170-254; n=15; P<0.001). Prone recruitment manoeuvres increased dorsal end-expiratory lung volume by 724 a.u. (95% CI, 456-992) after extubation, compared with 163 a.u. decrease (95% CI, 73-252) after supine recruitment manoeuvres (P<0.001). The Pao2/FiO2 ratio after extubation was higher after prone recruitment manoeuvres (46.6; 95% CI, 40.7-53.0) compared with supine recruitment manoeuvres (39.3; 95% CI, 34.8-43.8; P=0.04). Oxygen therapy after extubation was shorter after prone (33 h [13]) vs supine recruitment manoeuvres (52 h [22]; P=0.01). No adverse events occurred. CONCLUSIONS Recruitment manoeuvres in the prone position after cardiac surgery improve lung aeration and oxygenation. CLINICAL TRIAL REGISTRATION NCT03009331.
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Affiliation(s)
- Andreas Martinsson
- Department of Anaesthesiology and Intensive Care Medicine, Sahlgrenska Academy, University of Gothenburg, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Erik Houltz
- Department of Anaesthesiology and Intensive Care Medicine, Sahlgrenska Academy, University of Gothenburg, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Andreas Wallinder
- Department of Cardiothoracic Surgery, Sahlgrenska Academy, University of Gothenburg, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Sophie Lindgren
- Department of Anaesthesiology and Intensive Care Medicine, Sahlgrenska Academy, University of Gothenburg, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Anders Thorén
- Department of Anaesthesiology and Intensive Care Medicine, Sahlgrenska Academy, University of Gothenburg, Sahlgrenska University Hospital, Gothenburg, Sweden.
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Zochios V, Klein AA, Gao F. Protective Invasive Ventilation in Cardiac Surgery: A Systematic Review With a Focus on Acute Lung Injury in Adult Cardiac Surgical Patients. J Cardiothorac Vasc Anesth 2018; 32:1922-1936. [DOI: 10.1053/j.jvca.2017.10.031] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Indexed: 12/19/2022]
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Bolzan DW, Trimer R, Begot I, Nasrala ML, Forestieri P, Mendez VM, Arena R, Gomes WJ, Guizilini S. Open-Lung Ventilation Improves Clinical Outcomes in Off-Pump Coronary Artery Bypass Surgery: A Randomized Controlled Trial. J Cardiothorac Vasc Anesth 2016; 30:702-8. [DOI: 10.1053/j.jvca.2015.09.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Indexed: 11/11/2022]
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Protection strategies during cardiopulmonary bypass: ventilation, anesthetics and oxygen. Curr Opin Anaesthesiol 2015; 28:73-80. [PMID: 25486490 DOI: 10.1097/aco.0000000000000143] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
PURPOSE OF REVIEW To provide an update of research findings regarding the protection strategies utilized for patients undergoing cardiopulmonary bypass (CPB), including perioperative ventilatory strategies, different anesthetic regimens, and inspiratory oxygen fraction. The article will review and comment on some of the most important findings in this field to provide a global view of strategies that may improve patient outcomes by reducing inflammation. RECENT FINDINGS Postoperative complications are directly related to ischemia and inflammation. The application of lung-protective ventilation with lower tidal volumes and higher positive end-expiratory pressure reduces inflammation, thereby reducing postoperative pulmonary complications. Although inhalation anesthesia has clear cardioprotective effects compared with intravenous anesthesia, several factors can interfere to reduce cardioprotection. Hyperoxia up to 0.8 FiO(2) may confer benefits without increasing oxidative stress or postoperative pulmonary complications. During the early postoperative period, inhalation anesthesia prior to extubation and the application of preventive noninvasive ventilation may reduce cardiac and pulmonary complications, improving patients' outcomes. SUMMARY Lung-protective mechanical ventilation, inhalation anesthesia, and high FiO(2) have the potential to reduce postoperative complications in patients undergoing CPB; however, larger, well powered, randomized control trials are still needed.
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Hall R. Identification of Inflammatory Mediators and Their Modulation by Strategies for the Management of the Systemic Inflammatory Response During Cardiac Surgery. J Cardiothorac Vasc Anesth 2013; 27:983-1033. [DOI: 10.1053/j.jvca.2012.09.013] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Indexed: 12/21/2022]
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Feussner M, Mukherjee C, Garbade J, Ender J. Anaesthesia for patients undergoing ventricular assist-device implantation. Best Pract Res Clin Anaesthesiol 2012; 26:167-77. [DOI: 10.1016/j.bpa.2012.06.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Revised: 06/04/2012] [Accepted: 06/04/2012] [Indexed: 01/03/2023]
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Imura H, Angelini GD, Suleiman SM, Ascione R. Reply to the Editor. J Thorac Cardiovasc Surg 2010. [DOI: 10.1016/j.jtcvs.2009.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Papadakos PJ, Lachmann B. The open lung concept of mechanical ventilation: the role of recruitment and stabilization. Crit Care Clin 2007; 23:241-50, ix-x. [PMID: 17368168 DOI: 10.1016/j.ccc.2006.12.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
This article describes the pathophysiologic basis and clinical role for lung recruitment maneuvers. It reviews the literature and presents the authors' clinical experience of over 15 years in the collaboration between Erasmus MC and the University of Rochester. The authors are hopeful that these lung-protective strategies are presented in a useful format that may be useful to the practicing intensivist, thus bringing laboratory and clinical research to bedside practice.
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Affiliation(s)
- Peter J Papadakos
- Department of Anesthesiology, University of Rochester School of Medicine and Dentistry, Box 604, 601 Elmwood Avenue, Rochester, NY 14642, USA.
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