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Fully automated postoperative ventilation in cardiac surgery patients: a randomised clinical trial. Br J Anaesth 2020; 125:739-749. [PMID: 32739044 DOI: 10.1016/j.bja.2020.06.037] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 05/27/2020] [Accepted: 06/19/2020] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Ensuring that lung-protective ventilation is achieved at scale is challenging in perioperative practice. Fully automated ventilation may be more effective in delivering lung-protective ventilation. Here, we compared automated lung-protective ventilation with conventional ventilation after elective cardiac surgery in haemodynamically stable patients. METHODS In this single-centre investigator-led study, patients were randomly assigned at the end of cardiac surgery to receive either automated (adaptive support ventilation) or conventional ventilation. The primary endpoint was the proportion of postoperative ventilation time characterised by exposure to predefined optimal, acceptable, and critical (injurious) ventilatory parameters in the first three postoperative hours. Secondary outcomes included severe hypoxaemia (Spo2 <85%) and resumption of spontaneous breathing. Data are presented as mean (95% confidence intervals [CIs]). RESULTS We randomised 220 patients (30.4% females; age: 62-76 yr). Subjects randomised to automated ventilation (n=109) spent a 29.7% (95% CI: 22.1-37.4) higher mean proportion of postoperative ventilation time receiving optimal postoperative ventilation after surgery (P<0.001) compared with subjects receiving conventional postoperative ventilation (n=111). Automated ventilation also reduced the proportion of postoperative ventilation time that subjects were exposed to injurious ventilatory settings by 2.5% (95% CI: 1-4; P=0.003). Severe hypoxaemia was less likely in subjects randomised to automated ventilation (risk ratio: 0.26 [0.22-0.31]; P<0.01). Subjects resumed spontaneous breathing more rapidly when randomised to automated ventilation (hazard ratio: 1.38 [1.05-1.83]; P=0.03). CONCLUSIONS Fully automated ventilation in haemodynamically stable patients after cardiac surgery optimised lung-protective ventilation during postoperative ventilation, with fewer episodes of severe hypoxaemia and an accelerated resumption of spontaneous breathing. CLINICAL TRIAL REGISTRATION NCT03180203.
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Bion J, Antonelli M, Blanch LL, Curtis JR, Druml C, Du B, Machado FR, Gomersall C, Hartog C, Levy M, Myburgh J, Rubenfeld G, Sprung C. White paper: statement on conflicts of interest. Intensive Care Med 2018; 44:1657-1668. [PMID: 30191294 DOI: 10.1007/s00134-018-5349-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 08/14/2018] [Indexed: 01/31/2023]
Abstract
INTRODUCTION Conflicts of interest are a normal part of human social intercourse. They become problematic when there is a power differential between participants in the setting of relationships requiring a high degree of trust, as in healthcare. In this white paper we consider how these conflicts may be detected and mitigated. METHODS Following Medline search and reference chaining, we undertook a narrative review of the literature with iterative discussion. RESULTS Conflicts of interest may be financial, professional or personal, and may operate at the level of the individual or the organisation. Unmanaged, they become a source of bias which places the interests of the professional or the organisation before those of the patient. Reported with increasing frequency, conflicts damage trust, harm patients, and defraud the health system. We make 15 recommendations for minimising conflicts of interest. CONCLUSIONS Nationally funded open-access registries should be established to permit complete disclosure of financial, professional, and personal relationships with the potential for driving bias in research, clinical practice, or health management. Governance of disclosure should be the responsibility of employing organisations through annual staff appraisals, audited by national research integrity committees. Research fraud should incur suspension of the license to practice. Organisations should monitor staff perceptions of ethical climate to enhance awareness of staff behaviours and the potential for misconduct driven by academic pressures. Clear separation of advisory and voting roles is needed in best practice guideline panels. Professional societies and scientific journals should display conflict of interest policies for their own staff and officers as well as for speakers and authors. Undergraduates should not be exposed to pharmaceutical promotions masquerading as education. Undergraduate and postgraduate training programmes should include teaching about managing conflicts of interest and identifying research misconduct.
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Affiliation(s)
- Julian Bion
- University Department of Intensive Care Medicine, University of Birmingham, Ground Floor East Wing, Queen Elizabeth Hospital (Heritage Site), Birmingham, B15 2GW, UK.
| | - Massimo Antonelli
- Department of Intensive Care Medicine, Anesthesiology and Emergency Medicine, Fondazione Policlicnico Universitario A. Gemelli IRCCS-Università Cattolica del Sacro Cuore, Rome, Italy
| | - LLuis Blanch
- Parc Tauli University Hospital, CIBER Enfermedades Respiratorias, Institut de Investigació i Innovació Parc Taulí, Universitat Autònoma de Barcelona, Sabadell, Spain
| | - J Randall Curtis
- Cambia Palliative Care Center of Excellence at UW Medicine, A. Bruce Montgomery-American Lung Association Endowed Chair in Pulmonary and Critical Care Medicine Harborview Medical Center, University of Washington, 325 Ninth Avenue, Box 359762, Seattle, WA, 98104, USA
| | - Christiane Druml
- UNESCO Chair on Bioethics of the Medical University of Vienna, Ethics, Collections and History of Medicine, Waehringerstrasse 25, 1090, Vienna, Austria
| | - Bin Du
- Medical Intensive Care Unit, Peking Union Medicine College Hospital, 1 Shuai Fu Yuan, Beijing, 100730, China
| | - Flavia R Machado
- Anesthesiology, Pain, and Intensive Care Department, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Charles Gomersall
- Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Christiane Hartog
- Department of Anaesthesiology and Intensive Care Medicine, Centre for Sepsis Care and Control, Jena University Hospital, 07747, Jena, Germany
| | - Mitchell Levy
- Pulmonary and Critical Care Medicine Alpert Medical School of Brown University, Rhode Island Hospital, Providence, USA
| | - John Myburgh
- The George Institute for Global Health, Level 5, 1 King St, Newtown, NSW, 2042, Australia
| | - Gordon Rubenfeld
- Interdepartmental Division of Critical Care Medicine, University of Toronto, 2075 Bayview Avenue, Room D108c, Toronto, ON, M4N 3M5, Canada
| | - Charles Sprung
- Department of Anesthesiology and Critical Care Medicine, Hadassah Hebrew University Medical Center, Jerusalem, Israel
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Turnbull AE, Sahetya SK, Biddison ELD, Hartog CS, Rubenfeld GD, Benoit DD, Guidet B, Gerritsen RT, Tonelli MR, Curtis JR. Competing and conflicting interests in the care of critically ill patients. Intensive Care Med 2018; 44:1628-1637. [PMID: 30046872 DOI: 10.1007/s00134-018-5326-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 07/16/2018] [Indexed: 12/26/2022]
Abstract
Medical professionals are expected to prioritize patient interests, and most patients trust physicians to act in their best interest. However, a single patient is never a physician's sole concern. The competing interests of other patients, clinicians, family members, hospital administrators, regulators, insurers, and trainees are omnipresent. While prioritizing patient interests is always a struggle, it is especially challenging and important in the ICU setting where most patients lack the ability to advocate for themselves or seek alternative sources of care. This review explores factors that increase the risk, or the perception, that an ICU physician will reason, recommend, or act in a way that is not in their patient's best interest and discusses steps that could help minimize the impact of these factors on patient care.
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Affiliation(s)
- Alison E Turnbull
- Division of Pulmonary and Critical Care Medicine, School of Medicine, Johns Hopkins University, 1830 E. Monument St, 5th Floor, Baltimore, MD, 21205, USA. .,Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA. .,Outcomes After Critical Illness and Surgery (OACIS) Group, Johns Hopkins University, Baltimore, MD, USA.
| | - Sarina K Sahetya
- Division of Pulmonary and Critical Care Medicine, School of Medicine, Johns Hopkins University, 1830 E. Monument St, 5th Floor, Baltimore, MD, 21205, USA
| | - E Lee Daugherty Biddison
- Division of Pulmonary and Critical Care Medicine, School of Medicine, Johns Hopkins University, 1830 E. Monument St, 5th Floor, Baltimore, MD, 21205, USA
| | - Christiane S Hartog
- Department for Anesthesiology and Intensive Care, Jena University Hospital, Jena, Germany.,Department of Anaesthesiology and Operative Intensive Care Medicine, Charité Universitätsmedizin Berlin, Kreischa, Germany.,Patient- and Family-Centered Care, Klinik Bavaria, Kreischa, Germany
| | - Gordon D Rubenfeld
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON, Canada.,Department of Critical Care Medicine, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | | | - Bertrand Guidet
- Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpital Saint-Antoine, Service de Réanimation Médicale, Paris, France.,Sorbonne Universités, Université Pierre et Marie Curie, Paris, France.,Institut National de la Santé et de la Recherche Médicale (INSERM), UMR S 1136, Institut Pierre Louis d'Épidémiologie et de Santé Publique, Paris, France
| | - Rik T Gerritsen
- Department of Intensive Care, Medisch Centrum Leeuwarden, Leeuwarden, The Netherlands
| | - Mark R Tonelli
- Department of Bioethics and Humanities, University of Washington, Seattle, WA, USA.,Division of Pulmonary, Critical Care, and Sleep Medicine, University of Washington, Seattle, WA, USA
| | - J Randall Curtis
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of Washington, Seattle, WA, USA.,Cambia Palliative Care Center of Excellence, University of Washington, Seattle, WA, USA
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