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Khaled L, Godet T, Jaber S, Chanques G, Asehnoune K, Bourdier J, Araujo L, Futier E, Pereira B. Intraoperative protective mechanical ventilation in patients requiring emergency abdominal surgery: the multicentre prospective randomised IMPROVE-2 study protocol. BMJ Open 2022; 12:e054823. [PMID: 35523498 PMCID: PMC9083403 DOI: 10.1136/bmjopen-2021-054823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
UNLABELLED IntroductionEmergency abdominal surgery is associated with a high risk of postoperative complications. One of the most serious is postoperative respiratory failure (PRF), with reported rates up to 20%-30% and attributable 30-day mortality that can exceed 20%.Lung-protective ventilation, especially the use of low tidal volume, may help reducing the risk of lung injury. The role of positive end-expiratory pressure (PEEP) and recruitment manoeuvre (RM) remains however debated. We aim to evaluate whether a strategy aimed at increasing alveolar recruitment by using higher PEEP levels and RM could be more effective at reducing PRF and mortality after emergency abdominal surgery than a strategy aimed at minimising alveolar distension by using lower PEEP levels without RM. METHODS AND ANALYSIS The IMPROVE-2 study is a multicentre randomised, parallel-group clinical trial of 680 patients requiring emergency abdominal surgery under general anaesthesia. Patients will be randomly allocated in a 1:1 ratio to receive either low PEEP levels (≤5 cm H2O) without RM or high PEEP levels individually adjusted according to driving pressure in addition to RM, stratified by centre and according to the presence of shock and hypoxaemia at randomisation. The primary endpoint is a composite of PRF and all-cause mortality by day 30 or hospital discharge. Data will be analysed on the intention-to-treat principle and a per-protocol basis. ETHICS AND DISSEMINATION IMPROVE-2 trial has been approved by an independent ethics committee for all study centres. Participant recruitment began in February 2021. Results will be submitted for publication in international peer-reviewed journals. TRIAL REGISTRATION NUMBER NCT03987789.
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Affiliation(s)
- Louisa Khaled
- Departement Anesthésie Réanimation, Centre Hospitalier Universitaire (CHU) Clermont-Ferrand, Clermont-Ferrand, France
| | - Thomas Godet
- Departement Anesthésie Réanimation, Centre Hospitalier Universitaire (CHU) Clermont-Ferrand, Clermont-Ferrand, France
| | - Samir Jaber
- Département Anesthésie Réanimation B (DAR B), Centre Hospitalier Universitaire (CHU) Montpellier, Montpellier, France
| | - Gerald Chanques
- Département Anesthésie Réanimation B (DAR B), Centre Hospitalier Universitaire (CHU) Montpellier, Montpellier, France
| | - Karim Asehnoune
- Département Anesthésie Réanimation, Centre Hospitalier Universitaire (CHU) Nantes, Nantes, France
| | - Justine Bourdier
- Direction de la Recherche Clinique & Innovation (DRCI), CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Lynda Araujo
- Direction de la Recherche Clinique & Innovation (DRCI), CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Emmanuel Futier
- Departement Anesthésie Réanimation, Centre Hospitalier Universitaire (CHU) Clermont-Ferrand, Clermont-Ferrand, France
- Inserm U-1103, Université Clermont Auvergne (UCA), Clermont-Ferrand, France
| | - Bruno Pereira
- Direction de la Recherche Clinique & Innovation (DRCI), CHU Clermont-Ferrand, Clermont-Ferrand, France
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Smith DK, Freundlich RE, Shinn JR, Wood CB, Rohde SL, McEvoy MD. An improved predictive model for postoperative pulmonary complications after free flap reconstructions in the head and neck. Head Neck 2021; 43:2178-2184. [PMID: 33783905 DOI: 10.1002/hed.26689] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 02/11/2021] [Accepted: 03/16/2021] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Commonly used predictive models for postoperative pulmonary complications (PPCs) do not perform when applied to head and neck cases. A head and neck-specific risk prediction tool is needed. METHODS Data on 794 free flap head and neck surgery cases at a single center were abstracted from the electronic medical record. Each case was reviewed for the development of PPCs. A predictive model was developed and was then compared to existing predictive models for PPCs. RESULTS The least absolute shrinkage and selection operator procedure identified age, alcohol use, history of congestive heart failure, preoperative packed cell volume, preoperative oxygen saturation, and preoperative metabolic equivalents as predictors of PPCs in the head and neck population. The model demonstrated an area under the receiving operating characteristic curve of 0.75 (0.69-0.80) with moderately good calibration. Comparisons to the performance of existing models demonstrate superior performance. CONCLUSIONS The model for the development of PPCs developed in this article displays superior performance to existing models.
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Affiliation(s)
- Derek K Smith
- Department of Oral and Maxillofacial Surgery and Biostatistics, Vanderbilt University Medical Center, Nashville, Tennessee, USA.,Department of Biostatistics, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Robert E Freundlich
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, Tennessee, USA.,Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Justin R Shinn
- Department of Otolaryngology-Head and Neck Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - C Burton Wood
- Department of Otolaryngology-Head and Neck Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Sarah L Rohde
- Department of Otolaryngology-Head and Neck Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Matthew D McEvoy
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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3
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Su K, Wang J, Lv Y, Tian M, Zhao YY, Minshall RD, Hu G. YAP expression in endothelial cells prevents ventilator-induced lung injury. Am J Physiol Lung Cell Mol Physiol 2021; 320:L568-L582. [PMID: 33565367 DOI: 10.1152/ajplung.00472.2020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Ventilator-induced lung injury is associated with an increase in mortality in patients with respiratory dysfunction, although mechanical ventilation is an essential intervention implemented in the intensive care unit. Intrinsic molecular mechanisms for minimizing lung inflammatory injury during mechanical ventilation remain poorly defined. We hypothesize that Yes-associated protein (YAP) expression in endothelial cells protects the lung against ventilator-induced injury. Wild-type and endothelial-specific YAP-deficient mice were subjected to a low (7 mL/kg) or high (21 mL/kg) tidal volume (VT) ventilation for 4 h. Infiltration of inflammatory cells into the lung, vascular permeability, lung histopathology, and the levels of inflammatory cytokines were measured. Here, we showed that mechanical ventilation with high VT upregulated YAP protein expression in pulmonary endothelial cells. Endothelial-specific YAP knockout mice following high VT ventilation exhibited increased neutrophil counts and protein content in bronchoalveolar lavage fluid, Evans blue leakage, and histological lung injury compared with wild-type littermate controls. Deletion of YAP in endothelial cells exaggerated vascular endothelial (VE)-cadherin phosphorylation, downregulation of vascular endothelial protein tyrosine phosphatase (VE-PTP), and dissociation of VE-cadherin and catenins following mechanical ventilation. Importantly, exogenous expression of wild-type VE-PTP in the pulmonary vasculature rescued YAP ablation-induced increases in neutrophil counts and protein content in bronchoalveolar lavage fluid, vascular leakage, and histological lung injury as well as VE-cadherin phosphorylation and dissociation from catenins following ventilation. These data demonstrate that YAP expression in endothelial cells suppresses lung inflammatory response and edema formation by modulating VE-PTP-mediated VE-cadherin phosphorylation and thus plays a protective role in ventilator-induced lung injury.
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Affiliation(s)
- Kai Su
- Department of Anesthesiology, University of Illinois College of Medicine, Chicago, Illinois.,Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Jianguo Wang
- Department of Anesthesiology, University of Illinois College of Medicine, Chicago, Illinois.,Department of Anesthesiology, Affiliated Hospital of Jining Medical University, Shandong, China
| | - Yang Lv
- Department of Anesthesiology, University of Illinois College of Medicine, Chicago, Illinois
| | - Ming Tian
- Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - You-Yang Zhao
- Program for Lung and Vascular Biology, Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois.,Division of Critical Care, Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Richard D Minshall
- Department of Anesthesiology, University of Illinois College of Medicine, Chicago, Illinois.,Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois
| | - Guochang Hu
- Department of Anesthesiology, University of Illinois College of Medicine, Chicago, Illinois.,Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois
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Odor PM, Bampoe S, Gilhooly D, Creagh-Brown B, Moonesinghe SR. Perioperative interventions for prevention of postoperative pulmonary complications: systematic review and meta-analysis. BMJ 2020; 368:m540. [PMID: 32161042 PMCID: PMC7190038 DOI: 10.1136/bmj.m540] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
OBJECTIVE To identify, appraise, and synthesise the best available evidence on the efficacy of perioperative interventions to reduce postoperative pulmonary complications (PPCs) in adult patients undergoing non-cardiac surgery. DESIGN Systematic review and meta-analysis of randomised controlled trials. DATA SOURCES Medline, Embase, CINHAL, and CENTRAL from January 1990 to December 2017. ELIGIBILITY CRITERIA Randomised controlled trials investigating short term, protocolised medical interventions conducted before, during, or after non-cardiac surgery were included. Trials with clinical diagnostic criteria for PPC outcomes were included. Studies of surgical technique or physiological or biochemical outcomes were excluded. DATA EXTRACTION AND SYNTHESIS Reviewers independently identified studies, extracted data, and assessed the quality of evidence. Meta-analyses were conducted to calculate risk ratios with 95% confidence intervals. Quality of evidence was summarised in accordance with GRADE methods. The primary outcome was the incidence of PPCs. Secondary outcomes were respiratory infection, atelectasis, length of hospital stay, and mortality. Trial sequential analysis was used to investigate the reliability and conclusiveness of available evidence. Adverse effects of interventions were not measured or compared. RESULTS 117 trials enrolled 21 940 participants, investigating 11 categories of intervention. 95 randomised controlled trials enrolling 18 062 participants were included in meta-analysis; 22 trials were excluded from meta-analysis because the interventions were not sufficiently similar to be pooled. No high quality evidence was found for interventions to reduce the primary outcome (incidence of PPCs). Seven interventions had low or moderate quality evidence with confidence intervals indicating a probable reduction in PPCs: enhanced recovery pathways (risk ratio 0.35, 95% confidence interval 0.21 to 0.58), prophylactic mucolytics (0.40, 0.23 to 0.67), postoperative continuous positive airway pressure ventilation (0.49, 0.24 to 0.99), lung protective intraoperative ventilation (0.52, 0.30 to 0.88), prophylactic respiratory physiotherapy (0.55, 0.32 to 0.93), epidural analgesia (0.77, 0.65 to 0.92), and goal directed haemodynamic therapy (0.87, 0.77 to 0.98). Moderate quality evidence showed no benefit for incentive spirometry in preventing PPCs. Trial sequential analysis adjustment confidently supported a relative risk reduction of 25% in PPCs for prophylactic respiratory physiotherapy, epidural analgesia, enhanced recovery pathways, and goal directed haemodynamic therapies. Insufficient data were available to support or refute equivalent relative risk reductions for other interventions. CONCLUSIONS Predominantly low quality evidence favours multiple perioperative PPC reduction strategies. Clinicians may choose to reassess their perioperative care pathways, but the results indicate that new trials with a low risk of bias are needed to obtain conclusive evidence of efficacy for many of these interventions. STUDY REGISTRATION Prospero CRD42016035662.
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Affiliation(s)
- Peter M Odor
- Department of Anaesthesia and Perioperative Medicine, University College Hospital, London, UK
| | - Sohail Bampoe
- Department of Anaesthesia and Perioperative Medicine, University College Hospital, London, UK
| | - David Gilhooly
- Department of Anaesthesia and Perioperative Medicine, University College Hospital, London, UK
| | - Benedict Creagh-Brown
- Surrey Perioperative Anaesthesia Critical care collaborative Research (SPACeR) Group, Intensive Care Unit, Royal Surrey County Hospital NHS Foundation Trust, Guildford, UK
- Department of Clinical and Experimental Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
| | - S Ramani Moonesinghe
- Department of Anaesthesia and Perioperative Medicine, University College Hospital, London, UK
- UCL/UCLH Surgical Outcomes Research Centre, UCL Centre for Perioperative Medicine, Research Department for Targeted Intervention, Division of Surgery and Interventional Science, University College London, London, UK
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Adams JY, Rogers AJ, Schuler A, Marelich GP, Fresco JM, Taylor SL, Riedl AW, Baker JM, Escobar GJ, Liu VX. Association Between Peripheral Blood Oxygen Saturation (SpO 2)/Fraction of Inspired Oxygen (FiO 2) Ratio Time at Risk and Hospital Mortality in Mechanically Ventilated Patients. Perm J 2020; 24:19.113. [PMID: 32069205 DOI: 10.7812/tpp/19.113] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Acute respiratory failure requiring mechanical ventilation is a leading cause of mortality in the intensive care unit. Although single peripheral blood oxygen saturation/fraction of inspired oxygen (SpO2/FiO2) ratios of hypoxemia have been evaluated to risk-stratify patients with acute respiratory distress syndrome, the utility of longitudinal SpO2/FiO2 ratios is unknown. OBJECTIVE To assess time-based SpO2/FiO2 ratios ≤ 150-SpO2/FiO2 time at risk (SF-TAR)-for predicting mortality in mechanically ventilated patients. METHODS Retrospective, observational cohort study of mechanically ventilated patients at 21 community and 2 academic hospitals. Association between the SF-TAR in the first 24 hours of ventilation and mortality was examined using multivariable logistic regression and compared with the worst recorded isolated partial pressure of arterial oxygen/fraction of inspired oxygen (P/F) ratio. RESULTS In 28,758 derivation cohort admissions, every 10% increase in SF-TAR was associated with a 24% increase in adjusted odds of hospital mortality (adjusted odds ratio = 1.24; 95% confidence interval [CI] = 1.23-1.26); a similar association was observed in validation cohorts. Discrimination for mortality modestly improved with SF-TAR (area under the receiver operating characteristic curve [AUROC] = 0.81; 95% CI = 0.81-0.82) vs the worst P/F ratio (AUROC = 0.78; 95% CI = 0.78-0.79) and worst SpO2/FiO2 ratio (AUROC = 0.79; 95% CI = 0.79-0.80). The SF-TAR in the first 6 hours offered comparable discrimination for hospital mortality (AUROC = 0.80; 95% CI = 0.79-0.80) to the 24-hour SF-TAR. CONCLUSION The SF-TAR can identify ventilated patients at increased risk of death, offering modest improvements compared with single SpO2/FiO2 and P/F ratios. This longitudinal, noninvasive, and broadly generalizable tool may have particular utility for early phenotyping and risk stratification using electronic health record data in ventilated patients.
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Affiliation(s)
- Jason Y Adams
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of California, Davis, Sacramento
| | - Angela J Rogers
- Division of Pulmonary and Critical Care Medicine, Stanford University, CA
| | | | | | | | - Sandra L Taylor
- Department of Public Health Sciences, University of California, Davis, Sacramento
| | - Albert W Riedl
- Department of Public Health Sciences, University of California, Davis, Sacramento
| | | | | | - Vincent X Liu
- Division of Research, Kaiser Permanente, Oakland, CA
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6
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Mathis MR, Duggal NM, Likosky DS, Haft JW, Douville NJ, Vaughn MT, Maile MD, Blank RS, Colquhoun DA, Strobel RJ, Janda AM, Zhang M, Kheterpal S, Engoren MC. Intraoperative Mechanical Ventilation and Postoperative Pulmonary Complications after Cardiac Surgery. Anesthesiology 2019; 131:1046-1062. [PMID: 31403976 PMCID: PMC6800803 DOI: 10.1097/aln.0000000000002909] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Compared with historic ventilation strategies, modern lung-protective ventilation includes lower tidal volumes (VT), lower driving pressures, and application of positive end-expiratory pressure (PEEP). The contributions of each component to an overall intraoperative protective ventilation strategy aimed at reducing postoperative pulmonary complications have neither been adequately resolved, nor comprehensively evaluated within an adult cardiac surgical population. The authors hypothesized that a bundled intraoperative protective ventilation strategy was independently associated with decreased odds of pulmonary complications after cardiac surgery. METHODS In this observational cohort study, the authors reviewed nonemergent cardiac surgical procedures using cardiopulmonary bypass at a tertiary care academic medical center from 2006 to 2017. The authors tested associations between bundled or component intraoperative protective ventilation strategies (VT below 8 ml/kg ideal body weight, modified driving pressure [peak inspiratory pressure - PEEP] below 16 cm H2O, and PEEP greater than or equal to 5 cm H2O) and postoperative outcomes, adjusting for previously identified risk factors. The primary outcome was a composite pulmonary complication; secondary outcomes included individual pulmonary complications, postoperative mortality, as well as durations of mechanical ventilation, intensive care unit stay, and hospital stay. RESULTS Among 4,694 cases reviewed, 513 (10.9%) experienced pulmonary complications. After adjustment, an intraoperative lung-protective ventilation bundle was associated with decreased pulmonary complications (adjusted odds ratio, 0.56; 95% CI, 0.42-0.75). Via a sensitivity analysis, modified driving pressure below 16 cm H2O was independently associated with decreased pulmonary complications (adjusted odds ratio, 0.51; 95% CI, 0.39-0.66), but VT below 8 ml/kg and PEEP greater than or equal to 5 cm H2O were not. CONCLUSIONS The authors identified an intraoperative lung-protective ventilation bundle as independently associated with pulmonary complications after cardiac surgery. The findings offer insight into components of protective ventilation associated with adverse outcomes and may serve as targets for future prospective interventional studies investigating the impact of specific protective ventilation strategies on postoperative outcomes after cardiac surgery.
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Affiliation(s)
- Michael R. Mathis
- Department of Anesthesiology, University of Michigan Medical School, Ann Arbor, Michigan
| | - Neal M. Duggal
- Department of Anesthesiology, University of Michigan Medical School, Ann Arbor, Michigan
| | - Donald S. Likosky
- Department of Cardiac Surgery, University of Michigan Medical School, Ann Arbor, Michigan
| | - Jonathan W. Haft
- Department of Cardiac Surgery, University of Michigan Medical School, Ann Arbor, Michigan
| | - Nicholas J. Douville
- Department of Anesthesiology, University of Michigan Medical School, Ann Arbor, Michigan
| | - Michelle T. Vaughn
- Department of Anesthesiology, University of Michigan Medical School, Ann Arbor, Michigan
| | - Michael D. Maile
- Department of Anesthesiology, University of Michigan Medical School, Ann Arbor, Michigan
| | - Randal S. Blank
- Department of Anesthesiology, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Douglas A. Colquhoun
- Department of Anesthesiology, University of Michigan Medical School, Ann Arbor, Michigan
| | - Raymond J. Strobel
- Department of Cardiac Surgery, University of Michigan Medical School, Ann Arbor, Michigan
| | - Allison M. Janda
- Department of Anesthesiology, University of Michigan Medical School, Ann Arbor, Michigan
| | - Min Zhang
- Department of Biostatistics, University of Michigan, Ann Arbor, Michigan
| | - Sachin Kheterpal
- Department of Anesthesiology, University of Michigan Medical School, Ann Arbor, Michigan
| | - Milo C. Engoren
- Department of Anesthesiology, University of Michigan Medical School, Ann Arbor, Michigan
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Sottile PD, Kiser TH, Burnham EL, Ho PM, Allen RR, Vandivier RW, Moss M. An Observational Study of the Efficacy of Cisatracurium Compared with Vecuronium in Patients with or at Risk for Acute Respiratory Distress Syndrome. Am J Respir Crit Care Med 2019; 197:897-904. [PMID: 29241014 DOI: 10.1164/rccm.201706-1132oc] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
RATIONALE The neuromuscular blocking agent cisatracurium may improve mortality for patients with moderate-to-severe acute respiratory distress syndrome (ARDS). Other neuromuscular blocking agents, such as vecuronium, are commonly used and have different mechanisms of action, side effects, cost, and availability in the setting of drug shortages. OBJECTIVES To determine whether cisatracurium is associated with improved outcomes when compared with vecuronium in patients at risk for and with ARDS. METHODS Using a nationally representative database, patients who were admitted to the ICU with a diagnosis of ARDS or an ARDS risk factor, received mechanical ventilation, and were treated with a continuous infusion of neuromuscular blocking agent for at least 2 days within 2 days of hospital admission were included. Patients were stratified into two groups: those who received cisatracurium or vecuronium. Propensity matching was used to balance both patient- and hospital-specific factors. Outcomes included hospital mortality, duration of mechanical ventilation, ICU and hospital duration, and discharge location. MEASUREMENTS AND MAIN RESULTS Propensity matching successfully balanced all covariates for 3,802 patients (1,901 per group). There was no significant difference in mortality (odds ratio, 0.932; P = 0.40) or hospital days (-0.66 d; P = 0.411) between groups. However, patients treated with cisatracurium had fewer ventilator days (-1.01 d; P = 0.005) and ICU days (-0.98 d; P = 0.028) but were equally likely to be discharged home (odds ratio, 1.19; P = 0.056). CONCLUSIONS When compared with vecuronium, cisatracurium was not associated with a difference in mortality but was associated with improvements in other clinically important outcomes. These data suggest that cisatracurium may be the preferred neuromuscular blocking agent for patients at risk for and with ARDS.
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Affiliation(s)
- Peter D Sottile
- 1 Division of Pulmonary Sciences and Critical Care Medicine and
| | - Tyree H Kiser
- 2 Department of Clinical Pharmacy, University of Colorado Skaggs School of Pharmacy, Aurora, Colorado; and
| | - Ellen L Burnham
- 1 Division of Pulmonary Sciences and Critical Care Medicine and
| | - P Michael Ho
- 3 Division of Cardiology, University of Colorado School of Medicine, Aurora, Colorado
| | | | | | - Marc Moss
- 1 Division of Pulmonary Sciences and Critical Care Medicine and
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Alday E, Muñoz M, Planas A, Mata E, Alvarez C. Effects of neuromuscular block reversal with sugammadex versus neostigmine on postoperative respiratory outcomes after major abdominal surgery: a randomized-controlled trial. Can J Anaesth 2019; 66:1328-1337. [PMID: 31165457 DOI: 10.1007/s12630-019-01419-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 04/11/2019] [Accepted: 04/22/2019] [Indexed: 12/17/2022] Open
Abstract
PURPOSE Postoperative pulmonary complications may be better reduced by reversal of neuromuscular block with sugammadex than by reversal with neostigmine because the incidence of residual block after sugammadex application is lower and diaphragm function is less impaired than after neostigmine administration. The aim of the study was to compare the effect of reversal of neuromuscular block with sugammadex or neostigmine on lung function after major abdominal surgery. METHODS One hundred and thirty adults scheduled for major abdominal surgery under combined general and epidural anesthesia were randomly allocated to receive 40 µg of neostigmine or 4 mg·kg-1 of sugammadex to reverse neuromuscular block. Two blinded researchers performed spirometry and lung ultrasound before the surgery, as well as 1 hr and 24 hr postoperatively. Differences in mean changes from baseline were analyzed with repeated measures analysis of variance. Forced vital capacity (FVC) loss one hour after surgery was the main outcome. Secondary outcomes were differences in rate and size of atelectasis one hour and 24 hr after surgery. RESULTS One hundred twenty-six patients were included in the main analysis. In the neostigmine group (n = 64), mean (95% confidence interval [95% CI]) reduction in FVC after one hour was 0.5 (0.4 to 0.6) L. In the sugammadex group (n = 62), the mean (95% CI) reduction in FVC during the first hour was 0.5 (95% CI, 0.3 to 0.6) L. Thirty-nine percent of patients in the neostigmine group and 29% in the sugammadex group had visible atelectasis. Median [interquartile range (IQR)] atelectasis area was 9.7 [4.7-13.1] cm2 and 6.8 [3.6-12.5] cm2, respectively. CONCLUSION We found no differences in pulmonary function in patients reversed with sugammadex or neostigmine in a high-risk population. TRIAL REGISTRATION EudraCT 2014-005156-26; registered 27 May, 2015.
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Affiliation(s)
- Enrique Alday
- Hospital Universitario La Princesa, C/Diego de León 62, 28006, Madrid, Spain.
| | - Manolo Muñoz
- Hospital Universitario La Princesa, C/Diego de León 62, 28006, Madrid, Spain
| | - Antonio Planas
- Hospital Universitario La Princesa, C/Diego de León 62, 28006, Madrid, Spain
| | - Esperanza Mata
- Hospital Universitario La Princesa, C/Diego de León 62, 28006, Madrid, Spain
| | - Carlos Alvarez
- Hospital Universitario La Princesa, C/Diego de León 62, 28006, Madrid, Spain
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9
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Le CD, Lehman E, Aziz F. Development of Postoperative Pneumonia After Endovascular Aortic Aneurysm Repair is Associated with an Increased Length of Intensive Care Unit Stay. Cureus 2019; 11:e4514. [PMID: 31259123 PMCID: PMC6590861 DOI: 10.7759/cureus.4514] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Objective Endovascular aortic aneurysm repair (EVAR) has increasingly replaced open aortic surgery for treatment of abdominal aortic aneurysms (AAA). One of the key advantages of EVAR is the reduced length of intensive care unit (ICU) stay and hospital stay. This study aimed to identify the risk factors associated with increased ICU length of stay (LOS) after EVAR. Methods The American College of Surgeons (ACS-NSQIP) database for the year 2013 was used. All patients who underwent EVAR were divided into two groups: ICU LOS <1 day vs. ≥1 day. Preoperative, intraoperative, and postoperative factors were compared between these two groups utilizing bivariate logistic regression analysis. Multivariable logistic regression analysis was then used to identify factors that were independently associated with ICU LOS ≥1 day after EVAR. Results A total of 2,468 patients (18.7% females, 81.3% males) were identified. Group 1 (ICU LOS <1 day) = 1,535 patients and Group 2 (ICU LOS ≥1 day) = 933 patients. Multivariable analysis identified the following factors to be associated with ICU LOS ≥1 day: ruptured AAA (OR 3.88, CI 1.97-7.65), the American Society of Anesthesiology (ASA) score of 4-5 (OR 2.82, CI 1.50-5.31), operative time ≥180 minutes (OR 2.10, CI 1.51-2.93), bilateral groin cut down (OR 1.37, CI 1.10-1.71), juxta-renal AAA (OR 1.65, CI 1.16-2.35), renal artery stent (OR 2.13, CI 1.42-3.21), aortic stent (OR 2.39, CI 1.60-3.55), emergency surgery (OR 2.56, CI 1.94-3.38), need for blood transfusion (OR 3.11, CI 2.08-4.65) and postoperative pneumonia (OR 7.04, CI 1.95-25.45). Conclusion Variables identified above can be used to predict the cohort of EVAR patients which will likely require ICU for ≥1 day. Development of postoperative pneumonia is associated with a 7.04 times increase in ICU LOS ≥1 day.
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Affiliation(s)
- Cam Dung Le
- Surgery, Penn State College of Medicine, Penn State Milton S. Hershey Medical Center, Hershey, USA
| | - Erik Lehman
- Surgery, Penn State College of Medicine, Penn State Milton S. Hershey Medical Center, Hershey, USA
| | - Faisal Aziz
- Cardiac / Thoracic / Vascular Surgery, Penn State College of Medicine, Penn State Milton S. Hershey Medical Center, Hershey, USA
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10
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Wirtz LM, Kreuer S, Volk T, Hüppe T. Moderne Atemgasanalysen. Med Klin Intensivmed Notfmed 2019; 114:655-660. [DOI: 10.1007/s00063-019-0544-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 11/08/2018] [Accepted: 01/14/2019] [Indexed: 10/27/2022]
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11
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Chugh V, Tyagi A, Arora V, Tyagi A, Das S, Rai G, Sethi AK. Low tidal volume ventilation strategy and organ functions in patients with pre-existing systemic inflammatory response. J Anaesthesiol Clin Pharmacol 2019; 35:460-467. [PMID: 31920228 PMCID: PMC6939561 DOI: 10.4103/joacp.joacp_112_18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Background and Aims Ventilation can induce increase in inflammatory mediators that may contribute to systemic organ dysfunction. Ventilation-induced organ dysfunction is likely to be accentuated if there is a pre-existing systemic inflammatory response. Material and Methods Adult patients suffering from intestinal perforation peritonitis-induced systemic inflammatory response syndrome and scheduled for emergency laparotomy were randomized to receive intraoperative ventilation with 10 ml.kg-1 tidal volume (Group H) versus lower tidal volume of 6 ml.kg-1 along with positive end-expiratory pressure (PEEP) of 10 cmH2O (Group L), (n = 45 each). The primary outcome was postoperative organ dysfunction evaluated using the aggregate Sepsis-related Organ Failure Assessment (SOFA) score. The secondary outcomes were, inflammatory mediators viz. interleukin-6, tumor necrosis factor-α, procalcitonin, and C-reactive protein, assessed prior to (basal) and 1 h after initiation of mechanical ventilation, and 18 h postoperatively. Results The aggregate SOFA score (3[1-3] vs. 1[1-3]); and that on the first postoperative day (2[1-3] vs. 1[0-3]) were higher for group L as compared to group H (P < 0.05). All inflammatory mediators were statistically similar between both groups at all time intervals (P > 0.05). Conclusions Mechanical ventilation with low tidal volume of 6 ml/kg-1 along with PEEP of 10 cmH2O is associated with significantly worse postoperative organ functions as compared to high tidal volume of 10 ml.kg-1 in patients of perforation peritonitis-induced systemic inflammation undergoing emergency laparotomy.
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Affiliation(s)
- Vanya Chugh
- Department of Anaesthesiology and Critical Care, University College of Medical Sciences and GTB Hospital, Dilshad Garden, Shahadra, Delhi, India
| | - Asha Tyagi
- Department of Anaesthesiology and Critical Care, University College of Medical Sciences and GTB Hospital, Dilshad Garden, Shahadra, Delhi, India
| | - Vandna Arora
- Department of Anaesthesiology and Critical Care, University College of Medical Sciences and GTB Hospital, Dilshad Garden, Shahadra, Delhi, India
| | - Abhay Tyagi
- Department of Anaesthesiology and Critical Care, University College of Medical Sciences and GTB Hospital, Dilshad Garden, Shahadra, Delhi, India
| | - Shukla Das
- Department of Microbiology, University College of Medical Sciences and GTB Hospital, Dilshad Garden, Shahadra, Delhi, India
| | - Gargi Rai
- Department of Microbiology, University College of Medical Sciences and GTB Hospital, Dilshad Garden, Shahadra, Delhi, India
| | - Ashok K Sethi
- Department of Anaesthesiology and Critical Care, University College of Medical Sciences and GTB Hospital, Dilshad Garden, Shahadra, Delhi, India
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12
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Low DE, Allum W, De Manzoni G, Ferri L, Immanuel A, Kuppusamy M, Law S, Lindblad M, Maynard N, Neal J, Pramesh CS, Scott M, Mark Smithers B, Addor V, Ljungqvist O. Guidelines for Perioperative Care in Esophagectomy: Enhanced Recovery After Surgery (ERAS®) Society Recommendations. World J Surg 2018; 43:299-330. [DOI: 10.1007/s00268-018-4786-4] [Citation(s) in RCA: 239] [Impact Index Per Article: 39.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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13
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Lundberg SM, Nair B, Vavilala MS, Horibe M, Eisses MJ, Adams T, Liston DE, Low DKW, Newman SF, Kim J, Lee SI. Explainable machine-learning predictions for the prevention of hypoxaemia during surgery. Nat Biomed Eng 2018; 2:749-760. [PMID: 31001455 PMCID: PMC6467492 DOI: 10.1038/s41551-018-0304-0] [Citation(s) in RCA: 633] [Impact Index Per Article: 105.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 08/31/2018] [Indexed: 12/21/2022]
Abstract
Although anaesthesiologists strive to avoid hypoxemia during surgery, reliably predicting future intraoperative hypoxemia is not currently possible. Here, we report the development and testing of a machine-learning-based system that, in real time during general anaesthesia, predicts the risk of hypoxemia and provides explanations of the risk factors. The system, which was trained on minute-by-minute data from the electronic medical records of over fifty thousand surgeries, improved the performance of anaesthesiologists when providing interpretable hypoxemia risks and contributing factors. The explanations for the predictions are broadly consistent with the literature and with prior knowledge from anaesthesiologists. Our results suggest that if anaesthesiologists currently anticipate 15% of hypoxemia events, with this system's assistance they would anticipate 30% of them, a large portion of which may benefit from early intervention because they are associated with modifiable factors. The system can help improve the clinical understanding of hypoxemia risk during anaesthesia care by providing general insights into the exact changes in risk induced by certain patient or procedure characteristics.
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Affiliation(s)
- Scott M Lundberg
- Paul G. Allen School of Computer Science and Engineering, University of Washington, Seattle, WA, USA
| | - Bala Nair
- Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, USA
- Center for Perioperative and Pain initiatives in Quality Safety Outcome, University of Washington, Seattle, WA, USA
- Harborview Injury Prevention and Research Center, University of Washington, Seattle, WA, USA
| | - Monica S Vavilala
- Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, USA
- Center for Perioperative and Pain initiatives in Quality Safety Outcome, University of Washington, Seattle, WA, USA
- Harborview Injury Prevention and Research Center, University of Washington, Seattle, WA, USA
| | - Mayumi Horibe
- Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA
| | - Michael J Eisses
- Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, USA
- Seattle Children's Hospital, Seattle, WA, USA
| | - Trevor Adams
- Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, USA
- Seattle Children's Hospital, Seattle, WA, USA
| | - David E Liston
- Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, USA
- Seattle Children's Hospital, Seattle, WA, USA
| | - Daniel King-Wai Low
- Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, USA
- Seattle Children's Hospital, Seattle, WA, USA
| | - Shu-Fang Newman
- Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, USA
- Center for Perioperative and Pain initiatives in Quality Safety Outcome, University of Washington, Seattle, WA, USA
| | - Jerry Kim
- Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, USA
- Seattle Children's Hospital, Seattle, WA, USA
| | - Su-In Lee
- Paul G. Allen School of Computer Science and Engineering, University of Washington, Seattle, WA, USA.
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14
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Janiaud P, Cristea IA, Ioannidis JPA. Industry-funded versus non-profit-funded critical care research: a meta-epidemiological overview. Intensive Care Med 2018; 44:1613-1627. [PMID: 30151688 PMCID: PMC6182357 DOI: 10.1007/s00134-018-5325-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 07/16/2018] [Indexed: 12/24/2022]
Abstract
Purpose To study the landscape of funding in intensive care research and assess whether the reported outcomes of industry-funded randomized controlled trials (RCTs) are more favorable. Methods We systematically assembled meta-analyses evaluating any type of intervention in the critical care setting and reporting the source of funding for each included RCT. Furthermore, when the intervention was a drug or biologic, we searched also the original RCT articles, when their funding information was unavailable in the meta-analysis. We then qualitatively summarized the sources of funding. For binary outcomes, separate summary odds ratios were calculated for trials with and without industry funding. We then calculated the ratio of odds ratios (RORs) and the summary ROR (sROR) across topics. ROR < 1 implies that the experimental intervention is relatively more favorable in trials with industry funding compared with trials without industry funding. For RCTs included in the ROR analysis, we also examined the conclusions of their abstract. Results Across 67 topics with 568 RCTs, 88 were funded by industry and another 73 had both industry and non-profit funding. Across 33 topics with binary outcomes, the sROR was 1.10 [95% CI (0.96–1.26), I2 = 1%]. Conclusions were not significantly more commonly unfavorable for the experimental arm interventions in industry-funded trials (21.3%) compared with trials without industry funding (18.2%). Conclusion Industry-funded RCTs are the minority in intensive care. We found no evidence that industry-funded trials in intensive care yield more favorable results or are less likely to reach unfavorable conclusions. Electronic supplementary material The online version of this article (10.1007/s00134-018-5325-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Perrine Janiaud
- Meta-Research Innovation Center at Stanford (METRICS), Stanford University, Stanford, CA, 94305, USA
| | - Ioana-Alinea Cristea
- Meta-Research Innovation Center at Stanford (METRICS), Stanford University, Stanford, CA, 94305, USA.,Department of Clinical Psychology and Psychotherapy, Babes-Bolyai University, Cluj-Napoca, Romania
| | - John P A Ioannidis
- Meta-Research Innovation Center at Stanford (METRICS), Stanford University, Stanford, CA, 94305, USA. .,Department of Clinical Psychology and Psychotherapy, Babes-Bolyai University, Cluj-Napoca, Romania. .,Department of Medicine, Stanford University, Stanford, CA, 94305, USA. .,Department of Health Research and Policy, Stanford University, Stanford, CA, 94305, USA. .,Department of Biomedical Data Science, Stanford University, Stanford, CA, 94305, USA. .,Department of Statistics, Stanford University, Stanford, CA, 94305, USA.
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15
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Guay J, Ochroch EA, Kopp S. Intraoperative use of low volume ventilation to decrease postoperative mortality, mechanical ventilation, lengths of stay and lung injury in adults without acute lung injury. Cochrane Database Syst Rev 2018; 7:CD011151. [PMID: 29985541 PMCID: PMC6513630 DOI: 10.1002/14651858.cd011151.pub3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND Since the 2000s, there has been a trend towards decreasing tidal volumes for positive pressure ventilation during surgery. This an update of a review first published in 2015, trying to determine if lower tidal volumes are beneficial or harmful for patients. OBJECTIVES To assess the benefit of intraoperative use of low tidal volume ventilation (less than 10 mL/kg of predicted body weight) compared with high tidal volumes (10 mL/kg or greater) to decrease postoperative complications in adults without acute lung injury. SEARCH METHODS We searched the Cochrane Central Register of Controlled Trials (CENTRAL 2017, Issue 5), MEDLINE (OvidSP) (from 1946 to 19 May 2017), Embase (OvidSP) (from 1974 to 19 May 2017) and six trial registries. We screened the reference lists of all studies retained and of recent meta-analysis related to the topic during data extraction. We also screened conference proceedings of anaesthesiology societies, published in two major anaesthesiology journals. The search was rerun 3 January 2018. SELECTION CRITERIA We included all parallel randomized controlled trials (RCTs) that evaluated the effect of low tidal volumes (defined as less than 10 mL/kg) on any of our selected outcomes in adults undergoing any type of surgery. We did not retain studies with participants requiring one-lung ventilation. DATA COLLECTION AND ANALYSIS Two authors independently assessed the quality of the retained studies with the Cochrane 'Risk of bias' tool. We analysed data with both fixed-effect (I2 statistic less than 25%) or random-effects (I2 statistic greater than 25%) models based on the degree of heterogeneity. When there was an effect, we calculated a number needed to treat for an additional beneficial outcome (NNTB) using the odds ratio. When there was no effect, we calculated the optimum information size. MAIN RESULTS We included seven new RCTs (536 participants) in the update.In total, we included 19 studies in the review (776 participants in the low tidal volume group and 772 in the high volume group). There are four studies awaiting classification and three are ongoing. All included studies were at some risk of bias. Participants were scheduled for abdominal surgery, heart surgery, pulmonary thromboendarterectomy, spinal surgery and knee surgery. Low tidal volumes used in the studies varied from 6 mL/kg to 8.1 mL/kg while high tidal volumes varied from 10 mL/kg to 12 mL/kg.Based on 12 studies including 1207 participants, the effects of low volume ventilation on 0- to 30-day mortality were uncertain (risk ratio (RR) 0.80, 95% confidence interval (CI) 0.42 to 1.53; I2 = 0%; low-quality evidence). Based on seven studies including 778 participants, lower tidal volumes probably reduced postoperative pneumonia (RR 0.45, 95% CI 0.25 to 0.82; I2 = 0%; moderate-quality evidence; NNTB 24, 95% CI 16 to 160), and it probably reduced the need for non-invasive postoperative ventilatory support based on three studies including 506 participants (RR 0.31, 95% CI 0.15 to 0.64; moderate-quality evidence; NNTB 13, 95% CI 11 to 24). Based on 11 studies including 957 participants, low tidal volumes during surgery probably decreased the need for postoperative invasive ventilatory support (RR 0.33, 95% CI 0.14 to 0.77; I2 = 0%; NNTB 39, 95% CI 30 to 166; moderate-quality evidence). Based on five studies including 898 participants, there may be little or no difference in the intensive care unit length of stay (standardized mean difference (SMD) -0.06, 95% CI -0.22 to 0.10; I2 = 33%; low-quality evidence). Based on 14 studies including 1297 participants, low tidal volumes may have reduced hospital length of stay by about 0.8 days (SMD -0.15, 95% CI -0.29 to 0.00; I2 = 27%; low-quality evidence). Based on five studies including 708 participants, the effects of low volume ventilation on barotrauma (pneumothorax) were uncertain (RR 1.77, 95% CI 0.52 to 5.99; I2 = 0%; very low-quality evidence). AUTHORS' CONCLUSIONS We found moderate-quality evidence that low tidal volumes (defined as less than 10 mL/kg) decreases pneumonia and the need for postoperative ventilatory support (invasive and non-invasive). We found no difference in the risk of barotrauma (pneumothorax), but the number of participants included does not allow us to make definitive statement on this. The four studies in 'Studies awaiting classification' may alter the conclusions of the review once assessed.
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Affiliation(s)
- Joanne Guay
- University of SherbrookeDepartment of Anesthesiology, Faculty of MedicineSherbrookeQuebecCanada
- University of Quebec in Abitibi‐TemiscamingueTeaching and Research Unit, Health SciencesRouyn‐NorandaQCCanada
- Faculty of Medicine, Laval UniversityDepartment of Anesthesiology and Critical CareQuebec CityQCCanada
| | - Edward A Ochroch
- University of PennsylvaniaDepartment of Anesthesiology3400 Spruce StreetPhiladelphiaPAUSA19104
| | - Sandra Kopp
- Mayo Clinic College of MedicineDepartment of Anesthesiology and Perioperative Medicine200 1st St SWRochesterMNUSA55901
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16
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Siempos II, Ma KC, Imamura M, Baron RM, Fredenburgh LE, Huh JW, Moon JS, Finkelsztein EJ, Jones DS, Lizardi MT, Schenck EJ, Ryter SW, Nakahira K, Choi AM. RIPK3 mediates pathogenesis of experimental ventilator-induced lung injury. JCI Insight 2018; 3:97102. [PMID: 29720570 DOI: 10.1172/jci.insight.97102] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 04/04/2018] [Indexed: 12/18/2022] Open
Abstract
In patients requiring ventilator support, mechanical ventilation (MV) may induce acute lung injury (ventilator-induced lung injury [VILI]). VILI is associated with substantial morbidity and mortality in mechanically ventilated patients with and without acute respiratory distress syndrome. At the cellular level, VILI induces necrotic cell death. However, the contribution of necroptosis, a programmed form of necrotic cell death regulated by receptor-interacting protein-3 kinase (RIPK3) and mixed-lineage kinase domain-like pseudokinase (MLKL), to the development of VILI remains unexplored. Here, we show that plasma levels of RIPK3, but not MLKL, were higher in patients with MV (i.e., those prone to VILI) than in patients without MV (i.e., those less likely to have VILI) in two large intensive care unit cohorts. In mice, RIPK3 deficiency, but not MLKL deficiency, ameliorated VILI. In both humans and mice, VILI was associated with impaired fatty acid oxidation (FAO), but in mice this association was not observed under conditions of RIPK3 deficiency. These findings suggest that FAO-dependent RIPK3 mediates pathogenesis of acute lung injury.
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Affiliation(s)
- Ilias I Siempos
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, New York-Presbyterian Hospital/Weill Cornell Medical Center, Weill Cornell Medicine (WCM), New York, New York, USA.,First Department of Critical Care Medicine and Pulmonary Services, Evangelismos Hospital, University of Athens Medical School, Athens, Greece
| | - Kevin C Ma
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, New York-Presbyterian Hospital/Weill Cornell Medical Center, Weill Cornell Medicine (WCM), New York, New York, USA
| | - Mitsuru Imamura
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, New York-Presbyterian Hospital/Weill Cornell Medical Center, Weill Cornell Medicine (WCM), New York, New York, USA
| | - Rebecca M Baron
- Division of Pulmonary and Critical Medicine, Brigham and Women's Hospital (BWH), Harvard Medical School, Boston, Massachusetts, USA
| | - Laura E Fredenburgh
- Division of Pulmonary and Critical Medicine, Brigham and Women's Hospital (BWH), Harvard Medical School, Boston, Massachusetts, USA
| | - Jin-Won Huh
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jong-Seok Moon
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, New York-Presbyterian Hospital/Weill Cornell Medical Center, Weill Cornell Medicine (WCM), New York, New York, USA
| | - Eli J Finkelsztein
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, New York-Presbyterian Hospital/Weill Cornell Medical Center, Weill Cornell Medicine (WCM), New York, New York, USA
| | - Daniel S Jones
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, New York-Presbyterian Hospital/Weill Cornell Medical Center, Weill Cornell Medicine (WCM), New York, New York, USA
| | - Michael Torres Lizardi
- Department of Medicine, New York-Presbyterian Hospital/Weill Cornell Medical Center, WCM, New York, New York, USA
| | - Edward J Schenck
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, New York-Presbyterian Hospital/Weill Cornell Medical Center, Weill Cornell Medicine (WCM), New York, New York, USA
| | - Stefan W Ryter
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, New York-Presbyterian Hospital/Weill Cornell Medical Center, Weill Cornell Medicine (WCM), New York, New York, USA
| | - Kiichi Nakahira
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, New York-Presbyterian Hospital/Weill Cornell Medical Center, Weill Cornell Medicine (WCM), New York, New York, USA
| | - Augustine Mk Choi
- Department of Medicine, New York-Presbyterian Hospital/Weill Cornell Medical Center, WCM, New York, New York, USA
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17
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Kim SH, Na S, Lee WK, Choi H, Kim J. Application of intraoperative lung-protective ventilation varies in accordance with the knowledge of anaesthesiologists: a single-Centre questionnaire study and a retrospective observational study. BMC Anesthesiol 2018; 18:33. [PMID: 29606090 PMCID: PMC5879938 DOI: 10.1186/s12871-018-0495-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 03/08/2018] [Indexed: 11/12/2022] Open
Abstract
Background The benefits of lung-protective ventilation (LPV) with a low tidal volume (6 mL/kg of ideal body weight [IBW]), limited plateau pressure (< 28–30 cm H2O), and appropriate positive end-expiratory pressure (PEEP) in patients with acute respiratory distress syndrome have become apparent and it is now widely adopted in intensive care units. Recently evidence for LPV in general anaesthesia has been accumulated, but it is not yet generally applied by anaesthesiologists in the operating room. Methods This study investigated the perception about intraoperative LPV among 82 anaesthesiologists through a questionnaire survey and identified the differences in ventilator settings according to recognition of lung-protective ventilation. Furthermore, we investigated the changes in the trend for using this form of ventilation during general anaesthesia in the past 10 years. Results Anaesthesiologists who had received training in LPV were more knowledgeable about this approach. Anaesthesiologists with knowledge of the concept behind LPV strategies applied a lower tidal volume (median (IQR [range]), 8.2 (8.0–9.2 [7.1–10.3]) vs. 9.2 (9.1–10.1 [7.6–10.1]) mL/kg; p = 0.033) and used PEEP more frequently (69/72 [95.8%] vs. 5/8 [62.5%]; p = 0.012; odds ratio, 13.8 [2.19–86.9]) for laparoscopic surgery than did those without such knowledge. Anaesthesiologists who were able to answer a question related to LPV correctly (respondents who chose ‘height’ to a multiple choice question asking what variables should be considered most important in the initial setting of tidal volume) applied a lower tidal volume in cases of laparoscopic surgery and obese patients. There was an increase in the number of patients receiving LPV (VT < 10 mL/kgIBW and PEEP ≥5 cm H2O) between 2004 and 2014 (0/818 [0.0%] vs. 280/818 [34.2%]; p < 0.001). Conclusions Our study suggests that the knowledge of LPV is directly related to its implementation, and can explain the increase in LPV use in general anaesthesia. Further studies should assess the impact of using intraoperative LPV on clinical outcomes and should determine the efficacy of education on intraoperative LPV implementation. Electronic supplementary material The online version of this article (10.1186/s12871-018-0495-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Seung Hyun Kim
- Department of anesthesiology and Pain Medicine, anaesthesia and Pain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Sungwon Na
- Department of anesthesiology and Pain Medicine, anaesthesia and Pain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Woo Kyung Lee
- Department of anesthesiology and Pain Medicine, anaesthesia and Pain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Hyunwoo Choi
- Department of anesthesiology and Pain Medicine, anaesthesia and Pain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Jeongmin Kim
- Department of anesthesiology and Pain Medicine, anaesthesia and Pain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea.
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18
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Wise R, Bishop D, Joynt G, Rodseth R. Perioperative ARDS and lung injury: for anaesthesia and beyond. SOUTHERN AFRICAN JOURNAL OF ANAESTHESIA AND ANALGESIA 2018. [DOI: 10.1080/22201181.2018.1449463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Robert Wise
- Perioperative Research Unit, Metropolitan Department of Anaesthetics, Critical Care and Pain Management, Pietermaritzburg, University of KwaZulu-Natal, Discipline of Anaesthesiology and Critical Care, Durban, South Africa
| | - David Bishop
- Perioperative Research Unit, Metropolitan Department of Anaesthetics, Critical Care and Pain Management, Pietermaritzburg, University of KwaZulu-Natal, Discipline of Anaesthesiology and Critical Care, Durban, South Africa
| | - Gavin Joynt
- Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Reitze Rodseth
- Perioperative Research Unit, Metropolitan Department of Anaesthetics, Critical Care and Pain Management, Pietermaritzburg, University of KwaZulu-Natal, Discipline of Anaesthesiology and Critical Care, Durban, South Africa
- Outcomes Research Consortium, Cleveland Clinic, Cleveland, OH, USA
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19
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Zhang L, Xiong W, Peng Y, Zhang W, Han R. The effect of an intraoperative, lung-protective ventilation strategy in neurosurgical patients undergoing craniotomy: study protocol for a randomized controlled trial. Trials 2018; 19:85. [PMID: 29394907 PMCID: PMC5797412 DOI: 10.1186/s13063-018-2447-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Accepted: 01/03/2018] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Ventilator-induced lung injury is a major cause of postoperative pulmonary complications (PPCs) in patients undergoing neurosurgery after general anesthesia. However, there is no study on the effect of a lung-protective ventilation strategy in patients undergoing neurosurgery. METHODS This is a single-center, randomized, parallel-group controlled trial which will be carried out at Beijing Tiantan Hospital, Capital Medical University. Three hundred and thirty-four patients undergoing intracranial tumor surgery will be randomly allocated to the control group and the protective-ventilation strategy group. In the control group, tidal volume (VT) will be set at 10-12 ml/kg of predicted body weight but PEEP and recruitment maneuvers will not be used. In the protective group, VT will be set at 6-8 ml/kg of predicted body weight, PEEP at 6-8 cmH2O, and a recruitment maneuver will be used intermittently. The primary outcome is pulmonary complications within 7 days postoperatively. Secondary outcomes include intraoperative brain relaxation, the postoperative complications within 30 days and the cost analysis. DISCUSSION This study aims to determine if the protective, pulmonary-ventilation strategy decreases the incidence of PPCs in patients undergoing neurosurgical anesthesia. If our results are positive, the study will indicate whether the protective, pulmonary-ventilation strategy is efficiently and safely used in neurosurgical patients undergoing the craniotomy. TRIAL REGISTRATION ClinicalTrials.gov, ID: NCT02386683 . Registered on 18 October 2014.
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Affiliation(s)
- Liyong Zhang
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 6, Tiantan Xili, Dongcheng District, Beijing, 100050, People's Republic of China
| | - Wei Xiong
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 6, Tiantan Xili, Dongcheng District, Beijing, 100050, People's Republic of China
| | - Yuming Peng
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 6, Tiantan Xili, Dongcheng District, Beijing, 100050, People's Republic of China
| | - Wei Zhang
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 6, Tiantan Xili, Dongcheng District, Beijing, 100050, People's Republic of China
| | - Ruquan Han
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 6, Tiantan Xili, Dongcheng District, Beijing, 100050, People's Republic of China.
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20
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Cagle LA, Franzi LM, Linderholm AL, Last JA, Adams JY, Harper RW, Kenyon NJ. Effects of positive end-expiratory pressure and recruitment maneuvers in a ventilator-induced injury mouse model. PLoS One 2017; 12:e0187419. [PMID: 29112971 PMCID: PMC5675408 DOI: 10.1371/journal.pone.0187419] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Accepted: 10/19/2017] [Indexed: 12/26/2022] Open
Abstract
Background Positive-pressure mechanical ventilation is an essential therapeutic intervention, yet it causes the clinical syndrome known as ventilator-induced lung injury. Various lung protective mechanical ventilation strategies have attempted to reduce or prevent ventilator-induced lung injury but few modalities have proven effective. A model that isolates the contribution of mechanical ventilation on the development of acute lung injury is needed to better understand biologic mechanisms that lead to ventilator-induced lung injury. Objectives To evaluate the effects of positive end-expiratory pressure and recruitment maneuvers in reducing lung injury in a ventilator-induced lung injury murine model in short- and longer-term ventilation. Methods 5–12 week-old female BALB/c mice (n = 85) were anesthetized, placed on mechanical ventilation for either 2 hrs or 4 hrs with either low tidal volume (8 ml/kg) or high tidal volume (15 ml/kg) with or without positive end-expiratory pressure and recruitment maneuvers. Results Alteration of the alveolar-capillary barrier was noted at 2 hrs of high tidal volume ventilation. Standardized histology scores, influx of bronchoalveolar lavage albumin, proinflammatory cytokines, and absolute neutrophils were significantly higher in the high-tidal volume ventilation group at 4 hours of ventilation. Application of positive end-expiratory pressure resulted in significantly decreased standardized histology scores and bronchoalveolar absolute neutrophil counts at low- and high-tidal volume ventilation, respectively. Recruitment maneuvers were essential to maintain pulmonary compliance at both 2 and 4 hrs of ventilation. Conclusions Signs of ventilator-induced lung injury are evident soon after high tidal volume ventilation (as early as 2 hours) and lung injury worsens with longer-term ventilation (4 hrs). Application of positive end-expiratory pressure and recruitment maneuvers are protective against worsening VILI across all time points. Dynamic compliance can be used guide the frequency of recruitment maneuvers to help ameloriate ventilator-induced lung injury.
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Affiliation(s)
- Laura A. Cagle
- Center for Comparative Respiratory Biology and Medicine, University of California, Davis, Davis, CA, United States of America
- * E-mail:
| | - Lisa M. Franzi
- Center for Comparative Respiratory Biology and Medicine, University of California, Davis, Davis, CA, United States of America
| | - Angela L. Linderholm
- Center for Comparative Respiratory Biology and Medicine, University of California, Davis, Davis, CA, United States of America
| | - Jerold A. Last
- Center for Comparative Respiratory Biology and Medicine, University of California, Davis, Davis, CA, United States of America
| | - Jason Y. Adams
- Division of Pulmonary, Critical Care, and Sleep Medicine, School of Medicine, University of California, Davis, Davis, CA, United States of America
| | - Richart W. Harper
- Center for Comparative Respiratory Biology and Medicine, University of California, Davis, Davis, CA, United States of America
- Division of Pulmonary, Critical Care, and Sleep Medicine, School of Medicine, University of California, Davis, Davis, CA, United States of America
| | - Nicholas J. Kenyon
- Center for Comparative Respiratory Biology and Medicine, University of California, Davis, Davis, CA, United States of America
- Division of Pulmonary, Critical Care, and Sleep Medicine, School of Medicine, University of California, Davis, Davis, CA, United States of America
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Adams JY, Lieng MK, Kuhn BT, Rehm GB, Guo EC, Taylor SL, Delplanque JP, Anderson NR. Development and Validation of a Multi-Algorithm Analytic Platform to Detect Off-Target Mechanical Ventilation. Sci Rep 2017; 7:14980. [PMID: 29101346 PMCID: PMC5670237 DOI: 10.1038/s41598-017-15052-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 10/16/2017] [Indexed: 12/20/2022] Open
Abstract
Healthcare-specific analytic software is needed to process the large volumes of streaming physiologic waveform data increasingly available from life support devices such as mechanical ventilators. Detection of clinically relevant events from these data streams will advance understanding of critical illness, enable real-time clinical decision support, and improve both clinical outcomes and patient experience. We used mechanical ventilation waveform data (VWD) as a use case to address broader issues of data access and analysis including discrimination between true events and waveform artifacts. We developed an open source data acquisition platform to acquire VWD, and a modular, multi-algorithm analytic platform (ventMAP) to enable automated detection of off-target ventilation (OTV) delivery in critically-ill patients. We tested the hypothesis that use of artifact correction logic would improve the specificity of clinical event detection without compromising sensitivity. We showed that ventMAP could accurately detect harmful forms of OTV including excessive tidal volumes and common forms of patient-ventilator asynchrony, and that artifact correction significantly improved the specificity of event detection without decreasing sensitivity. Our multi-disciplinary approach has enabled automated analysis of high-volume streaming patient waveform data for clinical and translational research, and will advance the study and management of critically ill patients requiring mechanical ventilation.
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Affiliation(s)
- Jason Y Adams
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of California Davis, Sacramento, CA, USA.
| | - Monica K Lieng
- School of Medicine, University of California Davis, Sacramento, CA, USA
| | - Brooks T Kuhn
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of California Davis, Sacramento, CA, USA
| | - Greg B Rehm
- Department of Computer Science, University of California Davis, Davis, CA, USA
| | - Edward C Guo
- Department of Computer Science, University of California Davis, Davis, CA, USA
| | - Sandra L Taylor
- Department of Public Health Sciences, Division of Biostatistics, University of California Davis, Davis, CA, USA
| | - Jean-Pierre Delplanque
- Department of Mechanical and Aerospace Engineering, University of California Davis, Davis, CA, USA
| | - Nicholas R Anderson
- Department of Public Health Sciences, Division of Informatics, University of California Davis, Davis, CA, USA
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22
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Bagchi A, Rudolph MI, Ng PY, Timm FP, Long DR, Shaefi S, Ladha K, Vidal Melo MF, Eikermann M. The association of postoperative pulmonary complications in 109,360 patients with pressure-controlled or volume-controlled ventilation. Anaesthesia 2017; 72:1334-1343. [PMID: 28891046 DOI: 10.1111/anae.14039] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/03/2017] [Indexed: 12/20/2022]
Abstract
We thought that the rate of postoperative pulmonary complications might be higher after pressure-controlled ventilation than after volume-controlled ventilation. We analysed peri-operative data recorded for 109,360 adults, whose lungs were mechanically ventilated during surgery at three hospitals in Massachusetts, USA. We used multivariable regression and propensity score matching. Postoperative pulmonary complications were more common after pressure-controlled ventilation, odds ratio (95%CI) 1.29 (1.21-1.37), p < 0.001. Tidal volumes and driving pressures were more varied with pressure-controlled ventilation compared with volume-controlled ventilation: mean (SD) variance from the median 1.61 (1.36) ml.kg-1 vs. 1.23 (1.11) ml.kg-1 , p < 0.001; and 3.91 (3.47) cmH2 O vs. 3.40 (2.69) cmH2 O, p < 0.001. The odds ratio (95%CI) of pulmonary complications after pressure-controlled ventilation compared with volume-controlled ventilation at positive end-expiratory pressures < 5 cmH2 O was 1.40 (1.26-1.55) and 1.20 (1.11-1.31) when ≥ 5 cmH2 O, both p < 0.001, a relative risk ratio of 1.17 (1.03-1.33), p = 0.023. The odds ratio (95%CI) of pulmonary complications after pressure-controlled ventilation compared with volume-controlled ventilation at driving pressures of < 19 cmH2 O was 1.37 (1.27-1.48), p < 0.001, and 1.16 (1.04-1.30) when ≥ 19 cmH2 O, p = 0.011, a relative risk ratio of 1.18 (1.07-1.30), p = 0.016. Our data support volume-controlled ventilation during surgery, particularly for patients more likely to suffer postoperative pulmonary complications.
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Affiliation(s)
- A Bagchi
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - M I Rudolph
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - P Y Ng
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - F P Timm
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - D R Long
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - S Shaefi
- Department of Anesthesia, Critical Care, and Pain Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - K Ladha
- Department of Anesthesia and Pain Medicine, University of Toronto and Toronto General Hospital, Toronto, ON, Canada
| | - M F Vidal Melo
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - M Eikermann
- Department of Anesthesia, Critical Care, and Pain Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA.,Klinik für Anästhesiologie und Intensivmedizin, Universität Duisburg-Essen, Essen, Germany
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Abstract
In this review, we will provide an overview of the current state of the art of perioperative practices for open and laparoscopic oesophagus surgery from the anaesthetist's perspective. Morbidity and mortality after oesophagectomy is still high despite multidisciplinary and enhanced recovery pathways showing promising results. The anaesthetist has an important role in the complex care of the oesophageal cancer patient. Minimizing unnecessary fluid administration, adequate pain management, hypotension, and protective lung ventilation are examples of proven strategies that can improve outcome after this high-risk surgery.
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Affiliation(s)
- Denise P Veelo
- Department of Anaesthesiology, Academic Medical Center, Amsterdam, The Netherlands
| | - Bart F Geerts
- Department of Anaesthesiology, Academic Medical Center, Amsterdam, The Netherlands
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24
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[Does intraoperative lung-protective ventilation reduce postoperative pulmonary complications?]. Anaesthesist 2017; 65:573-9. [PMID: 27392439 DOI: 10.1007/s00101-016-0198-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
BACKGROUND Recent studies show that intraoperative protective ventilation is able to reduce postoperative pulmonary complications (PPC). OBJECTIVES This article provides an overview of the definition and ways to predict PPC. We present different factors that lead to ventilator-induced lung injury and explain the concepts of stress and strain as well as driving pressure. Different strategies of mechanical ventilation to avoid PPC are discussed in light of clinical evidence. MATERIALS AND METHODS The Medline database was used to selectively search for randomized controlled trials dealing with intraoperative mechanical ventilation and outcomes. RESULTS Low tidal volumes (VT) and high levels of positive end-expiratory pressure (PEEP), combined with recruitment maneuvers, are able to prevent PPC. Non-obese patients undergoing open abdominal surgery show better lung function with the use of higher PEEP levels and recruitment maneuvers, however such strategy can lead to hemodynamic impairment, while not reducing the incidence of PPC, hospital length of stay and mortality. An increase in the level of PEEP that results in an increase in driving pressure is associated with a greater risk of PPC. CONCLUSIONS The use of intraoperative VT ranging from 6 to 8 ml/kg based on ideal body weight is strongly recommended. Currently, a recommendation regarding the level of PEEP during surgery is not possible. However, a PEEP increase that leads to a rise in driving pressure should be avoided.
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25
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Jin Z, Suen KC, Ma D. Perioperative "remote" acute lung injury: recent update. J Biomed Res 2017; 31:197-212. [PMID: 28808222 PMCID: PMC5460608 DOI: 10.7555/jbr.31.20160053] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 07/16/2016] [Indexed: 01/21/2023] Open
Abstract
Perioperative acute lung injury (ALI) is a syndrome characterised by hypoxia and chest radiograph changes. It is a serious post-operative complication, associated with considerable mortality and morbidity. In addition to mechanical ventilation, remote organ insult could also trigger systemic responses which induce ALI. Currently, there are limited treatment options available beyond conservative respiratory support. However, increasing understanding of the pathophysiology of ALI and the biochemical pathways involved will aid the development of novel treatments and help to improve patient outcome as well as to reduce cost to the health service. In this review we will discuss the epidemiology of peri-operative ALI; the cellular and molecular mechanisms involved on the pathological process; the clinical considerations in preventing and managing perioperative ALI and the potential future treatment options.
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Affiliation(s)
- Zhaosheng Jin
- Anaesthetics, Pain Medicine and intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea & Westminster Hospital, London SW10 9NH, UK
| | - Ka Chun Suen
- Anaesthetics, Pain Medicine and intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea & Westminster Hospital, London SW10 9NH, UK
| | - Daqing Ma
- Anaesthetics, Pain Medicine and intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea & Westminster Hospital, London SW10 9NH, UK
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26
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Diaz-Fuentes G, Hashmi HRT, Venkatram S. Perioperative Evaluation of Patients with Pulmonary Conditions Undergoing Non-Cardiothoracic Surgery. Health Serv Insights 2016; 9:9-23. [PMID: 27867301 PMCID: PMC5104294 DOI: 10.4137/hsi.s40541] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 10/03/2016] [Accepted: 10/04/2016] [Indexed: 02/07/2023] Open
Abstract
This review describes the perioperative management of patients with suspected or established pulmonary conditions undergoing non-cardiothoracic surgery, with a focus on common pulmonary conditions such as obstructive airway disease, pulmonary hypertension, obstructive sleep apnea, and chronic hypoxic respiratory conditions. Considering that postoperative pulmonary complications are common and given the increasing number of surgical procedures and the size of the aging population, familiarity with current guidelines for preoperative risk assessment and intra- and postoperative patient management is recommended to decrease the morbidity and mortality. In particular, smoking cessation and pulmonary rehabilitation are perioperative strategies for improving patients’ short- and long-term outcomes. Understanding the potential risk for pulmonary complications allows the medical team to appropriately plan the intra- and postoperative care of each patient.
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Affiliation(s)
- Gilda Diaz-Fuentes
- Chief, Division of Pulmonary and Critical Care Medicine, Bronx Lebanon Hospital Center, Bronx, NY, USA.; Associate Professor
| | - Hafiz Rizwan Talib Hashmi
- Fellow, Division of Pulmonary and Critical Care Medicine, Bronx Lebanon Hospital Center, Bronx, NY, USA
| | - Sindhaghatta Venkatram
- Assistant Professor, Clinical Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA.; Attending, Division of Pulmonary and Critical Care Medicine, Bronx Lebanon Hospital Center, Bronx, NY, USA
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Scheiermann J, Klinman DM. Suppressive oligonucleotides inhibit inflammation in a murine model of mechanical ventilator induced lung injury. J Thorac Dis 2016; 8:2434-2443. [PMID: 27746995 DOI: 10.21037/jtd.2016.08.18] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Mechanical ventilation (MV) is commonly used to improve blood oxygenation in critically ill patients and for general anesthesia. Yet the cyclic mechanical stress induced at even moderate ventilation volume settings [tidal volume (Vt) <10 mL/kg] can injure the lungs and induce an inflammatory response. This work explores the effect of treatment with suppressive oligonucleotides (Sup ODN) in a mouse model of ventilator-induced lung injury (VILI). METHODS Balb/cJ mice were mechanically ventilated for 4 h using clinically relevant Vt and a positive end-expiratory pressure of 3 cmH2O under 2-3% isoflurane anesthesia. Lung tissue and bronchoalveolar lavage fluid were collected to assess lung inflammation and lung function was monitored using a FlexiVent®. RESULTS MV induced significant pulmonary inflammation characterized by the influx and activation of CD11c+/F4/80+ macrophages and CD11b+/Ly6G+ polymorphonuclear cells into the lung and bronchoalveolar lavage fluid. The concurrent administration of Sup ODN attenuated pulmonary inflammation as evidenced by reduced cellular influx and production of inflammatory cytokines. Oligonucleotide treatment did not worsen lung function as measured by static compliance or resistance. CONCLUSIONS Treatment with Sup ODN reduces the lung injury induced by MV in mice.
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Affiliation(s)
- Julia Scheiermann
- Cancer and Inflammation Program, Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA
| | - Dennis M Klinman
- Cancer and Inflammation Program, Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA
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28
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Kimura S, Stoicea N, Rosero Britton BR, Shabsigh M, Branstiter A, Stahl DL. Preventing Ventilator-Associated Lung Injury: A Perioperative Perspective. Front Med (Lausanne) 2016; 3:25. [PMID: 27303668 PMCID: PMC4885020 DOI: 10.3389/fmed.2016.00025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 05/17/2016] [Indexed: 01/22/2023] Open
Abstract
Introduction Research into the prevention of ventilator-associated lung injury (VALI) in patients with acute respiratory distress syndrome (ARDS) in the intensive care unit (ICU) has resulted in the development of a number of lung protective strategies, which have become commonplace in the treatment of critically ill patients. An increasing number of studies have applied lung protective ventilation in the operating room to otherwise healthy individuals. We review the history of lung protective strategies in patients with acute respiratory failure and explore their use in patients undergoing mechanical ventilation during general anesthesia. We aim to provide context for a discussion of the benefits and drawbacks of lung protective ventilation, as well as to inform future areas of research. Methods We completed a database search and reviewed articles investigating lung protective ventilation in both the ICU and in patients receiving general anesthesia through May 2015. Results Lung protective ventilation was associated with improved outcomes in patients with acute respiratory failure in the ICU. Clinical evidence is less clear regarding lung protective ventilation for patients undergoing surgery. Conclusion Lung protective ventilation strategies, including low tidal volume ventilation and moderate positive end-expiratory pressure, are well established therapies to minimize lung injury in critically ill patients with and without lung disease, and may provide benefit to patients undergoing general anesthesia.
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Affiliation(s)
- Satoshi Kimura
- Department of Anesthesiology, The Ohio State University Wexner Medical Center , Columbus, OH , USA
| | - Nicoleta Stoicea
- Department of Anesthesiology, The Ohio State University Wexner Medical Center , Columbus, OH , USA
| | | | - Muhammad Shabsigh
- Department of Anesthesiology, The Ohio State University Wexner Medical Center , Columbus, OH , USA
| | - Aly Branstiter
- Department of Anesthesiology, The Ohio State University Wexner Medical Center , Columbus, OH , USA
| | - David L Stahl
- Department of Anesthesiology, The Ohio State University Wexner Medical Center , Columbus, OH , USA
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