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Using ideal body weight tidal volume on ventilated patient

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https://www.readbyqxmd.com/read/29870299/intraoperative-ventilation-patterns-in-morbidly-obese-patients-undergoing-laparoscopic-bariatric-surgery
#1
Ethan Y Brovman, Colin A Foley, Abra H Shen, Edward E Whang, Richard D Urman
BACKGROUND: The purpose of this study was to examine ventilation patterns, including tidal volume (TV) and positive end-expiratory pressure (PEEP) selection in morbidly obese patients undergoing laparoscopic Roux-en-Y gastric bypass or laparoscopic sleeve gastrectomy. METHODS: Intraoperative ventilation data, including TV and PEEP, were abstracted from the electronic anesthesia record (Metavision) at Brigham and Women's Hospital. Ideal body weight (IBW) was calculated using the Devine formula, and TV per kg IBW was calculated for each patient...
June 5, 2018: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/29691422/pulmonary-effects-of-adjusting-tidal-volume-to-actual-or-ideal-body-weight-in-ventilated-obese-mice
#2
Elise Guivarch, Guillaume Voiriot, Anahita Rouzé, Stéphane Kerbrat, Jeanne Tran Van Nhieu, Philippe Montravers, Bernard Maitre, Armand Mekontso Dessap, Mathieu Desmard, Jorge Boczkowski
Obese patients could be more susceptible to mechanical ventilation (MV)-induced lung injury than non-obese patients due to weight-dependent changes in lung properties. The aim of this study was therefore to evaluate the pulmonary effects of 2 hours low VT MV in a diet-induced obese mice model, with VT calculated on either the actual body weight (VT aw) or the ideal body weight (VT iw) . First, we hypothesized that a MV with VT aw would be associated with altered lung mechanics and an increased lung inflammation...
April 24, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29606090/application-of-intraoperative-lung-protective-ventilation-varies-in-accordance-with-the-knowledge-of-anaesthesiologists-a-single-centre-questionnaire-study-and-a-retrospective-observational-study
#3
Seung Hyun Kim, Sungwon Na, Woo Kyung Lee, Hyunwoo Choi, Jeongmin Kim
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 H2 O), 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...
April 2, 2018: BMC Anesthesiology
https://www.readbyqxmd.com/read/29561278/protective-ventilation-during-anaesthesia-reduces-major-postoperative-complications-after-lung-cancer-surgery-a-double-blind-randomised-controlled-trial
#4
Emmanuel Marret, Raphael Cinotti, Laurence Berard, Vincent Piriou, Jacques Jobard, Benoit Barrucand, Dragos Radu, Samir Jaber, Francis Bonnet
BACKGROUND: Thoracic surgery for lung resection is associated with a high incidence of postoperative pulmonary complications. Controlled ventilation with a large tidal volume has been documented to be a risk factor for postoperative respiratory complications after major abdominal surgery, whereas the use of low tidal volumes and positive end-expiratory pressure (PEEP) has a protective effect. OBJECTIVE: To evaluate the effects of ventilation with low tidal volume and PEEP on major complications after thoracic surgery...
March 19, 2018: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/29531743/using-domiciliary-non-invasive-ventilator-data-downloads-to-inform-clinical-decision-making-to-optimise-ventilation-delivery-and-patient-compliance
#5
Stephanie K Mansell, Steven Cutts, Isobel Hackney, Martin J Wood, Kevin Hawksworth, Dean D Creer, Cherry Kilbride, Swapna Mandal
Introduction: Ventilation parameter data from patients receiving home mechanical ventilation can be collected via secure data cards and modem technology. This can then be reviewed by clinicians and ventilator prescriptions adjusted. Typically available measures include tidal volume (VT ), leak, respiratory rate, minute ventilation, patient triggered breaths, achieved pressures and patient compliance. This study aimed to assess the potential impact of ventilator data downloads on management of patients requiring home non-invasive ventilation (NIV)...
2018: BMJ Open Respiratory Research
https://www.readbyqxmd.com/read/29325586/high-frequency-percussive-ventilation-increases-alveolar-recruitment-in-early-acute-respiratory-distress-syndrome-an-experimental-physiological-and-ct-scan-study
#6
Thomas Godet, Matthieu Jabaudon, Raïko Blondonnet, Aymeric Tremblay, Jules Audard, Benjamin Rieu, Bruno Pereira, Jean-Marc Garcier, Emmanuel Futier, Jean-Michel Constantin
BACKGROUND: High frequency percussive ventilation (HFPV) combines diffusive (high frequency mini-bursts) and convective ventilation patterns. Benefits include enhanced oxygenation and hemodynamics, and alveolar recruitment, while providing hypothetic lung-protective ventilation. No study has investigated HFPV-induced changes in lung aeration in patients with early acute respiratory distress syndrome (ARDS). METHODS: Eight patients with early non-focal ARDS were enrolled and five swine with early non-focal ARDS were studied in prospective computed tomography (CT) scan and animal studies, in a university-hospital tertiary ICU and an animal laboratory...
January 11, 2018: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28765493/variability-of-tidal-volume-in-patient-triggered-mechanical-ventilation-in-ards
#7
Sophie Perinel-Ragey, Loredana Baboi, Claude Guérin
BACKGROUND: Limiting tidal volume (VT ) in patients with ARDS may not be achieved once patient-triggered breaths occur. Furthermore, ICU ventilators offer numerous patient-triggered modes that work differently across brands. We systematically investigated, using a bench model, the effect of patient-triggered modes on the size and variability of VT at different breathing frequencies (f), patient effort, and ARDS severity. METHODS: We used a V500 Infinity ICU ventilator connected to an ASL 5000 lung model whose compliance was mimicking mild, moderate, and severe ARDS...
November 2017: Respiratory Care
https://www.readbyqxmd.com/read/28592276/different-strategies-for-mechanical-ventilation-during-cardiopulmonary-bypass-cpbvent-2014-study-protocol-for-a-randomized-controlled-trial
#8
Elena Bignami, Marcello Guarnieri, Francesco Saglietti, Enivarco Massimo Maglioni, Sabino Scolletta, Stefano Romagnoli, Stefano De Paulis, Gianluca Paternoster, Cinzia Trumello, Roberta Meroni, Antonio Scognamiglio, Alessandro Maria Budillon, Vincenzo Pota, Alberto Zangrillo, Ottavio Alfieri
BACKGROUND: There is no consensus on which lung-protective strategies should be used in cardiac surgery patients. Sparse and small randomized clinical and animal trials suggest that maintaining mechanical ventilation during cardiopulmonary bypass is protective on the lungs. Unfortunately, such evidence is weak as it comes from surrogate and minor clinical endpoints mainly limited to elective coronary surgery. According to the available data in the academic literature, an unquestionable standardized strategy of lung protection during cardiopulmonary bypass cannot be recommended...
June 7, 2017: Trials
https://www.readbyqxmd.com/read/28528537/intraoperative-mechanical-ventilation-state-of-the-art
#9
Lorenzo Ball, Federico Costantino, Giulia Orefice, Karthikka Chandrapatham, Paolo Pelosi
Mechanical ventilation is a cornerstone of the intraoperative management of the surgical patient and is still mandatory in several surgical procedures. In the last decades, research focused on preventing postoperative pulmonary complications (PPCs), both improving risk stratification through the use of predictive scores and protecting the lung adopting so-called protective ventilation strategies. The aim of this review was to give an up-to-date overview of the currently suggested intraoperative ventilation strategies, along with their pathophysiologic rationale, with a focus on challenging conditions, such as obesity, one-lung ventilation and cardiopulmonary bypass...
October 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/27811485/mask-ventilation-during-induction-of-general-anesthesia-influences-of-obstructive-sleep-apnea
#10
Shin Sato, Makoto Hasegawa, Megumi Okuyama, Junko Okazaki, Yuji Kitamura, Yumi Sato, Teruhiko Ishikawa, Yasunori Sato, Shiroh Isono
BACKGROUND: Depending on upper airway patency during anesthesia induction, tidal volume achieved by mask ventilation may vary. In 80 adult patients undergoing general anesthesia, the authors tested a hypothesis that tidal volume during mask ventilation is smaller in patients with sleep-disordered breathing priorly defined as apnea hypopnea index greater than 5 per hour. METHODS: One-hand mask ventilation with a constant ventilator setting (pressure-controlled ventilation) was started 20 s after injection of rocuronium and maintained for 1 min during anesthesia induction...
January 2017: Anesthesiology
https://www.readbyqxmd.com/read/27576283/-acute-respiratory-distress-syndrome
#11
REVIEW
Elisa Estenssoro, Arnaldo Dubin
Acute respiratory distress syndrome (ARDS) is an acute respiratory failure produced by an inflammatory edema secondary to increased lung capillary permeability. This causes alveolar flooding and subsequently deep hypoxemia, with intrapulmonary shunt as its most important underlying mechanism. Characteristically, this alteration is unresponsive to high FIO2 and only reverses with end-expiratory positive pressure (PEEP). Pulmonary infiltrates on CXR and CT are the hallmark, together with decreased lung compliance...
2016: Medicina
https://www.readbyqxmd.com/read/27545828/airway-driving-pressure-and-lung-stress-in-ards-patients
#12
Davide Chiumello, Eleonora Carlesso, Matteo Brioni, Massimo Cressoni
BACKGROUND: Lung-protective ventilation strategy suggests the use of low tidal volume, depending on ideal body weight, and adequate levels of PEEP. However, reducing tidal volume according to ideal body weight does not always prevent overstress and overstrain. On the contrary, titrating mechanical ventilation on airway driving pressure, computed as airway pressure changes from PEEP to end-inspiratory plateau pressure, equivalent to the ratio between the tidal volume and compliance of respiratory system, should better reflect lung injury...
August 22, 2016: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/27392439/-does-intraoperative-lung-protective-ventilation-reduce-postoperative-pulmonary-complications
#13
REVIEW
T Kiss, T Bluth, M Gama de Abreu
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...
August 2016: Der Anaesthesist
https://www.readbyqxmd.com/read/27230998/increasing-compliance-with-low-tidal-volume-ventilation-in-the-icu-with-two-nudge-based-interventions-evaluation-through-intervention-time-series-analyses
#14
Christopher P Bourdeaux, Matthew Jc Thomas, Timothy H Gould, Gaurav Malhotra, Andreas Jarvstad, Timothy Jones, Iain D Gilchrist
OBJECTIVES: Low tidal volume (TVe) ventilation improves outcomes for ventilated patients, and the majority of clinicians state they implement it. Unfortunately, most patients never receive low TVes. 'Nudges' influence decision-making with subtle cognitive mechanisms and are effective in many contexts. There have been few studies examining their impact on clinical decision-making. We investigated the impact of 2 interventions designed using principles from behavioural science on the deployment of low TVe ventilation in the intensive care unit (ICU)...
May 26, 2016: BMJ Open
https://www.readbyqxmd.com/read/27192849/-the-cognitive-status-dynamic-of-cardiosurgical-patients-and-the-predictors-of-its-disturbance
#15
T V Klypa, I O Antonov, A S Vavakin
UNLABELLED: AIM OF RESEARCH: To estimate the cognitive status dynamics ofpatients during the early postoperative period after cardiac interventions and to reveal predictors of cognitive functions deterioration at this category of patients. MATERIALS AND METHODS: 118 cardiac patients were tested of neurocognitive functions one days before operation, and then for the 2-3rd days after operation by means of the MMSE test, the FAB test, Shulte's test, a questionnaire of a depression of CES-D, the BATTERY OF FRONTAL DYSFUNCTION TEST...
January 2016: Anesteziologiia i Reanimatologiia
https://www.readbyqxmd.com/read/27011307/management-of-one-lung-ventilation-impact-of-tidal-volume-on-complications-after-thoracic-surgery
#16
Randal S Blank, Douglas A Colquhoun, Marcel E Durieux, Benjamin D Kozower, Timothy L McMurry, S Patrick Bender, Bhiken I Naik
BACKGROUND: The use of lung-protective ventilation (LPV) strategies may minimize iatrogenic lung injury in surgical patients. However, the identification of an ideal LPV strategy, particularly during one-lung ventilation (OLV), remains elusive. This study examines the role of ventilator management during OLV and its impact on clinical outcomes. METHODS: Data were retrospectively collected from the hospital electronic medical record and the Society of Thoracic Surgery database for subjects undergoing thoracic surgery with OLV between 2012 and 2014...
June 2016: Anesthesiology
https://www.readbyqxmd.com/read/26904233/new-puzzles-for-the-use-of-non-invasive-ventilation-for-immunosuppressed-patients
#17
Carmen Sílvia Valente Barbas, Ary Serpa Neto
On October 27, 2015, Lemile and colleagues published an article in JAMA entitled "Effect of Noninvasive Ventilation vs. Oxygen Therapy on Mortality among Immunocompromised Patients with Acute Respiratory Failure: A Randomized Clinical Trial", which investigated the effects of non-invasive ventilation (NIV) in 28-day mortality of 374 critically ill immunosuppressed patients. The authors found that among immunosuppressed patients admitted to the intensive care unit (ICU) with hypoxemic acute respiratory failure, early NIV compared with oxygen therapy alone did not reduce 28-day mortality...
January 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/25907273/perioperative-lung-protective-ventilation-in-obese-patients
#18
REVIEW
Ana Fernandez-Bustamante, Soshi Hashimoto, Ary Serpa Neto, Pierre Moine, Marcos F Vidal Melo, John E Repine
The perioperative use and relevance of protective ventilation in surgical patients is being increasingly recognized. Obesity poses particular challenges to adequate mechanical ventilation in addition to surgical constraints, primarily by restricted lung mechanics due to excessive adiposity, frequent respiratory comorbidities (i.e. sleep apnea, asthma), and concerns of postoperative respiratory depression and other pulmonary complications. The number of surgical patients with obesity is increasing, and facing these challenges is common in the operating rooms and critical care units worldwide...
May 6, 2015: BMC Anesthesiology
https://www.readbyqxmd.com/read/25695069/managing-hypercapnia-in-patients-with-severe-ards-and-low-respiratory-system-compliance-the-role-of-esophageal-pressure-monitoring-a-case-cohort-study
#19
Arie Soroksky, Julia Kheifets, Zehava Girsh Solomonovich, Emad Tayem, Balmor Gingy Ronen, Boris Rozhavsky
PURPOSE: Patients with severe acute respiratory distress syndrome (ARDS) and hypercapnia present a formidable treatment challenge. We examined the use of esophageal balloon for assessment of transpulmonary pressures to guide mechanical ventilation for successful management of severe hypercapnia. MATERIALS AND METHODS: Patients with severe ARDS and hypercapnia were studied. Esophageal balloon was inserted and mechanical ventilation was guided by assessment of transpulmonary pressures...
2015: BioMed Research International
https://www.readbyqxmd.com/read/25635004/predicting-the-response-of-the-injured-lung-to-the-mechanical-breath-profile
#20
COMPARATIVE STUDY
Bradford J Smith, Lennart K A Lundblad, Michaela Kollisch-Singule, Joshua Satalin, Gary Nieman, Nader Habashi, Jason H T Bates
Mechanical ventilation is a crucial component of the supportive care provided to patients with acute respiratory distress syndrome. Current practice stipulates the use of a low tidal volume (VT) of 6 ml/kg ideal body weight, the presumptive notion being that this limits overdistension of the tissues and thus reduces volutrauma. We have recently found, however, that airway pressure release ventilation (APRV) is efficacious at preventing ventilator-induced lung injury, yet APRV has a very different mechanical breath profile compared with conventional low-VT ventilation...
April 1, 2015: Journal of Applied Physiology
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