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Single lung ventilation

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https://www.readbyqxmd.com/read/27925055/lung-protection-an-intervention-for-tidal-volume-reduction-in-a-teaching-intensive-care-unit
#1
Arturo Briva, Cristina Gaiero
Objective: To determine the effect of feedback and education regarding the use of predicted body weight to adjust tidal volume in a lung-protective mechanical ventilation strategy. Methods: The study was performed from October 2014 to November 2015 (12 months) in a single university polyvalent intensive care unit. We developed a combined intervention (education and feedback), placing particular attention on the importance of adjusting tidal volumes to predicted body weight bedside...
December 1, 2016: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/27919719/impact-of-left-heart-bypass-on-arterial-oxygenation-during-one-lung-ventilation-for-thoracic-aortic-surgery
#2
Kikuko Suga, Yoshiro Kobayashi, Ryoichi Ochiai
OBJECTIVE: The aim of this study was to reveal the mechanism of improved arterial oxygenation by measuring the changes in oxygenation before and after initiation of left heart bypass (LHB) during one-lung ventilation (OLV) for thoracic aortic surgery. DESIGN: Prospective, observational study. SETTING: Single-institution, private hospital. PARTICIPANTS: The study comprised 50 patients who underwent aortic surgery via a left thoracotomy approach with LHB circulatory support...
September 28, 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/27916030/-short-term-outcomes-of-lung-transplant-recipients-using-organs-from-brain-death-donors
#3
W X He, C Jiang, X G Liu, W Huang, C Chen, L Jiang, B Yang, K Wu, Q K Chen, Y Yang, Y M Yu, G N Jiang
Objective: To assess short-term outcomes after lung transplantation with organs procured following brain death. Methods: Between April 2015 and July 2016, all 17 recipients after lung transplantation using organs from brain death donors (DBD) at Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine were enrolled in this study. All patients were male, aging (60±7) years, including 11 chronic obstructive pulmonary disease, 5 idiopathic pulmonary fibrosis, 1 silicosis...
December 1, 2016: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/27892756/use-of-high-non-invasive-respiratory-support-pressures-in-preterm-neonates-a-single-centre-experience
#4
Abdulaziz Binmanee, Salhab El Helou, Sandesh Shivananda, Christoph Fusch, Amit Mukerji
PURPOSE: To describe the incidence, indications and clinical outcomes following high pressures on non-invasive respiratory support (NRS) in preterm neonates. STUDY DESIGN: Retrospective cohort study of all neonates with BW < 1,500 g admitted from July 2012 to June 2014 and placed on high NRS, defined as mean airway pressure ≥ 10 cm H2O for at least 12 continuous hours using NCPAP and/or nasal high frequency ventilation (NIHFV). Clinical and physiological outcomes following high NRS were ascertained...
November 28, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27876355/lung-protective-ventilatory-strategies-in-intubated-preterm-neonates-with-rds
#5
REVIEW
F Reiterer, B Schwaberger, T Freidl, G Schmölzer, G Pichler, B Urlesberger
This article provides a narrative review of lung-protective ventilatory strategies (LPVS) in intubated preterm infants with RDS. A description of strategies is followed by results on short-and long-term respiratory and neurodevelopmental outcomes. Strategies will include patient-triggered or synchronized ventilation, volume targeted ventilation, the technique of intubation, surfactant administration and rapid extubation to NCPAP (INSURE), the open lung concept, strategies of high-frequency ventilation, and permissive hypercapnia...
October 26, 2016: Paediatric Respiratory Reviews
https://www.readbyqxmd.com/read/27872748/hemothorax-following-lung-transplantation-incidence-risk-factors-and-effect-on-morbidity-and-mortality
#6
Aria Hong, Christopher S King, A Whitney Walter Brown, Shahzad Ahmad, Oksana A Shlobin, Sandeep Khandhar, Linda Bogar, Anthony Rongione, Steven D Nathan
BACKGROUND: Hemothorax after lung transplantation may result in increased post-operative morbidity and mortality. Risk factors for developing hemothorax and the outcomes of patients who develop hemothorax have not been well studied. METHODS: A retrospective chart review was performed on all patients who underwent lung transplantation at a single center between March 2009 and July 2014. Comparison was made between patients with and without hemothorax post-transplant...
2016: Multidisciplinary Respiratory Medicine
https://www.readbyqxmd.com/read/27866549/-characteristics-of-lung-function-in-patients-with-asbestosis-of-different-stages
#7
X L Yang, X L Zhu, A Li, X Q Du, Y G Song, Q Ye
Objective: To investigate the characteristics of lung function in the patients with asbestosis of different stages, and analyze the correlations between the pulmonary function values and imaging score of chest X-ray. Methods: A cohort of newly diagnosed 249 asbestosis patients over a period of eight years in a single center were evaluated. Clinical data were collected from clinical charts. Radiographs were reviewed by the experts blinded to clinical data. The asbestosis patients were classified into I to III stages by chest X-ray according to the guideline...
September 20, 2016: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/27863120/numerical-simulation-of-volume-controlled-mechanical-ventilated-respiratory-system-with-two-different-lungs
#8
Yan Shi, Bolun Zhang, Maolin Cai, Xiaohua Douglas Zhang
Mechanical ventilation is a key therapy for patients who can't breathe adequately by themselves, and dynamics of mechanical ventilation system is of great significance for life support of patients. Recently, models of mechanical ventilated respiratory system with one lung are used to simulate respiratory system of patients. However, human has two lungs. When the respiratory characteristics of two lungs are different, single-lung model cannot reflect real respiratory system. In this paper, to illustrate dynamic characteristics of mechanical ventilated respiratory system with two different lungs, we propose a mathematical model of mechanical ventilated respiratory system with two different lungs and conduct experiments to verify the model...
November 9, 2016: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/27861261/lung-recruitment-improves-right-ventricular-performance-after-cardiopulmonary-bypass-a-randomised-controlled-trial
#9
Silvina Longo, Juan Siri, Cecilia Acosta, Alberto Palencia, Arturo Echegaray, Iván Chiotti, Andrés Parisi, Lila Ricci, Marcela Natal, Fernando Suarez-Sipmann, Gerardo Tusman
BACKGROUND: Atelectasis after cardiopulmonary bypass (CPB) can affect right ventricular (RV) performance by increasing its outflow impedance. OBJECTIVE: The aim of this study was to determine whether a lung recruitment manoeuvre improves RV function by re-aerating the lung after CPB. DESIGN: Randomised controlled study. SETTING: Single-institution study, community hospital, Córdoba, Argentina. PATIENTS: Forty anaesthetised patients with New York Heart Association class I or II, preoperative left ventricular ejection fraction at least 50% and Euroscore 6 or less scheduled for cardiac surgery with CPB...
November 16, 2016: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/27834785/physiological-effects-of-a%C3%A2-single-chest-physiotherapy-session-in-mechanically-ventilated-and-extubated-preterm-neonates
#10
Y Mehta, J Shetye, R Nanavati, A Mehta
OBJECTIVE: To assess the changes on various physiological cardio-respiratory parameters with a single chest physiotherapy session in mechanically ventilated and extubated preterm neonates with respiratory distress syndrome. STUDY DESIGN: This is a prospective observational study in neonatal intensive care unit setting. Sixty preterm neonates with respiratory distress syndrome, thirty mechanically ventilated and thirty extubated preterm neonates requiring chest physiotherapy were enrolled in the study...
November 9, 2016: Journal of Neonatal-perinatal Medicine
https://www.readbyqxmd.com/read/27828867/a-simple-blind-placement-of-the-left-sided-double-lumen-tubes
#11
Zhi Jun Zong, Qi Ying Shen, Yao Lu, Yuan Hai Li
One-lung ventilation (OLV) has been commonly provided by using a double-lumen tube (DLT). Previous reports have indicated the high incidence of inappropriate DLT positioning in conventional maneuvers.After obtaining approval from the medical ethics committee of First Affiliated Hospital of Anhui Medical University and written consent from patients, 88 adult patients belonging to American society of anesthesiologists (ASA) physical status grade I or II, and undergoing elective thoracic surgery requiring a left-side DLT for OLV were enrolled in this prospective, single-blind, randomized controlled study...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27828807/predictors-and-outcomes-of-sternotomy-conversion-and-cardiopulmonary-bypass-assistance-in-minimally-invasive-coronary-artery-bypass-grafting
#12
Maria L Rodriguez, Harry R Lapierre, Benjamin Sohmer, Jean-Philippe Ruel, Marc A Ruel
OBJECTIVE: This work's objective was to identify the determinants of conversion of minimally invasive coronary artery bypass grafting to sternotomy, with and without cardiopulmonary bypass assistance, and to compare clinical outcomes in patients who needed conversion. METHODS: This is a prospectively collected data on patients who underwent minimally invasive coronary bypass done by a single surgeon from February 2005 to September 2014. Statistical analyses were expressed as mean values ± standard deviation or proportions...
September 2016: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/27815969/residual-pulmonary-vascular-obstruction-and-recurrence-after-acute-pulmonary-embolism-a-single-center-cohort-study
#13
Benjamin Planquette, Alexis Ferré, Julien Peron, Amandine Vial-Dupuy, Jean Pastre, Gisèle Mourin, Joseph Emmerich, Marie-Anne Collignon, Guy Meyer, Olivier Sanchez
INTRODUCTION: Up to 50% of patients with pulmonary embolism (PE) present lung perfusion defects after six months of anticoagulant treatment, suggesting residual pulmonary vascular obstruction (RPVO). The risk of recurrence in patients with RPVO remains unknown. The present study aims to assess the risk of recurrent venous thromboembolism (VTE) in patients with RPVO after a first symptomatic episode of PE. METHODS: Consecutive patients who survived a first objectively proven acute PE, treated for at least three months with anticoagulants, were included and followed prospectively...
October 29, 2016: Thrombosis Research
https://www.readbyqxmd.com/read/27807817/neutrophil-expression-of-glucocorticoid-induced-leucine-zipper-gilz-anti-inflammatory-protein-is-associated-with-acute-respiratory-distress-syndrome-severity
#14
Marie-Alix Espinasse, David Hajage, Philippe Montravers, Pascale Piednoir, Guillaume Dufour, Florence Tubach, Vanessa Granger, Luc de Chaisemartin, Benoît Noël, Marc Pallardy, Sylvie Chollet-Martin, Armelle Biola-Vidamment
BACKGROUND: Glucocorticoid-induced leucine zipper (GILZ) is a potent anti-inflammatory protein involved in neutrophil apoptosis and the resolution of inflammation. Given the numerous pathophysiologic roles of neutrophils in the acute respiratory distress syndrome (ARDS), we postulated that neutrophil GILZ expression might be induced during ARDS, to modulate the inflammatory process and participate in lung repair. METHODS: This single-center, prospective, observational cohort study took place in the surgical intensive care unit of Bichat Hospital (Paris, France) and involved 17 ARDS patients meeting the Berlin criteria at inclusion, and 14 ventilated controls without ARDS...
December 2016: Annals of Intensive Care
https://www.readbyqxmd.com/read/27794083/the-effect-of-compartmental-asymmetry-on-the-monitoring-of-pulmonary-mechanics-and-lung-volumes
#15
Joseph C Keenan, Gustavo A Cortes-Puentes, Alexander B Adams, David J Dries, John J Marini
BACKGROUND: Esophageal pressure measurement for computation of transpulmonary pressure (Ptp) has begun to be incorporated into clinical use for evaluating forces across the lungs. Gaps exist in our understanding of how esophageal pressure (and therefore Ptp), a value measured at a single site, responds when respiratory system compartments are asymmetrically affected by whole-lung atelectasis or unilateral injury as well as changes in chest wall compliance. We reasoned that Ptp would track with aerated volume changes as estimated by functional residual capacity (FRC) and tidal volume...
November 2016: Respiratory Care
https://www.readbyqxmd.com/read/27791285/signal-to-noise-ratio-t2-and-t2-for-hyperpolarized-helium-3-mri-of-the-human-lung-at-three-magnetic-field-strengths
#16
Peter Komlosi, Talissa A Altes, Kun Qing, Karen E Mooney, G Wilson Miller, Jaime F Mata, Eduard E de Lange, William A Tobias, Gordon D Cates, John P Mugler
PURPOSE: To evaluate T2 , T2*, and signal-to-noise ratio (SNR) for hyperpolarized helium-3 ((3) He) MRI of the human lung at three magnetic field strengths ranging from 0.43T to 1.5T. METHODS: Sixteen healthy volunteers were imaged using a commercial whole body scanner at 0.43T, 0.79T, and 1.5T. Whole-lung T2 values were calculated from a Carr-Purcell-Meiboom-Gill spin-echo-train acquisition. T2* maps and SNR were determined from dual-echo and single-echo gradient-echo images, respectively...
October 28, 2016: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/27783023/single-lung-ventilation-and-oxidative-stress-a-different-perspective-on-a-common-practice
#17
Paul M Heerdt, David F Stowe
PURPOSE OF REVIEW: To summarize what is currently known about the relationship between single-lung ventilation (SLV), oxidative stress, and postoperative disruption of organ function. RECENT FINDINGS: SLV produces progressive alelectasis that is associated with hypoxic pulmonary vasoconstriction and redistribution of blood flow away from the nonventilated lung. This local tissue hypoxia induces the generation of reactive oxygen and reactive nitrogen species, an effect subsequently amplified by lung re-expansion consistent with well described hypoxia/reperfusion responses...
October 25, 2016: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/27763916/hemodynamic-instability-following-airway-spray-cryotherapy
#18
Alessia Pedoto, Dawn P Desiderio, David Amar, Robert J Downey
BACKGROUND: Spray cryotherapy (SCT) of airway lesions is used to effectively palliate respiratory symptoms related to airway obstruction, but significant intraoperative hemodynamic complications have been noted. We reviewed the experience at a single institution using SCT for the treatment of obstructive airway tumors. METHODS: A retrospective review of a single institution experience with intraoperative and postoperative hemodynamic complications associated with SCT was performed...
November 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27763872/regional-gas-transport-in-the-heterogeneous-lung-during-oscillatory-ventilation
#19
Jacob Herrmann, Merryn H Tawhai, David W Kaczka
Regional ventilation in the injured lung is heterogeneous and frequency-dependent, making it difficult to predict how an oscillatory flow waveform at a specified frequency will be distributed throughout the periphery. To predict the impact of mechanical heterogeneity on regional ventilation distribution and gas transport, we developed a computational model of distributed gas flow and CO2 elimination during oscillatory ventilation from 0.1 to 30 Hz. The model consists of a three dimensional airway network of a canine lung, with heterogeneous parenchymal tissues to mimic effects of gravity and injury...
October 7, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27760602/-effects-of-vats-lobectomy-vats-anatomic-segmentectomy-and-open-thoracotomy-on-pulmonary-function-of-patients-with-non-small-cell-lung-cancer
#20
Yanjiao Zhang, Yushun Gao
BACKGROUND: Lung cancer is a malignancy with high morbidity and mortality rates worldwide. Surgery is the preferred treatment for non-small cell lung cancer. This study aims to investigate the effects of video-assisted thoracoscopic surgery (VATS) lobectomy, VATS segmentectomy, and open thoracotomy on pulmonary function in the early postoperative stage and compare the difference among three groups. METHODS: Pulmonary function data of patients were collected from September 2015 to February 2016 in Department of Thoracic Surgical Oncology, Cancer Hospital Chinese Academy of Medical Sciences...
October 20, 2016: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
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