keyword
MENU ▼
Read by QxMD icon Read
search

PEEP volume

keyword
https://www.readbyqxmd.com/read/29324568/effects-of-pressure-support-ventilation-on-ventilator-induced-lung-injury-in-mild-acute-respiratory-distress-syndrome-depend-on-level-of-positive-end-expiratory-pressure
#1
Paulo A F Magalhães, Gisele de A Padilha, Lillian Moraes, Cíntia L Santos, Ligia de A Maia, Cassia L Braga, Maria do Carmo M B Duarte, Lívia B Andrade, Alberto Schanaider, Vera L Capellozzi, Robert Huhle, Marcelo Gama de Abreu, Paolo Pelosi, Patricia R M Rocco, Pedro L Silva
BACKGROUND: Harmful effects of spontaneous breathing have been shown in experimental severe acute respiratory distress syndrome (ARDS). However, in the clinical setting, spontaneous respiration has been indicated only in mild ARDS. To date, no study has compared the effects of spontaneous assisted breathing with those of fully controlled mechanical ventilation at different levels of positive end-expiratory pressure (PEEP) on lung injury in ARDS. OBJECTIVE: To compare the effects of assisted pressure support ventilation (PSV) with pressure-controlled ventilation (PCV) on lung function, histology and biological markers at two different PEEP levels in mild ARDS in rats...
January 10, 2018: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/29323931/esophageal-manometry-and-regional-transpulmonary-pressure-in-lung-injury
#2
Takeshi Yoshida, Marcelo B P Amato, Domenico Luca Grieco, Lu Chen, Cristhiano A S Lima, Rollin Roldan, Caio C A Morais, Susimeire Gomes, Eduardo L V Costa, Paulo F G Cardoso, Emmanuel Charbonney, Jean-Christophe M Richard, Laurent Brochard, Brian P Kavanagh
RATIONALE: Esophageal manometry is the clinically available method to estimate pleural pressure, thus enabling calculation of the transpulmonary pressure (PL). However, many concerns make uncertain in which lung region esophageal manometry reflects local PL. OBJECTIVES: To determine the accuracy of esophageal pressure (Pes) and in which regions esophageal manometry reflects Ppl and PL; to assess whether lung stress in non-dependent regions can be estimated at end-inspiration from PL...
January 11, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29317351/a-new-physiological-model-for-studying-the-effect-of-chest-compression-and-ventilation-during-cardiopulmonary-resuscitation-the-thiel-cadaver
#3
Emmanuel Charbonney, Stéphane Delisle, Dominique Savary, Gilles Bronchti, Marceau Rigollot, Adrien Drouet, Bilal Badat, Paul Ouellet, Patrice Gosselin, Alain Mercat, Laurent Brochard, Jean-Christophe M Richard
BACKGROUND: Studying ventilation and intrathoracic pressure (ITP) induced by chest compressions (CC) during Cardio Pulmonary Resuscitation is challenging and important aspects such as airway closure have been mostly ignored. We hypothesized that Thiel Embalmed Cadavers could constitute an appropriate model. METHODS: We assessed respiratory mechanics and ITP during CC in 11 cadavers, and we compared it to measurements obtained in 9 out-of-hospital cardiac arrest patients and to predicted values from a bench model...
January 6, 2018: Resuscitation
https://www.readbyqxmd.com/read/29297365/regional-physiology-of-ards
#4
REVIEW
Luciano Gattinoni, Tommaso Tonetti, Michael Quintel
The acute respiratory distress (ARDS) lung is usually characterized by a high degree of inhomogeneity. Indeed, the same lung may show a wide spectrum of aeration alterations, ranging from completely gasless regions, up to hyperinflated areas. This inhomogeneity is normally caused by the presence of lung edema and/or anatomical variations, and is deeply influenced by the gravitational forces.For any given airway pressure generated by the ventilator, the pressure acting directly on the lung (i.e., the transpulmonary pressure or lung stress) is determined by two main factors: 1) the ratio between lung elastance and the total elastance of the respiratory system (which has been shown to vary widely in ARDS patients, between 0...
December 28, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/29221302/the-society-for-translational-medicine-clinical-practice-guidelines-for-mechanical-ventilation-management-for-patients-undergoing-lobectomy
#5
REVIEW
Shugeng Gao, Zhongheng Zhang, Alessandro Brunelli, Chang Chen, Chun Chen, Gang Chen, Haiquan Chen, Jin-Shing Chen, Stephen Cassivi, Ying Chai, John B Downs, Wentao Fang, Xiangning Fu, Martínez I Garutti, Jianxing He, Jie He, Jian Hu, Yunchao Huang, Gening Jiang, Hongjing Jiang, Zhongmin Jiang, Danqing Li, Gaofeng Li, Hui Li, Qiang Li, Xiaofei Li, Yin Li, Zhijun Li, Chia-Chuan Liu, Deruo Liu, Lunxu Liu, Yongyi Liu, Haitao Ma, Weimin Mao, Yousheng Mao, Juwei Mou, Calvin Sze Hang Ng, René H Petersen, Guibin Qiao, Gaetano Rocco, Erico Ruffini, Lijie Tan, Qunyou Tan, Tang Tong, Haidong Wang, Qun Wang, Ruwen Wang, Shumin Wang, Deyao Xie, Qi Xue, Tao Xue, Lin Xu, Shidong Xu, Songtao Xu, Tiansheng Yan, Fenglei Yu, Zhentao Yu, Chunfang Zhang, Lanjun Zhang, Tao Zhang, Xun Zhang, Xiaojing Zhao, Xuewei Zhao, Xiuyi Zhi, Qinghua Zhou
Patients undergoing lobectomy are at significantly increased risk of lung injury. One-lung ventilation is the most commonly used technique to maintain ventilation and oxygenation during the operation. It is a challenge to choose an appropriate mechanical ventilation strategy to minimize the lung injury and other adverse clinical outcomes. In order to understand the available evidence, a systematic review was conducted including the following topics: (I) protective ventilation (PV); (II) mode of mechanical ventilation [e...
September 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29210790/management-of-1-lung-ventilation-variation-and-trends-in-clinical-practice-a-report-from-the-multicenter-perioperative-outcomes-group
#6
Douglas A Colquhoun, Bhiken I Naik, Marcel E Durieux, Amy M Shanks, Sachin Kheterpal, S Patrick Bender, Randal S Blank
BACKGROUND: Lung-protective ventilation (LPV) has been demonstrated to improve clinical outcomes in surgical patients. There are very limited data on the current use of LPV for patients undergoing 1-lung ventilation (1LV) despite evidence that 1LV may be a particularly important setting for its use. In this multicenter study, we report trends in ventilation practice for patients undergoing 1LV. METHODS: The Multicenter Perioperative Outcomes Group database was used to identify patients undergoing 1LV...
November 22, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29206488/structural-and-functional-evidence-for-the-scaffolding-effect-of-alveolar-blood-vessels
#7
Barry C Gibney, Willi L Wagner, Alexandra B Ysasi, Janeil M Belle, Akira Tsuda, Maximilian Ackermann, Steven J Mentzer
A contribution of pulmonary blood distension to alveolar opening was first proposed more than 100 years ago. To investigate the contribution of blood distension to lung mechanics, we studied control mice (normal perfusion), mice after exsanguination (absent perfusion) and mice after varying degrees of parenchymal resection (supra-normal perfusion). On inflation, mean tracheal pressures were higher in the bloodless mouse (4.0 ± 2.5 cm H2O); however, there was minimal difference between conditions on deflation (0...
December 5, 2017: Experimental Lung Research
https://www.readbyqxmd.com/read/29201634/innovative-chest-physiotherapy-techniques-the-metaneb%C3%A2-system-in-the-intubated-child-with-extensive-burns
#8
Alexandra Ferguson, Sarah Wright
Introduction: The Metaneb® is a new generation Intrapulmonary Percussive Ventilation device utilised by the physiotherapist to assist airway clearance by providing calibrated oscillations during inspiration up to 3.8Hz. Predominantly used in the adult chronic respiratory patient, with anecdotal evidence in intubated patients, it was also proven to be safe in a paediatric lung model lab study. This case report outlines the first use of the Metaneb® with an intubated child in Australia...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/29194339/risk-factors-for-the-development-of-acute-respiratory-distress-syndrome-following-hemorrhage
#9
Bryce R H Robinson, Mitchell J Cohen, John B Holcomb, Timothy A Pritts, Dina Gomaa, Erin E Fox, Richard D Branson, Rachael A Callcut, Bryan A Cotton, Martin A Schreiber, Karen J Brasel, Jean-Francois Pittet, Kenji Inaba, Jeffery D Kerby, Thomas M Scalea, Charlie E Wade, Eileen M Bulger
BACKGROUND: The Pragmatic Randomized Optimal Platelet and Plasma Ratios (PROPPR) study evaluated the effects of plasma and platelets on hemostasis and mortality after hemorrhage. The pulmonary consequences of resuscitation strategies that mimic whole blood, remain unknown. METHODS: A secondary analysis of the PROPPR study was performed. Injured patients predicted to receive a massive transfusion were randomized to 1:1:1 vs. 1:1:2 plasma-platelet-RBC ratios at 12 Level I North American trauma centers...
November 30, 2017: Shock
https://www.readbyqxmd.com/read/29184987/ventilation-during-extracorporeal-support-why-and-how
#10
REVIEW
A Pesenti, E Carlesso, T Langer, T Mauri
The main target of extracorporeal support is to achieve viable gas exchange, while minimizing the risk of ventilator-induced lung injury, achieved through a decreased mechanical ventilation load on the natural lung. However, during veno-venous extracorporeal membrane oxygenation (ECMO), mechanical ventilation is still necessary in order to prevent lung collapse and/or if extracorporeal blood flow is not sufficient to guarantee adequate gas exchange. In this review, we will summarize the physiology of extracorporeal support and the rationale for continuing mechanical ventilation in this context...
November 28, 2017: Medizinische Klinik, Intensivmedizin und Notfallmedizin
https://www.readbyqxmd.com/read/29168575/cuffed-vs-uncuffed-tracheal-tubes-in-children-a-randomised-controlled-trial-comparing-leak-tidal-volume-and-complications
#11
N A Chambers, A Ramgolam, D Sommerfield, G Zhang, T Ledowski, M Thurm, M Lethbridge, M Hegarty, B S von Ungern-Sternberg
Cuffed tracheal tubes are increasingly used in paediatric anaesthetic practice. This study compared tidal volume and leakage around cuffed and uncuffed tracheal tubes in children who required standardised mechanical ventilation of their lungs in the operating theatre. Children (0-16 years) undergoing elective surgery requiring tracheal intubation were randomly assigned to receive either a cuffed or an uncuffed tracheal tube. Assessments were made at five different time-points: during volume-controlled ventilation 6 ml...
November 23, 2017: Anaesthesia
https://www.readbyqxmd.com/read/29134246/does-high-peep-prevent-alveolar-cycling
#12
REVIEW
M Cressoni, C Chiurazzi, D Chiumello, L Gattinoni
Acute respiratory distress syndrome (ARDS) patients need mechanical ventilation to sustain gas exchange. Animal experiments showed that mechanical ventilation with high volume/plateau pressure and no positive end-expiratory pressure (PEEP) damages healthy lungs, while low tidal volumes and the application of higher PEEP levels are protective. PEEP makes the lung homogeneous, reducing the pressure multiplication at the interface between lung units with different inflation statuses and keeps the lung open through the whole respiratory cycle, avoiding intratidal opening and closing...
November 13, 2017: Medizinische Klinik, Intensivmedizin und Notfallmedizin
https://www.readbyqxmd.com/read/29131002/low-tidal-volume-positive-end-expiratory-pressure-versus-high-tidal-volume-zero-positive-end-expiratory-pressure-and-postoperative-pulmonary-functions-in-robot-assisted-laparoscopic-radical-prostatectomy
#13
Murat Haliloglu, Beliz Bilgili, Mehtap Ozdemir, Tumay Umuroglu, Nurten Bakan
OBJECTIVE: The aim was to compare the effects of low tidal volume (VT) and moderate positive end-expiratory pressure(PEEP) with high tidal volume (VT) and zero end-expiratory pressure(ZEEP), on postoperative pulmonary functions and oxygenation in patients undergoing robot-assisted laparoscopic radical prostatectomy. SUBJECTS AND METHODS: Forty-four (44) patients were randomized into low VT-PEEP and high VT-ZEEP groups. The patients were ventilated with VT of 6 ml/kg and 8 cmH2O PEEP in low VT-PEEP group and VT of 10 ml/kg and 0 cmH2O PEEP in high VT-ZEEP group...
October 31, 2017: Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre
https://www.readbyqxmd.com/read/29109556/management-of-mechanical-ventilation-in-patients-with-hospital-acquired-pneumonia-a-retrospective-observational-study
#14
Radovan Uvizl, Tomas Herkel, Katerina Langova, Petr Jakubec
BACKGROUND: Hospital-acquired pneumonia (HAP) in intensive care patients is a frequent reason for mechanical ventilation (MV). The management of MV and ventilator weaning vary, depending on the type of lung inflammation. This retrospective, observational study screened the data from all patients admitted to the intensive care unit (ICU) of the Department of Anaesthesiology and Intensive Care Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc between 2011 and 2016...
November 2, 2017: Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
https://www.readbyqxmd.com/read/29105056/specific-anesthesia-induced-lung-volume-changes-from-induction-to-emergence-a-pilot-study
#15
P Kostic, A LoMauro, A Larsson, G Hedenstierna, P Frykholm, A Aliverti
BACKGROUND: Studies aimed at maintaining intraoperative lung volume to reduce post-operative pulmonary complications have been inconclusive because they mixed up the effect of general anesthesia and the surgical procedure. Our aims were to study: (1) lung volume during the entire course of anesthesia without the confounding effects of surgical procedures; (2) the combination of three interventions to maintain lung volume; and (3) the emergence phase with focus on the restored activation of the respiratory muscles...
November 3, 2017: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/29089736/early-experience-with-laparoscopic-management-of-nonpalpable-undescended-testes
#16
Okechukwu Hyginus Ekwunife, Victor Ifeanyichukwu Modekwe, Jideofor Okechukwu Ugwu, Chuka Abunike Ugwunne
BACKGROUND: Nonpalpable undescended testes (NPT) constitute 20%-30% of undescended testes, and its management has been a challenge both in diagnosis and treatment. Worldwide, laparoscopy is the current gold standard of management. In Nigeria, the management of NPT has largely been by open surgery with consequent high morbidity. In Nigeria, the trend is changing from a largely open management with its attendant high morbidity, to laparoscopic management which is the current worldwide gold standard of care...
July 2017: Nigerian Journal of Surgery: Official Publication of the Nigerian Surgical Research Society
https://www.readbyqxmd.com/read/29071075/evaluation-by-various-methods-of-the-physiological-mechanism-of-a-high-flow-nasal-cannula-hfnc-in-healthy-volunteers
#17
Miyuki Okuda, Nobuya Tanaka, Kazuyuki Naito, Takao Kumada, Koji Fukuda, Yuto Kato, Yuto Kido, Yutaro Okuda, Ryuji Nohara
INTRODUCTION: Several reports have described the usefulness of a high-flow nasal cannula (HFNC). However, the physiological mechanisms of this system are unclear. In the current study, various methods were used to investigate the physiological mechanisms of an HFNC in healthy volunteers. METHODS: The physiological mechanisms of the constant-flow and constant-pressure models of HFNC were studied in 10 healthy volunteers by the oesophageal balloon method, the electrical impedance method and the forced oscillation technique (FOT)...
2017: BMJ Open Respiratory Research
https://www.readbyqxmd.com/read/29062231/positive-end-expiratory-pressure-attenuates-hemodynamic-effects-induced-by-an-overload-of-inspiratory-muscles-in-patients-with-copd
#18
Flavia Schaper-Magalhães, José Felippe Pinho, Carolina Andrade Bragança Capuruço, Maria Glória Rodrigues-Machado
BACKGROUND: Inspiratory muscle training (IMT) using a Threshold(®) device is commonly used to improve the strength and endurance of inspiratory muscles. However, the effect of IMT, alone or with positive end-expiratory pressure (PEEP), on hemodynamic parameters in patients with chronic obstructive pulmonary disease (COPD) remains unknown. OBJECTIVE: To assess the effects of an overload of inspiratory muscles using IMT fixed at 30% of the maximal inspiratory pressure (MIP), and IMT associated with 5 cmH2O of PEEP (IMT + PEEP), on the echocardiographic parameters in healthy subjects and patients with COPD...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29059882/imaging-of-regional-air-distributions-in-porcine-lungs-using-high-performance-electrical-impedance-tomography-system
#19
G Y Jang, Y B Kim, H Wi, T I Oh, C R Chung, G Y Suh, E J Woo
Electrical impedance tomography (EIT) allows functional imaging of regional lung ventilation for real-time bedside monitoring of mechanically ventilated patients. Images showing time-changes of regional air distributions in the lungs can provide valuable diagnostic information for lung protective mechanical ventilation. This paper reports in vivo porcine imaging experiments of regional lung ventilation using a 16-channel parallel EIT system. Real-time time-difference chest images of 10 animals were reconstructed during mechanical ventilations with a temporal resolution of 50 frame/s...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29045567/individualized-positive-end-expiratory-pressure-in-obese-patients-during-general-anaesthesia-a-randomized-controlled-clinical-trial-using-electrical-impedance-tomography
#20
C Nestler, P Simon, D Petroff, S Hammermüller, D Kamrath, S Wolf, A Dietrich, L M Camilo, A Beda, A R Carvalho, A Giannella-Neto, A W Reske, H Wrigge, Jonathan Thompson
Background: General anaesthesia leads to atelectasis, reduced end-expiratory lung volume (EELV), and diminished arterial oxygenation in obese patients. We hypothesized that a combination of a recruitment manoeuvre (RM) and individualized positive end-expiratory pressure (PEEP) can avoid these effects. Methods: Patients with a BMI ≥35 kg m -2 undergoing elective laparoscopic surgery were randomly allocated to mechanical ventilation with a tidal volume of 8 ml kg -1 predicted body weight and (i) an RM followed by individualized PEEP titrated using electrical impedance tomography (PEEP IND ) or (ii) no RM and PEEP of 5 cm H 2 O (PEEP 5 )...
December 1, 2017: British Journal of Anaesthesia
keyword
keyword
68396
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"