Read by QxMD icon Read

recruitment maneuvers ards

David Ae Imber, Massimiliano Pirrone, Changsheng Zhang, Daniel F Fisher, Robert M Kacmarek, Lorenzo Berra
With a rising incidence of obesity in the United States, anesthesiologists are faced with a larger volume of obese patients coming to the operating room as well as obese patients with ever-larger body mass indices (BMIs). While there are many cardiovascular and endocrine issues that clinicians must take into account when caring for the obese patient, one of the most prominent concerns of the anesthesiologist in the perioperative setting should be the status of the lung. Because the pathophysiology of reduced lung volumes in the obese patient differs from that of the ARDS patient, the best approach to keeping the obese patient's lung open and adequately ventilated during mechanical ventilation is unique...
September 13, 2016: Respiratory Care
Jia-Qiong Li, Hong-Yang Xu, Mao-Qin Li, Jing-Yu Chen
In the present study, the effect of setting high airway pressure release ventilation (APRV) pressure guided by an expiratory inflection point of pressure-volume (PV) curve following lung recruitment maneuver (RM) on oxygen delivery (DO2) in canine models of severe acute respiratory distress syndrome (ARDS) was examined. Canine models of severe ARDS were established by intravenous injection of oleic acid. After injection of sedative muscle relaxants, a PV curve plotted using the super-syringe technique, and the pressure at lower inflection point (LIP) at the inhale branch and the pressure at the point of maximum curvature (PMC) at the exhale branch were measured...
September 2016: Experimental and Therapeutic Medicine
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
Chun Pan, Lu Chen, Yun-Hang Zhang, Wei Liu, Rosario Urbino, V Marco Ranieri, Hai-Bo Qiu, Yi Yang
BACKGROUND: Stress index at post-recruitment maneuvers could be a method of positive end-expiratory pressure (PEEP) titration in acute respiratory distress syndrome (ARDS) patients. However, airway pressure (Paw) stress index may not reflect lung mechanics in the patients with high chest wall elastance. This study was to evaluate the Pawstress index on lung mechanics and the correlation between Pawstress index and transpulmonary pressure (PL) stress index in acute respiratory failure (ARF) patients...
July 20, 2016: Chinese Medical Journal
Pedro Leme Silva, Paolo Pelosi, Patricia Rieken Macêdo Rocco
No abstract text is available yet for this article.
June 2016: Revista Brasileira de Terapia Intensiva
Sara Verscheure, Paul B Massion, Franck Verschuren, Pierre Damas, Sheldon Magder
Dead space is an important component of ventilation-perfusion abnormalities. Measurement of dead space has diagnostic, prognostic and therapeutic applications. In the intensive care unit (ICU) dead space measurement can be used to guide therapy for patients with acute respiratory distress syndrome (ARDS); in the emergency department it can guide thrombolytic therapy for pulmonary embolism; in peri-operative patients it can indicate the success of recruitment maneuvers. A newly available technique called volumetric capnography (Vcap) allows measurement of physiological and alveolar dead space on a regular basis at the bedside...
June 23, 2016: Critical Care: the Official Journal of the Critical Care Forum
Hu Yalan, Guo Changying, Guo Lin, Zheng Hua, Zhang Mian
OBJECTIVE: To compare the individual effects of three recruitment maneuvers (RM) in children with congenital heart disease complicated by postoperation acute respiratory distress syndrome (ARDS). METHODS: A prospective single-blind randomized controlled trial was conducted. Thirty-two children with congenital heart disease complicated with ARDS after open-heart surgery undergoing mechanical ventilation were randomized into three groups, to whom three different RM was respectively performed, namely sustained inflation (SI), progressively increased positive end expiratory pressure (IP) and pressure control ventilation (PCV)...
December 2015: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
G Li Bassi, C Chiurazzi, E Aguilera Xiol, D Marti, C Talitho, R Amaro, C Travierso, M Carbonara, M Rigol, O Comino-Trinidad, A Torres
No abstract text is available yet for this article.
December 2015: Intensive Care Medicine Experimental
Long Yun, Huai-Wu He, Knut Möller, Inéz Frerichs, Dawei Liu, Zhanqi Zhao
We hypothesized that not all patients with appreciably recruited lung tissue during a recruitment maneuver (RM) show significant improvement of oxygenation. In the present study, we combined electrical impedance tomography (EIT) with oxygenation measurements to examine the discrepancies of lung ventilation and perfusion versus oxygenation after RM.A 2-minute RM (20 cm H2O positive end-expiratory pressure [PEEP] + 20 cm H2O pressure control) was prospectively conducted in 20 acute respiratory distress syndrome patients from January 2014 to December 2014...
May 2016: Medicine (Baltimore)
Vasilios Koulouras, Georgios Papathanakos, Athanasios Papathanasiou, Georgios Nakos
Acute respiratory distress syndrome (ARDS) is a syndrome with heterogeneous underlying pathological processes. It represents a common clinical problem in intensive care unit patients and it is characterized by high mortality. The mainstay of treatment for ARDS is lung protective ventilation with low tidal volumes and positive end-expiratory pressure sufficient for alveolar recruitment. Prone positioning is a supplementary strategy available in managing patients with ARDS. It was first described 40 years ago and it proves to be in alignment with two major ARDS pathophysiological lung models; the "sponge lung" - and the "shape matching" -model...
May 4, 2016: World Journal of Critical Care Medicine
J Retamal, J B Borges, A Bruhn, R Feinstein, G Hedenstierna, F Suarez-Sipmann, A Larsson
BACKGROUND: We recently reported that a high respiratory rate was associated with less inflammation than a low respiratory rate, but caused more pulmonary edema in a model of ARDS when an ARDSNet ventilatory strategy was used. We hypothesized that an open lung approach (OLA) strategy would neutralize the independent effects of respiratory rate on lung inflammation and edema. This hypothesis was tested in an ARDS model using two clinically relevant respiratory rates during OLA strategy...
September 2016: Acta Anaesthesiologica Scandinavica
Rujipat Samransamruajkit, Chavisa Rassameehirun, Khemmachart Pongsanon, Sumalee Huntrakul, Jitladda Deerojanawong, Suchada Sritippayawan, Nuanchan Prapphal
PURPOSE: To determine the efficacy of lung volume recruitment maneuver (LVRM) with high frequency oscillatory ventilation (HFOV) on oxygenation, hemodynamic alteration, and clinical outcomes when compared to conventional mechanical ventilation (CV) in children with severe acute respiratory distress syndrome (ARDS). MATERIALS: We performed a randomized controlled trial and enrolled pediatric patients who were diagnosed to have severe ARDS upon pediatric intensive care unit (PICU) admission...
February 2016: Indian Journal of Critical Care Medicine
Marianna Laviola, Jakub Rafl, Martin Rozanek, Petr Kudrna, Karel Roubik
UNLABELLED: Purpose/Aim : High-frequency oscillatory ventilation (HFOV) is a method of ventilation that theoretically achieves the goals of lung protective ventilation in acute respiratory distress syndrome (ARDS) patients. It is characterized by a rapid delivery of small tidal volumes at high frequencies oscillating around a continuous distending pressure (CDP). Optimization of CDP is not an easy task and it is titrated empirically in the clinical practice. The aim of this study is to investigate whether the level of CDP consistently affects the shape of the partial pressure of oxygen (PaO2) response to stepwise changes in CDP during HFOV of healthy and ARDS-induced pigs...
2016: Experimental Lung Research
Segolene Mrozek, Matthieu Jabaudon, Samir Jaber, Catherine Paugam-Burtz, Jean-Yves Lefrant, Jean-Jacques Rouby, Karim Asehnoune, Bernard Allaouchiche, Olivier Baldesi, Marc Leone, Qin Lu, Jean-Etienne Bazin, Laurence Roszyk, Vincent Sapin, Emmanuel Futier, Bruno Pereira, Jean-Michel Constantin
BACKGROUND: During acute respiratory distress syndrome (ARDS), computed tomography (CT) can reveal two distinct lung imaging patterns, focal or non-focal, with different responses to PEEP, recruitment maneuvers and prone position. Nevertheless, their association with plasma biomarkers and their distinct functional/pathobiological mechanisms are unknown. The objective of this study was to characterize focal and non-focal patterns of lung CT-based imaging with plasma markers of lung injury...
March 23, 2016: Chest
Changsong Wang, Xiaoyang Wang, Chunjie Chi, Libo Guo, Lei Guo, Nana Zhao, Weiwei Wang, Xin Pi, Bo Sun, Ailing Lian, Jinghui Shi, Enyou Li
To identify the best lung ventilation strategy for acute respiratory distress syndrome (ARDS), we performed a network meta-analysis. The Cochrane Central Register of Controlled Trials, EMBASE, MEDLINE, CINAHL, and the Web of Science were searched, and 36 eligible articles were included. Compared with higher tidal volumes with FiO2-guided lower positive end-expiratory pressure [PEEP], the hazard ratios (HRs) for mortality were 0.624 (95% confidence interval (CI) 0.419-0.98) for lower tidal volumes with FiO2-guided lower PEEP and prone positioning and 0...
2016: Scientific Reports
Suman Yadam, Eric Bihler, Marvin Balaan
Acute respiratory distress syndrome (ARDS) is a serious inflammatory disorder with high mortality. Its main pathologic mechanism seems to result from increased alveolar permeability. Its definition has also changed since first being described according to the Berlin definition, which now classifies ARDS on a severity scale based on PaO2 (partial pressure of oxygen, arterial)/FIO2 (fraction of inspired oxygen) ratio. The cornerstone of therapy was found to be a low tidal volume strategy featuring volumes of 6 to 8 mL per kg of ideal body weight that has been shown to have decreased mortality as proven by the ARDSnet trials...
April 2016: Critical Care Nursing Quarterly
S A El-Dash, J B Borges, E L V Costa, M R Tucci, O T Ranzani, M P Caramez, C R R Carvalho, M B P Amato
BACKGROUND: There is debate whether pressure transmission within the lungs and alveolar collapse follow a hydrostatic pattern or the compression exerted by the weight of the heart and the diaphragm causes collapse localized in the areas adjacent to these structures. The second hypothesis proposes the existence of a cephalocaudal gradient in alveolar collapse. We aimed to define whether or not lung density and collapse follow a 'liquid-like' pattern with homogeneous isogravitational layers along the cephalocaudal axis in acute respiratory distress syndrome lungs...
July 2016: Acta Anaesthesiologica Scandinavica
Regis Goulart Rosa, William Rutzen, Laura Madeira, Aline Maria Ascoli, Felippe Leopoldo Dexheimer Neto, Juçara Gasparetto Maccari, Roselaine Pinheiro de Oliveira, Cassiano Teixeira
Thoracic electrical impedance tomography is a real-time, noninvasive monitoring tool of the regional pulmonary ventilation distribution. Its bedside use in patients with acute respiratory distress syndrome has the potential to aid in alveolar recruitment maneuvers, which are often necessary in cases of refractory hypoxemia. In this case report, we describe the monitoring results and interpretation of thoracic electrical impedance tomography used during alveolar recruitment maneuvers in a patient with acute respiratory distress syndrome, with transient application of high alveolar pressures and optimal positive end-expiratory pressure titration...
October 2015: Revista Brasileira de Terapia Intensiva
Robert M Kacmarek, Jesús Villar, Demet Sulemanji, Raquel Montiel, Carlos Ferrando, Jesús Blanco, Younsuck Koh, Juan Alfonso Soler, Domingo Martínez, Marianela Hernández, Mauro Tucci, Joao Batista Borges, Santiago Lubillo, Arnoldo Santos, Juan B Araujo, Marcelo B P Amato, Fernando Suárez-Sipmann
OBJECTIVE: The open lung approach is a mechanical ventilation strategy involving lung recruitment and a decremental positive end-expiratory pressure trial. We compared the Acute Respiratory Distress Syndrome network protocol using low levels of positive end-expiratory pressure with open lung approach resulting in moderate to high levels of positive end-expiratory pressure for the management of established moderate/severe acute respiratory distress syndrome. DESIGN: A prospective, multicenter, pilot, randomized controlled trial...
January 2016: Critical Care Medicine
François Lellouche, Mathieu Delorme, Jean Bussières, Alexandre Ouattara
Recent data promote the utilization of prophylactic protective ventilation even in patients without acute respiratory distress syndrome (ARDS), and especially after cardiac surgery. The implementation of specific perioperative ventilatory strategies in patients undergoing cardiac surgery can improve both respiratory and extra-pulmonary outcomes. Protective ventilation is not limited to tidal volume reduction. The major components of ventilatory management include assist-controlled mechanical ventilation with low tidal volumes (6-8 mL kg(-1) of predicted body weight) associated with higher positive end-expiratory pressure (PEEP), limitation of fraction of inspired oxygen (FiO2), ventilation maintenance during cardiopulmonary bypass, and finally recruitment maneuvers...
September 2015: Best Practice & Research. Clinical Anaesthesiology
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"