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Brochard

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https://www.readbyqxmd.com/read/29774472/uncooked-spaghetti-in-a-colander-injection-of-semiflexible-polymers-in-a-nanopore
#1
Thomas Auger, Loïc Auvray, Jean-Marc Di Meglio, Fabien Montel
We study the flow injection of semiflexible polymers in a nanopore with a diameter smaller than the persistence length of the macromolecules. The suction model from de Gennes and Brochard is modified to take into account the effect of the rigidity of the polymer in the Odijk regime. We show that in this case of extreme confinement the flow threshold vanishes slowly and that in the limit of infinitely small nanopore the free energy barrier eventually disappears.
May 17, 2018: European Physical Journal. E, Soft Matter
https://www.readbyqxmd.com/read/29739857/how-ventilation-is-delivered-during-cardiopulmonary-resuscitation-an-international-survey
#2
Ricardo Luiz Cordioli, Laurent Brochard, Laurent Suppan, Aissam Lyazidi, François Templier, Abdo Khoury, Stephane Delisle, Dominique Savary, Jean-Christophe Richard
BACKGROUND: Recommendations regarding ventilation during cardiopulmonary resuscitation (CPR) are based on a low level of scientific evidence. We hypothesized that practices about ventilation during CPR might be heterogeneous and may differ worldwide. To address this question, we surveyed physicians from several countries on their practices during CPR. METHODS: We used a Web-based opinion survey. Links to the survey were sent by e-mail newsletters and displayed on the Web sites of medical societies involved in CPR practice from December 2013 to March 2014...
May 8, 2018: Respiratory Care
https://www.readbyqxmd.com/read/29733370/outcomes-of-perianal-fistulising-crohn-s-disease-following-anti-tnf%C3%AE-treatment-discontinuation
#3
Clémence Legué, Charlène Brochard, Grégoire Bessi, Timothée Wallenhorst, Marie Dewitte, Laurent Siproudhis, Guillaume Bouguen
Background: Discontinuation of antitumour necrosis factor (TNF)α therapy with perianal fistulising Crohn's disease remains controversial due to the risk of severe relapse without any clear evidence. Aim: The aim of this study was to assess the rate and type of perianal and luminal relapses following anti-TNFα discontinuation. Methods: All patients treated with anti-TNFα for perianal fistulising Crohn's disease with subsequent discontinuation of therapy were retrospectively reviewed from a prospective database (1998-2016)...
May 4, 2018: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/29716142/electrically-driven-pure-amplitude-and-frequency-modulation-in-a-quantum-cascade-laser
#4
Atif Shehzad, Pierre Brochard, Renaud Matthey, Stéphane Blaser, Tobias Gresch, Richard Maulini, Antoine Muller, Thomas Südmeyer, Stéphane Schilt
We present pure amplitude modulation (AM) and frequency modulation (FM) achieved electrically in a quantum cascade laser (QCL) equipped with an integrated resistive heater (IH). The QCL output power scales linearly with the current applied to the active region (AR), but decreases with the IH current, while the emission frequency decreases with both currents. Hence, a simultaneous modulation applied to the current of the AR and IH sections with a proper relative amplitude and phase can suppress the AM, resulting in a pure FM, or vice-versa...
April 30, 2018: Optics Express
https://www.readbyqxmd.com/read/29714066/effect-of-ankle-foot-orthoses-on-gait-balance-and-gross-motor-function-in-children-with-cerebral-palsy-a-systematic-review-and-meta-analysis
#5
Mael Lintanf, Jean-Sébastien Bourseul, Laetitia Houx, Mathieu Lempereur, Sylvain Brochard, Christelle Pons
OBJECTIVE: To determine the effects of ankle-foot orthoses (AFOs) on gait, balance, gross motor function and activities of daily living in children with cerebral palsy. DATA SOURCES: Five databases were searched (Pubmed, Psycinfo, Web of Science, Academic Search Premier and Cochrane Library) before January 2018. REVIEW METHODS: Studies of the effect of AFOs on gait, balance, gross motor function and activities of daily living in children with cerebral palsy were included...
April 1, 2018: Clinical Rehabilitation
https://www.readbyqxmd.com/read/29708892/continuous-negative-abdominal-pressure-reduces-ventilator-induced-lung-injury-in-a-porcine-model
#6
Takeshi Yoshida, Doreen Engelberts, Gail Otulakowski, Bhushan Katira, Martin Post, Niall D Ferguson, Laurent Brochard, Marcelo B P Amato, Brian P Kavanagh
BACKGROUND: In supine patients with acute respiratory distress syndrome, the lung typically partitions into regions of dorsal atelectasis and ventral aeration ("baby lung"). Positive airway pressure is often used to recruit atelectasis, but often overinflates ventral (already aerated) regions. A novel approach to selective recruitment of dorsal atelectasis is by "continuous negative abdominal pressure." METHODS: A randomized laboratory study was performed in anesthetized pigs...
April 27, 2018: Anesthesiology
https://www.readbyqxmd.com/read/29688401/anal-fistulas-in-severe-perineal-crohn-s-disease-mri-assessment-in-the-determination-of-long-term-healing-rates
#7
Charlène Brochard, Amandine Landemaine, Alexandre Merlini L'Heritier, Marie Provost Dewitte, Belinda Tchoundjeu, Tanguy Rohou, Aurélien Garros, Guillaume Bouguen, Laurent Siproudhis
Background & Aims: The European Crohn's and Colitis Organization recommends magnetic resonance imaging (MRI) of anal fistulas to decide on the drug/surgery strategy. No evidence is available on the long-term impact of MRI features on fistula healing. The aim of this study was to evaluate the benefit of combined drug/surgery strategies for the treatment of perianal Crohn's fistulas based on MRI factors at referral. Methods: The clinical event (anal abscess, new fistula tract, cellulitis), therapeutic intervention (introduction/optimization of immunosuppressant/biologics, anal surgery, intestinal resection, stoma), and MRI data were prospectively recorded for patients with Crohn's disease (CD) and anal fistulas...
April 20, 2018: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/29682175/alcam-shedding-at-the-invasive-front-of-the-tumor-is-a-marker-of-myometrial-infiltration-and-promotes-invasion-in-endometrioid-endometrial-cancer
#8
Laura Devis, Elena Martinez-Garcia, Cristian P Moiola, Maria Teresa Quiles, Maria Antonia Arbos, Tomita Vasilica Stirbat, Françoise Brochard-Wyart, Ángel García, Lorena Alonso-Alconada, Miguel Abal, Berta Diaz-Feijoo, William Thomas, Sylvie Dufour, Gemma Mancebo, Francesc Alameda, Jaume Reventos, Antonio Gil-Moreno, Eva Colas
Endometrial cancer (EC) is the sixth deadliest cancer in women. The depth of myometrial invasion is one of the most important prognostic factors, being directly associated with tumor recurrence and mortality. In this study, ALCAM, a previously described marker of EC recurrence, was studied by immunohistochemistry at the superficial and the invasive tumor areas from 116 EC patients with different degree of myometrial invasion and related to a set of relevant epithelial and mesenchymal markers. ALCAM expression presented a heterogeneous functionality depending on its localization, it correlated with epithelial markers (E-cadherin/β-catenin) at the superficial area, and with mesenchymal markers at the invasive front (COX-2, SNAIL, ETV5, and MMP-9)...
March 30, 2018: Oncotarget
https://www.readbyqxmd.com/read/29673905/-cardiovascular-adverse-effects-of-antimuscarinics-used-in-the-treatment-of-overactive-bladder-in-the-elderly-a-review
#9
C Chesnel, A Charlanes, C Hentzen, N Turmel, X Biardeau, C Brochard, S Campagne, G Capon, X Deffieux, B Fatton, X Gamé, R Haddad, C Jeandel, J Kerdraon, P Manceau, P Mares, M Mezzadri, P Mongiat-Artus, A-C Petit, B Peyronnet, J-M Soler, C Thuillier, J-M Vetel, G Robain, G Amarenco
AIM: The aim of this study was to review the evidence regarding the cardiovascular effects of urinary anticholinergic drugs in the elderly. METHODS: A literature review was conducted in October 2017 using the Medline/Pubmed database limiting the search to works in English or French. RESULTS: In total, 602 articles between March 1964 and October 2017 have been reported, 60 studies were analyzed, 19 were prospective trials. Geriatric population has a high prevalence of cardiovascular diseases (24...
April 16, 2018: Progrès en Urologie
https://www.readbyqxmd.com/read/29601320/esophageal-pressure-monitoring-why-when-and-how
#10
Takeshi Yoshida, Laurent Brochard
PURPOSE OF REVIEW: Esophageal manometry has shown its usefulness to estimate transpulmonary pressure, that is lung stress, and the intensity of spontaneous effort in patients with acute respiratory distress syndrome. However, clinical uptake of esophageal manometry in ICU is still low. Thus, the purpose of review is to describe technical tips to adequately measure esophageal pressure at the bedside, and then update the most important clinical applications of esophageal manometry in ICU...
March 29, 2018: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/29596015/continuous-negative-abdominal-pressure-mechanism-of-action-and-comparison-with-prone-position
#11
Takeshi Yoshida, Doreen Engelberts, Gail Otulakowski, Bhushan Katira, Niall D Ferguson, Laurent Brochard, Marcelo B P Amato, Brian P Kavanagh
We recently reported that continuous negative abdominal pressure (CNAP) could recruit dorsal atelectasis in experimental lung injury, and that oxygenation improved at different transpulmonary pressure values compared with increases in airway pressure (31). The mechanism of recruitment with CNAP is uncertain; and, its impact compared with a commonly proposed alternative approach to recruitment -prone positioning- is not known. We hypothesized that CNAP recruits lung by decreasing the vertical Ppl gradient (i...
March 29, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29584447/inspiratory-muscle-rehabilitation-in-critically-ill-adults-a-systematic-review-and-meta-analysis
#12
Stefannie Vorona, Umberto Sabatini, Sulaiman Al-Maqbali, Michele Bertoni, Martin Dres, Bernie Bissett, Frank Van Haren, A Daniel Martin, Cristian Urrea, Debbie Brace, Matteo Parotto, Margaret S Herridge, Neill Kj Adhikari, Eddy Fan, Luana T Melo, W Darlene Reid, Laurent J Brochard, Niall D Ferguson, Ewan C Goligher
BACKGROUND: Respiratory muscle weakness is common in critically ill patients; the role of targeted inspiratory muscle training (IMT) in ICU rehabilitation strategies remains poorly defined. OBJECTIVES: The primary objective was to describe the range and tolerability of published methods for IMT. The secondary objectives were to determine whether IMT improves respiratory muscle strength and clinical outcomes in critically ill patients. DATA SOURCES: We conducted a systematic review to identify randomized and non-randomized studies of physical rehabilitation interventions intended to strengthen the respiratory muscles in critically ill adults...
March 27, 2018: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29509509/international-practice-variation-in-weaning-critically-ill-adults-from-invasive-mechanical-ventilation
#13
Karen E A Burns, Stavroula Raptis, Rosane Nisenbaum, Leena Rizvi, Andrew Jones, Jyoti Bakshi, Wylie Tan, Aleksander Meret, Deborah J Cook, Francois Lellouche, Scott K Epstein, David Gattas, Farhad N Kapadia, Jesús Villar, Laurent Brochard, Martin R Lessard, Maureen O Meade
RATIONALE: Randomized trials and meta-analyses have informed several aspects of weaning. Results are rarely replicated in practice, as evidence is applied in intensive care units that differ from the settings in which it was generated. OBJECTIVES: We aimed to: 1) describe weaning practice variation (identifying weaning candidates, conducting spontaneous breathing trials, using ventilator modes, and other aspects of care during weaning); 2) characterize regional differences in weaning practices; and 3) identify factors associated with practice variation...
April 2018: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29500487/long-term-functional-outcomes-of-perineal-gangrene-worse-than-expected-an-observational-retrospective-study
#14
A Le Fouler, A Hamy, J Barbieux, V Souday, P Bigot, P Le Naoures, R Jaouen, C Brochard, Aurélien Venara
PURPOSE: For survivors of perineal gangrene (PG), quality of life and functional prognosis of pelvic functions are probably overestimated. The aim of this study was to report long-term anal and urinary sphincter dysfunctions, sexual sequelae, and patients' quality of life after treatment of perineal gangrene. METHODS: This retrospective observational study was conducted in one university hospital over 16 years. Seventy-three patients experienced PG; 22 were subject to long-term follow-up...
May 2018: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/29497778/is-my-patient-s-respiratory-drive-too-high
#15
Irene Telias, Laurent Brochard, Ewan C Goligher
No abstract text is available yet for this article.
March 1, 2018: Intensive Care Medicine
https://www.readbyqxmd.com/read/29474334/bedside-detection-of-overassistance-during-pressure-support-ventilation
#16
Laurent Brochard, Irene Telias
No abstract text is available yet for this article.
March 2018: Critical Care Medicine
https://www.readbyqxmd.com/read/29432712/expiratory-flow-limitation-during-mechanical-ventilation
#17
REVIEW
Detajin Junhasavasdikul, Irene Telias, Domenico Luca Grieco, Lu Chen, Cinta Millan Gutierrez, Thomas Piraino, Laurent Brochard
Expiratory flow limitation (EFL) is present when the flow cannot rise despite an increase in the expiratory driving pressure. The mechanisms of EFL are debated but are believed to be related to the collapsibility of small airways. In patients who are mechanically ventilated, EFL can exist during tidal ventilation, representing an extreme situation in which lung volume cannot decrease, regardless of the expiratory driving forces. It is a key factor for the generation of auto- or intrinsic positive end-expiratory pressure (PEEP) and requires specific management such as positioning and adjustment of external PEEP...
February 9, 2018: Chest
https://www.readbyqxmd.com/read/29406436/clinical-practice-guidelines-from-the-french-national-society-of-coloproctology-in-treating-chronic-constipation
#18
Veronique Vitton, Henri Damon, Alban Benezech, Dominique Bouchard, Sarah Brardjanian, Charlène Brochard, Benoit Coffin, Nadia Fathallah, Thierry Higuero, Pauline Jouët, Anne-Marie Leroi, Laure Luciano, Guillaume Meurette, Thierry Piche, Alain Ropert, Jean-Marc Sabate, Laurent Siproudhis
Chronic constipation is a common symptom that regularly affects the quality of life of adult patients. Its treatment is mainly based on dietary rules, laxative drugs, perineal rehabilitation and surgical treatment. The French National Society of Coloproctology offers clinical practice recommendations on the basis of the data in the current literature, including those on recently developed treatments. Most are noninvasive, and the main concepts include the following: stimulant laxatives are now considered safe drugs and can be more easily prescribed as a second-line treatment; biofeedback therapy remains the gold standard for the treatment of anorectal dyssynergia that is resistant to medical treatment; transanal irrigation is the second-line treatment of choice in patients with neurological diseases, but it may also be proposed for patients without neurological diseases; and although interferential therapy may be a new promising treatment, it needs further evaluation...
April 2018: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29378714/pharmacokinetics-of-tedizolid-in-an-obese-patient-after-bariatric-surgery
#19
Matthieu Grégoire, Julia Brochard Libois, Denis Waast, Benjamin Gaborit, Marc Dauty, Guillaume Deslandes, Eric Dailly, Sophie Touchais, David Boutoille, Nicolas Grégoire, William Couet
An obese woman was treated with oral tedizolid 200 mg once daily for pseudoarthrosis 10 years after Roux-en-Y bypass surgery. Total plasma peak concentration was 2.12 mg/liter 3 h after intake, and area under the concentration-time curve from 0 to 24 h (AUC0-24 ) was 28.3 mg/liter · h. The AUC0-24 /MIC ratio for unbound concentrations and for sensitive Staphylococcus and Streptococcus strains was ≥10.8, higher than the target ratio of 3. These results support the use of tedizolid without adjustment after bariatric surgery...
April 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29355550/research-in-extracorporeal-life-support-a-call-to-action
#20
Daniel Brodie, Jean-Louis Vincent, Laurent J Brochard, Alain Combes, Niall D Ferguson, Carol L Hodgson, John G Laffey, Alain Mercat, Antonio Pesenti, Michael Quintel, Arthur S Slutsky, V Marco Ranieri
No abstract text is available yet for this article.
April 2018: Chest
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