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Sökning: WFRF:(Puertolas Maria)

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1.
  • Carraminana, Albert, et al. (författare)
  • Rationale and Study Design for an Individualized Perioperative Open Lung Ventilatory Strategy in Patients on One-Lung Ventilation (iPROVE-OLV)
  • 2019
  • Ingår i: Journal of Cardiothoracic and Vascular Anesthesia. - : W B SAUNDERS CO-ELSEVIER INC. - 1053-0770 .- 1532-8422. ; 33:9, s. 2492-2502
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: The aim of this clinical trial is to examine whether it is possible to reduce postoperative complications using an individualized perioperative ventilatory strategy versus using a standard lung-protective ventilation strategy in patients scheduled for thoracic surgery requiring one-lung ventilation. Design: International, multicenter, prospective, randomized controlled clinical trial. Setting: A network of university hospitals. Participants: The study comprises 1,380 patients scheduled for thoracic surgery. Interventions: The individualized group will receive intraoperative recruitment maneuvers followed by individualized positive end-expiratory pressure (open lung approach) during the intraoperative period plus postoperative ventilatory support with high-flow nasal cannula, whereas the control group will be managed with conventional lung-protective ventilation. Measurements and Main Results: Individual and total number of postoperative complications, including atelectasis, pneumothorax, pleural effusion, pneumonia, acute lung injury; unplanned readmission and reintubation; length of stay and death in the critical care unit and in the hospital will be analyzed for both groups. The authors hypothesize that the intraoperative application of an open lung approach followed by an individual indication of high-flow nasal cannula in the postoperative period will reduce pulmonary complications and length of hospital stay in high-risk surgical patients. (C) 2019 Published by Elsevier Inc.
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2.
  • Jiménez, Maria Dolores, et al. (författare)
  • Deep shade alters the acclimation response to moderate water streee in Quercus suber L.
  • 2009
  • Ingår i: Forestry (London). - : Oxford University Press (OUP). - 0015-752X .- 1464-3626. ; 82:3, s. 285-298
  • Tidskriftsartikel (refereegranskat)abstract
    • The interactive effects of shade and drought on different morphologicaland physiological traits were addressed on Quercus suber L.seedlings. In our experiment, limited light treatment (1 percent) represented the main factor constraining cork oak seedlingsgrowth. Maximal photochemical efficiency (Fv/Fm) with light15 per cent exhibited a midday fall, but under deep shade (1per cent), Fv/Fm remained constant (<0.8 values) throughoutthe day. The quantum efficiency of photosystem II (PSII) waslower under moderate drought only in deeply shaded plants. Thedrought also interacted with light through the increase of thesoluble sugar content at 100 per cent light, but not under shade.Under deep shade, soluble sugar content tended to be even lowerunder moderate drought conditions. The chlorophyll content wasnot the highest under deep shade as could be expected, whilethe efficiency of PSII was the lowest under deep shade. We concludedthat cork oak can acclimate to moderate shade (15 per cent light),but deep shade impairs some of the physiological responses tocope with low light conditions under moderate drought stress.Plants growing under deep shade were very sensitive to moderatewater stress in terms of loss of carbon fixation capacity.
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