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    • Accuracy of oxygen flow delivered by compressed-gas cylinders in hospitals and prehospital emergency carePeer reviewedClosed access 

      mars 2018, Duprez, Frédéric; Michotte, Jean-Bernard; Cuvelier, Grégory; Legrand, Alexandre; Mashayekhi, Sharam; Reychler, Grégory, HE Condorcet
      Article scientifique
      Oxygen cylinders are widely used both in hospital and prehospital care. Excessive or inappropriate FIO2 may be critical for patients with hypercapnia or hypoxia. Moreover, over-oxygenation could be deleterious in ischemic disorders. Supplemental oxygen from oxygen cylinder should therefore be delivered accurately. The aim of this study was to assess the accuracy of oxygen flows for oxygen cylinder ...

    • The double trunk mask improves oxygenation during high-flow nasal cannula therapy for acute hypoxemic respiratory failurePeer reviewedClosed access 

      30 avril 2019, Duprez, Frédéric; Bruyneel, Arnaud; Machayekhi, Shahram; Droguet, Marie; Bouckaert, Yves; Brimiouille, Serge; Cuvelier, Grégory; Reychler, Grégory, HE Condorcet
      Article scientifique
      High-flow nasal cannula (HFNC) oxygen therapy is used to deliver an FIO2 from 0.21 to 1.0. The double-trunk mask (DTM) is a device designed to increase the FIO2 in patients with a high inspiratory flow demand. The aim of our study was to evaluate the effect of DTM in hypoxemic subjects already receiving HFNC.

    • A new formula for predicting the fraction of delivered oxygen during low-flow oxygen therapyPeer reviewedClosed access 

      décembre 2018, Duprez, Frédéric; Machayekhi, Shahram; Cuvelier, Grégory; Legrand, Alexandre; Reychler, Grégory, HE Condorcet
      Article scientifique
      During O2 therapy at low flow in patients who breathe spontaneously, the fraction of delivered O2 (FDO2) is unknown. In recent years, FDO2 prediction formulas have been proposed. However, they do not take into account the effect of inspiratory flow (V̇I) on the FDO2. The aim of this study was to validate a new FDO2 prediction formula, which takes into account the V̇I and compares it with other FDO2 ...

    • Thorpe tube and oxygen flow restrictor : what's flow accuracy ?Peer reviewedClosed access 

      10 février 2020, Duprez, Frédéric; Dubois, Adrien; Ollieuz, Sandra; Cuvelier, Grégory; Reychler, Grégory, HE Condorcet
      Article scientifique
      Oxygen gas flowmeters (OGF) are used to regulate the oxygen flow in acute and chronic care. In hospitals, Thorpe tubes (TT) are the classical systems most used for delivering oxygen. In recent years, the oxygen flow restrictor (OFR) has appeared. These devices use a series of calibrated openings in a disk that can be adjusted to deliver different flow rates. These devices have a reputation for ...

    • Variability of fractional delivered oxygen (FDO2) with nasal cannulaPeer reviewedOpen access 

      10 janvier 2017, Duprez, Frédéric; Bonus, Thierry; Cuvelier, Grégory; Machayekhi, Sharam; Ollieuz, Sandra; Reychler, Grégory, HE Condorcet
      Acte de conférence ou de colloque
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    • Where should we place the stethoscope's chestpiece to hear the noise of the primary bronchi ?Peer reviewedClosed access 

      10 janvier 2017, Duprez, Frédéric; Dupuis, Bastien; Cuvelier, Grégory; Bonus, Thierry; Ollieuz, Sandra; Machayekhi, Sharam; Reychler, Grégory, HE Condorcet
      Acte de conférence ou de colloque
      "The aim of our study is to evaluate the probability to find the primary bronchi by analysis of chest radiography."