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  • Title: [Acute respiratory failure in obesity].
    Author: Reybet-Degat O, Massin F, Grangeon C, Hzam M, Merati M, Baudouin N, Noroohali B, Michaux K, Ducrocq V, Bonniaud P.
    Journal: Rev Pneumol Clin; 2002 Apr; 58(2):111-6. PubMed ID: 12082450.
    Abstract:
    Obstructive sleep apnea, obesity-related hypoventilation - a hypoventilation which is independent of apneas and increased by sleep -, and hypoxemia related to local ventilation-perfusion disorders are the main mechanisms of respiratory failure occurring during acute respiratory decompensation following an often minimal triggering event. Non-invasive ventilation has been found to be an effective treatment, particularly with a ventilator capable of maintaining positive expiratory and pressure. The level of the expiratory positive airway pressure must be adapted to cure episodes of obstructive apnea or hypopnea. The level of the inspiratory positive airway pressure (pressure support ventilator), or the tidal volume (volume-controlled ventilator) must be adapted to correct the residual hypoventilation. These adaptations can be made by proper assessment of nocturnal SaO(2) recordings. In particularly severe cases, use of endotracheal ventilation may be necessary to control a state of shock or consciousness disorders incompatible with the patient cooperation necessary for non-invasive ventilation.
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