• C Galland, F X Ferrand, A Cividjian, B Sergent, C Pichot, M Ghignone, and L Quintin.
• Acta Anaesthesiol Belg. 2014 Jan 1; 65 (3): 109-17.

AbstractA morbidly obese (body mass index = 55.5) female patient presented with severe hypoxemic community acquired pneumonia [PaO2/FiO2 (P/F) = 57] with primarily right basal atelectasis, but without bilateral opacities in the upper lobes on the chest X-ray. Major O2 desaturations led the nurses to object to moving the patient to the prone position: muscle relaxation combined to prone position was impossible. Therefore, stringent 60 degrees reverse Trendelenburg legs down position was constantly maintained during mechanical ventilation through the endotracheal tube, using low pressure support (pressure support = 5-10 cmH2O) and high positive end-expiratory pressure (PEEP). PEEP was progressively increased to 20 cmH2O, and little or no sedation was used. A P/F improvement from 57 to 200 over three days allowed removing the tracheal tube. The patient was discharged 13 days after admission. In this paper, the use of high PEEP in the context of morbid obesity, and low pressure support are discussed.

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