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Proposal for a systematic analysis of polygraphy or polysomnography for identifying and scoring abnormal events occurring during non-invasive ventilation
  1. J Gonzalez-Bermejo1,
  2. C Perrin2,
  3. J P Janssens3,
  4. J L Pepin4,
  5. G Mroue5,
  6. P Léger6,
  7. B Langevin7,
  8. S Rouault8,
  9. C Rabec9,
  10. D Rodenstein10,
  11. on behalf of the SomnoNIV Group
  1. 1Service de Pneumologie et Réanimation Respiratoire, Hôpital de la Pitié-Salpétriere, Assistance Publique-Hôpitaux de Paris, ER10 UPMC, France
  2. 2Service de Pneumologie, Centre Hospitalier de Cannes, Cannes, France
  3. 3Pulmonary Division, Geneva University Hospital, Geneva, Switzerland
  4. 4Département de Pneumologie et Laboratoire du Sommeil, CHRU, Grenoble, France
  5. 5Laboratoire du Sommeil, Hôpital Raymond Poincaré, Assistance Publique-Hôpitaux de Paris, Garches, France
  6. 6Service de Pneumologie, Centre Hospitalier Lyon Sud, Lyon France
  7. 7Service de Réanimation, Centre Hospitalier, Briançon, France
  8. 8ADEP Assistance, Puteaux, France
  9. 9Service de Pneumologie et Réanimation Respiratoire, Centre Hospitalier et Universitaire de Dijon, Dijon, France
  10. 10Service de Pneumologie, Cliniques Universitaires Saint Luc, Université Catholique de Louvain, Bruxelles, Belgium
  1. Correspondence to Dr Jésus Gonzalez-Bermejo, Service de Pneumologie et Réanimation, GH Pitié Salpêtrière, 75651 Paris cedex 13, France; jesus.gonzalez{at}


Non-invasive ventilation (NIV) is recognised as an effective treatment for chronic hypercapnic respiratory failure. Monitoring NIV during sleep may be preferable to daytime assessment. This paper reports the findings of an international consensus group which systematically analysed nocturnal polygraphic or polysomnographic tracings recorded with either volume-cycled or pressure-cycled ventilators. A systematic description of nocturnal respiratory events which occur during NIV is proposed: leaks, obstruction at different levels of the upper airway (glottis and/or pharynx), with or without decrease of respiratory drive and asynchrony.

  • Non invasive ventilation
  • ventilators
  • sleep apnoea, obstructive
  • sleep apnoea, central
  • polysomnography, monitoring, sleep
  • assisted ventilation
  • non invasive ventilation
  • sleep apnoea
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  • Competing interests None.

  • Provenance and peer review Commissioned; externally peer reviewed.

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