Respiratory variations in pulse pressure and photoplethysmographic waveform amplitude during positive expiratory pressure and continuous positive airway pressure in a model of progressive hypovolemia

• Ingrid Elise Hoff ,

  Roles Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Validation, Writing – original draft, Writing – review & editing

  * E-mail: iehoff@yahoo.no

  Affiliations Norwegian Air Ambulance Foundation, Sentrum, Oslo, Norway, Department of Anesthesiology, Oslo University Hospital, Nydalen, Oslo, Norway

  http://orcid.org/0000-0001-7001-9530

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• Jonny Hisdal,

  Roles Data curation, Investigation, Methodology, Resources, Software, Validation, Writing – review & editing

  Affiliations Section of Vascular Investigations, Department of Vascular Surgery, Oslo University Hospital, Nydalen, Oslo, Norway, Faculty of Medicine, University of Oslo, Blindern, Oslo, Norway

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• Svein Aslak Landsverk,

  Roles Project administration, Resources, Supervision, Validation, Writing – review & editing

  Affiliation Department of Anesthesiology, Oslo University Hospital, Nydalen, Oslo, Norway

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• Jo Røislien,

  Roles Formal analysis, Methodology, Resources, Supervision, Validation, Writing – review & editing

  Affiliation Norwegian Air Ambulance Foundation, Sentrum, Oslo, Norway

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• Knut Arvid Kirkebøen,

  Roles Funding acquisition, Methodology, Resources, Supervision, Writing – review & editing

  Affiliation Faculty of Medicine, University of Oslo, Blindern, Oslo, Norway

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• Lars Øivind Høiseth

  Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Project administration, Resources, Supervision, Validation, Writing – review & editing

  Affiliations Department of Anesthesiology, Oslo University Hospital, Nydalen, Oslo, Norway, Section of Vascular Investigations, Department of Vascular Surgery, Oslo University Hospital, Nydalen, Oslo, Norway

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