Hemodynamic effects of portable non-invasive ventilation in healthy men

Nikolaos Chynkiamis, Matthew Armstrong, James Manifield, Emily Hume, Caroline Reilly, Andrea Aliverti, Alasdair O'Doherty, Ioannis Vogiatzis*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

VitaBreath is a portable, non-invasive ventilation device (pNIV) that relieves shortness of breath in COPD by delivering fixed inspiratory and expiratory positive airway pressures (IPAP/EPAP: 18/8 cmH2O). Fixed pressures may cause circulatory compromise. We investigated the circulatory effects of pNIV during normal breathing (NB) and after Eucapnic Voluntary Hyperpnoea trials (EVH) sustained at 80% MVV. In a balanced order sequence, 10 healthy men performed four trials on one visit: 1-min of pNIV (intervention) or 1-min quiet breathing (QB) during NB; and 1-min pNIV (intervention) or 1-min QB during recovery from 3-min EVH. Compared to QB, pNIV application was associated with greater cardiac output (CO: 1.6 ± 1.9 L.min-1; P = 0.03). One minute into recovery from EVH, pNIV caused greater CO (2.2 ± 1.6 L.min-1; P = 0.01) compared to QB. Mean blood pressure was not different with pNIV compared to control. pNIV increased thoracoabdominal volumes and breathing frequency during NB and recovery from EVH. pNIV application does not induce adverse hemodynamic effects in healthy men.
Original languageEnglish
Article number103248
Pages (from-to)1-9
Number of pages9
JournalRespiratory Physiology & Neurobiology
Volume268
Early online date1 Jul 2019
DOIs
Publication statusPublished - 1 Oct 2019

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