title: Battery life of portable home ventilators: effects of ventilator settings.
abstract: BACKGROUND
  The battery life (BL) of portable home ventilator batteries is reported by manufacturers. The aim of this study was to evaluate the effects of ventilator mode, breathing frequency, PEEP, and leaks on the BL of 5 commercially available portable ventilators.
  
  
  METHODS
  The effects of the ventilator mode (volume controlled-continuous mandatory ventilation [VC-CMV] vs pressure support ventilation [PSV]), PEEP 5 cm H2O, breathing frequency (10, 15, and 20 breaths/min), and leaks during both volume-targeted ventilation and PSV on the BL of 5 ventilators (Elisée 150, Monnal T50, PB560, Vivo 50, and Trilogy 100) were evaluated. Each ventilator was ventilated with a test lung at a tidal volume of 700 ml and an inspiratory time of 1.2 s in the absence of leaks.
  
  
  RESULTS
  Switching from PSV to VC-CMV or the addition of PEEP did not significantly change ventilator BL. The increase in breathing frequency from 10 to 20 breaths/min decreased the BL by 18 ± 11% (P = .005). Leaks were associated with an increase in BL during the VC-CMV mode (18 ± 20%, P = .04) but a decrease in BL during the PSV mode (-13 ± 15%, P = .04).
  
  
  CONCLUSIONS
  The BL of home ventilators depends on the ventilator settings. BL is not affected by the ventilator mode (VC-CMV or PSV) or the addition of PEEP. BL decreases with an increase in breathing frequency and during leaks with a PSV mode, whereas leaks increase the duration of ventilator BL during VC-CMV.
authors.affiliation: Service de Physiologie-Explorations Fonctionnelles, Services de Réanimation Médicale, et Centre d'Innovations Technologiques, Unité Mixte de Recherche 805, Hôpital Raymond Poincaré, Assistance Publique Hôpitaux de Paris, Garches, France, and EA 4497, Université de Versailles Saint-Quentin-en-Yvelines, France.
authors.forename: Line
authors.initials: L
authors.lastname: Falaize
authors.affiliation: ASV Santé, Gennevilliers, France.
authors.forename: Karl
authors.initials: K
authors.lastname: Leroux
authors.affiliation: Service de Physiologie-Explorations Fonctionnelles, Services de Réanimation Médicale, et Centre d'Innovations Technologiques, Unité Mixte de Recherche 805, Hôpital Raymond Poincaré, Assistance Publique Hôpitaux de Paris, Garches, France, and EA 4497, Université de Versailles Saint-Quentin-en-Yvelines, France.
authors.forename: Hélène
authors.initials: H
authors.lastname: Prigent
authors.affiliation: Institut National de la Santé et de la Recherche Médicale, U995, Créteil, France; Faculté de Médecine, Université Paris Est, Créteil, France; and Centre National de la Recherche Scientifique, ERL 7240, Créteil, France.
authors.forename: Bruno
authors.initials: B
authors.lastname: Louis
authors.affiliation: Pediatric Pulmonary Department, Hôpital Armand Trousseau, Assistance Publique Hôpitaux de Paris, Institut National de la Santé et de la Recherche Médicale, U955, Créteil, France, and Pierre et Marie Curie University, Paris, France.S2A Santé, Ivry-sur-Seine, France.
authors.forename: Sonia
authors.initials: S
authors.lastname: Khirani
authors.affiliation: Service de Physiologie-Explorations Fonctionnelles, Services de Réanimation Médicale, et Centre d'Innovations Technologiques, Unité Mixte de Recherche 805, Hôpital Raymond Poincaré, Assistance Publique Hôpitaux de Paris, Garches, France, and EA 4497, Université de Versailles Saint-Quentin-en-Yvelines, France.
authors.forename: David
authors.initials: D
authors.lastname: Orlikowski
authors.affiliation: Pediatric Pulmonary Department, Hôpital Armand Trousseau, Assistance Publique Hôpitaux de Paris, Institut National de la Santé et de la Recherche Médicale, U955, Créteil, France, and Pierre et Marie Curie University, Paris, France.
authors.forename: Brigitte
authors.initials: B
authors.lastname: Fauroux
authors.affiliation: Service de Physiologie-Explorations Fonctionnelles, Services de Réanimation Médicale, et Centre d'Innovations Technologiques, Unité Mixte de Recherche 805, Hôpital Raymond Poincaré, Assistance Publique Hôpitaux de Paris, Garches, France, and EA 4497, Université de Versailles Saint-Quentin-en-Yvelines, France. f.lofaso@rpc.ap-hop-paris.fr.
authors.forename: Frédéric
authors.initials: F
authors.lastname: Lofaso
mesh_terms: D000328:Adult; D011211:Electric Power Supplies; D006699:Home Care Services; D006801:Humans; D008954:Models, Biological; D012121:Respiration, Artificial / Q000379:methods*; D013990:Tidal Volume; D013997:Time Factors; D012122:Ventilators, Mechanical
keywords: batteries; home ventilators; leaks; portable ventilators; pressure support; volume-targeted mode