help button home button
AJRCCM
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by TASSAUX, D.
Right arrow Articles by CHEVROLET, J.-C.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by TASSAUX, D.
Right arrow Articles by CHEVROLET, J.-C.

Am. J. Respir. Crit. Care Med., Volume 160, Number 1, July 1999, 22-32

Calibration of Seven ICU Ventilators for Mechanical Ventilation with Helium-Oxygen Mixtures

DIDIER TASSAUX, PHILIPPE JOLLIET, JEAN-MARC THOURET, JEAN ROESELER, RENÉ DORNE, and JEAN-CLAUDE CHEVROLET

Medical Intensive Care Division, University Hospital, Geneva, Switzerland; Service de Réanimation Médicale et Assistance Respiratoire, Hôpital de la Croix-Rousse, Lyon, France; Soins Intensifs, Clinique Universitaire St.-Luc, Brussels, Belgium; and Département d'Anesthésie-Réanimation, Hôpital St.-Luc, Lyon, France

The study evaluated seven intensive care unit (ICU) ventilators (Veolar FT, Galileo, Evita 2, Evita 4, Servo 900C, Servo 300, Nellcor Puritan Bennett 7200 Series) with helium-oxygen (HeO2), using a lung model, to develop correction factors for the safe use of HeO2. A 70:28 helium-O2 mixture (heliox) replaced air and combined with O2 (HeO2). Theoretical impact of HeO2 on inspiratory valves and gas mixing was computed. True fraction of inspired oxygen (FIO2del) was compared with fraction of inspired oxygen (FIO2) set on the ventilator (FIO2set). True tidal volume (VTdel) was compared with VT set on the ventilator (VTset) in volume control and with control VTdel at FIO2 1.0 in pressure control. FIO2del minimally exceeded FIO2set (=< 5%) except with the 7200 Series (FIO2del > FIO2set by 125%). In volume control, with the Veolar FT, Galileo, Evita 2, and Servo 900C, VTdel > VTset, with the 7200 Series VTdel < VTset (linear relationship, magnitude of discrepancy inversely related to FIO2set). With the Evita 4, VTdel > VTset (nonlinear relationship), whereas with the Servo 300 VTdel = VTset. In pressure control, VTdel was identical to control measurements, except with the 7200 Series (ventilator malfunction). Correction factors were developed that can be applied to most ventilators.




This article has been cited by other articles:


Home page
 ChestHome page
S. Dhuper, S. Choksi, S. Selvaraj, G. Jha, A. Ahmed, H. Babbar, B. Walia, A. Chandra, V. Chung, and C. Shim
Room Air Entrainment During {beta}-Agonist Delivery With Heliox.
Chest, October 1, 2006; 130(4): 1063 - 1071.
[Abstract] [Full Text] [PDF]

Home page
 ChestHome page
J. E. Kass
Heliox Redux
Chest, March 1, 2003; 123(3): 673 - 676.
[Full Text] [PDF]

Home page
 ChestHome page
A. Oppenheim-Eden, Y. Cohen, C. Weissman, and R. Pizov
The Effect of Helium on Ventilator Performance : Study of Five Ventilators and a Bedside Pitot Tube Spirometer
Chest, August 1, 2001; 120(2): 582 - 588.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Respir. Crit. Care Med.Home page
M. L. GOODE, J. B. FINK, R. DHAND, and M. J. TOBIN
Improvement in Aerosol Delivery with Helium-Oxygen Mixtures during Mechanical Ventilation
Am. J. Respir. Crit. Care Med., January 1, 2001; 163(1): 109 - 114.
[Abstract] [Full Text]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Proc. Am. Thorac. Soc. Am. J. Respir. Cell Mol. Biol.
Copyright © 1999 American Thoracic Society 		  Solid Organ Transplant for the Intensivist 2008