Skip to main content
SpringerLink
Log in

Fall in inspired oxygen and anaesthetic agent concentrations during change of soda lime absorber

  • Brief Report
  • Published:
Journal of Clinical Monitoring and Computing Aims and scope Submit manuscript

Abstract

Following an episode of reduction in inspired oxygen concentration (FiO2) and inhalational agent concentration (Fi agent) during the changing of a soda lime absorber, We conducted an in vitro experiment to understand the impact of disconnection of the absorber on inspired gas dilution at different fresh gas flows. We found that both in Dräger Fabius GS and Primus anaesthesia work stations, disconnection of the absorber caused progressive reduction in FiO2 and Fi agent as the FGF was decreased. The operating principle of fresh gas decoupling (FGD) valve is a potential source of this complication, which must be kept in mind while changing the soda lime during the course of surgery where an anaesthetic work stations utilizing FGD valves are used.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1

References

  1. Appendix—daily and peruse checkout form. In: Dräger Fabius GS operator’s manual. 3rd ed. Germany: Dräger Medical AG & Co. KG; 2006.

  2. Brockwell CR, Andrews JJ. Inhaled anesthetic delivery systems. In: Miller DR, Eriksson IL, Fleisher AL, Wiener-Kronish PJ, Young LW, editors. Miller’s anesthesia. 7th ed. Philadelphia: Churchill Livingstone; 2010. p. 702–4.

    Google Scholar 

  3. Murphy E, Willis S. Awareness and hypoxia risk with Dräger Cato and Fabius anaesthesia machines. Anaesth Intensive Care. 2004;32:721–2.

    CAS  PubMed  Google Scholar 

  4. Roiss M, Bremer K, Schmidt GN. Intraoperative drop in sevoflurane and oxygen concentration. Leakage of the ventilation system. Anesthesist. 2009;58:1226–30.

    Article  CAS  Google Scholar 

Download references

Conflict of interest

The current work has been done only with institutional resources and none of the authors has received any financial support for the work. None of the authors has any conflict of interest in the material submitted.

Informed Consent

Institutional ethics committee (IEC) written permission obtained for publication.

Author information

Authors and Affiliations

  1. Department of Neuroanaesthesia, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, 560029, India

    Byrappa Vinay, Kadarapura Nanjundaiah Gopalakrishna & Ganne S. Umamaheswara Rao

Authors
  1. Byrappa Vinay
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Kadarapura Nanjundaiah Gopalakrishna
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Ganne S. Umamaheswara Rao
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Kadarapura Nanjundaiah Gopalakrishna.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Vinay, B., Gopalakrishna, K.N. & Umamaheswara Rao, G.S. Fall in inspired oxygen and anaesthetic agent concentrations during change of soda lime absorber. J Clin Monit Comput 29, 373–376 (2015). https://doi.org/10.1007/s10877-014-9614-2

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10877-014-9614-2

Keywords

Search

Navigation