Document Detail


Can anesthesia ventilators provide high-frequency ventilation?
MedLine Citation:
PMID:  8067565     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We measured the tidal volumes (VT) delivered by two anesthesia ventilators (the Narkomed 2B and the Ohmeda 7800) to a model lung at frequencies of 60 breaths/min and 99-100 breaths/min under two conditions of compliance and resistance designed to mimic mild and severe adult respiratory distress syndrome (ARDS) (mild ARDS = S1 and severe ARDS = S2). The VT produced were measured with a pneumotachometer at the ventilator outflow and distal to the anesthesia circuit. With the Narkomed 2B, the VT measured at the entrance to the model lung decreased from 216 mL to 129 mL in S1, and from 152 mL to 88 mL in S2 as the ventilatory frequency increased from 60 to 99 breaths/min. With the Ohmeda 7800, the VT decreased from 213 mL to 118 mL in S1, and from 134 mL to 73 mL in S2 when the frequency was changed from 60 to 100 breaths/min. Since the delivered VT are similar to those previously reported to maintain adequate ventilation at these rates using standard high-frequency ventilation (HFV), it may be possible to use these newer anesthesia ventilators for this purpose.
Authors:
M J Tessler; P P Ruiz-Neto; R Finlayson; D Chartrand
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Anesthesia and analgesia     Volume:  79     ISSN:  0003-2999     ISO Abbreviation:  Anesth. Analg.     Publication Date:  1994 Sep 
Date Detail:
Created Date:  1994-09-22     Completed Date:  1994-09-22     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  1310650     Medline TA:  Anesth Analg     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  563-6     Citation Subset:  AIM; IM    
Affiliation:
Department of Anaesthesia, Jewish General Hospital, Montréal, Québec, Canada.
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MeSH Terms
Descriptor/Qualifier:
Anesthesia*
High-Frequency Ventilation / instrumentation*
Humans

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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