Document Detail

Clinical evaluation of a continuous oxygen consumption monitor in mechanically ventilated patients.
MedLine Citation:
PMID:  12694002     Owner:  NLM     Status:  MEDLINE    
We measured oxygen consumption using a new noninvasive modular metabolic monitor, M-COVX trade mark, in ventilated critically ill patients. Oxygen consumption was measured continuously as part of routine monitoring for up to 24 h following mechanical ventilation in 27 patients admitted to a general intensive care unit. We explored several possible sources of error. Most errors related to inaccurate tidal volume measurement, which resulted in rejection of a median 14% (interquartile range 8-34%) of data. Water accumulation in the pneumotachograph was responsible and occurred more frequently with water bath humidifiers. After manual removal of erroneous data mean oxygen consumption values were virtually identical to calculated values in 24 of 27 patients. We conclude that in most ventilated patients averaging of continuous oxygen consumption data with the M-COVX module results in small errors.
L Donaldson; S Dodds; T S Walsh
Publication Detail:
Type:  Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Anaesthesia     Volume:  58     ISSN:  0003-2409     ISO Abbreviation:  Anaesthesia     Publication Date:  2003 May 
Date Detail:
Created Date:  2003-04-15     Completed Date:  2003-06-05     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370524     Medline TA:  Anaesthesia     Country:  England    
Other Details:
Languages:  eng     Pagination:  455-60     Citation Subset:  AIM; IM    
Department of Anaesthesia, Critical Care and Pain Medicine, Royal Infirmary of Edinburgh, 1 Lauriston Place, Edinburgh, EH3 9YW, UK.
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MeSH Terms
Calorimetry, Indirect
Critical Illness / therapy*
Monitoring, Physiologic / instrumentation
Oxygen Consumption*
Prospective Studies
Respiration, Artificial*

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