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Titolo:
ERROR IN MEASUREMENT OF OXYGEN AND CARBON-DIOXIDE CONCENTRATIONS BY THE DELTATRACII METABOLIC MONITOR IN THE PRESENCE OF DESFLURANE
Autore:
SCHEEREN TWL; KROSSA M; MERILAINEN P; ARNDT JO;
Indirizzi:
UNIV DUSSELDORF,INST EXPT ANAESTHESIOL,MOORENSTR 5,GEB 2302 D-40225 DUSSELDORF GERMANY INSTRUMENTARIUM CORP,DATEX ENGSTROM DIV HELSINKI FINLAND
Titolo Testata:
British Journal of Anaesthesia
fascicolo: 4, volume: 80, anno: 1998,
pagine: 521 - 524
SICI:
0007-0912(1998)80:4<521:EIMOOA>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
ANESTHETICS;
Keywords:
ANESTHETICS VOLATILE, DESFLURANE; MONITORING, OXYGEN; MEASUREMENT TECHNIQUES, CALORIMETRY; EQUIPMENT, GAS ANALYZERS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
9
Recensione:
Indirizzi per estratti:
Citazione:
T.W.L. Scheeren et al., "ERROR IN MEASUREMENT OF OXYGEN AND CARBON-DIOXIDE CONCENTRATIONS BY THE DELTATRACII METABOLIC MONITOR IN THE PRESENCE OF DESFLURANE", British Journal of Anaesthesia, 80(4), 1998, pp. 521-524

Abstract

In experiments in dogs on the metabolic effects of inhalation anaesthetics, we noticed that in the presence of desflurane, oxygen uptake ((V) over dot O-2) measured with the Deltatracll metabolic monitor seemingly increased whereas it decreased when determined independently by the Fick principle. This difference remained even after correction for changes in gas concentration on addition of an inhalation anaesthetic. Therefore, we suspected that desflurane interferes with the measurement of gas concentrations. Using different precision gases, we found that desflurane disturbed both the paramagnetic oxygen sensor and the infrared carbon dioxide detector so that the measured oxygen (when Fi(O2) was >0.21) and carbon dioxide concentrations were greater than expected. These errors multiply in the computing process of oxygen uptake by the Deltatracll. When the Deltatracll is to be used during inhalation anaesthesia, its results should be corrected for the presence of an anaesthetic gas. More importantly, corrections must also be made for measurement errors of the oxygen and carbon dioxide sensors, unless thedevice has been equipped with a modified (nickel membrane) oxygen sensor insensitive to the presence of volatile agents.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 14/07/20 alle ore 05:45:02