[The closed system (author's transl)]. / Das geschlossene System.
Anaesthesist
; 26(9): 495-502, 1977 Sep.
Article
em De
| MEDLINE
| ID: mdl-907085
ABSTRACT
It is appropriate to consider dose-regulated or quantitative closed-circuit anesthesia in terms of uptake of inhalation anesthetics from a reservoir bag which is never allowed to fill completely. The method which the authors have used routinely for 8 years requires reduction of the dose as a function of the inverse square root of elapsed anaesthesia time. Nitrogen does not accumulate because there is an inevitable loss of 20 to 100 ml/min between cuff and trachea. A simpler method, which has been well received, is that of "minimal flow" anesthesia (Virtue) with a constant fresh gas flow of 300 ml/min O2 and 200 ml/min N2O. "Low-flow" techniques typically entail use of 500 ml each of O2 and N2O per min.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Anestesia por Inalação
Limite:
Humans
Idioma:
De
Revista:
Anaesthesist
Ano de publicação:
1977
Tipo de documento:
Article