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Continuous measurement of the CO2 concentration in inhaled gas is the best method to know accurately the importance of rebreathing. Four anesthetic breathing systems were studied in 60 adult patients (Dighby-Leigh valve, circle system with and without soda lime. Waters system without soda lime, Bain circuit). Fresh gas flows (FGF) inspired and end-expired concentrations of CO2 (FI CO2, FE' CO2) and PaCO2 are measured. The FI CO2 seems to be negligible with Dighby-Leign valve and circle system with soda lime but important with other systems, even with FGF as high as 200 ml/kg, the FI CO2 is about 1 p. cent for Bain circuit, 2 p. cent in spontaneous ventilation, 2,7 p. cent in controlled ventilation for Waters valve. It is possible to theoretically determine that the FI CO2 would not exceed 1 p. cent.
R Krivosic-Horber, and
G Cacheux, and
P Hanoulle
March 1977,
Der Anaesthesist,
R Krivosic-Horber, and
G Cacheux, and
P Hanoulle
January 1979,
Anesthesie, analgesie, reanimation,
R Krivosic-Horber, and
G Cacheux, and
P Hanoulle
June 1980,
Anasthesie, Intensivtherapie, Notfallmedizin,
R Krivosic-Horber, and
G Cacheux, and
P Hanoulle
November 2009,
Anaesthesia,
R Krivosic-Horber, and
G Cacheux, and
P Hanoulle
January 1981,
Revue francaise des maladies respiratoires,
R Krivosic-Horber, and
G Cacheux, and
P Hanoulle
February 1981,
Anasthesie, Intensivtherapie, Notfallmedizin,
R Krivosic-Horber, and
G Cacheux, and
P Hanoulle
January 1979,
Revista espanola de obstetricia y ginecologia,
R Krivosic-Horber, and
G Cacheux, and
P Hanoulle
December 1977,
MMW, Munchener medizinische Wochenschrift,
R Krivosic-Horber, and
G Cacheux, and
P Hanoulle
January 1980,
Anesthesie, analgesie, reanimation,
R Krivosic-Horber, and
G Cacheux, and
P Hanoulle
October 1978,
Praktische Anasthesie, Wiederbelebung und Intensivtherapie,
