Predictable PaCO2 with two different flow settings using the Mapleson D system

Acta Anaesthesiologica Scandinavica
L Jonsson

Abstract

Two different settings of fresh gas flow (VFG) and minute ventilation (VE) used with the coaxial Mapleson D system (Bain), were evaluated in 59 adults (ASA I-III) during controlled ventilation and different types of surgical procedures. The two flow settings (alternatives A and B) were VFG of 75 and 110 ml.min-1.kg-1 and VE of 150 and 175 ml.min-1.kg-1, aiming to generate normocapnea and mild hypocapnea, respectively. The PaCO2 obtained with alternative A was 5.5 +/- 0.5 kPa (mean +/- s.d.), with 92% of the patients within the range 4.7-6.1 kPa. With alternative B, the PaCO2 was 4.4 +/- 0.5 kPa, with 82% of the patients within the range 3.5-4.9 kPa. It is concluded that these two flow regimes are suitable for clinical use when either normocapnea or mild hypocapnea is desired.

References

Feb 1, 1977·British Journal of Anaesthesia·H F SeeleyC M Conway
Mar 1, 1976·Anaesthesia·J D Henville, A P Adams
Jan 1, 1975·Canadian Anaesthetists' Society Journal·J A Bain, W E Spoerel
May 1, 1990·Acta Anaesthesiologica Scandinavica·L O JonssonR Lee
Oct 1, 1986·Acta Anaesthesiologica Scandinavica·L O Jonsson, H Zetterström
Feb 1, 1987·Acta Anaesthesiologica Scandinavica·L O Jonsson, H Zetterström
Feb 1, 1987·Acta Anaesthesiologica Scandinavica·L O JonssonH Zetterström
Jul 1, 1985·British Journal of Anaesthesia·C M Conway
Jul 1, 1972·Canadian Anaesthetists' Society Journal·J A Bain, W E Spoerel
Mar 1, 1980·Canadian Anaesthetists' Society Journal·R J Byrick

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Citations

Nov 1, 1994·Acta Anaesthesiologica Scandinavica·O MentellL Jonsson

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