In the recovery room all measured variables were within normal range in both groups. Despite inter-group differences in arterial and tonometric PCO2 and pH values during CO2 pneumoperitoneum, the patients did not develop splanchnic hypoperfusion detectable by air tonometric method, as indicated by ...
(70, 100, 200 ml. kg ' . rain-~ over a range of minute ventila- lions from 4 to 10 litres, rain -I in Figure 6. On each of the three lines there was a point of identi- cal PAean, 4.9 kPa (37 torr) achieved by three different combinations of minute ventilation and fresh gas...
When PaO2 was decreased to physiological values (less than 13.3 kPa), with a low normal PaCO2 (less than 5.3 kPa), the decrease in PNA by HFV and PEEP (0.5 kPa) was decreased to 25%. It was concluded that the frequency of ventilation per se has little or no effect on PNA in the ...