Figure 5
Changes in PaCO 2 . Increasing PaCO2 was observed at 30 min and 1, 1.5, and 2 hours after insufflation and at desufflation compared with the baseline in the 6- and 9-mmHg groups (P <0.05). At 30 min after desufflation, PaCO2 levels returned to the baseline in the 6- and 9-mmHg groups Significant differences were not observed between the groups. Data are expressed as the mean ± SD. * P <0.05 versus baseline value.