Table 1. Caval Vein Pressures and Related Variables of Patients Undergoing Intraperitoneal or Left or Right Retroperitoneal*CO2Insufflation
Data are mean ± SD from 20 anesthetized patients undergoing either intraperitoneal (n = 8) or left (n = 6) or right (n = 6) retroperitoneal (prone position) CO2insufflation. P values in parenthesis derive from one-way** (insufflation pressure) and two-way (insufflation pressure × group) analysis of variance for repeated measurements within and across groups, respectively, as appropriate.
*P < 0.05 versus group baseline.
†P < 0.05 for comparison between groups at same insufflation pressure.
‡P < 0.05 versus group desufflation.
§P < 0.05 versus corresponding left retroperitoneal value.
∥P < 0.05 versus preceding group value.
#P < 0.05 versus 10 mmHg insufflation pressure.
ANOVA = analysis of variance.