Figure 57-3
Ventilatory changes as a function of patient physical
status. The partial pressure of arterial carbon dioxide (PaCO2
)
and end-tidal carbon dioxide tension (PETCO2
)
were measured before and during carbon dioxide insufflation. Patients were grouped
according to ASA classification: group 1 (open circles),
ASA I (n = 20); group 2 (red circles), ASA II–III
(n = 10). (Data from Wittgen CM, Andrus CH, Fitzgerald SD, et al: Analysis
of the hemodynamic and ventilatory effects of laparoscopic cholecystectomy. Arch
Surg 126:997, 1991.)
