Effect of Intermittent Positive Pressure Ventilation on Depth of Anaesthesia during and after Isoflurane Anaesthesia in Sulphur-Crested Cockatoos (Cacatua galerita galerita)

Table 4

Mean ± SD values for venous hydrogen ion concentration (pH), carbon dioxide partial pressure (pCO₂), oxygen partial pressure (pO₂), bicarbonate (HCO₃⁻), base excess (BE), and haemoglobin oxygen saturation (O₂ Sat) during intermittent positive pressure ventilation (IPPV) with peak inspiratory pressure of 4 cmH₂O at 12 respirations per minute inhaling 3.0% isoflurane in 100% oxygen in 6 sulphur-crested cockatoos (Cacatua galerita galerita).

Time (min)	pH	pCO2 (mmHg)	pO2 (mmHg)	HCO3^− (mmol/L)	BE (mmol/L)	O2 sat. (%)
0	7.4 ± 0	37.3 ± 6	110 ± 24	22 ± 3	−2.8 ± 3	98 ± 1
30	7.5 ± 0	33.1 ± 3	72 ± 9	26 ± 2	3 ± 2	96 ± 1
60	7.5 ± 0	34.3 ± 4	82 ± 12	26 ± 2	3.6 ± 2	97 ± 1

Adapted and modified with permission from Chemonges, “Effect of intermittent positive pressure ventilation (IPPV) on acid-base balance and plasma electrolytes during isoflurane anaesthesia in sulphur-crested cockatoos (Cacatua  galerita  galerita),” [3].