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. Author manuscript; available in PMC: 2007 Sep 1.
Published in final edited form as: Anesth Analg. 2006 Sep;103(3):677–681. doi: 10.1213/01.ane.0000229715.71464.90

Table 3.

Intraoperative Hemodynamics, Respiratory Variables, and Tissue Oxygenation.

Normocapnia Hypercapnia P
End-tidal PCO2 (mmHg) 35 ± 2 52 ± 6 <0.001
Arterial PCO2 (mmHg) 42 ± 8 58 ± 7 <0.001
Arterial pH 7.38 ± 0.08 7.29 ± 0.05 <0.001
MAP (mmHg) 88 ± 15 87 ± 9 0.817
Heart Rate (beats/min) 83 ± 18 81 ± 10 0.676
Cardiac Index (L/m2) 3.6 ± 0.8 3.7 ± 0.8 0.740
PaO2 (mmHg) 222 ± 48 230 ± 68 0.705
TsqO2 (°C) 34.3 ± 2.2 34.1 ± 1.8 0.797
PsqO2 (mmHg) 56 ± 13 78 ± 31 0.029

Data are presented as means ± SDs. Means were compared with unpaired, two-tailed t tests. End-tidal PCO2 = end tidal carbon dioxide partial pressure. Arterial PCO2 = arterial carbon dioxide pressure. MAP = mean arterial pressure. PaO2 = arterial oxygen partial pressure TsqO2 = tissue temperature in the PsqO2 measurement area. PsqO2 = tissue oxygen partial pressure.