A large Venous-Arterial PCO₂ Is Associated with Poor Outcomes in Surgical Patients

Table 3

Patient characteristics and comparison between patients with adequate [P(v-a)CO₂] < 5.0 and [P(v-a)CO₂] ≥ 5.0 in postoperative.

Variables	All patients; (𝑛=66)	[P(v-a)CO2] < 5.0 mmHg; (𝑛=22)	[P(v-a)CO2] ≥ 5.0 mmHg; (𝑛=44)	𝑃
Transfusion (%)	18.2	18.2	18.2	1.00
Crystalloids (mL)	1900 (1000–2500)	1500 (1000–2875)	2000 (1000–2500)	0.77
Colloids (mL)	500 (500–875)	500 (500–750)	500 (500–1000)	1.00
Duration of mechanical ventilation (hours)	24 (12–24)	12 (12–24)	24 (12–30)	0.07

Values between brackets represent the median and percentile 25–75%.