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

Table 2

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

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 (%)	50.0	40.9	54.5	0.29
Crystalloids (mL)	7000 (4625–8875)	5500 (4500–8650)	7000 (5500–8875)	0.44
Colloids (mL)	1000 (500–1000)	500 (500–1250)	1000 (500–1000)	0.26
Fluid balance (ml)	800 (175–1420)	400 (−250–875)	800 (262–1750)	0.13
Vasopressors (%)	32.5	23.5	40.5	0.27
Length of surgery (hours)	6.9±2.4	7.0±3.1	6.8±1.9	0.83

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