Pressure-Controlled Ventilation-Volume Guaranteed Mode Combined with an Open-Lung Approach Improves Lung Mechanics, Oxygenation Parameters, and the Inflammatory Response during One-Lung Ventilation: A Randomized Controlled Trial

Table 2

Intraoperative characteristics.

	PCV+OLA; ()	PCV; ()	VCV+OLA; ()	VCV; ()
Type of surgery
Lobectomy	21 (46.7%)	24 (54.5%)	25 (55.6%)	23 (54.8%)	0.664
Wedge resection	20 (44.4%)	13 (29.5%)	13 (28.9%)	12 (28.6%)
Segmentectomy	4 (8.9%)	7 (15.9%)	7 (15.6%)	7 (16.7%)
Double lumen tube
Left/right	39/6	42/2	43/2	39/3	0.331
Vasoactive drugs	25 (55.6%)	23 (52.3%)	26 (57.8%)	22 (52.4%)	0.945
Volume of fluids (mL)	1002.50 (922.50, 1158.54)	1028.75 (925.52, 1163.00)	1068.75 (902.63, 1153.65)	1057.50 (917.71, 1270.94)	0.685
Urine output (mL)	300.00 (200.00, 500.00)	275.00 (200.00, 400.00)	300.00 (200.00, 400.00)	300.00 (200.00, 500.00)	0.401
Duration of operation (min)	140.00 (100.00, 193.50)	147.50 (107.50, 189.50)	155.00 (107.50, 190.00)	170.00 (114.25, 220.50)	0.339
Duration of anesthesia (min)	180.00 (140.00, 237.50)	195.00 (141.25, 225.00)	200.00 (145.00, 228.50)	212.50 (157.50, 262.50)	0.400
Duration of OLV (min)	120.00 (87.50, 175.00)	133.00 (96.25, 170.00)	135.00 (92.50, 175.00)	160.00 (100.00, 200.00)	0.352
Blood loss (mL)	40.00 (10.00, 50.00)	40.00 (10.00, 50.00)	50.00 (10.00, 50.00)	50.00 (10.00, 100.00)	0.489
HR
T1					0.548
T2					0.226
T3					0.539
MAP
T1					0.422
T2					0.343
T3					0.138

Data are expressed as (SD), numbers, or median (interquartile range). OLV: one-lung ventilation; HR: heart rate; T₁: total-lung ventilation 10 min after induction; T₂: one-lung ventilation 45 min; T₃: total-lung ventilation 10 min after one-lung ventilation; MAP: mean arterial pressure.