Table 1 Characteristics of patients receiving desflurane-remifentanil or propofol-remifentanil during one-lung ventilation for thoracoscopic surgery

Female

18 (35%)

23 (45%)

0.277

Age (year)

63 ± 8

62 ± 10

0.841

Body mass index (kg/m²)

24.0 ± 2.8

22.9 ± 2.8

0.050

ASA class

0.914

 I

24 (46%)

23 (45%)

 II

28 (54%)

28 (55%)

Smoking history

0.257

 Never smoker

28 (54%)

28 (55%)

 Current smoker

11 (21%)

16 (31%)

 Former smoker

13 (25%)

7 (14%)

Preoperative hemoglobin (g/dl)

13.2 ± 1.3

13.2 ± 1.3

0.820

Preoperative FEV₁ (% predicted)

100.6 ± 16.3

103.8 ± 19.0

0.356

Preoperative FVC (% predicted)

98.0 ± 12.6

100.2 ± 13.7

0.391

Preoperative PaO₂ (mmHg)

92 ± 14

93 ± 11

0.798

 Aspirin

7 (14%)

8 (16%)

0.749

 COX inhibitor other than aspirin

2 (4%)

4 (8%)

0.437

 Calcium antagonist

12 (23%)

11 (22%)

0.854

 ACE inhibitor

0 (0%)

1 (2%)

0.495

 ARB

10 (20%)

13 (26%)

0.446

 Beta blocker

2 (4%)

3 (6%)

0.678

 Diuretics

2 (4%)

6 (12%)

0.160

 OHA

7 (14%)

9 (18%)

0.558

 Clopidogrel

0 (0%)

2 (4%)

0.243

 Statin

8 (15%)

14 (28%)

0.135

 Steroid

0 (0%)

2 (4%)

0.243

 Prostacyclin

0 (0%)

1 (2%)

0.495

Anesthesia time (min)

222 ± 47

211 ± 46

0.243

Infused crystalloid (ml)

940 ± 505

784 ± 378

0.079

Infused colloid (ml)

117 ± 192

99 ± 167

0.600

Urinary output (ml)

192 ± 159

201 ± 152

0.769

Estimated blood loss (ml)

160 ± 89

143 ± 75

0.299

Extent of operation

0.428

 Lobectomy

41 (79%)

44 (86%)

 Segmentectomy

7 (13%)

3 (6%)

 Wedge resection

4 (8%)

4 (8%)

Mainly resected lobe

0.747

 Right upper lobe

16 (31%)

15 (29%)

 Right middle lobe

3 (6%)

7 (14%)

 Right lower lobe

13 (25%)

12 (23%)

 Left upper lobe

10 (19%)

8 (16%)

 Left lower lobe

10 (19%)

9 (18%)