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. 2020 Aug 20;35(5):1149–1157. doi: 10.1007/s10877-020-00582-z

Table 1.

Characteristic’s patients

Variable All patients
n = 60
PEEPINCREMENTAL
n = 30
PEEPDECREMENTAL
n = 30
p value
Age 68 ± 9 66 ± 8 67 ± 9 0.571
BMI 27.5 ± 5.5 27.0 ± 6.2 27.8 ± 5.5 0.576
ASA score 0.506
 II 11 4 7
 III 49 26 23
Sex (M/F), n 40/20 18/12 22/8 0.411
Surgery side (L/R) 29/31 13/17 15/15 0.312
Type of surgery 0.061
 Lobectomy 55 30 25
 Wedge resection 5 5
Duration of MV (min) 212 [175–255] 218 [195–255] 205 [175–255] 0.57
Duration of OLV (min) 192 [166–240] 195 [180–240] 190 [145–240] 0.49
Comorbidities
 Diabetes, n (%) 8 (13) 4 (13) 4 (13) 0.999
 Hypertension, n (%) 35 (50) 10 (33) 16 (53) 0.192
 Vascular disease, n (%) 20 (33) 10 (33) 10 (33) 0.999
 COPD, n (%) 10 (16) 6 (20) 4 (13) 0.731
Preoperative spirometry
 FVC (% predicted) 104 [93–117] 99 [79–117] 107 [96–118] 0.204
 FEV1 (%) 96 [79–109] 90 [70–105] 105 [86–116] 0.061
 FEV1/FVC 75 ± 12 77 ± 16 74 ± 9 0.75
 KCO (% predicted) 74 [62–93] 69 [58–80] 86 [67–98] 0.086
 ERV (% predicted)

BMI body mass index, MRC Medical Research Council Scale, MV mechanical ventilation, OLV one lung ventilation, VC vital capacity, FEV1 forced expiratory volume in the 1st second, FVC forced vital capacity, MEF maximal expiratory flow, ERV expiratory reserve volume

p values are referred to comparison between PEEPINCREMENTAL and PEEPDECREMENTAL group