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Table 1 Demographic characteristics and intraoperative data

From: Effects of positive end-expiratory pressure on regional cerebral oxygen saturation in elderly patients undergoing thoracic surgery during one-lung ventilation: a randomized crossover-controlled trial

 

Patients (n = 36)

Age, mean ± SD, %,years

65.86 ± 4.33

Sex (male/female), [n (%)]

23(63.89)/13(36.11)

Height, mean ± SD, %, cm

162.03 ± 7.11

Weight, mean ± SD, %, Kg

65.14 ± 7.98

Lesion of the lung (left/right), [n (%)]

13(36.11)/23(63.89)

ASA (II/III), [n (%)]

29(80.56)/7(19.44)

FEV1, mean ± SD, %

109.94 ± 20.36

FEV1/FVC, mean ± SD, %

99.79 ± 8.26

rSO2, mean ± SD, %

69.46 ± 5.78

Duration of surgery, mean ± SD, %, min

131.17 ± 39.85

Duration of TLV, mean ± SD, %, min

50.89 ± 14.80

Duration of OLV, mean ± SD, %, min

117.89 ± 37.02

Preoperative Hb, mean ± SD, g/L

120.89 ± 13.06

Postoperative Hb, mean ± SD, g/L

117.25 ± 12.98

Intraoperative infusion volume (mL),median(IQR)

2000.0(1500.0,2000.0)

Urine output, mean ± SD, %, mL

340.3 ± 118.8

Estimated blood loss, mean ± SD, %, mL

26.8 ± 8.0

  1. Notes: Data are presented as mean\( \pm \)standard deviation (SD), counts (proportion), or median(IQR). Abbreviations: ASA, American Society of Anesthesiologists; FEV1, forced expiratory volume in one second; FVC, forced vital capacity; TLV, two-lung ventilation; OLV, one-lung ventilation; Hb hemoglobin