Table 2 Pulmonary variables during the operation.

From: Changes in diaphragmatic excursion and lung compliance during gynaecologic surgery: open laparotomy versus laparoscopy—a prospective observational study

 

Group

T1

T2

T3

P

Group × time

Intergroup

PaO2 on FiO2 0.5 (mmHg)

Open

244.7 ± 69.3

217.2 ± 41.0

229.7 ± 26.9

0.047

0.634

Laparoscope

240.2 ± 52.4

204.6 ± 40.2

210.6 ± 39.0

PaCO2 (mmHg)

Open

36.1 ± 4.5

37.5 ± 10.4

39.1 ± 3.7

0.640

0.989

Laparoscope

35.8 ± 4.1

40.7 ± 4.7

39.3 ± 5.5

PIP (mmH2O)

Open

10.9 ± 2.4

13.1 ± 1.4

12.9 ± 1.8

 < 0.001

 < 0.001

Laparoscope

12.8 ± 2.0

25.5 ± 2.8

15.9 ± 2.1

PP (mmH2O)

Open

10.4 ± 2.3

12.2 ± 1.5

11.7 ± 1.5

 < 0.001

 < 0.001

Laparoscope

12.4 ± 2.0

23.4 ± 2.0

15.3 ± 2.5

Dynamic lung compliance (ml/mmH2O)

Open

37.4 ± 7.4

30.9 ± 4.8

31.8 ± 4.9

 < 0.001

 < 0.001

Laparoscope

33.9 ± 5.0

17.2 ± 2.2

27.5 ± 3.2

Static lung compliance (ml/mmH2O)

Open

39.1 ± 7.8

33.4 ± 6.0

34.6 ± 5.6

 < 0.001

 < 0.001

Laparoscope

35.2 ± 6.1

18.1 ± 3.3

29.0 ± 4.7

  1. Data are expressed as mean ± standard deviation.
  2. T1 = after intubation, T2 = 90 min after the incision, T3 = at the end of the operation with recovery of muscle relaxation under mechanical ventilation, FiO2 = fraction of inspired oxygen, PIP = peak inspiratory pressure, PP = plateau pressure. PIP, PP, dynamic and static lung compliance measured by an anaesthesia machine (PrimusⓇ, Dragger, Lubeck, Germany).
Back to article page