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Table 2 One lung ventilation data: Time for intubation, preparation of the devices, bronchoscopic control. Data are presented as median [IQR] or numbers (percentage)

From: Comparison of left double lumen tube and y-shaped and double-ended bronchial blocker for one lung ventilation in thoracic surgery—a randomised controlled clinical trial

Parameter

DLT

(n = 38)

EZB

(n = 36)

Mann Whitney U-test (P-Value)

Primary endpoint (Total time)

Total time for one lung ventilation (s) (preparation/intubation/isolation)

234 [207 to 294]

298 [243 to 369]

0.007*

Secondary endpoints (Time subsections)

Preparation time (s)

(device + bronchoscope)

76 [64 to 111]

119 [95 to 149]

 < 0.001*

Time for successful intubation (s)

69 [55 to 97]

47 [35 to 65]

 < 0.001*

Time for bronchoscopic position check (s)

50 [29 to 94]

85 [45 to 113]

0,107

Time for correct placement (s)

5 [0 to 38]

22 [0 to 68]

0,051

Time for bronchoscope preparation (s)

28 [19 to 35]

23 [20 to 32]

0.349

Time for device preparation (s)

49 [41 to 70]

97 [74 to 117]

 < 0.001*

Time for one lung ventilation without preparation time (s)

140 [112 to 222]

165 [125 to 203]

0.479

Correct device position after intubation n (%):

 yes

27 (71%)

16 (44%)

0.021*

 no

11 (29%)

20 (56%)

 

Method of intubation n (%):

 DL

29 (87%)

28 (86%)

0.927

 GVL

9 (13%)

8 (14%)

 

Change method of intubation n (%):

 yes

3 (8%)

2 (6%)

0.691

 no

35 (92%)

34 (94%)

 

First attempt success n (%):

 yes

29 (76%)

32 (89%)

0.158

 no

9 (24%)

4 (11%)

 

Intubation attempts n (%):

 1

27 (71%)

29 (81%)

0.32

 2

10 (26%)

7 (19%)

 

 3

0 (0%)

0 (0%)

 

  > 3

1 (3%)

0 (0%)

 
  1. *Statistically significant