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Table 2 DLT intubation data: Assessment of difficulty and complications. Data are presented as median (25th - 75th percentile) or number (percentage)

From: Videolaryngoscopy versus direct laryngoscopy for double-lumen endotracheal tube intubation in thoracic surgery - a randomised controlled clinical trial

ParameterDL
(n 31)
GVL
(n 34)
Mann Whitney U-test
(p-Value)
time to successful intubation (s)74 (58–94)93 (63–160)0.044*
Cormack-Lehane score n (%):
 I°23 (74%)33 (97%)0,008*
 II°7 (23%)1 (3%)
 III°1 (3%)0 (0%)
 IV°0 (0%)0 (0%)
OELM maneuver n (%):
 yes14 (45%)11 (32%)0,293
 no17 (55%)23 (68%)
first-attempt success n (%):
 yes28 (90%)29 (85%)0,287
 no3 (10%)5 (15%)
DLT intubation attempts n (%):
 128 (90%)29 (85%)0,497
 22 (7%)2 (6%)
 31 (3%)1 (3%)
  > 30 (0%)2 (6%)
SpO2 < 85% n (%):
 yes2 (6%)2 (6%)0,925
 no29 (94%)32 (94%)
Bronchospasm n (%):
 yes2 (6%)0 (0%)0,135
 no29 (94%)34 (100%)
Cardiac arrhythmia n (%):
 yes0 (0%)0 (0%)1,000
 no31 (100%)34 (100%)
blood on device n (%):
 yes4 (13%)3 (9%)0,599
 no27 (87%)31 (91%)
Correct DLT position n (%):
 yes24 (77%)18 (53%)0,041*
 no7 (23%)16 (47%)
Carina trauma n (%):
 yes0 (0%)1 (3%)0,340
 no31 (100%)33 (97%)
Lip trauma n (%):
 yes0 (0%)0 (0%)1,000
 no31 (100%)34 (100%)
Dental trauma n (%):
 yes0 (0%)0 (0%)1,000
 no21 (100%)26 (100%)
Enamel fractures n (%):
 yes0 (0%)0 (0%)1,000
 no21 (100%)26 (100%)
  1. *Statistically significant