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Table 3 FB classification via the end of the ventilation tube opening of SaCoVLM™ or i-gel and glottic exposure grading under the SaCoVLM™ and flexible bronchoscopy in group S

From: Comparison of SaCoVLM™ video laryngeal mask-guided intubation and i-gel combined with flexible bronchoscopy-guided intubation in airway management during general anesthesia: a non-inferiority study

 

SaCoVLM™

FB classification

group(n = 60)

i-gel

FB classification

group(n = 60)

P value

SaCoVLM™

SaCoVLM™ classification

group(n = 60)

Grade 1

0 (0)

3 (5%)

P = 0.18

4 (7%)

Grade 2

4 (7%)

7 (12%)

8 (13%)

Grade 3

14 (23%)

9 (15%)

21 (35%)

Grade 4

42 (70%)

41 (68%)

27 (45%

  1. Brimacombe and Berry flexible bronchoscopy (FB classification) is as follows: Grade 1: no visualization of the glottic entrance; Grade 2: visualization of glottis and the lingual surface of epiglottis; Grade 3: visualization glottis and the laryngeal surface of the epiglottis. Grade 4: full visualization of the glottis only
  2. SaCoVLM™ grading (SaCoVLM™ classification):Grade 1: visualization of the lateral part of the right aryepiglottic fold and part of the laryngeal inlet, and SpO2 > 98% after VLM ventilation; Grade 2: visualization of the bilateral aryepiglottic fold and part of the laryngeal inlet and SpO2 > 98% after VLM ventilation; Grade 3: visualization of all laryngeal inlet and posterior glottis;Grade 4: visualization of the whole glottis