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Table 2 Glottis exposure classification

From: Preliminary evaluation of SaCoVLM™ video laryngeal mask airway in airway management for general anesthesia

Classification

Grade 1

Grade 2

Grade 3

Grade 4

SaCoVLM™ (cases)

55 (55%)

23 (23%)

14 (14%)

8 (8%)

Fibreoptic bronchoscopy (cases)

1 (1%)

10 (10%)

14 (14%)

71 (71%)

Adjustment of SaCoVLM™ (cases)

0 (0%)

17 (17%)

33 (33%)

50 (50%)

  1. SaCoVLM™ classification is obtained by camera observation through the SaCoVLM™ visual channel
  2. Grade 1: visualization of the lateral part of the right aryepiglottic fold and part of the laryngeal inlet, and the ventilation was good
  3. Grade 2: visualization of the bilateral aryepiglottic fold and part of laryngeal inlet, and the ventilation was good
  4. Grade 3: visualization of all laryngeal inlet and posterior glottis
  5. Grade 4: visualization of the whole glottis
  6. Fibreoptic bronchoscopy classification is obtained by placing the Fibreoptic bronchoscopy in the distal opening of the SaCoVLM™ vent
  7. Grade 1: visualization of no glottis
  8. Grade 2: visualization of glottis and the lingual surface of epiglottis;
  9. Grade 3: visualization glottis and the laryngeal surface of the epiglottis
  10. Grade 4:visualization of glottis