A comparison of SaCo VLMTM video laryngeal mask airway with the I-gel supraglottic airway during airway management in patients undergoing elective surgery.
ASA classification I~III, age 18~65 y/o, BMI 18~30kg/m2, elective surgery, surgery duration < 2 hours, supine position, general anesthesia with laryngeal mask airway insertion
Smoking, betel nuts use, any known anatomical variation or disease of facial or airway structure, anticipated difficult airway, limited mouth opening distance or neck motility, loosening teeth, gastroesophageal reflux history, ongoing upper airway infection or inflammation symptoms
Parallel
a native video image system
DeviceThe visualization of the glottic structures through the SaCoVLM™ imaging system is graded as follows: Grade1: Visibility of the lateral portion of the right epiglottic fold and part of the laryngeal inlet. Grade 2: Visibility of both epiglottic folds and part of the laryngeal inlet. Grade 3: Visibility of the laryngeal inlet and part of the vocal cords. Grade 4: Visibility of the entire vocal cords.
Fiberoptic bronchoscope
DeviceThe position of the i-Gel is checked using a fiberoptic endoscope
glottic visualization grades by fiberoptic exam assessment
Grade 1: vocal cords were not visualizedGrade 2: vocal cords and anterior epiglottis were visualizedGrade 3: vocal cords and posterior epiglottis were visualized Grade 4: vocal cords only were visualized
Intra-operative effectiveness
Secondary outcomes were evaluated by oropharyngeal sealing pressure, first attempt success rate, insertion time
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