The Comparison of Sub-mandibular One-handed Grip Ventilation Technique to CE Technique for Reducing Air Leak in Patient with Potential Difficult Mask Ventilation
Sakaroonchai J, MD1, Tirapat N, MD1, Curry P, MD1
Affiliation : 1 Department of Anesthesiology, Faculty of Medicine, Thammasat University Hospital, Thammasat University, Pathumthani, Thailand
Objective : The most common reason for failure to ventilate with the one-handed CE technique is air leak in patients with difficult
mask ventilation. Sub-mandibular one-handed grip is the alternative technique that minimizes air leak. The aim of the study was to
compare exhaled volume in sub-mandibular one-handed grip technique to CE technique.
Materials and Methods : Thirty patients who potential air leak during mask ventilation undergoing elective surgery were randomly
divided into two groups. Patients in Group 1 were given mask ventilation with CE technique before switching to sub-mandibular
one-handed grip technique and patients in Group 2 were given mask ventilation with sub-mandibular one-handed grip technique
before switching to CE technique. Exhaled tidal volume, peak airway pressure, heart rate, pulse oximetry were recorded.
Results : Sub-mandibular one-handed grip technique showed lower air leak than the CE technique statistically significant (2.9+1.9
ml/kg vs. 3.9+2.5 ml/kg, p = 0.01). Neither patient had experienced oxygen desaturation nor had a change in heart rate in the present
study.
Conclusion : The sub-mandibular one-handed grip technique is more effective in reducing air leaks than one-handed CE technique
for patients with potential difficult mask ventilation.
Keywords : Difficult mask ventilation, Air leaks during ventilation, Sub-mandibular one-handed grip technique, CE technique
