Clinical Observation Of Tracheal Tube When Inserted In Two Different Orientations Through Cookgas Air-Q Intubation Laryngeal Mask Airway

Objective:To compare the success rates of two different directions of tracheal tube when inserted through the Cookgas Air-Q intubation laryngeal mask airway(CILA)and evaluate the side effects.Methods:One hundred adults of Mallampati class 3 or 4,ASA physical status I & II,who were scheduled for selective surgeries under general anesthesia requiring tracheal intubation were enrolled.All of the patients were randomly divided into two groups(N and R): group N adopted the conventional way of loading the tracheal tube by inserting the tube with its natural curve following CILA and group R adopted the reverse orientation compared with group N.Intubation success rate and time of the intubation process were noted along with post operative sore throat.Results:The CILA was successful inserted in all patients(100%).The first-attempt success rate was 72.00% in Group N in contrast with Group R 88.00%.There was significant decreased in sore throat in Group R(6%)compared with Group N(10%).At the time of endotracheal intubation,there was a significant difference in HR?SBP?DBP between the two groups(P<0.05)?Intubation Time(mean±SD)in Group N was 18.7±1.1 seconds and in Group R was 18.5±1.3seconds(P>0.05)Conclusions:Reverse loading the tube when inserted through CILA was of a higher success in the first attempt in Mallampati class 3 or 4 patients.But the total success rate wasn't significantly different between two groups.Rotating the tracheal tube tip by 180 degrees also lowered the postoperative sore throat rate.