The 90° rotation technique is known to improve the success rate of conventional LMA but its effect in LMA FlexibleTM is not known. We tried to find if 90° rotation technique could increase the first attempt success rate of the insertion of LMA FlexibleTM compared to standard technique.
One hundred and sixteen adult patients undergoing breast surgery were randomized to the two insertion techniques. The ease of insertion was assessed by the success rate at the first attempt. Heart rate and mean blood pressure were recorded 1 min before and 1 min after insertion. Postoperative complications were checked.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
TRIPLE
Enrollment
132
the LMA FlexibleTM was rotated counter-clockwise through 90°
First Attempt Success Rate
the first attempt success rate of insertion of LMA FlexibleTM
Time frame: at induction
Insertion Time
time from passed mouth of the device to the effective ventilation after inflation of the cuff
Time frame: at induction
Oropharyngeal Leak Pressure
audible leak during manual ventilation at mouth
Time frame: at induction
Number of Participants With Blood Staining on the Laryngeal Mask Airway
Number of Participants with blood staining on the laryngeal mask airway.
Time frame: post op 1min
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