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Comparison of Standard Versus 90° Rotation Technique for LMA FlexibleTM Insertion (NCT03028896)

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.
  • Procedure: 90° rotational technique
    the LMA FlexibleTM was rotated counter-clockwise through 90°
    Ages eligible for Study
    18 Years to 65 Years
    Genders eligible for Study
    Accepts Healthy Volunteers
    Inclusion Criteria:
    • American Society of Anesthesiologists class I - II
    • Scheduled for elective breast surgery under general anaesthesia using LMA FlexibleTM
    Exclusion Criteria:
    • known difficult airway
    • mouth opening less than 2.5 cm
    • limited extension of neck
    • recent sore throat
    • gastroesophageal reflux disease
    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.
    01 April, 2015
    18 January, 2017
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