Abstract:
A randomized clinical trial for comparison of two techniques of insertion of
Proseal laryngeal mask airway in adults – index finger insertion technique versus 90
degree rotational technique.
Introduction
Proseal laryngeal mask airway (PLMA) is not easy to insert due to its larger
cuff especially in Indian population .The 90 degrees rotation technique for inserting
the PLMA (which does not involve use of introducer or aids or finger insertion) is
reported to be better than the standard index finger insertion technique to improve the
insertion success rate.
The objective of this study was to evaluate and compare the ease of insertion
through the 90 degree rotational and standard insertion technique in terms of number
of attempts, duration of insertion and occurrence of complications.
Methods
120 adult patients were allocated to either a standard technique or a rotation
technique group with 60 patients in each group. In the rotation technique group the
entire cuff of the PLMA was placed in the patient's mouth in a midline approach
without finger insertion, rotated 90 degrees counter clockwise around the patient's
tongue, advanced and then rotated back until resistance was felt. The outcomes
measured were success rate at first insertion, insertion time, hemodynamic changes
and complications.
