Comparison of Weight-based Versus External Ear-size Based Technique for Selection of Laryngeal Mask Airway in Pediatric Surgical Patients.

"The Laryngeal Mask Airway (LMA) is one of the devices used to maintain airway during general anesthesia. Its appropriate size is selected according to patients body weight as recommended by the manufacturer.~However its appropriate size can also be selected via several other methods and one of them is patients external ear size. In this study the investigators will compare external ear size based method for LMA selection with the standard weight based method for LMA size selection.~Vertical Ear length: will be measured from the most dependent portion of the lobule to the furthest portion of the auricle.~Horizontal Ear length (width): from the tragus to the furthest part of the helix horizontally.~Dimension(cm2): Vertical length (L) × Horizontal length (width-W)~LMA Size LMA Cuff Length (cm) corresponding to vertical ear length.~LMA Cuff Width (cm) corresponding to horizontal ear width."