METHODS	After the routine intravenous anesthesia induction , the PLMA and the SLMA were inserted randomly in sequence into each patient and inflated to an intracuff pressure of 60 cm H ( 2 ) O ( 1 cm H ( 2 ) O = 0.098 kPa ) , airway seal pressure and lung ventilation satisfaction were evaluated , and fiberoptic ( FOB ) scores of the cuff anatomic position were measured .\