We have compared the laryngeal tube (LT) and ProSeal laryngeal
mask (PLMA) in 80 Jemale patients Jor the success rate oj insertion, gas
leak pressure ,pulmonary ventilation and the incidence ojgastric insufflation.
In a randomized clinical study, the laryngeal tube and ProSeallaryngeal
mask were inserted after induction oj anaesthesia and neuromuscular
block. The cuffs were inflated until. the intraculf pressure reached 60
! cm H20. We measured adequacy oJ ventilation and the minimum airway '[ pressure at which gas leaked around the cuff. The presence or absence oj
gastric insuiflation, was studied at an inflation pressure oj 20 cm H20.
Statistical analysis was with paired t test (parametric data), and Kruskal-WaUis
test, Mann-Whitney rank sum test, and chi-square test (nonparametric
data). P< 0.05 was considered significant.
J
In all cases, both airway devices were inserted successfully.lt was
possible to ventilate through the laryngeal tube and the ProSeal laryngeal
mask in all patients. Peak airway pressure (P