Measuring Upper Airway Cross Sectional Areas During Residual Neuromuscular Blockade and After Reserval

In our study, the investigators sought to answer the question of how the retroglossal pharyngeal areas measured after extubation of patients compare to baseline (before muscle relaxation) values. The investigators also investigated how these areas change as a function of TOF ratios measured at extubation, thus looking for a correlation between residual muscle relaxant effect and airway area.