A Multicenter Study Comparing the ProSeal  TMand Classic  TMLaryngeal Mask Airway in Anesthetized, Nonparalyzed Patients

Abstract

In anesthetized, nonparalyzed patients, the LMA is easier and quicker to insert, but the PLMA forms a better seal and facilitates easier and quicker orogastric tube placement. The incidence of total intraoperative complications and postoperative sore throat are similar.

Suction catheter guided insertion of the ProSeal™ laryngeal mask airway is superior to the digital technique

“…Our success rate for the digital technique was similar to previous studies. 14,20 The two main causes of failed insertion with the digital technique are impaction with the back of the mouth and glottic inlet. 14,17,19,25 The SC-guided technique is more frequently successful because it directs the distal cuff around the oropharyngeal inlet and toward the esophagus; however, impaction can still occur, albeit rarely, as the SC can enter the glottic inlet and the SC may be insufficiently rigid to guide the distal cuff around the oropharynx, where the oropharyngeal axis is < 90°.…”

“…6,[14][15][16][17][18][19][20][21][22][23] The distribution of data was determined using Kolmogorov-Smirnov analysis. 24 Data were compared using a paired t test for parametric data and Chi-squared test for non-parametric data.…”

-gel™ in Ambulatory Surgery: A Comparison with LMA—ProSeal™ in Paralyzed Anaesthetized Patients

“…The principle new features are a modified cuff and a drain tube. PLMA is preferable whenever a better seal, better airway protection and access to the gastrointestinal tract are required [21,23,24].…”

Glottic insertion of the ProSealTM LMA occurs in 6% of cases: A review of 627 patients

“…The incidence of an open esophagus has been quoted to range between 3 to 9%. 19,20 Both "open" and "closed" views of the esophagus are shown in Figure 2. When the esophagus is "open" and a soap membrane is positioned on the drain tube the membrane shows large up and down oscillations.…”