The investigators test the hypothesis that ease of insertion, oropharyngeal leak pressure, fiberoptic position and ease of gastric tube placement differ between the GuardianTM and the LMA SupremeTM in paralyzed, anesthetized patients.
The GuardianTM is a new extraglottic airway device which brings together features of both the LMA ProSealTM (high seal cuff, gastric access and bite block - to facilitate ventilation, airway protection and airway obstruction, respectively) and the LMA UniqueTM (single use - prevention of disease transmission). In the following randomized, non-crossover study, the investigators test the hypothesis that ease of insertion, oropharyngeal leak pressure, fiberoptic position and ease of gastric tube placement differ between the GuardianTM and the LMA SupremeTM in paralyzed, anesthetized patients.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
120
ease of insertion, oropharyngeal seal pressure, fiberoptic position, ease of ventilation, occult blood, gastric insertion
ease of insertion, oropharyngeal seal pressure, fiberoptic position, ease of ventilation, occult blood, gastric insertion
Universitätsklinik für Anästhesie
Innsbruck, Tyrol, Austria
efficacy of oropharyngeal seal pressure
this will be measured over the full range of cuff volumes (0-40 ml) and at an intracuff pressure of 60 cm H2O
Time frame: 5 min
anatomic position
this will be determined fiberoptically via the airway tube over the full range of cuff volumes and at an intracuff pressure of 60 cm H2O
Time frame: 5 min
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