Comparison of Clinical Performance of the Guardian Laryngeal Mask With LMA Proseal

Comparison of Clinical Performance of the Guardian Laryngeal Mask With LMA Proseal - A Perspective, Randomized，Blind Study

To compare insertion characteristics of 2 different supraglottic devices (Guardian LMA and Proseal LMA) and to observe any associated complications.

Condition:

The study focuses on the comparison of the ease of insertion, oropharyngeal leak pressure, fiberoptic position and ease of gastric tube placement between the Guardian LMA and the LMA Proseal in paralyzed, anesthetized patients.

Device: Guardian Laryngeal Mask Device: LMA Proseal

Study Type:

Interventional

Study Design:

Allocation: Randomized Endpoint Classification: Efficacy Study Intervention Model: Parallel Assignment Masking: Single Blind (Subject)

Inclusion Criteria:• Ambulatory patients scheduled to undergo knee arthroscopy, transurethral resection of bladder tumor, hand, gynecological and general surgical under a short general paralysed anesthesia of less than 2 hours (American Society of Anesthesiologists physical status I-II)

• 18 to 65 years of age
• Mallampati score less than 3
• thyromental distance more than 6.5 cm
• mouth opening more than >2.5 cm
• a body mass index less than 35 kg/m2;

Exclusion Criteria:

• Body weight 50 Kg
• Pregnancy
• Difficult airway
• Recent history of upper respiratory tract infection and sore throats
• A history of esophageal reflux disease
• ENT surgery
• Laparoscopic surgery
• Inability to understand the Study Information Sheet and provide a written consent to take part in the study.