Comparisons of clinical performance of Guardian laryngeal mask with laryngeal mask airway ProSeal

The Guardian LaLange Alma Square Way (G-LMA) is a new silicon disposable glottal device with a cuff pilot valve with a drainage outlet and pressure indicator. The purpose of this study was to compare the clinical symptoms of this laryngeal mask airway with ProSeal laryngeal mask airway (P-LMA). This prospective randomized trial included adult patients with ASA Grade I and II who underwent selective surgery under full venous anesthesia and needed a supine posture. Patients were randomly divided into two groups of 40 each. G-LMA and P-LMA were used for groups G and P respectively. The cuff of each device is inflated to 60 cm H 2 O. The main results, a comparison of the airway sealing pressure, successful insertion, insertion time, ease of insertion, 60 cuff inflated air volume cm H2 O, secondary result of comparing the efficacy and safety of two devices concerning pressure . Measurement values, gastric tube insertion trial, gastroduodenal insertion time, fiber laryngeal image and postoperative throat incidence. Airway sealing pressure at 60 cm H 2 O at G - LMA cuff pressure was significantly higher than that of P - LMA (p = 0.04). The first successful attempts of the two groups were equivalent (p = 000). The insertion time of G-LMA was significantly shorter than that of P-LMA (p <0.0001). The first successful attempt to insert a gastric tube into both groups was comparable (p = 0.431). G-LMA gastric tube insertion time was shorter than P-LMA (p <0.0001). The amount of air expanded to 60 cmH 2 O in the cuff is larger in G - LMA than in P - LMA (<0.0001). The measured values ​​of internal pressure at 30, 60, 90 and 120 minutes were comparable (p = 0.823, 0.182, 0.870, 0.658). There was no difference in ease of insertion (p = 0.60), and the fiber position of the airway device was comparable (p = 0.83). In addition, blood staining (p = 00), throat pain and dysphagia in the two groups were comparable at 1, 2 and 24 hours (p = 00). The Guardian laryngeal airway is associated with high airway sealing pressure and the device and the insertion of the stomach tube are faster. Clinical Trial.gov ID: NCT 02063516. Date: June 2013

There was no statistical difference between the two groups (p = 0.951) as to the success of insertion of the second generation glottic upper respiratory tract. The laryngeal mask insertion time was significantly shorter in the i-gel group than in the Laryngeal Mask Airway Classic group (11.6 ± 4 seconds versus 13.1 ± 8 seconds). For the laryngeal mask airway classical group, the i-gel group had significantly better glottic eyesight score than the laryngeal mask airway classical group (p = 0.001). From the fiber point of view, there are no signs of methylene blue dye at any point in the two groups. Furthermore, there was no difference in response to any pain at 24 hours after surgery (p = 0.752).

The Guardian LaLange Alma Square Way (G-LMA) is a new silicon disposable glottal device with a cuff pilot valve with a drainage outlet and pressure indicator. The purpose of this study was to compare the clinical symptoms of this laryngeal mask airway with ProSeal laryngeal mask airway (P-LMA). This prospective randomized trial, undergoing elective surgery under full intravenous anesthesia, including adult patients ASA grade I and II required the supine position. Patients were randomly divided into two groups of 40 each. G-LMA and P-LMA were used for groups G and P respectively. The cuff of each device is inflated to 60 cm H 2 O. Airway sealing pressure at 60 cm H 2 O at G - LMA cuff pressure was significantly higher than that of P - LMA (p = 0.04). The first successful attempts of the two groups were equivalent (p = 000). The insertion time of G-LMA was significantly shorter than that of P-LMA (p <0.0001). G-LMA gastric tube insertion time was shorter than P-LMA (p <0.0001)