Ambu AuraGain was inserted in 50 patients

Proseal LMA vs Air-Q LMA vs Ambu AurGain LMA

The Proseal Laryngeal Mask Airway (p-LMA) has a dual cuff modified to provide better sealing, and a drainage tube for gastric tube insertion. These features attribute in increasing the safety of the p-LMA when used with positive pressure ventilation.

Proseal LMA

Air-Q LMA has a self-pressurizing cuff which inflates to adequate pressure during positive pressure ventilation thus eliminating the adverse effects of cuff over inflation associated with the use of Supraglottic airway device with an inflatable cuff.

Air-Q LMA

The AmbuAuraGain™ is a disposable, preformed second generation SAD, anatomically curved with integrated gastric access and intubation capability, taking patient safety and airway management efficiency to a new level.

Ambu AuraGain LMA

Comparison Between Three Supraglottic Airway Devices ProSeal Laryngeal Mask Airway, Air-Q LMA and Ambu AuraGain

"A Randomized Controlled Study Comparing ProSeal Laryngeal Mask Airway, Air-Q LMA and Ambu AuraGain in Mechanically Ventilated Patients"

Time of insertion:
The time interval(seconds) elapsed from insertion of SAD between the dental arches until the confirmation of successful ventilation determined by chest wall movement,auscultation of breath sounds and square wave capnographic curves and no oropharyngeal leak with peak airway pressure >/= 20 cm of H2O.The time will be measured with the help of stop watch.

Attempt will be defined as insertion of the LMA between the teeth until the LMA will be deemed to be correctly placed and its cuff will be properly inflated.
A maximum of three attempts will be allowed. An attempt will be considered unsuccessful if -
Failure to negotiate beyond oropharynx.
Significant Leak present (both audible and auscultatory)
Inadequate ventilation to be confirmed by Et-CO2 >45 mmHg. Failure of a device is identified as three unsuccessful insertion attempts or inadequate ventilation.
After failure of three attempts intubation will be performed using conventional rigid laryngoscopy and case will be recorded as failed.

The ease of insertion of device based on VISUAL ANALOGUE SCALE will be recorded.(0=easiest insertion of device,10=most difficult insertion)

The airway sealing pressure is measured at cuff pressure of 60 cmH2O by closing the expiratory valve of the circle system at a fixed gas flow of 3L/min and recording the airway pressure at which equilibrium is reached. At this stage a leak at mouth and stomach is ascertained.

Glottic viewing will be assessed by insertion of the fibreoptic bronchoscope through the airway channel of the respective SGA devices.

A maximum of two attempts were allowed for gastric tube placement. Its correct placement confirmed by injection of air and epigastric auscultation or aspiration of gastric contents. Failure was defined as inability to advance the orogastric tube into the stomach within two attempts.

Note for any Blood staining of the device and tongue, lip and dental trauma.
Incidence of Laryngospasm in intra operative period will be noted and managed accordingly.
Sore Throat, Dysphagia and Hoarseness of voice.
In post-operative period an investigator blinded to study, will ask the patients about the signs of:
Sore throat
Dysphagia.
Hoarseness of voice.
Sore throat will be assessed to a score of 0-3:
0: No pain
Mild pain
moderate pain
Severe pain
Dysphagia and hoarseness in voice was assessed on a score of 0-1:
0: Absent
1: Present

Preinsertion ,0,1,3,5 and 10 minutes post insertion

Dr.Mahak Mehta

POST GRADUATE STUDENT

Methods:This prospective, randomised, single-blind study was conducted on 150 American Society of Anesthesiologists physical status I-II, randomly allocated into 3 groups, undergoing elective surgical procedures under general anaesthesia.PLMATM, Air-Q® and Ambu AuraGainTM appropriate for weight or/and height was inserted.Primary outcome measure was insertion time.Airway sealing pressure,ease of insertion, number of attempts,overall success rate, glottis view,number of attempts of gastric tube placement , hemodynamic parameters and complications were also recorded.

trismus/hypoxia

Comparison Between Three Supraglottic Airway Devices ProSeal Laryngeal Mask Airway, Air-Q LMA and Ambu AuraGain

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