The investigators group has performed a number of studies on novel airway devices, including an observational study on the performance of a new supraglottic airway named Baska mask. In this new study the investigators wish to determine which criteria best predict the correct size of the Baska mask to be used in male patients
Our observational study of the performance of the Baska mask suggests that this novel supraglottic airway has promise as an alternative to the current standard device, the laryngeal mask airway (LMA). Our results indicate that while the manufacturer weight criteria work reasonably well in females this may not be the case in males. The investigators wish to determine how well the manufacturer recommended sizing criteria for the Baska mask work in males. This study is designed to determine which criteria best predict the correct size Baska mask to use in male patients. In addition the investigators will monitor the performance and safety of this device (insertion success rate, seal pressures, time to and ease of insertion, failure rate, complications etc)
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
50
use of Baska mask as component of standard general anaesthetic
Galway University Hospitals
Galway, Galway, Ireland
Determination of the best predictor for successful Baska mask size
We will evaluate the correlation between certain patient characteristics (including, but not limited, to actual and ideal body weight; height) and the size of the Baska mask used successfully in each patient.
Time frame: From the moment of preoperative assessment until the moment of mask placement, an expected average of 3 hours.
insertion success rate of the device
Time frame: within 30 min of anaesthesia commencement
device airway leak pressure
Time frame: within 30 min of anaesthesia commencement
device insertion time
the time from the moment the device is touched until successful ventilation is achieved or device is removed.
Time frame: within 30 min of anaesthesia commencement
ease of insertion of device
we will use 10cm visual analogue scale
Time frame: within 30 min of anaesthesia commencement
complications
Complications during insertion, maintenance and removal and in the postoperative period (in PACU and next day follow up) List of complications (not exhaustive): desaturation episodes, loss of airway with need to manipulate mask/switch to alternative device, lip/teeth damage, regurgitation, aspiration, laryngospasm, blood staining on mask removal)
Time frame: from the moment anaesthesia commenced up to the first postoperative day, an expected average of 30 hours.
Patient comfort
We will record throat pain, dysphonia and dysphagia using 10 point verbal rating scale.
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Time frame: from the moment patient awake up to third postoperative day, an expected average of 80 hours.