Comparison of Pharyngeal Mucosal Pressure Induced by The Pediatric ProSeal™ LMA with Two Techniques of Cuff Inflation: Manufacturer Recommended Maximum Volume vs. Seal Pressure Guided Inflation
This study measures the pressure exerted on the walls of the throat by the breathing tube.
The manufacturer of the PLMA sets a recommended maximum volume of air to inflate the cuff. Doctors regularly use this volume of air to inflate the cuff, or sometimes they will use other end-points based on their knowledge. Putting in the volume of air needed to stop a leak between the cuff and the throat is one of them. Although the mucosal pressure exerted by breathing tubes has been studied in adults, the mucosal pressure when using the manufacturer recommended volume versus inflating it until a leak disappears is not known in children. This information on mucosal pressure in children will help doctors in the future make decisions on how to inflate the cuff more safely.
Who can participate in this study?
- In order to participate in the study, your child must weigh less than or equal to 30 kg.
Who should not participate in this study?
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Children having head/neck surgery, or with a history or signs of chronic lung disease (other than mild asthma) or are having gas anesthesia cannot be invited to participate in this study. In addition, children must be in general good health to be involved. Your child’s anesthetist will make this judgment.
Status?
- Data collection completed. Data analysis and publication in progress.