Comparison of the effects of paratracheal pressure and cricoid pressure on placement of the i-gel® supraglottic airway: a randomized clinical trial
Primary result · Overall success rate of i-gel insertionResult — go to the resultDifference 24% 95% CI 8–40Authors' conclusion
Insertion of the i-gel supraglottic airway was significantly more successful, easier, and faster while applying paratracheal pressure than cricoid pressure.
Study context
- Population
- Adult patients after induction of anaesthesia
- Participants
- 76 patients
- Comparison
- Paratracheal pressure vs cricoid pressure during i-gel insertion
- Paratracheal pressuren = 38
- Cricoid pressuren = 38reference
Primary result
Overall success rate of i-gel insertion
Difference
24%
95% CI 8–40
P = 0.006
Events by treatment group
Paratracheal pressure vs Cricoid pressure
difference 24% (95% CI 8–40); P = 0.006
As reported in the abstract
Further findings
Median, sec
| Outcome | Paratracheal pressure | Cricoid pressure | Difference in medians (95% CI) | P value | |
|---|---|---|---|---|---|
| Time required for insertion | 18 (IQR 15–23) | 28 (IQR 22–38) | −10 (−18 to −4) | P < 0.001 | |
| −20−10010Difference (linear scale) |
| Outcome | P value |
|---|---|
| Resistance during insertion | P < 0.001 |
| Accuracy of insertion location (fibreoptic) | P = 0.31 |
| Differences in tidal volume and peak inspiratory pressure with or without the maneuversP = 0.003 for each | P = 0.003 |
Resistance during insertion
- Significantly lower under paratracheal than cricoid pressure
Accuracy of insertion location (fibreoptic)
- No significant difference between the two maneuvers
Differences in tidal volume and peak inspiratory pressure with or without the maneuvers
- Significantly lower with paratracheal than cricoid pressure
Original publication
Comparison of the effects of paratracheal pressure and cricoid pressure on placement of the i-gel® supraglottic airway: a randomized clinical trial. Can J Anaesth. Published 20 March 2024. doi:10.
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