Influence of different airway devices on intra-arrest ventilation during bag-valve-device ventilation - a prospective randomized controlled cadaver study
Primary result · ΔVtResult — go to the resultRegression coefficient −61.07 ml 95% CI −93.58 to −28.55Authors' conclusion
The ∆Vt was lower in the ET group than the SGA group, whereas there was no evidence for differences in ∆Vt among the devices in the SGA group.
Study context
- Population
- Thiel-embalmed human cadavers in a standardized resuscitation scenario (mean age at death 84 ± 3.7 years)
- Participants
- 11 cadavers
- Comparison
- ET vs SGA
- Primary endpoint
- Difference between Vtideal and Vte (∆Vt)
Methodological detailsprospective, randomized order of airway devices, Thiel-embalmed human cadavers, Chest compressions via Corpuls-CPR
- Prospective
- Randomized order of airway devices
- Thiel-embalmed human cadavers
- Chest compressions via Corpuls-CPR
Primary result
ΔVt
Regression coefficient
−61.07 ml
95% CI −93.58 to −28.55
P = 0.0003
Change by group
ET
142.2
mean · SD 125.5 · ml
SGA
202.0
mean · SD 153.1 · ml
As reported in the abstract
Further findings
Expiratory tidal volume (Vte)
regression coefficient (ml) 61.14 (28.63–93.65) · P = 0.0003
Leakage volume (Vleak)
regression coefficient (%) −20.98 (−26.63 to −15.33) · P < 0.0001
Mean pressure (Pmean)
regression coefficient (mbar) 0.90 (0.59–1.21) · P < 0.0001
Peak pressure (Ppeak)
regression coefficient (mbar) 11.46 (8.65–14.26) · P < 0.0001
ΔVt among SGA devices
- No evidence for differences in ΔVt among the cadavers in the SGA group
Original publication
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