Does the use of supraglottic device in rabbits cause less injury than other airway management devices?

PICO question In rabbits, undergoing general anaesthesia, does the placement of a v-gel® device result in less airway trauma compared to the use of other airway management devices? Clinical bottom line Category of research question Treatment The number and type of study designs reviewed Three papers were critically appraised, two blinded randomised experimental trial studies and one randomised crossover experimental trial study Strength of evidence Weak Outcomes reported One blinded randomised trial study demonstrated that the trauma to the upper airways of rabbits during anaesthesia is not significantly different between the use of v-gel® and an endotracheal tube. The other blinded randomised trial study demonstrated that the trauma to the upper airway caused by endotracheal intubation is significantly more than that caused by v-gel® placement. The randomised crossover trial study demonstrated that v-gel® placement causes more significant compression to the larynx compared to a laryngeal mask or face mask Conclusion The current evidence suggests that use of the v-gel® in rabbits causes less trauma / injury to the airways compared to placement of an endotracheal tube but not compared to the use of a laryngeal or face mask. However, based on the low number and quality of published studies, this evidence is weak, and better-quality studies are required to support the routine use of v-gel® over other airway devices in rabbits. While v-gel® may be a safer alternative for securing airways in rabbits compared to endotracheal intubation, knowing the injuries this device can cause to the upper airways is useful for managing rabbits during post anaesthesia recovery. This Knowledge Summary has reviewed the available evidence on the use of a SGAD (v-gel®) in rabbit anaesthesia. Since writing a new design of a single use supraglottic airway device (SGAD) has been introduced; currently there is no published evidence on whether this new device has an impact on the risk of injury.