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Endotracheal intubation in rabbits using a video laryngoscope with a modified blade
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- Authors
- Issue Date
- 2022-07-27
- Publisher
- BMC
- Citation
- Laboratory Animal Research, 38(1):24
- Keywords
- Rabbits ; Inhalation anesthesia ; Endotracheal intubation ; Video laryngoscopes ; Modifed blade ; Modifed stylet
- Abstract
- Rabbits are being increasingly used as companion animals, and in research; thus, the need for proper veterinary care for rabbits has increased. Surgical access is more challenging in rabbits under inhalation anesthesia compared to other animals, such as dogs and cats. Rabbits have a very narrow and deep oral cavity, large incisors, and a large tongue. Moreover, their temporomandibular joint has limited mobility, making it more difficult to approach the larynx. Various methods have been proposed to overcome this difficulty. The video laryngoscope was introduced in 1999 and is useful when airway intubation is unsuccessful using a conventional laryngoscope. We postulated that a video laryngoscope with a modified size 1 Macintosh blade (McGrath MAC Video Laryngoscope, Medtronic, USA) would facilitate the intubation of New Zealand White rabbits. Sixteen specific-pathogen-free male New Zealand White rabbits weighing 3.45–4.70kg were studied. All rabbits were intubated using the video laryngoscope. Typically, a 3.0mm endotracheal tube was used for rabbits weighing < 4kg, while a 3.5mm tube was used in those weighing > 4kg. During surgery, anesthesia was well maintained, and there were no major abnormalities in the animals conditions. No rabbit developed breathing difficulties or anorexia after recovering from anesthesia. We established an intubation method using a video laryngoscope with a modified blade and stylet in the supine (ventrodorsal) position and successfully applied it in 16 rabbits. It is useful for training novices and for treating rabbits in veterinary hospitals with few staff members and animal research facilities where there are insufficient human resources.
- ISSN
- 2233-7660
- Language
- English
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