The investigation of airway management capacity of v-gel and cobra-PLA in anaesthetised rabbits

Abstract

PURPOSE:To evaluate the applicability and airway management capacity of v-gel ® and Cobra PLA in rabbit anaesthesia during assisted (AV) or controlled ventilation (CV). METHODS:This study was carried out in 44 adult New Zealand white rabbit. Baseline arterial pH, PaCO 2 and PaO 2 values were recorded. Anaesthesia was induced with 5 mg/kg xylasine and 35 mg/kg ketamine HCI combination. AV rabbits were assigned as;control (CG-AV; n=5), LMA (LMA-AV; n=5), cobra PLA (PLA-AV; n=5) and v-gel (v-gelAV; n=5). Rabbits have CV were also assigned as; ET (ET-CV; n=6), LMA (LMA-CV; n=6), cobraPLA (PLA-CV; n=6) and v-gel (v-gelCV; n=6). All measurements were repeated 1st, 5th, 15th and 30th mins during anaesthesia. RESULTS:The less insertion time, number of attempt and complications are recorded in v-gel applied rabbits compared to other apparatus. For arterial pH values significant differences are recorded in especially at 15th and 30th min between groups of CV (p<0.005 or p<0.001). All groups had similar results with each other during anaesthesia for PaCO 2 except for LMA-CV group. CONCLUSION:The v-gel may be used as airway device in rabbit anaesthesia undergoing AV or CV and also can be a suitable alternative to endotracheal tubes and laryngeal mask airway.

Comparison of a Supraglottic Airway Device (v-gel®) with Blind Orotracheal Intubation in Rabbits

“…SGAD size was selected based on manufacturer guidelines. All rabbits in this study were of the same breed and while it is unknown if this breed was included during device design, airway management with this SGAD has been successful in this breed in other studies (14, 15). …”

Assessment of v‐gel supraglottic airway device placement in cats performed by inexperienced veterinary students

“…The colour of the other mucous membranes and the SpO 2 measured on the third digit were normal, suggesting that the lingual cyanosis was due to venous outflow obstruction caused by the v‐gel SGAD. This has been previously reported in cats (Prasse and others 2015) and rabbits (Crotaz 2013 ; Uzun and others 2015). Repositioning of the v‐gel SGAD and application of an ice pack on the tongue was sufficient to resolve the problem without further complications.…”

“…Studies have shown that LMAs in rabbits were easy to insert, but they had the potential of causing lingual cyanosis, gastric tympany, laryngeal oedema and air leak around the cuff (Bateman and others 2005, Kazakos and others 2007, Uzun and others 2015). These studies utilised an LMA that was specifically designed for human oropharyngeal anatomy.…”

“…Due to the technical difficulty in orotracheal intubation of the rabbit (Tran and others 2001, Bateman and others 2005), LMAs have also been utilised as an alternative method for airway management in this species (Bateman and others 2005). Studies have shown that LMAs in rabbits were easy to insert, but they had the potential of causing lingual cyanosis, gastric tympany, laryngeal oedema and air leak around the cuff (Bateman and others 2005, Kazakos and others 2007, Uzun and others 2015). These studies utilised an LMA that was specifically designed for human oropharyngeal anatomy.…”

“…Recently, the v‐gel supraglottic airway device (SGAD) has been developed to adapt to the unique anatomy of the rabbit oropharynx. This device better conforms to the larynx of the rabbit and prevents air leaks and damage to soft tissue structures (Crotaz 2010, Uzun and others 2015). In a pilot study, Crotaz concluded that the v‐gel SGAD was easy to insert and the device was a reasonable alternative to endotracheal intubation (Crotaz 2013).…”