Comparison of the effects of an endotracheal tube and a V‐gel airway device on intraocular pressure and haemodynamic responses in anaesthetised cats
Year: 2025
Type: article
Abstract: Background This study aimed to compare the effects of placing an endotracheal tube (ETT) versus a V‐gel airway device on intraocular pressure (IOP), heart rate (HR), mean arterial pressure (MAP) and peripheral oxygen saturation (SpO 2 ) in anaesthetised cats. Methods Twenty animals were randomly assigned to one of two groups: the ETT group ( n = 10) or the V‐gel group ( n = 10). IOP, HR, MAP, and SpO 2 were monitored at baseline ( T b ), post‐sedation and induction ( T 0 ), immediately after intubation ( T i ), at 2 ( T 2 ), 5 ( T 5 ), 10 ( T 10 ) and 15 ( T 15 ) minutes after‐intubation, and after extubation ( T e ). Results IOP increased in both groups after intubation, with significantly higher values in the V‐gel group at T 2 and T 5 ( p = 0.005 and 0.014, respectively). IOP decreased below baseline by T 10 and T 15 , with no significant differences between the two groups. HR was significantly higher in the V‐gel group at T i , T 2 , T 5 and T 10 ( p = 0.001, 0.001, 0.001 and 0.016, respectively). No significant differences were observed in SpO 2 or MAP between the groups at any time point. Limitation The anaesthetic protocol may have influenced the IOP and HR, potentially confounding comparisons between the ETT and V‐gel groups. Conclusion The V‐gel airway device resulted in higher IOP and HR values following intubation than the ETT group. Therefore, the V‐gel may not be ideal for feline patients with ocular disease or cardiovascular compromise, where minimising IOP and cardiovascular stimulation is critical.
Source: Veterinary Record
DOI: 10.1002/vetr.5430
Institution: Burdur Mehmet Akif Ersoy Üniversitesi
Language: English
Subfield: Anesthesiology and Pain Medicine
Field: Medicine
Domain: Health Sciences
Open Access status: hybrid
Estimated APC paid: $3,980
OpenAlex ID: W4410522574