Comparison of endoscopic endotracheal intubation and the v-gel supraglottic airway device for spontaneously ventilating New Zealand white rabbits undergoing ovariohysterectomy

2020 ◽  
Vol 187 (10) ◽  
pp. e84-e84
Author(s):  
Jessica Comolli ◽  
Rodney Schnellbacher ◽  
Hugues Beaufrere ◽  
Uriel Blas-Machado ◽  
Jane Quandt ◽  
...  
Keyword(s):  
New Zealand ◽  
Endotracheal Intubation ◽  
Airway Device ◽  
Supraglottic Airway ◽  
Controlled Study ◽  
Positive Pressure ◽  
Supraglottic Airway Device ◽  
Arterial Blood ◽  
Airway Trauma ◽  
New Zealand White Rabbits

BackgroundDue to the technical difficulties with endotracheal intubation of rabbits, a prospective, randomised, controlled study was performed to compare a rabbit-specific supraglottic airway device (SGAD), the v-gel, with endoscopic endotracheal intubation (EEI) in spontaneously breathing rabbits undergoing ovariohysterectomy.MethodsFourteen adult female New Zealand white rabbits were randomly allocated to one of two groups based on the method of airway establishment: EEI or v-gel SGAD. Anaesthesia was induced with ketamine and xylazine and maintained using isoflurane in 100 per cent oxygen. Comparisons were made between groups based on placement time of endotracheal tube/SGAD, number of attempts and adjustments, the necessity to increase isoflurane concentrations to maintain a surgical plane of anaesthesia, arterial blood gas values, gross laryngeal evaluation, and laryngotracheal histopathology.ResultsBoth techniques resulted in elevated arterial pCO2 levels, but the v-gel was associated with more elevated pCO2 in comparison with EEI (P=0.045). Airway trauma was histologically present but clinically negligible in both groups, with no statistically significant differences observed between techniques (P>0.05). Placement time of the v-gel was significantly faster (P=0.003) and required less technical skill than EEI, but was more easily displaced when changing the animal’s position (P=0.004).ConclusionThe v-gel is a practical alternative to EEI for securing the airway of healthy spontaneously ventilating rabbits, provided a capnograph is utilised to ensure continuous placement. Both airway techniques appear safe and effective with few complications, as long as intermittent positive pressure ventilation can be employed to correct hypercapnia.

scholarly journals Anaesthetic and Perioperative Management of 14 Male New Zealand White Rabbits for Calvarial Bone Surgery

Animals ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 896 ◽  
Author(s):  
Mathieu Raillard ◽  
Carlotta Detotto ◽  
Sandro Grepper ◽  
Olgica Beslac ◽  
Masako Fujioka-Kobayashi ◽  
...  
Keyword(s):  
New Zealand ◽  
Postoperative Analgesia ◽  
Perioperative Management ◽  
Pain Scale ◽  
Supraglottic Airway ◽  
Calvarial Bone ◽  
Rescue Analgesia ◽  
Bone Surgery ◽  
Arterial Blood ◽  
New Zealand White Rabbits

Calvarial bone surgery on rabbits is frequently performed. This report aims to document a simple and practical anaesthetic and perioperative management for this procedure. Fourteen male New Zealand white rabbits were included in the study. Subcutaneous (SC) dexmedetomidine, ketamine and buprenorphine ± isoflurane vaporized in oxygen administered through a supraglottic airway device (V-gel®) provided clinically suitable anaesthesia. Supplemental oxygen was administered throughout recovery. Monitoring was clinical and instrumental (pulse-oximetry, capnography, invasive blood pressure, temperature, arterial blood gas analysis). Lidocaine was infiltrated at the surgical site and meloxicam was injected subcutaneously as perioperative analgesia. After surgery, pain was assessed five times daily (composite behavioural pain scale and grimace scale). Postoperative analgesia included SC meloxicam once daily for four days and buprenorphine every 8 h for three days (unless both pain scores were at the lowest possible levels). Rescue analgesia (buprenorphine) was administered in case of the score > 3/8 in the composite pain scale, >4/10 on the grimace scale or if determined necessary by the caregivers. Airway management with a V-gel® was possible but resulted in respiratory obstruction during the surgery in two cases. Hypoventilation was observed in all rabbits. All rabbits experienced pain after the procedure. Monitoring, pain assessments and administration of postoperative analgesia were recommended for 48 h.

scholarly journals Performance of Size 1 I-Gel Compared with Size 1 ProSeal Laryngeal Mask in Anesthetized Infants and Neonates

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Gulay Erdogan Kayhan ◽  
Zekine Begec ◽  
Mukadder Sanli ◽  
Ender Gedik ◽  
Mahmut Durmus
Keyword(s):  
Primary Outcome ◽  
Good Alternative ◽  
Airway Device ◽  
Insertion Time ◽  
Supraglottic Airway ◽  
Controlled Study ◽  
Leak Pressure ◽  
Supraglottic Airway Device ◽  
Secondary Outcomes

Purpose. The size 1 I-gel, recommended for small infants and neonates weighing 2–5 kg, has recently been released. There are no prospective studies available that assess the insertion conditions, sealing pressures, or ventilation quality of it. This study was designed to compare the performance of recently released size 1 I-gel with size 1 ProSeal LMA.Methods. Fifty infants and neonates, ASA I-II were included in this prospective, randomized, and controlled study. Patients were divided into two groups for placing I-gel or ProSeal LMA. The primary outcome was airway leak pressure, and secondary outcomes included insertion time, insertion success and conditions, initial airway quality, fiberoptic view of the larynx, and complications.Results. There were no significant differences in terms of airway leak pressure between the I-gel (27.44±5.67) and ProSeal LMA (23.52±8.15) (P=0.054). The insertion time for the I-gel was shorter (12.6±2.19 s) than for the ProSeal LMA (24.2±6.059 s) (P=0.0001). Insertion success and conditions were similar in groups. We encountered few complications.Conclusion. Our study demonstrates that the size 1 I-gel provided an effective and satisfactory airway as the size 1 ProSeal LMA. It may be a good alternative supraglottic airway device for use in small infants and neonates. This trial is registered with: ClinicalTrials.govNCT01704118.

scholarly journals Comparison of fibre-optic-guided endotracheal intubation through a supraglottic airway device versus hyperangulated video laryngoscopy by emergency physicians: A randomised controlled study in cadavers

2021 ◽  
pp. 102490792110342
Author(s):  
Christopher J Groombridge ◽  
Amit Maini ◽  
Joseph Mathew ◽  
Peter Fritz ◽  
Yesul Kim ◽  
...  
Keyword(s):  
Confidence Interval ◽  
Airway Device ◽  
Video Laryngoscope ◽  
Supraglottic Airway ◽  
Fibre Optic ◽  
Emergency Physicians ◽  
Supraglottic Airway Device ◽  
Airway Scope ◽  
Airway Trauma ◽  
Randomised Controlled

Background: After failed endotracheal intubation, using direct laryngoscopy, rescued using a supraglottic airway device, the choice of subsequent method to secure a definitive airway is not clearly determined. Objective: The aim of this study was to compare the time to intubation using a fibre-optic airway scope, to guide an endotracheal tube through the supraglottic airway device, with a more conventional approach using a hyperangulated video laryngoscope. Methods: A single-centre randomised controlled trial was undertaken. The population studied were emergency physicians working in an adult major trauma centre. The intervention was intubation through a supraglottic airway device guided by a fibre-optic airway scope. The comparison was intubation using a hyperangulated video laryngoscope. The primary outcome was time to intubation. The trial was registered with ANZCTR.org.au (ACTRN12621000018819). Results: Four emergency physicians completed intubations using both of the two airway devices on four cadavers for a total of 32 experiments. The mean time to intubation was 14.0 s (95% confidence interval = 11.1–16.8) in the hyperangulated video laryngoscope group compared with 29.2 s (95% confidence interval = 20.7–37.7) in the fibre-optic airway scope group; a difference of 15.2 s (95% confidence interval = 8.7–21.7, p < 0.001). All intubations were completed within 2 min, and there were no equipment failures or evidence of airway trauma. Conclusion: Successful intubation of the trachea without airway trauma by emergency physicians in cadavers is achievable by either fibre-optic airway scope via a supraglottic airway device or hyperangulated video laryngoscope. Hyperangulated video laryngoscope was statistically but arguably not clinically significantly faster than fibre-optic airway scope via supraglottic airway device.

scholarly journals Comparison of the Disposable Streamlined Liner of the Pharynx Airway and the Disposable I-gel in Anaesthetized, Paralyzed Adults: A Randomized Prospective Study

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Khaled EL-Radaideh ◽  
Ala"a Alhowary ◽  
Diab Bani Hani
Keyword(s):  
Airway Device ◽  
Insertion Time ◽  
Supraglottic Airway ◽  
Supraglottic Airway Device ◽  
Hemodynamic Stability ◽  
Arterial Blood ◽  
Single Use ◽  
Sealing Pressure ◽  
End Tidal ◽  
Single Blind

Introduction. This study compared streamlined liner of the pharynx airway (SLIPA) and I-gel noninflatable, single-use, supraglottic airway device (SAD) performance in anesthetized, paralyzed adults.Methods. Eighty adults (ASA physical statuses I–III) who were undergoing elective procedures under general anesthesia with an SAD were enrolled in this prospective, randomized, single-blind study. Subjects were randomly and evenly assigned to the SLIPA or I-gel group for intraoperative airway management. Ease and number of insertions, insertion time, oropharyngeal sealing pressure, hemodynamic response, oxygen saturation (SpO2), end-tidal CO2(EtCO2), and peri- and postoperative complications were examined.Results. The SLIPA and I-gel devices were successfully inserted in 100% and 95% of subjects, respectively. In two I-gel subjects (5%), ventilation was not possible after two attempts, but a size 55 SLIPA was successfully inserted in both cases. Forty-two and 38 patients were ultimately included in the SLIPA and I-gel groups, respectively. Insertion time was significantly shorter with the SLIPA (11.19±3.03 s) than with the I-gel (15.05±6.37 s,P=0.003). Oropharyngeal sealing pressure was significantly higher in SLIPA (28.76±3.11 cmH2O) than in I-gel (25.9±3.65 cmH2O) subjects (P=0.001). Blood staining occurred more frequently in SLIPA (n=8, 19.0%) than in I-gel (n=5, 13.2%) patients (P<0.01). Heart rate, mean arterial blood pressure, SpO2, and EtCO2were not significantly different between groups.Conclusion. Although blood staining incidence was higher, SLIPA insertion was easier and faster than I-gel insertion. The SLIPA provided better airway sealing pressure. Both devices had similar mechanical ventilation and oxygenation characteristics and comparable hemodynamic stability. Both noninflatable SADs are useful, but SLIPA rapid insertion and good airway sealing make it an effective alternative to the I-gel.

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