BACKGROUND: Super-obese patients are at increased risk of difficult mask ventilation and difficult intubation. Therefore, devices that allow for simultaneous ventilation/oxygenation during attempts to visualize the entrance to the larynx, increase patient safety. TotalTrack video intubatinglaryngeal mask is a new device that allows for ventilation during intubation efforts. PATIENTS AND METHODS: Twenty-four super-obese patients (body mass index >50 kg/m(2)) were divided into two subgroups: intubation efforts using 1) TotalTrack and 2) Macintosh blade standard laryngoscope in induction of general anesthesia. Visualization and successful intubation was evaluated for both groups with ventilation and post-mask complications additionally evaluated for TotalTrack. RESULTS: In all cases in the TotalTrack group, the Cormack-Lehane score was 1, ventilation and intubation was successful in 11/12 patients. No hypoxia during intubation efforts was recorded. No serious complications of use of TotalTrack were observed. In the Macintosh blade laryngoscope group, all patients were intubated, but the Cormack-Lehane score was 2 in four cases, and 3 in three cases. CONCLUSION: TotalTrack video intubating laryngeal mask is a device that allows for better visualization of the larynx compared to the standard Macintosh blade laryngoscope, it provides effective ventilation/oxygenation and intubation in super-obese patients.
KEYWORDS: intubation; laryngeal mask; standard laryngoscope; super-obese; ventilation; video laryngoscope
Una nueva opción en el manejo de la vía aérea: evaluación de de la video mascarilla laríngea Total Track®
A new option in airway management: evaluation of the TotalTrack® video laryngeal mask
J O Choonoo, R Hofmeyr, N R Evans, M F James, N Meyersfeld
Southern African Journal of Anaesthesia and Analgesia 2016; 22(2):52-56
Background: The TotalTrack® Video Laryngeal Mask (VLM) is a novel airway management device consisting of a disposable laryngeal mask paired with a reusable video display. Prior to the commencement of this study, there was no published literature on the performance of the TotalTrack®. Methods: The device was evaluated in sixty patients without predictors for difficult airway under general anaesthesia with neuromuscular blockade. Primary outcomes were laryngeal mask seal pressures and success of tracheal intubation through the device. Results: Insertion and ventilation was successful in 98.3% of cases. Median static leak and maximal inflation pressures of the laryngeal mask component were 32 and 40 cmH2O respectively. Tracheal intubation through the device was successful in 95% of cases, with a mean intubation time of 9.5 s. No gastric insufflation occurred. Haemodynamic variability was found to be clinically insignificant. No significant side-effects were reported. Conclusions: In this initial study, the TotalTrack® VLM was found to be effective as a laryngeal mask airway, exhibiting good sealing pressures. It facilitated predictable, easy intubating conditions under video guidance, with minimal interruption of ventilation.