Effect of the new video laryngeal mask airway SaCoVLM on airway management in lateral laparoscopic urological surgery: A single center randomized controlled trial

Few studies focus on laryngeal mask airways (LMAs) in lateral decubitus surgery. Thestudy aimed to assess how lateral position and pneumoperitoneum affect oropharyngeal leak pressure (OLP) and ventilation efficiency of the LMA SaCoVLM.

Patients for elective retroperitoneal laparoscopic urological surgery were randomly assigned 1:1 to the Supreme or SaCoVLM group. The main outcome was OLP upon LMA insertion, with secondary outcomes including first - attempt success rate, insertion time, adjustment times, gastric tube success rate, LMA alignment accuracy, removal time, regurgitation/aspiration, blood staining, and 24 - hour post - surgery adverse events.

70 patients completed the study. Despite lateral position and pneumoperitoneum, the SaCoVLM group (n = 35) had higher OLP than the Supreme group (n = 35), with a median difference of 4–7 cmH?O. The SaCoVLM group also had a higher first - attempt success rate (91.4% vs. 77.1%, RR: 1.19; 95% CI 0.96 to 1.46, P = 0.188).

In conclusion, during lateral - position pneumoperitoneum, while the new video LMA SaCoVLM has higher OLP than LMA Supreme, both ensure sufficient ventilation efficiency.

https://www.nature.com/articles/s41598-024-51856-4