Methods. It was a randomised, controlled, single-blinded trial. Medical students (n=54) were taught about fiber optic intubation in a theoretical lecture, after which they were divided into two groups: G1 – iLarynx training (n=28), and G2 – no additional training (n=26). G1 was instructed to use the iLarynx app for a month. After a month, students’ skills were tested with the help of moulages. The duration of the task fulfilment was assessed. The data of subjective performances were analysed using Mann-Whitney one-way analysis of variance. The rate of intubation failure was analysed by the Pearson chi-square test. Permission of the Bioethics Centre of the Lithuanian University of Health Sciences No. BEC-MF-536 was obtained.

Results. There was no significant difference in the duration of intubation between the groups (G1 56.46±17.825 s, G2 58.04±29.26 s, P=0.634). Then, 27 students (50.0%, n=54) who had previous experience with endotracheal intubation were divided between the groups (G1 – 13 students, G2 – 14 students, P=0.768). G1 used the iLarynx app from 1 to 10 times a week with the median of 3 times a week. G1 students used the app significantly more often if they had previous endotracheal intubation experience (P=0.04).

Conclusion. The data show no significant change in the fiber optic intubation learning efficiency. The motivation to practice is greater when a student already has experience in the particular field.