To assess effects of the simulation education on the group intubating patients in the iCU, in this prospective study investigators will video-record real-life intubations and simulations. From videos will be assessed correlation of technical and non-technical skills before and after the education and performance in real-life vs simulation intubation.

The aim of this trial is to study the effects of simulation education on the action of the group managing patient's airway in the intensive care unit (ICU). Before simulations investigators will video-record 20 real-world intubations. Consequently will be run simulations to whole staff of the ICU. After the education further 20 real-world intubations will be recorded. Also simulations are recorded. From the videos investigators assess technical and non-technical skills of the group before and after simulation education, correlations between groups and influence of the education on action of the group. On the first part of the study, hypothesis is that group's good non-technical skills improve also technical skills. On the second part of the study hypothesis is that performing well in simulation correlates with performing well in real-world situation and teams with less experience the correlation is stronger.

Inclusion Criteria:

-intubations in the icu operated by staff who have given informed consent to this study

Exclusion Criteria:

• intubations in the icu operated by anybody who have rejected video-recording
• intubations in the icu, when patient or patient being unable, close relative has denied permission to use video in this study
• intubated patient is a child, a prisoner, under military service, under forensic psychiatric evaluation, or patient can't give informed consent for example because of the cognitive impairment
• patient is isolated

available on reasonable request excluded videos

from now on till 10 years after study