[Preoxygenation--safety of induction].

Preoxygenation is a standard technique in general anaesthesia, but is frequently neglected. It has been proven that calm breathing of 100% oxygen allows for removal of 95% of the nitrogen from the body, replacing it with oxygen. This technique allows for safe intubation, even in difficult settings.

[Endotracheal suctioning in neonates and children].

Endotracheal suction is essential to keep the respiratory capacity of the bronchial tree. The aim of this study was to establish the principles reducing potential side-effects, like hypoxia, bradycardia, hypotension, arrhythmia, nosocomial infections. Analysing the literature we have selected the following major beneficial factors: 1:2 to 2:3 cathether - tracheal tube diameter ratio, individual adjustment of the suctioning frequency, maximal duration of the procedure capped at 10-15 sec.