 The Intubation with the VivaSightTM-SL endotracheal tube does not differ from an intubation with a conventional tube that is done with respect to the standard operating procedure SOP of the Dept. of Intensive Care Medicine. Additionally, the intubation is guided by the camera mounted on the tip of the tube. During the intubation, vital parameters are monitored with respect to the underlying disease and patients therapy is continuously adjusted. According to the SOP, two physicians are present of which at least one is a fellow or an attending physician with experience in intensive care medicine. In this trial, intubation is done exclusively by a fellow or attending physician. 