[Sleep and anesthesia--Part 1, Recent findings in research].

We described how modern neuroscience has elucidated what is sleep and its implication, and also reviewed histological and current trends in search of sleep mechanism from view of neurocirculatory or hormonary basis studies. We conclude that anesthesia and sleep share some neuronal structure in their action and mechanism of anesthesia could be elucidated through sleep study. In addition, anesthesia-related sleep disturbance must be settled to serve satisfied quality of life of patients and to save economic and medical resources.

[Laryngeal mask application for a case of unpredictable adult tracheal stenosis].

A 69-year-old man with chronic renal failure was scheduled for artero-venous shunt surgery for sustained hemodialysis. On the pre-anesthesia interview, the patient complained of no respiratory symptom. Chest x-ray showed some tracheal deviation.