The study of respiratory sleep disorders in intensive care is a developing
field. Indeed sleep pathology concerns not only pneumologists and neurophys
iologists but also numerous specialties including medicosurgical resuscitat
ion. The advent of "portable" appliances should facilitate access to polyso
mnography (PSG) for diagnosis of sleep respiratory disorders (RDS) in the i
ntensive care unit. This examination can be appropriate in two separate cir
cumstances. RDS in life-threatening situations (generally respiratory and/o
r cardiac failure) or when RDS is worsened by the specific conditions of in
tensive care units: "intensive care-induced RDS". In both cases, easy diagn
osis of RDS by PSG allows adjustment of the treatment (corrections of iatro
genic factors, continuous positive airway pressure [CPAP], noninvasive vent
ilation [NIV], oxygen [O-2]. A specific treatment of the well documented RD
S is most desirable, as the patients are considered to be at high risk for
endotracheal intubation. If diagnosis of RDS is not made during the acute p
hase, the intensive care physician should be informed of the clinical and p
araclinical elements leading to prescription of a delayed polysomnography i
n order to reduce the risk of further vital distress.