[Difficulties in diagnosis and treatment of heart failure].

Heart failure is a frequent diagnosis in both in- and outpatients. Despite advances in therapy during the past two decades, prognosis is still serious with a mortality rate of 30 % in the first year after diagnosis. Echocardiography is the important investigation when clinical findings suggest heart failure.

Selective REM sleep deprivation in narcolepsy.

Narcolepsy is characterized by excessive daytime sleepiness and rapid eye movement (REM) sleep abnormalities, including cataplexy. The aim of this study was to assess REM sleep pressure and homeostasis in narcolepsy. Six patients with narcolepsy and six healthy controls underwent a REM sleep deprivation protocol, including one habituation, one baseline, two deprivation nights (D1, D2) and one recovery night.