title: Sleep-waking changes in cardiac arrhythmia in a coronary care patient.
abstract: A single case is reported in whom ventricular cardiac arrhythmias were related to the occurrence of polygraphically verified sleep. A strong relationship was found to exist between the heart rate in any one minute and the number of premature ventricular contractions, with higher rates associated with a greater number of these ectopic beats.
mesh_terms: D001145:Arrhythmias, Cardiac / Q000209:etiology*; D003325:Coronary Care Units; D006339:Heart Rate; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D012890:Sleep / Q000502:physiology*; D012894:Sleep Stages / Q000502:physiology; D012895:Sleep, REM / Q000502:physiology; D014851:Wakefulness / Q000502:physiology*