title: Paroxysmal nocturnal dyspnoea and periodic respiration.
abstract: Patterns of breathing at night were recorded in 4 patients with heart-failure. 2 had periodic breathing while awake and in 2 it developed after they fell asleep. In all 4 the phase of hyperventilation disturbed sleep. These cases also illustrate other problems caused by periodic respiration in heart-failure, which range from tiredness during the day to an inability to sleep for more than a few minutes. Nocturnal waking in the hyperventilation phase of Cheyne-Stokes breathing should be differentiated from paroxysmal nocturnal dyspnoea caused by episodes of pulmonary oedema at night.
mesh_terms: D000368:Aged; D002639:Cheyne-Stokes Respiration / Q000503:physiopathology*; D002940:Circadian Rhythm; D004417:Dyspnea / Q000209:etiology*; D005260:Female; D006333:Heart Failure / Q000503:physiopathology; D006801:Humans; D008297:Male; D009203:Myocardial Infarction / Q000503:physiopathology; D012119:Respiration; D012120:Respiration Disorders / Q000503:physiopathology*; D012214:Rheumatic Heart Disease / Q000503:physiopathology; D012894:Sleep Stages / Q000502:physiology; D012893:Sleep Wake Disorders / Q000209:etiology