title: [Circadian rhythm of cardiovascular emergencies].
abstract: Many cardiovascular emergencies occur predominantly in the morning hours. This diurnal distribution is due to synchronized exogenous and endogenous rhythms, the latter being controlled by a biological clock. In the morning, these rhythms raise blood pressure, heart rate, platelet aggregability, coronary vascular tone and thus, increase the risk of cardiovascular events.
mesh_terms: D001143:Arousal / Q000502:physiology; D002940:Circadian Rhythm / Q000502:physiology; D016757:Death, Sudden, Cardiac / Q000453:epidemiology / Q000209:etiology; D004562:Electrocardiography; D004630:Emergencies / Q000453:epidemiology*; D006439:Hemodynamics / Q000502:physiology; D006801:Humans; D009203:Myocardial Infarction / Q000401:mortality* / Q000503:physiopathology; D012307:Risk Factors; D013557:Switzerland
vernacular_title: Zirkadiane Rhythmen bei kardiovaskulären Notfällen.