title: [Emergency and hypertensive crisis: definition and treatment].
abstract: The opinions on how fast high blood pressure values should be lowered in emergencies have changed over the last years. It seems now more and more reasonable to lower high blood pressure values over several hours rather than several minutes. In some cases, however, a rapid reduction of elevated blood pressure may be necessary. In these cases the risks of a rapid decrease of blood pressure with respect to cerebrovascular circulation have to be considered.
mesh_terms: D000208:Acute Disease; D000959:Antihypertensive Agents / Q000008:administration & dosage; D002560:Cerebrovascular Circulation; D004630:Emergencies; D006801:Humans; D006973:Hypertension / Q000188:drug therapy* / Q000503:physiopathology; D013997:Time Factors
chemical_list: D000959:Antihypertensive Agents
vernacular_title: L'urgence et la crise hypertensive: définition et traitement.