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直立性低血压[1](orthostatic hypotension)又称体位性低血压[2](postural hypotension),是因因血压调节反射异常导致的直立后血压异常下降的现象,卧姿时血压通常会恢复正常。直立性低血压可引起脑供血不足症状,如头晕、乏力、视物模糊、面色苍白、黑蒙、晕厥等。可应用血管收缩药物进行治疗。直立性低血压多出现在中老年患者身上,男性发病率高于女性[3]。
直立性低血压有许多异名:起立性低血压[4]、姿势性低血压、姿态性低血压、姿位性低血压等。
相对地,另有平卧时血压反而降低的姿位性低血压。
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