《英文msh词典》Postural Syncope
[入口词] Postural Syncope
[主题词] Syncope
[中文释义] 体位性晕厥
[英文释义] A transient loss of consciousness and postural tone caused by diminished blood flow to the brain (i.e.,BRAIN ISCHEMIA). Presyncope refers to the sensation of lightheadedness and loss of strength that precedes a syncopal event or accompanies an incomplete syncope. (From Adams et al.,Principles of Neurology,6th ed,pp367-9)