1、Analysis of predisposing causes and premonitory symptoms of vasovagal syncope
2、Generally speaking, the incubation period or the premonitory symptoms duration is shorter, the symptom is more serious, the mortality rate is higher.
3、Of the 497 cases with apoplexy, there were 11 kinds of premonitory symptoms, of which headache, dizziness, numbness of the limbs, inarticulate speech, blurred version, etc. are more common.
