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????TIA????TIA??????24??Holter???????TIA??CTMRI????????

????2-3?????

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??????????????????????????TIA???????...

???????????24???2???????CT?????
?????456??????

?40??????

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??????????????????????{???CT????
????????????DXM?????????
???????1.???60%????2.?????????????????????????????????????3.????????????????????
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????TIA????TIA??????24??Holter???????TIA??CTMRI????????
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??????????????????????????TIA???????????
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1????????TIA????20mg5%500ml?706?500ml????...

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       ????y????????????????????????????????????????????
 
????????????????????????????????10-20?????????????????????????10.7Kpa80mmHg???????????????????1-2?????????????????convulsive syncope????????
 

??y?????????????
?head-up tilt test, HUT???????????...