A*******s
发帖数: 9638 | 1 一个不常见，容易忽视的诊断。
Subclavian stenosis disorder is a relatively rare disorder. There are only
about 2% in today’s population and about 7% of the clinical population that
suffer from subclavian stenosis. On most cases, SSP or subclavian steal
phenomenon is only incidentally found during sonography conducted in the
vertebral system. About 2% to 5% of those who are examined are discovered
this way. Of all these incidents, only 5% of the patients actually
manifested symptoms of subclavian stenosis syndrome.
http://emedicine.medscape.com/article/418203-overview#showall |
d**o
发帖数: 618 | 2 这个SSS是不是发生在左侧比右侧的可能性要大得多？因为右侧的carotid branch
point到vertebral branch point之间的距离太短了，只有正好在那短短一段里clot才
能SSS？ |
A*******s
发帖数: 9638 | 3 不是很清楚，应该是两侧都有， 那个多得看统计， 恐怕跟解剖关系不大。
【在 d**o 的大作中提到】
: 这个SSS是不是发生在左侧比右侧的可能性要大得多？因为右侧的carotid branch
: point到vertebral branch point之间的距离太短了，只有正好在那短短一段里clot才
: 能SSS？
|
d****y
发帖数: 2180 | 4 呵呵。刚好NBME里面碰到一个这个病例。老大，你会选B还是C啊？
B) Magnetic resonance angiography
C) Ultrasonography of the carotid arteries |
A*******s
发帖数: 9638 | 5 I would choose C.
MRA of subclavian is not a routine test.
Carotid u/s is able to identify vertebral retrograde flow and subclavian
artery stenosis although it is tech dependent. |
d****y
发帖数: 2180 | 6 Is it right that use carotid/us as the initial screen test since it's
relately unexpensive, if identy vertebral retrograde flow and subclavian
artery stenosis, then do a MRA or angiogram of the subclavian ?
【在 A*******s 的大作中提到】
: I would choose C.
: MRA of subclavian is not a routine test.
: Carotid u/s is able to identify vertebral retrograde flow and subclavian
: artery stenosis although it is tech dependent.
|
A*******s
发帖数: 9638 | 7 ultrasound can detect the flow direction. MRA or CTA can't. We use CTA to
comfirm and evaluate the degree of stenosis.
【在 d****y 的大作中提到】
: Is it right that use carotid/us as the initial screen test since it's
: relately unexpensive, if identy vertebral retrograde flow and subclavian
: artery stenosis, then do a MRA or angiogram of the subclavian ?
|
d****y
发帖数: 2180 | 8 Thanks!
【在 A*******s 的大作中提到】
: ultrasound can detect the flow direction. MRA or CTA can't. We use CTA to
: comfirm and evaluate the degree of stenosis.
|
