Tắc động mạch thân nền, đột quỵ 1. Triệu chứng của NMN do tắc ĐM thân nền 2. Điều trị can thiệp lấy HK khi tắc ĐM thân nền

1. Basilar Artery Occlusion
- BAO -

2. Basilar Artery

3. Territories of BA

4. Question
1. Symptoms of BAO?
2. Time window to recanalization basilar artery.
Why longer?
3. Pharmacological thrombolysis or
endovascular thrombectomy in BAO
4. Study about BAO?
5. GOs and FR

5. HISTORY

6. Symptoms of BAO

7. Stroke Presentation
• 80% of strokes have typical signs or symptoms such
as aphasia, hemiparesis, facial droop, dysarthria.
• 15% have only subtle signs such as vision loss,
diplopia, dysconjugate gaze, vertigo, hearing loss,
ataxia.
• 3% may present with catastrophic
unresponsiveness from basilar artery stroke.
• 1% may present with isolated altered mental status.

9. Based on the temporal profile of the symptoms, BA
thrombosis may manifest in at least these 3 different ways
• Sudden onset of severe motor and bulbar symptoms
with impaired consciousness
• Gradual or stuttering course of a combination of the
symptoms described above that ends with disabling
motor and bulbar symptoms, impaired consciousness,
or both
• Prodromal symptoms that may include loss of vision,
diplopia, dysarthria, vertigo, hemiparesis, paresthesias,
imbalance, and convulsive-like movements (these
symptoms may precede monophasic basilar artery
thrombosis by several days or even by months)

12. Prodromal Symptoms

13. QESTION 2
Time window for recanalization in
basilar artery occlusion. Why longer?

15. • Occlusion of the basilar artery is one of the
most devastating forms of ischemic stroke.
• It carries a high mortality of 85–95% if
recanalization does not occur, and a
substantial part of survivors suffer severe
disability, some being in locked in state.