Ortho
5/12/99

Vertebrobasilar Stroke Following Manipulation
P21—conclusions

•	Eddy Current—back flow of blood through a narrowed lumen
•	Can be treated w/anti-coagulant (heparin, coumadin—both are derivatives of warferin (rat poison))—take these daily for deep vein thrombus, stroke/TIA, valvular replacement
•	Dilatation—created by back flow, outpocketing of the lumen
•	Aneurysm—larger dilatation
•	Embolism—piece of a thrombus that has broken off, travels through the vessels where it gets stuck in a capillary
•	Ischemia—transient ischemic attack (20min to 24 hrs)—temporary affects
•	Infarction—stroke—death of brain tissue; may have one large or several smaller ones (focal strokes that are cumulative)

Hemorrhage
•	Can result in cell death esp. in the brain
•	Anti-coagulant can lead to vascular hemorrhage