Question: History: My mother had a giant aneurysm in the brain which ruptured and for which she had coiling done in nov 2012. after this a repeat coiling with stent placement was done in sep 2013. post this she was taking Plavix and ecosprin 150 for a year. after a year, she was asked to stop taking Plavix and only continue with ecosprin 150. last month, that is in Apr 2015, she had an angiography done and the blood flow through the artery was said to be excellent through the main ICA. But now a month later she has stent thrombosis.
Current Condition: On may 8 she had a seizure with no frothing, on May 9 she had seizure (for 20 minutes including 5 minutes of frothing). On admission, while waiting for the doctor, she had slurry speech and could not grip with right hand. She had 4-5 ministrokes during the day. On doing an angio, they discovered that the entire ICA was blocked and the stent had thrombosed and there was no blood flow to complete left part of brain. But other smaller arteries have supplemented and are providing slight blood flow, which increased on increasing her blood thinners dosage. The body they say is adapting slowly.
Questions:
1) Can the left brain function completely normally through these substitute smaller arteries that are compensating for the large artery? At her age can the body adapt to this (she is now 56 years old)? What is the risk percentage/ percentage of survival for her?
2) What could have triggered this sudden thrombosis? The 2 major changes in this month are: first that she had very high levels of strain suddenly this month and lifted a lot of heavy objects, could this have caused thrombosis? second change is that we discovered that her estrogen levels are very high (1400) and gave her meprate because at 56 she still has not had menopause, could this have caused the thrombosis?
Please help me with the answers