Would Kepra, Hydrocodone And Xanax Cause Aneurysm?

my wife erica rittenhouse just died on july 24th 2012. i was hospitalized and i woke up in the morning and found her to be unresponsive and foam was out of her mouth, i ran for help and they called code blue, three days later in icu , she was hooked to a ventilator and according to the doctor she suffered a anuyerism and the pressure was building in her brain causing her death. im deeply saddened by this and torn, and scarred, and i wanted to know is her taking medications such as kepra for seizures, hydrocodone for pain, and xanax for anxiety would cause this in her.