My dad had rhuematic fever when he was young. He has already had open heart surgery to replace the aortic valve in his heart, about a year ago. He was recently put in the hospital for a pulmonary embolism and while he was there, the drs think he may have had 2 seizures. When the nurses came in one night to check on him, he was awake but unresponsive and he was drooling and his pupils were dialated and he just stared around the room. The next morning he does not remember anything that happened. The next night he ripped his IV out of his arm and went into the hallway and when his nurses tried to help him back to bed he started trying to hit them. They gave him a sedation medicine and he does not remember any of this and he also does not remember anything that happened friday before 12 pm and l had conversations with him and everything. The drs do not really know if he has been having seizures or not. They say it sounds like a seizure or a stroke but nothing shows up on his tests. This is been going on for a long time and no one seems to know what is wrong with him. Does anyone know if rhuematic fever can have these long term effects or something that may be causing this? l just want him to get better.

l do not believe rheumatic fever would be causing seizures or behavioral issues. What kind of diagnostic tests have they done on him?