<s>[INST] hello, my cousin who is 48 just had an aneurysm they had to put in a valve to drain the fluid from the brain. He is doing fine but has short term memory loss. He doesnt seem to remember what happened earlier that day is this normal and is it temporary or could it be a permanent thing [/INST] Hello, The effects of anesthesia from any type of surgical procedure are well known and especially in the domain of loss of short term memory so if the surgery was recent (past week or so) then, it is perfectly reasonable to attribute this to the effects of anesthesia or other medication given for the procedure which will likely get better with time.  If it is longer ago than that then, one must ask whether or not your cousin ever had a bleed from that aneurysm?  Did it bleed at all during the procedure to install the Chat Doctor.  Hope I have answered your query. Let me know if I can assist you further. </s>