What Are The Side Effects Of Anesthesia?

24year old suffered 2 heart attacks one immedieatly after recieving anesthesia for a cesarian delivery...baby was delivered and they called code blue she later had another heart attack...she was sedated and intinbated... this morning took off sedation and has been over 2 hours and no activity...they are giving her a mri and have said her heart was 2 times its normal size. her blood pressure and heart rate seem to be slowly recovering but she wont wake up, the doctors all say they have never seen this happen. Why could she be not waking......the baby is beautiful and health but she is not responding do you know any reasons please?