I have had 8 various knock out surgeries from TURBs, hernia repairs, torn wrist ligaments, triple bypass, carotid artery. While I have not experienced what you describe, your citation certainly gives credence to that possibility. Unfortunately, it probably falls under the unforeseen body reactions in surgeries. They all have their risks and some peoples systems I am sure react to different meds in differing ways. Either way, I am sorry to read about your hearing issue.
