nerve damage

On December 23 2008 I underwent a left side endarterectomy, the doctor said the operation was a "little difficult" apparently my wife said that my hair on my left side was covered in blood. Upon awakening from the surgery I had a terrible sore throat and could not talk. The pain in my throat is like pharyngitis multiplied by ten. My moth is bone dry, my left ear aches real bad, and I cannot talk, voice is gone. Went to Hershey med and thay did a video of my throat. One of my vocal chords is paralyzed, ther is muscle degeneration on the left side and the laryngeal nerve is probably damaged. Prognosis, not good. I can live without the voice but not with the throat and mouth pain. Could something have happenned during the surgery? I am 65 and also went through a quad heart bypass in May of 2008.