Man the last time I was in you were SOL as smoking was my only choice. Get wells soon. In 1975 I had two surgeries for a tumor one was 6 hours and the second was 18 hours. I made it out have a nasty scar on my neck and head but if they could do that back then well I have faith it will be OK. FYI the anesthesiologist was there the whole time on both. No breaks! Make good friends with them they are there to keep you alive. He had a life long friend in me after I found out what he did. Get well soon. Your in my thoughts and prayers.