I assume the reports we are receiving in New Zealand are the same as in the UK.
The reports here state he arrived at the second hospital in Grenoble in a coma and suffered a hemorrhage. I think it can be safely assumed surgery would have been to release pressure on the brain. There's been no reports over here of his coma being induced.
Think the best people. To help, I used to race Class 4 Karts along with a close friend. We both had our share of accidents, often during road races, he had a shocker, a full month in a coma (not induced). We're both still here and shoot Small Bore Prone, much safer. He's completely unaffected and is as silly as he's always been.