Hi Christine. Thanks so much for replying!
I don't get the impression this is a new procedure as such. After a good deal of research and now your reply here, I'm beginning to wonder if this isn't our surgeon's personal 'belt and braces' approach to try and ensure a successful flap. But it appears that success rates are normally very high anyway (well into the 90s percentile). Across the globe the procedure does seem to be the a well established one and all descriptions seem to be identical with the exception of this 'heated room' step. Her team (oncology, plastics, anesthetics and physio) do seem well linked up and I believe they work together frequently.
I appreciate you taking the time to reply and reading your medical bio above I'm in awe of your strength! Best wishes to you!