My EP talked me about this alcoholization (I don't know if I wrote it correctly) about two years ago.
He said they were making that for some times with a very good success rate, in Brugge St-Jan, Belgium. I'm not surprised Pr Jaïs talked about that in the first video, Gloaming, since my EP is 'Bordeaux trained" and highly connected with their team.
I think I've already asked here about this ablation of the Marshall vein, but got no as answer, if my memory is good.