Hi Ruby,
I was treated by Prof. Rene Chapot in 2018. Have story posted here on this portal: Cured AVM with staged embolisation by prof. Rene Chapot at Alfried Krupp Hospital in Essen, Germany
Happy to talk to you if you would like to hear more details.
You can also watch some surgeries I found professor was streaming online for one of the conferences:
https://alice-the-course.info/live-cases-2018