14th Experts Live CTO September 2nd - 3rd, 2022 - Mainz, Germany Main Session - Session 5: Retrograde – Technical aspects Connection Failure – Antegrade preparation is essential Andrea Gagnor, Turin, Italy Room: Guteberg Hall (Auditorium) - Saturday 10:35 Chairmen: Alfredo Galassi, Palermo, Italy; Dimitrios Karmpaliotis, Morristown, USA; Nicolaus Reifart, Königstein, Germany