“…While there are also studies with lower radiological success rates, different definitions of success and failure complicate comparison [ 8 , 16 ]. Similarly, our clinical success rate of 94.0% was lower than reported success rates from larger established high-volume centers with 96.7–98.7% [ 5 , 7 , 15 , 16 , 17 ]. Regarding complications, we found a slightly higher rate of procedure-related major complications (3.7%) and a higher rate of minor complications (19.4%) compared to reported rates from most large registries (procedure-related major complications 0.4–2.6%, minor complications 1.4–7.2%) [ 5 , 6 , 7 , 8 , 9 , 15 , 16 , 17 , 18 , 19 ].…”