“…However, the most feared complication related to EUS is perforation, with a reported incidence between 0.075% following diagnostic procedures to 0.25% following interventions. [ 2 ] Duodenal perforation is the most common type, accounting for 6 out of 10 cases in a German study,[ 3 ] the most important responsible factors being, besides the physical characteristics of the echoendoscopes[ 4 ] (lack of forward viewing, higher rigidity and stiffness of the scope tip, larger diameter compared to gastroscopes or even duodenoscopes, longer nonflexible section just proximal to the transducer, and presence of a rigid segment containing the transducer that extends beyond the optical lens), also the significantly longer duration of the EUS examination compared with standard upper digestive endoscopy. [ 5 ] Moreover, patients who undergo EUS-FNA are approximately 10 times more likely to suffer complications following EUS compared to patients undergoing diagnostic noninterventional EUS,[ 6 ] with most of the fatal complications occurring after examinations by endoscopists who have performed fewer than 300 EUS procedures.…”