To explore the differences between the different difficulty of endoscopic retrograde cholangiopancreatography (ERCP) ERCP operation and the success rate,operation time, and complications of ERCP;

A retrospective analysis was made of 1047 patients who underwent ERCP in the Department of Gastroenterology, Xinjiang Uygur Autonomous Region People's Hospital from January 2009 to December 2018. According to the difficulty classification of ERCP, the patients were divided into four grades. The success rate of ERCP intubation, operation time, and incidence of complications was compared between them;

According to the difficulty classification of ERCP operation, 1047 cases were divided into four grades, including 42 cases of grade 1, 813 cases of grade 2, 188 cases of grade 3 and 4 cases of grade 4. The success rate of intubation in Grade 1-3 cases was 95% or more, with no statistical significance, while the success rate of grade 4 intubation was only 50%. There was a significant difference between grades 1, 2, and 3 (P＜0.05). The operation time gradually increased from level 1 to 4, and there was a significant difference between different levels (P＜0.05). The incidence of complications increased with the degree of difficulty. There was a considerabl difference between grade 1 and grade 3 (P＜0.05), and there was no significant difference between grade 3 and grade 4;

As the level of ERCP operation rises, the success rate of intubation decreases, the operation time increases, and the incidence of complications increases. Therefore, it is essential to carry out the graded operation by physicians to reduce the risk of process and complications.