1,920
Participants
Start Date
February 29, 2016
Primary Completion Date
November 1, 2017
Study Completion Date
November 1, 2017
"30 group"
A small sphincterotomy (EST) was performed prior to the EPBD, the length of a small sphincterotomy was considered as no larger than the range which from the orifice to the top one-third of the papilla. a CRE balloon (diameter 8, 9, 10, 11, 12, 13.5, 15; Boston Scientific) was chosen according to the diameter of bile duct. It was placed across the papilla orifice and then gradually filled with diluted contrast in 15 seconds. When the waist disappeared, the balloon was inflated till 30 seconds prior deflated. The stones were then retrieved by a basket or retrieval balloon. Mechanical lithotripsy was used if necessary.
"60 group"
A small sphincterotomy (EST) was performed prior to the EPBD, the length of a small sphincterotomy was considered as no larger than the range which from the orifice to the top one-third of the papilla. a CRE balloon (diameter 8, 9, 10, 11, 12, 13.5, 15; Boston Scientific) was chosen according to the diameter of bile duct. It was placed across the papilla orifice and then gradually filled with diluted contrast in 15 seconds. When the waist disappeared, the balloon was inflated till 60 seconds prior deflated. The stones were then retrieved by a basket or retrieval balloon. Mechanical lithotripsy was used if necessary.
"180 group"
A small sphincterotomy (EST) was performed prior to the EPBD, the length of a small sphincterotomy was considered as no larger than the range which from the orifice to the top one-third of the papilla. a CRE balloon (diameter 8, 9, 10, 11, 12, 13.5, 15; Boston Scientific) was chosen according to the diameter of bile duct. It was placed across the papilla orifice and then gradually filled with diluted contrast in 15 seconds. When the waist disappeared, the balloon was inflated till 180 seconds prior deflated. The stones were then retrieved by a basket or retrieval balloon. Mechanical lithotripsy was used if necessary.
"300 group"
A small sphincterotomy (EST) was performed prior to the EPBD, the length of a small sphincterotomy was considered as no larger than the range which from the orifice to the top one-third of the papilla. a CRE balloon (diameter 8, 9, 10, 11, 12, 13.5, 15; Boston Scientific) was chosen according to the diameter of bile duct. It was placed across the papilla orifice and then gradually filled with diluted contrast in 15 seconds. When the waist disappeared, the balloon was inflated till 300 seconds prior deflated. The stones were then retrieved by a basket or retrieval balloon. Mechanical lithotripsy was used if necessary.
The First Hospital of Jilin University, Changchun
Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai
Shandong jiaotong Hospital, Jinan
Tianjin Nankai Hospital, Tianjin
The First Affiliated Hospital, Zhejiang University, Hangzhou
Third Military Medical University, Chongqing
Second Xiangya Hospital, Central South University, Changsha
Union hospital,Tongji medical collage,Huazhong University of science and technology, Wuhan
The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou
The first affiliated hospital of Xi 'an jiaotong university, Xi'an
The first hospital of Lanzhou university, Lanzhou
General Hospital of Ningxia Medical University, Yinchuan
The First Teaching Hospital of Xinjiang Medical University, Ürümqi
The Second Hospital of Hebei Medical University, Shijiazhuang
Taiyuan Iron and Steel Corporation Hospital, Taiyuan
Hepatopancreatobiliary Surgery Institute of Gansu Province
OTHER