60
Participants
Start Date
July 28, 2018
Primary Completion Date
September 30, 2018
Study Completion Date
October 27, 2018
Large size tube
Patients in Group A are inserted the large size tube (28F).
Drainage ball
Patients in Group B are inserted the small-bore tube connects with a negative pressure ball(drainage ball).
First Affiliated Hospital, Soochow University, Suzhou
The First Affiliated Hospital of Soochow University
OTHER