Resection Location of Rectum in Laparoscopic Surgery for Slow Transit Constipation

High Resection vs. Low Resection of Rectum in Laparoscopic Total Colectomy for Slow Transit Constipation

Study the recurrence rate of constipation after laparoscopic total colectomy with high resection or low resection of rectum

The investigators are going to study the recurrence rate of constipation after laparoscopic total colectomy with high resection or low resection of rectum. High resection is defined as resection at 12~15cm from anus and low resection as 6~8cm.

Inclusion Criteria:

• Diagnosed as constipation according to Rome IV criteria
• Diagnosed as slow transit constipation
• With more than 2 years' drug treatment or with outlet obstruction or with surgical history

Exclusion Criteria:

• Colon cancer
• History of colon, rectum, anus surgery
• With severe cardio, renal, neural disease
• Pregnant patients