Effect of Butorphanol on Colonoscopy for Patients With Postoperative Visceral Pain

Effect of Butorphanol on Colonoscopy for Patients With Postoperative Visceral Pain

The total incidence of abdominal pain after colonoscopy is almost 50%. Butorphanol is a mixed opioid receptor agonist-antagonist, which has strong sedative and analgesic effects. This clinical study aims to explore the effectiveness and safety of butorphanol combined with propofol for colonoscopy to reduce postoperative visceral pain, and provide a basis for improving the quality of surgery and comfortable medical treatment for patients.

Inclusion Criteria:

• ASA status I-11
• patients performing colonoscopy
• sign the informed consent

Exclusion Criteria:

• BMI>30, pregnant
• diabetes
• depression
• patients dependent on opioids
• hypertension poorly controlled
• serious complications of important organs
• obvious abdominal pain before colonoscopy