Effects of Calot's Triangle Block for Postoperative Analgesia in Patients Undergoing Laparoscopic Cholecystectomy: a Prospective, Randomized, Double-blind, Controlled, Clinical Trial

NCT02300480 Phase 4 UNKNOWN

Chronic pain after laparoscopic cholecystectomy (LC) is a common complication with an incidence ranging between 3-56%. In many cases, however, the cause chronic pain after LC remains unknown and visceral hyperalgesia and central sensitization have been suggested to be part of the pathophysiology. So the purpose of this study is to determine whether Calot's Triangle Block (CTB) combined with patient controlled intravenous analgesia (PCIA) is superior to PCIA in reducing the incidence of chronic pain after LC.

Details

Lead sponsor	First Affiliated Hospital of Chongqing Medical University
Phase	Phase 4
Status	UNKNOWN
Enrolment	140
Start date	2014-12
Completion	2015-11

Conditions

• Post-operative Pain
• Gallstone Disease

Interventions

• CTB group
• PCIA group

Primary outcomes

• Chronic post-surgical pain — 3 months post-operatively
  Chronic post-surgical pain intensity will be measured as more than 3 months by numerical rating scale (NRS) for pain

Countries

China