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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03265223
Other study ID # JawaharlalNMC
Secondary ID
Status Completed
Phase Phase 4
First received August 22, 2017
Last updated August 29, 2017
Start date April 1, 2014
Est. completion date August 15, 2017

Study information

Verified date August 2017
Source Jawaharlal Nehru Medical College
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Pain still remains a limiting factor in early discharge of patients undergoing laparoscopic cholecystectomy. Almost all earlier studies done to compare the efficacy of local anaesthetics used intraperitoneally as compared to intraincisionally used equal amounts of drugs at the two locations, usually 10-20 ml. Using this large amount of drug in the small space of intraincisional location as compared to similar amount of drug in large intraperitoneal space created an inadvertent bias in favor of patients receiving the drug intraincisionally so such patients naturally experienced less pain. The investigators decided to standardize the drug used at these two locations as 1ml/cm and conduct a new study comparing the effects of drugs in relieving pain when used at these two locations.


Description:

Aims & Objectives: To conduct a randomized, triple-blind, placebo-controlled study by standardizing dose of local anesthetic, to compare the effectiveness of intraperitoneal against intraincisional use of ropivacaine 0.2% for post-laparoscopic cholecystectomy pain relief.

Materials & Methods: American Society of Anesthesiologists (ASA) physical status I or II patients underwent elective 4 port laparoscopic cholecystectomy by a single surgeon. Anesthetic and surgical techniques were standardized. Patients were randomized using envelope method into 3 groups according to location of drug use. Triple blinding was ensured and envelopes were opened only at the completion of study. All patients received ~23 ml of solution, of which 20 ml was given intraperitoneally [1 ml/cm; 16 ml along right hemi-dome, approximately equal to length of right hemi-dome of diaphragm in an average adult and 4 ml in gall bladder fossa) and ~3 ml intraincisionally (1 ml/cm of length of incision). Controls (n=86) received ~23 ml normal saline (20 ml intraperitoneally and 1 ml/cm intraincisionally) while the intraperitoneal group (n=100) received 20 ml of intraperitoneal instillation of injection ropivacaine 0.2% and 1 ml/cm of normal saline intraincisionally at the end of procedure. Intraincisional group (n=108) received 20 ml normal saline intraperitoneally and 1 ml/cm of injection ropivacaine 0.2% infiltration at incisional site at the end of procedure. All patients received injection diclofenac sodium 75mg/1ml (aqueous) intravenously 12 hourly postoperatively. 5 different pain scales were used for assessment of overall pain. Pain scores were assessed at 5 points of time, that is, at 0.5, 4, 8, 12 and 24 hours postoperatively. Shoulder pain and extra dose of analgesic required (rescue analgesia) were also recorded.


Recruitment information / eligibility

Status Completed
Enrollment 353
Est. completion date August 15, 2017
Est. primary completion date March 31, 2017
Accepts healthy volunteers No
Gender All
Age group 15 Years to 80 Years
Eligibility Inclusion Criteria:

- All patients in the age group of 15-80 years

- Patients conferring to Grade I or II of American Society of Anesthesiologists (ASA) physical status classification system only

- Patients undergoing elective Laparoscopic Cholecystectomy

- Patients having symptomatic cholelithiasis only

- Patients operated by a single surgeon were included.

Exclusion Criteria:

- Patients with known allergic reactions to local anesthetics

- Cases that were converted to open cholecystectomy

- Patients with major intra-operative complications

- Patients suffering from acute cholecystitis, empyema or malignancy of gall bladder, having history of chronic pain or those taking frequent analgesics or opioids pre-operatively

- Patients with peptic ulceration, bleeding disorders, impaired renal and/or hepatic function, and sensitivity to NSAIDs or opioids.

- Patients in whom gall bladder (GB) stones are found incidentally on ultrasonography (USG) (asymptomatic cholelithiasis)

- Patients suffering from severe chronic medical diseases and morbid obesity

- Patients unable to comprehend instructions or having communication problems were excluded from the study.

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
0.2% ropivacaine
Intraperitoneal instillation versus intraincisional infiltration

Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
Jawaharlal Nehru Medical College

Outcome

Type Measure Description Time frame Safety issue
Primary Effect of ropivacaine use intraincisionally versus intraperitoneally as compared to controls on post-laparoscopic cholecystectomy pain To study and assess the effect and impact of using the local anesthetic ropivacaine 0.2%, over controls, on the intensity of postoperative pain in patients undergoing laparoscopic cholecystectomy; and to compare and assess the optimal site i.e. intraincisional versus intraperitoneal of using local anesthetic (ropivacaine) for better post-laparoscopic cholecystectomy pain relief. 36 months
Secondary Identify the component of pain which is dominant after undergoing laparoscopic cholecystectomy To identify the component of pain (visceral versus incisional component) that is dominant after laparoscopic cholecystectomy; and after how much interval of time it assumes importance? 36 months
Secondary Laparoscopic cholecystectomy as day-case using ropivacaine only To strive for making laparoscopic cholecystectomy a truly day case procedure in the public setup of developing countries like India by using this cheap local anaesthetic alone 36 months
Secondary Changing trends in epidemiology of cholelithiasis To check for any changing trends in epidemiology of cholelithiasis in North India 36 months
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