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Comparison of Intravenous Lidocaine vs Ketamine in Colorectal Surgery

The Effect of Intravenous Lidocaine or Ketamine on Interleukin-6 Levels in Patients Undergoing Colorectal Surgery for Cancer: A Randomized Controlled Trial

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06272461
Enrollment
50
Registered
2024-02-22
Start date
2023-10-01
Completion date
2026-03-30
Last updated
2025-11-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Colorectal (Colon or Rectal) Cancer, Inflammation

Brief summary

Patients undergoing open colorectal surgery were randomly divided into two groups: Intravenous Lidocaine (IV-Lido) vs Intravenous Ketamine (IV-Keta). For the IV-Lido group, patients received a loading dose of Lidocaine than a continuous infusion over twenty-four hours. For the IV-Keta goup, patients received a loading dose of Ketamine than a continuous injection of Ketamine over twenty-four hours. Plasma concentrations of Interleukin-6(IL-6) were measured preoperatively before anesthetic induction and at twenty-four hour post operatively.

Detailed description

Patients undergoing open colorectal surgery with tumor resection were randomised prospectively into two groups: Intravenous Lidocaine (IV-Lido) vs Intravenous Ketamine (IV-Keta). For the IV-Lido group (n=25), patients received a loading dose of 1.5 mg/kg of Lidocaine than a continuous infusion of 1.5 mg/kg/h over twenty-four hours. For the IV-Keta goup(n=25), patients received a loading dose of 0.15mg/kg of Ketamine than a continuous injection of 0.15 mg/kg/h of Ketamine over twenty-four hours. For both groups, plasma concentrations of Interleukin-6(IL-6) were measured preoperatively before anesthetic induction and at twenty-four hour post operatively. Plasma IL-6 concentrations at each point were compared between the groups.

Interventions

DRUGLidocaine IV

Intravenous Lidocaine Vs intravenous Ketamine in colorectal surgery for cancer

Intravenous Lidocaine Vs intravenous Ketamine in colorectal surgery for cancer

Sponsors

University Tunis El Manar
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE (Subject, Caregiver)

Intervention model description

Intravenous Lidocaine vs intravenous ketamine

Eligibility

Sex/Gender
ALL
Age
18 Years to 90 Years
Healthy volunteers
No

Inclusion criteria

* Patients aged 18 or older. * American society of anesthesiologists' (ASA) physical status of I-III. * Elective open colorectal surgery. NON INCLUSION CRITERIA: * Patients with contraindications to lidocaine or ketamine. * Corticosteroid therapy within the last 6 months. * History of immunosuppressive therapy. * History of surgery in the last 3 months. * Personal medical history of inflammatory bowel disease. * Personal medical history of cardiac arrythmias or conduction disorders. * Alcohol or drug abuse. * Chronic use of opioids or benzodiazepines.

Exclusion criteria

* Severe intraoperative complications. * Duration of surgery longer than 5 hours.

Design outcomes

Primary

MeasureTime frameDescription
The variation of Interleukin-6 levels24 hours after surgeryThe difference of Interleukine-6 (IL-6) plasma concentration between baseline values and 24 hours after surgery.

Secondary

MeasureTime frameDescription
Pain assessed by Numerical Rating Scale (NRS)Postoperatively, at Hour 2, Hour 12 and Hour 24. the patient asked to circle the number between 0 and 10:0 usually represents 'no pain at all' whereas 10 represents 'the worst pain ever possible'.Postoperative pain was assessed by the Numerical Rating Scale (NRS)
Post-operative nausea and vomitingDuring the first 24 hours postoperativelyIncidence of post-operative nausea and vomiting during the first 24 hours.
Bowel function.During the first 24 hours postoperativelyTime to return of bowel function.
Hospital length of stay.From date of randomization until the date of to discharge from the hospital assessed up to 15 daysHospital length of stay ( in days)
Post-operative complications.From date of randomization until the date of to discharge from the hospital assessed up to 15 daysIncidence of intrahospital post-operative complications.

Countries

Tunisia

Contacts

Primary ContactBEN ALI MECHAAL, Professor
mechaal_benali@yahoo.fr72100533
Backup ContactKTATA HIBA, Dr
Hibetallah.ktata@fmt.utm.tn72100500

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026