Comparison of CRP Levels, Neutrophil Count, and Clinical Outcomes of Low Dose Ketamine Between at Anesthesia Induction and at the End of Surgery in Patients Undergo Elective Laparotomy

Brief Summary

The effects of anesthesia and surgery can lead to stress responses that result in hormonal and metabolic changes in the body. The immune system and the nervous system communicate both ways, and it was found that nociception and proinflammatory cytokines play a joint regulatory role, i.e., increased production of proinflammatory cytokines can worsen the pain. Major surgery can trigger the release of cytokines such as IL-1, IL-6, and TNF-α.

Intervention / Treatment

This is a double-blind, randomized control trial. It provides a controlled care comparison between low-dose ketamine given at anesthesia induction and at the end-of-surgery.
  • Ketamine 0.3 mg/kg at end-of-surgery (DRUG)
    Ketamine 0.3 mg/kg at end-of-surgery (intravenously)
  • Ketamine 0.3 mg/kg at anesthesia induction (DRUG)
    Ketamine 0.3 mg/kg at anesthesia induction (intravenously)

Condition or Disease

  • General Anesthesia
  • Laparotomy
  • Inflammation

Phase

  • Not Applicable
  • Study Design

    Study type: INTERVENTIONAL
    Status: Completed
    Study results: No Results Available
    Age: 18 Years to 65 Years
    Enrollment: 68 (ACTUAL)
    Funded by: Other
    Allocation: Randomized
    Primary Purpose: Supportive Care

    Masking

    Only care providers involved directly with the subjects in the operating room are not masked.

    TRIPLE:
    • Participant
    • Investigator
    • Outcomes Assessor

    Clinical Trial Dates

    Start date: Jul 27, 2020 ACTUAL
    Primary Completion: Sep 30, 2020 ACTUAL
    Completion Date: Nov 10, 2020 ACTUAL
    Study First Posted: Jul 08, 2020 ACTUAL
    Results First Posted: Aug 31, 2020
    Last Updated: Nov 09, 2020

    Sponsors / Collaborators

    Lead Sponsor: Udayana University
    Responsible Party: N/A

    The effects of anesthesia and surgery can lead to stress responses that result in hormonal and metabolic changes in the body. The immune system and the nervous system communicate both ways, and it was found that nociception and proinflammatory cytokines play a joint regulatory role, i.e., increased production of proinflammatory cytokines can worsen the pain. Major surgery can trigger the release of cytokines such as IL-1, IL-6, and TNF-α.

    The acute analgesic effect of ketamine is generally believed to be mediated through the blockade of the phencyclidine binding site of the N-methyl-d-aspartate (NMDA) receptor of nociceptive neurons. Ketamine can reduce the inflammatory response marked by a decrease in CRP levels to surgical trauma and can prevent secondary damage to tissues/organs that were not initially affected by surgery by reducing inflammation. This also reduces postoperative pain and analgesics.

    Participant Groups

    • Low-dose ketamine (0.3 mg/kg) in 3 ml normal saline solution given at the end of surgery

    • Low-dose ketamine (0.3 mg/kg) in 3 ml normal saline solution given at induction

    Eligibility Criteria

    Sex: All
    Minimum Age: 18
    Maximum Age: 65
    Age Groups: Adult / Older Adult
    Healthy Volunteers: Yes

    Inclusion Criteria:

    1. Patients undergoing elective laparotomy with general anesthesia at Sanglah Hospital from July to September 2020.
    2. Patients aged 18-65 years.
    3. Patient physical status American American Society of Anesthesiologist (ASA) 1 and 2.

    Exclusion Criteria:

    1. Contraindication to ketamine.
    2. Allergy to morphine
    3. Presence of cardiorespiratory chronic diseases.
    4. Presence of autoimmune diseases.
    5. History of the central nervous system or psychiatric disorders.
    6. BMI \<18.5 kg/m2 or ≥30 kg/m2.
    7. A history of chronic pain killer medications (such as opioid or non-steroidal anti- inflammatory drugs)

    Drop Out Criteria

    1. Patients with class 3 bleeding during the surgery
    2. Patients with more than 5-hours duration of surgery
    3. Patients need mechanical ventilation after the surgery

    Primary Outcomes
    • Serum C-reactive protein level

    • Serum C-reactive protein level

    • serum neutrophil-count (from a complete blood count test)

    • serum neutrophil-count (from a complete blood count test)

    • minimum=0; maximum=10; higher score corresponds to more severe pain

    • total morphine consumption in 24 hours after the surgery

    More Details

    NCT Number: NCT04462094
    Acronym: PRO-Ketamine
    Other IDs: UNUD-CTR-FK260620-002
    Study URL: https://clinicaltrials.gov/study/NCT04462094
    Last updated: Sep 29, 2023