Opioid-free Anesthesia in Laparoscopic Cholecystectomies

Brief Summary

The aim of this study will be to investigate the effect of an opioid-free anesthesia regimen with a mixture of dexmedetomidine-lidocaine-ketamine in the same syringe versus fentanyl analgesia in elective laparoscopic cholecystectomies

Intervention / Treatment

  • ketamine-lidocaine-dexmedetomidine (DRUG)
    In the KLD group, patients will be administered 0,25 mcg/kg Dexmedetomidine in 100 mL of normal saline within 10 minutes. Followingly, they will receive 1mL/10 kg of the solution containing ketamine, lidocaine and dexmedetomidine at predefined concentrations. As maintenance, they will be receiving 1mL/10kg/h of the aforementioned solution.
  • Fentanyl (DRUG)
    In the fentanyl group, patients will be administered 2 mcg/kg fentanyl in 100 mL of normal saline within 10 minutes. Followingly, they will receive 1mL/10 kg of normal saline solution 0.9%. As maintenance, they will be receiving 1mL/10kg/h of normal saline solution 0.9%.

Condition or Disease

  • Pain, Postoperative
  • Pain, Acute
  • Pain, Chronic
  • Cholecystectomy
  • Ketamine
  • Dexmedetomidine
  • Lidocaine
  • Central Nervous System Depressants
  • Analgesia
  • Analgesics
  • Analgesic Non-narcotic

Phase

  • Not Applicable
  • Study Design

    Study type: INTERVENTIONAL
    Status: Recruiting
    Study results: No Results Available
    Age: 25 Years to 75 Years
    Enrollment: 70 (ESTIMATED)
    Allocation: Randomized
    Primary Purpose: Prevention

    Masking

    QUADRUPLE:
    • Participant
    • Care Provider
    • Investigator
    • Outcomes Assessor

    Clinical Trial Dates

    Start date: Oct 11, 2021 ACTUAL
    Primary Completion: Jun 30, 2023 ESTIMATED
    Completion Date: Jun 30, 2023 ESTIMATED
    Study First Posted: Oct 22, 2021 ACTUAL
    Last Updated: Feb 23, 2023

    Sponsors / Collaborators

    Lead Sponsor: N/A
    Responsible Party: N/A

    Inadequately treated postoperative pain after laparoscopic cholecystectomy may untowardly affect early recovery and also lead to the development of chronic pain. Laparoscopic surgery is associated with diminished postoperative pain but this does not mean that patients subjected to laparoscopic operations are not in need for analgesia intra- and postoperatively. Pneumoperitoneum can lead to postoperative discomfort and occasionally intense postoperative shoulder pain. Opioid-based analgesia is associated with side-effects, such as respiratory depression, postoperative nausea and vomiting and occasional induction of tolerance and hyperalgesia.

    Therefore, in recent years research has focused on the quest for non-opioid-based regimens for perioperative analgesia in the context of multimodal analgesic techniques. These techniques have been shown to possess significant advantages, such as allowing earlier mobilization after surgery, early resumption of enteral feeding and reduced hospital length of stay. In this context, the intraoperative intravenous injection of lidocaine has been reported to improve postoperative pain control, reduce opioid consumption and improve the quality of postoperative functional recovery after general anesthesia. Intraoperative infusions of ketamine (an N-methyl-D-aspartate receptor inhibitor) have also been correlated with reduced pain scores and a decrease in analgesic requirements postoperatively. Lastly, dexmedetomidine is a highly selective alfa-2 adreno-ceptor agonist that provides sedation, analgesia, and sympatholysis. Its perioperative intravenous administration has been associated with a reduction in postoperative pain intensity, analgesic consumption and nausea. There is insufficient data in literature investigating the effect of combinations of these agents intraoperatively. It would be of interest to demonstrate whether the administration of combinations can be used towards the achievement of a completely opioid-free anesthetic regimen. Additionally, it can be hypothesized that the combination of non-opioid drugs with different targets can lead to enhanced postoperative recovery, an improved opioid-sparing effect and a decrease in the development of chronic pain as compared to the administration of opioids. Therefore, the aim of this study will be to investigate the effect of a combination of intravenous infusions of lidocaine-ketamine-dexmedetomidine versus fentanyl on recovery profile and postoperative pain after elective laparoscopic cholecystectomy.

    Participant Groups

    • combination of ketamine-lidocaine-dexmedetomidine in one syringe

    • syringe of fentanyl

    Eligibility Criteria

    Sex: All
    Minimum Age: 25
    Maximum Age: 75
    Age Groups: Adult / Older Adult
    Healthy Volunteers: Yes

    Inclusion Criteria:

    * adult patients
    * American Society of Anesthesiologists (ASA) classification I-II
    * elective laparoscopic cholecystectomy

    Exclusion Criteria:

    * body mass index (BMI) \>35 kg/m2
    * contraindications to local anesthetic administration or non-steroidal agents administration
    * systematic use of analgesic agents preoperatively
    * chronic pain syndromes preoperatively
    * neurological or psychiatric disease on treatment
    * pregnancy
    * severe hepatic or renal disease
    * history of cardiovascular diseases/ arrhythmias/ conduction abnormalities
    * bradycardia(\<55 beats/minute)
    * drug or alcohol abuse
    * language or communication barriers lack of informed consent

    This clinical trial is recruiting

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    Primary Outcomes
    • pain score by the use of Numeric Rating Scale (NRS) on arrival to PACU, ranging from 0 to 10, where 0 means "no pain" and 10 means "worst pain imaginable"

    • pain score by the use of Numeric Rating Scale (NRS) at discharge from PACU, ranging from 0 to 10, where 0 means "no pain" and 10 means "worst pain imaginable"

    • pain score by the use of Numeric Rating Scale (NRS) 3 hours postoperatively, ranging from 0 to 10, where 0 means "no pain" and 10 means "worst pain imaginable"

    • pain score by the use of Numeric Rating Scale (NRS) 6 hours postoperatively, ranging from 0 to 10, where 0 means "no pain" and 10 means "worst pain imaginable"

    • pain score by the use of Numeric Rating Scale (NRS) 24 hours postoperatively, ranging from 0 to 10, where 0 means "no pain" and 10 means "worst pain imaginable"

    Secondary Outcomes
    • duration of patient stay at PACU

    • sedation will be assessed with a 5-point sedation scale, where: 1, patient perfectly conscious; 2, patient feels a little drowsy; 3, patient seems to be sleeping but immediately reacts to verbal stimulation; 4, patient seems to be sleeping but slowly reacts to verbal stimulation and 5, patient seems to be sleeping and does not react to verbal stimulation but does react to a stimulus such as shaking or pain

    • sedation will be assessed with a 5-point sedation scale, where: 1, patient perfectly conscious; 2, patient feels a little drowsy; 3, patient seems to be sleeping but immediately reacts to verbal stimulation; 4, patient seems to be sleeping but slowly reacts to verbal stimulation and 5, patient seems to be sleeping and does not react to verbal stimulation but does react to a stimulus such as shaking or pain

    • the sevoflurane vaporizer will be weighed before anesthetic induction and at the end of anesthesia and consequently sevoflurane consumption during anesthesia will be determined

    • the time for the first patient request for analgesia will be noted

    • mg of morphine requested during patient PACU stay

    • patients will be followed for cumulative tramadol consumption for 24 hours postoperatively

    • subjective evaluation of sleep quality by patients, based on a sleep questionnaire (evaluation of sleep duration, number of nocturnal awakenings and marking of sleep quality

    • patients will be questioned regarding the time at which they mobilized after surgery

    • patients will be questioned regarding the time they first felt enteral sounds and the time they had their first flatus after surgery

    • satisfaction from postoperative analgesia on a six-point Likert scale with 1 marked as minimal satisfaction and 6 as maximal satisfaction

    • patients will be questioned regarding the time they had their first fluid intake

    • patients will be questioned regarding the time they had their first solid intake

    • duration of hospital stay after surgery in hours

    • dose of required fentanyl intraoperatively to maintain systolic arterial blood pressure and heart rate within the 20% of baseline value

    • patients will be monitored for side-effects of the administered agents intraoperatively

    • patients will be monitored for side-effects of the administered agents postoperatively

    • occurrence of chronic pain at the site of the operation 1 month after surgery, with the use of the Numeric Rating Scale (NRS), at rest and during movement

    • occurrence of chronic pain at the site of the operation 3 months after surgery, with the use of the Numeric Rating Scale (NRS), at rest and during movement

    Other Outcomes
    • time from sevoflurane discontinuation to first patient response (eye opening)

    • time from sevoflurane discontinuation to tracheal extubation

    More Details

    NCT Number: NCT05089526
    Other IDs: lap-chol-opioid free
    Study URL: https://clinicaltrials.gov/study/NCT05089526
    Last updated: Sep 29, 2023