The Effect of Perioperative Intravenous Lidocaine Infusion on Opioid Consumption After Lumbar Spine Surgery

January 27, 2023 updated by: Tim Dominick, University of Vermont Medical Center

The purpose of this study is to determine whether an infusion of lidocaine during surgery can reduce the need for postoperative opioid pain medication use in patients undergoing lumbar spine surgery.

Participants will be recruited by spine surgeons from their pool of patients who are presenting for surgery at University of Vermont Medical Center. If they agree to participate, patients will be assigned at random to receive either an infusion of lidocaine during surgery, or an infusion of saline with 5% dextrose. Subjects will also be asked to complete a 15-item questionnaire that asks about health, quality of life, and level of pain, at three timepoints. Patients will also be asked to rate their level of pain at multiple timepoints after surgery, and we will collect the additionally data from patients' medical records.

Study Overview

Detailed Description

Lidocaine has analgesic and anti-inflammatory effects. It has been shown to reduce early postoperative pain and nausea. Additionally, lidocaine has been shown to have positive effects in the recovery of bowel function, with a reduction in time to first flatus, first bowel sounds, first bowel movement, and is associated with a reduction of ileus. Because of these facts, lidocaine infusion has become part of enhanced recovery pathways after bowel surgery at our institution and others.

There are few trials examining the use of lidocaine for orthopedic procedures and many of these studies have contradictory adults. An article by Martin et al. found no benefit in pain or recovery after total hip arthroplasty. By contrast, Farag and colleagues found that lidocaine significantly improves postoperative pain after major spine surgery. Additionally, quality of life scores at one and three months after surgery were significantly higher in the lidocaine group. When our Spine Surgery Analgesic Protocol for major spine surgery at University of Vermont Medical Center was revised in 2015, a lidocaine infusion was added to the protocol.

Studies for lidocaine use in minor lumbar surgery are scant. In one study of 50 patients in Korea, patient pain scores and fentanyl consumption were significantly lower in the lidocaine infusion group (1.5 mg/kg bolus plus 2 mg/kg/hr infusion) at 2, 4, 8, 12 and 24 hours after surgery. Of note, the Cleveland Clinic Outcomes group is currently enrolling 440 patients in a study in which half will receive lidocaine and ketamine infusions.

A reduction in opioid use may lead to the potential reduction of opioid-related side effects, such as nausea, constipation, and hyperalgesia, as well as more serious consequences such as respiratory depression and abuse. There is also the possibility of a length of stay reduction which has potential financial benefits.

This is a randomized, controlled, double-blind study involving patients undergoing one- or two-level posterior lumbar instrumented spinal fusion with or without decompression.

The University of Vermont Medical Center operating rooms will be utilized for this investigation. For the study group, we plan to prospectively recruit 140 patients 18-75 years of age. Recruitment will be done by the participating orthopedists and neurosurgeons, from their own patients. After an informed consent discussion, patients will be randomly assigned to receive 1 mg/kg lidocaine bolus and intraoperative infusion of 2 mg/min (intervention arm) or no lidocaine (control arm). All patients will receive adequate pain control medication according to their needs. Subjects will complete the 15-question Quality of Recovery assessment at baseline and at 36 and 60 hours after surgery. Using the electronic medical system, the following information with extracted: Total morphine equivalent used in house at 36 hours, total morphine equivalents used at 60 hours, visual analog scale pain scores at 4, 8, 12, 24, 36, and 60 hours, length of stay, incidence of nausea requiring medication, time to first flatus, and time to first bowel movement. Subjects will receive a patient-controlled analgesia pump for the first 36 hours after surgery.

Randomization will be performed by the University of Vermont Medical Center Investigational Pharmacy Drug Service (IDS). IDS will generate a table of random numbers and assign those numbers in a 1:1 ratio of active drug to placebo, in blocks of 4. Following informed consent, a member of the study team will notify IDS, which will prepare syringes for the bolus dose and a bag for the infusion, both containing either active drug or placebo. The syringes and bag will be labeled with the subject's name, medical record number, and randomization number.

Study Type

Interventional

Enrollment (Actual)

61

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Vermont
      • Burlington, Vermont, United States, 05401
        • University of Vermont Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 75 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patient undergoing one- or two-level posterior lumbar fusion with or without decompression at University of Vermont Medical Center
  • 18-75 years of age
  • Signed consent form

Exclusion Criteria:

  • Allergy to lidocaine
  • Contraindication to lidocaine, such as substantial hepatic impairment (alanine aminotransferase or aspartate transaminase more than twice normal), renal impairment (serum creatinine >2 mg/dl)
  • Seizures or a history of seizure disorder
  • Congestive heart failure
  • Arrythmias
  • Chronic opioid use >45 mg morphine equivalent per day
  • Trauma patients
  • Inter-body fusions
  • Severe psychiatric comorbidities
  • Planned epidural anesthesia or analgesia

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: QUADRUPLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: Intravenous Lidocaine Infusion
Patients will be randomly assigned to receive 1 mg/kg lidocaine bolus and intraoperative infusion of 2 mg/min.
Patients will be randomly assigned to receive 1 mg/kg lidocaine bolus and intraoperative infusion of 2 mg/min.
Other Names:
  • IV Lidocaine Infusion
PLACEBO_COMPARATOR: Placebo Infusion
Patients will be randomly assigned to receive a 1mg/kg bolus of water with 5% dextrose and an intraoperative infusion of 2mg/min. of water with 5% dextrose.
Patients will be randomly assigned to receive a 1mg/kg bolus of water with 5% dextrose and an intraoperative infusion of 2mg/min. of water with 5% dextrose
Other Names:
  • Placebo
  • Control
  • Comparator

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Total morphine equivalent consumed at 24 hours after surgery
Time Frame: 24 hours postoperatively
Subjects will receive a patient-controlled analgesia pump for the first 24 hours after surgery. Total morphine equivalent will be calculated according to the Centers for Disease Control and Prevention conversion factor for calculating morphine milligram equivalents.
24 hours postoperatively

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Total morphine equivalent consumed at 48 hours after surgery
Time Frame: 48 hours postoperatively
Electronic medical records will be reviewed to total opioids received after the patient-controlled analgesia pump is discontinued. Total morphine equivalent will be calculated according to the Centers for Disease Control and Prevention conversion factor for calculating morphine milligram equivalents.
48 hours postoperatively
Pain score 4 hours post-operation
Time Frame: 4 hours postoperatively

Visual analog scale pain scores 4 hours after the end of the operation.

The visual analog scale is presented as a 100-mm horizontal line on which the patient's pain intensity is represented by a point between the extremes of "no pain at all" and "worst pain imaginable." The patient marks a point on the line that matches the amount of pain they feel.

0 = no pain 100 = worst pain imaginable

4 hours postoperatively
Pain score 10 hours post-operation
Time Frame: 10 hours postoperatively

Visual analog scale pain scores 10 hours after the end of the operation.

The visual analog scale is presented as a 100-mm horizontal line on which the patient's pain intensity is represented by a point between the extremes of "no pain at all" and "worst pain imaginable." The patient marks a point on the line that matches the amount of pain they feel.

0 = no pain 100 = worst pain imaginable

10 hours postoperatively
Pain score 24 hours post-operation
Time Frame: 24 hours postoperatively

Visual analog scale pain scores 24 hours after the end of the operation.

The visual analog scale is presented as a 100-mm horizontal line on which the patient's pain intensity is represented by a point between the extremes of "no pain at all" and "worst pain imaginable." The patient marks a point on the line that matches the amount of pain they feel.

0 = no pain 100 = worst pain imaginable

24 hours postoperatively
Pain score 48 hours post-operation
Time Frame: 48 hours postoperatively

Visual analog scale pain scores 48 hours after the end of the operation.

The visual analog scale is presented as a 100-mm horizontal line on which the patient's pain intensity is represented by a point between the extremes of "no pain at all" and "worst pain imaginable." The patient marks a point on the line that matches the amount of pain they feel.

0 = no pain 100 = worst pain imaginable

48 hours postoperatively
Quality of Recovery Score 36 hours post-operation
Time Frame: 36 hours postoperatively
Subjects will complete the 15-question Quality of Recovery 36 hours after the end of surgery. Scores will be compared to the baseline taken in the pre-operative hold area.
36 hours postoperatively
Quality of Recovery Score 48 hours post-operation
Time Frame: 48 hours postoperatively
Subjects will complete the 15-question Quality of Recovery 48 hours after the end of surgery. Scores will be compared to the baseline taken in the pre-operative hold area.
48 hours postoperatively
Length of Stay
Time Frame: During hospitalization, approximately 5 days
Length of stay in the hospital, defined as time between admission and discharge. Unit of measure: Days.
During hospitalization, approximately 5 days
Incidence of nausea
Time Frame: During hospitalization, approximately 5 days
A count of the incidences of treatment of nausea with medication.
During hospitalization, approximately 5 days
Time to first flatus
Time Frame: 96 hours postoperatively
Time of first flatus will be recorded by floor nurses and extracted from the electronic medical record. Unit of measure: Hours.
96 hours postoperatively
Time to first bowel movement
Time Frame: 96 hours postoperatively
Time of first bowel movement will be recorded by floor nurses and extracted from the electronic medical record. Unit of measure: Hours.
96 hours postoperatively

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Timothy Dominick, MD, Anesthesiologist
  • Principal Investigator: David Lunardini, MD, Orthopedic Surgeon

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (ACTUAL)

June 4, 2018

Primary Completion (ACTUAL)

October 14, 2019

Study Completion (ACTUAL)

October 14, 2019

Study Registration Dates

First Submitted

June 13, 2018

First Submitted That Met QC Criteria

August 8, 2018

First Posted (ACTUAL)

August 10, 2018

Study Record Updates

Last Update Posted (ACTUAL)

January 31, 2023

Last Update Submitted That Met QC Criteria

January 27, 2023

Last Verified

January 1, 2023

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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