A Randomized Controlled Trial Comparing the Effect of Erector Spinae Plane Blocks Versus High Volume Local Infiltration Analgesia on Pain, Inflammation and Cognitive Outcomes Following Thoraco-Lumbar Fusion Surgery
Overview
- Phase
- Phase 2
- Intervention
- Group GA: General anesthesia only
- Conditions
- Postoperative Delirium
- Sponsor
- Rashmi Mueller
- Enrollment
- 29
- Locations
- 1
- Primary Endpoint
- Comparison of Quality of Recovery (QoR-15) Scores Between Treatment Groups
- Status
- Completed
- Last Updated
- 2 months ago
Overview
Brief Summary
The proposed intervention will examine two alternative methods for postoperative pain control. Two treatment arms of this study will include subjects who receive an erector spinae block (ESP) after induction of anesthesia but prior to the start of surgery and subjects who will receive a high volume of local anesthetic infiltration at the end of the procedure before emergence from anesthesia. The control group of subjects will undergo spinal surgery with general anesthesia but without any regional anesthesia. Outcome measurements include evaluation of serum inflammatory markers, pain scores, opioid usage and standardized evidence-based assessment methodologies.
Detailed Description
Treatment arms include: * Group ESP (Erector Spinae Plane). This group receives general anesthesia with ESP (Erector Spinae Block) regional pain block prior to incision. * Group LIA (Local Infiltration Anesthesia). This group receives general anesthesia and surgical procedure will take place as planned. Prior to being awakened, the area of procedure will be infiltrated using local anesthetic (LIA). * Group GA. This group receives general anesthesia (GA) only and surgical procedure will follow standard conditions. Pre-procedure activities for all groups will include survey evaluations. If the surveys demonstrate pre-procedure cognitive deficits, the subject's participation will cease. All subjects who do not display deficits will complete baseline evaluations that include social history, pain medication history and rate their pain (scored from 1 to 10). The subjects will be randomized to a treatment group. Once the subject is asleep and prior to incision, laboratory blood tests will be drawn and again approximately 24 hours after the subject is received into the recovery unit. Following their surgical procedure, pain control for all subjects will be at the discretion of their primary care team. However, as part of the study, the amount of opioid medications required to control their pain and their pain rating score for the first 72 hours post surgery will be collected from the subject's medical record unless discharged from the hospital before this cutoff time. On post-operative days when subject remains in the hospital facility, repeat survey evaluations will be carried out and during the first 7 days of the subject's hospital stay and unanticipated event will be recorded from the subject's medical record.
Investigators
Rashmi Mueller
Clinical Associate Professor
University of Iowa
Eligibility Criteria
Inclusion Criteria
- •for all groups:
- •Age: Greater than 18 years but less than 80
- •Surgical procedure: 1 to 2 level thoraco-lumbar fusion between T8 and S2; non-emergent surgery
- •Opioid naive (less than 6 oxycodone/day or 30 mg oxycodone equivalent)
- •No contraindication to local anesthetics or regional procedures.
Exclusion Criteria
- •for all groups:
- •Emergency surgery
- •Allergy to study medications
- •BMI less than 20 or greater than 50
- •Major liver or kidney dysfunction or other pre-existing major organ dysfunction
- •Revision surgery
- •Opioid tolerant (60 mg morphine equivalents/day for 1 week) or narcotic dependence (opioid intake morphine equivalent greater than10 mg/day for more than 3 months)
- •Other sources of chronic pain (e.g. fibromyalgia)
- •Patients with associated significant central nervous system (CNS) or respiratory disease (home oxygen use)
- •Pre-operative neurological deficits
Arms & Interventions
Group GA: General anesthesia only
This group receives general anesthesia only and surgical procedure will follow standard conditions.
Group ESP: Erector Spinae Block
This group receives general anesthesia with regional pain block (Erector Spinae Block) prior to incision.
Intervention: Erector Spinae Block
Group LIA: Local Infiltration
This group receives general anesthesia and surgical procedure will take place as planned. Prior to being awakened, the area of procedure will be infiltrated.
Intervention: Local infiltration with local anesthetic
Outcomes
Primary Outcomes
Comparison of Quality of Recovery (QoR-15) Scores Between Treatment Groups
Time Frame: Change from pre-operation score to 1 day after surgery date
The Quality of Recovery-15 (QoR-15) is a patient reported assessment aimed to validate the patients recovery following surgical intervention. The subject is asked to provide a quantitative number to a series of questions. The answers are rated on a scale from 0 to 10, where 0 = none of the time and 10 = all of the time. The scores for all of the questions are summed and comparison between the treatment groups will be assessed.
Quantitate the Change in Delirium Symptoms; Pre- to post-operative day 1
Time Frame: Change from pre-operation score to 1 day after surgery date
Potential new onset of delirium following surgical procedure will be assessed using the standardized 3D CAM ASSESSMENT (3-Minute Diagnostic Interview for the Confusion Assessment Method (CAM)). The subject is asked a series of questions and their responses are recorded. This structured mental status assessment is designed to detect the presence or absence of delirium. "The CAM algorithm is considered positive if the following features are present: Feature 1) Acute onset or fluctuating course and Feature 2) Inattention and either Feature 3) Disorganized thinking or Feature 4) Altered level of consciousness." Comparison between the treatment groups will be assessed and the presence of post-operative delirium reported. Reference: Marcantonio et al., (PMID: 25329203) and training manual.
Secondary Outcomes
- Quantitate the Change in Delirium Symptoms; Pre- to post-operative day 3(Change from pre-operation score to 3 days after surgery date)