Maximal Analgesic Effect Attained by the Use of Objective Neurophysiological Measurements With Closed-Loop Spinal Cord Stimulation.

Objectives: Spinal cord stimulation (SCS) has been challenged by the lack of neurophysiologic data to guide therapy optimization. Current SCS programming by trial-and-error results in suboptimal and variable therapeutic effects. A novel system with a physiologic closed-loop feedback mechanism using evoked-compound action potentials enables the optimization of physiologic neural dose by consistently and accurately activating spinal cord fibers.

Dorsal Root Ganglion Size in Patients With Complex Regional Pain Syndrome of the Lower Extremity: A Retrospective Pilot Study.

Objective: Complex regional pain syndrome (CRPS) is a debilitating chronic condition characterized by severe, nociplastic pain along with various other symptoms. Neuromodulation, particularly electrical stimulation of the dorsal root ganglion (DRG), has emerged as a promising intervention for patients with CRPS unresponsive to conventional treatments. However, little is known about the anatomical characteristics of DRGs in patients with CRPS.

Identifying SCS Trial Responders Immediately After Postoperative Programming with ECAP Dose-Controlled Closed-Loop Therapy.

Introduction: Drawbacks of fixed-output spinal cord stimulation (SCS) screening trials may lead to compromised trial outcomes and poor predictability of long-term success. Evoked compound action potential (ECAP) dose-controlled closed-loop (CL) SCS allows objective confirmation of therapeutic neural activation and pulse-to-pulse stimulation adjustment. We report on the immediate patient-reported and neurophysiologic treatment response post-physiologic CL-SCS and feasibility of early SCS trial responder prediction.

Randomized Placebo-Controlled Trial of 60-Day Percutaneous Peripheral Nerve Stimulation Treatment Indicates Relief of Persistent Postoperative Pain, and Improved Function After Knee Replacement.

Objectives: Total knee arthroplasty (TKA) is an effective surgery for end-stage knee osteoarthritis, but chronic postoperative pain and reduced function affect up to 20% of patients who undergo such surgery. There are limited treatment options, but percutaneous peripheral nerve stimulation (PNS) is a promising nonopioid treatment option for chronic, persistent postoperative pain. The objective of the present study was to evaluate the effect of a 60-day percutaneous PNS treatment in a multicenter, randomized, double-blind, placebo-controlled trial for treating persistent postoperative pain after TKA.

Impact of psychosocial factors on the success of neuromodulation treatment for patients with persistent pain.

Introduction: Significant interindividual variability in spinal cord stimulation (SCS) outcomes exists. Due to its high cost and risks of complications, criteria to guide patient selection for SCS trials and their outcomes would be helpful. With increased focus on the use of patient-reported outcomes to improve care, we aim to evaluate the National Institute of Health Patient Reported Outcome Measurement Information System measures for an association with successful SCS trials in patients with persistent pain.

Durable responses at 24 months with high-frequency spinal cord stimulation for nonsurgical refractory back pain.

Objective: The objective of this study was to evaluate the 24-month durability of pain relief, function, quality of life, and safety outcomes for patients with nonsurgical refractory back pain (NSRBP) treated with high-frequency spinal cord stimulation (SCS) within a large, national, multicenter randomized controlled trial (RCT).

Methods: Following the completion of an RCT comparing high-frequency SCS plus CMM with CMM alone for the treatment of NSRBP, patients gave additional consent for a follow-up extension to 24 months. Presented is the cohort analysis of all patients treated with high-frequency SCS following the optional crossover at 6 months.

Pain Education and Knowledge (PEAK) Consensus Guidelines for Neuromodulation: A Proposal for Standardization in Fellowship and Training Programs.

The need to be competent in neuromodulation is and should be a prerequisite prior to completing a fellowship in interventional pain medicine. Unfortunately, many programs lack acceptable candidates for these advanced therapies, and fellows may not receive adequate exposure to neuromodulation procedures. The American Society of Pain and Neuroscience (ASPN) desires to create a consensus of experts to set a minimum standard of competence for neurostimulation procedures, including spinal cord stimulation (SCS), dorsal root ganglion stimulation (DRG-S), and peripheral nerve stimulation (PNS).

Long-term efficacy of high-frequency (10 kHz) spinal cord stimulation for the treatment of painful diabetic neuropathy: 24-Month results of a randomized controlled trial.

Aims: To evaluate the long-term efficacy of high-frequency (10 kHz) spinal cord stimulation (SCS) for treating refractory painful diabetic neuropathy (PDN).

Methods: The SENZA-PDN study was a prospective, multicenter, randomized controlled trial that compared conventional medical management (CMM) alone with 10 kHz SCS plus CMM (10 kHz SCS+CMM) in 216 patients with refractory PDN. After 6 months, participants with insufficient pain relief could cross over to the other treatment.

Accessibility and Ease of Use in Neuromodulation Devices.

Background: The utilization of neuromodulation therapy continues to grow as therapeutic indications expand. These conditions often present with comorbid physical, visual, and auditory impairments. Patients with disabilities in these categories may have difficulty operating their devices.

Implementation and Preliminary Effectiveness of a Multidisciplinary Telemedicine Pilot Initiative for Patients with Chronic Non-Cancer Pain in Rural and Underserved Areas at a Major Academic Medical Center.

Background: Arkansas lacks adequate access to high-quality pain care, as evidenced, in part, by it having the second highest opioid prescribing rate in the United States. To improve access to high-quality treatment of chronic pain, we developed the Arkansas Improving Multidisciplinary Pain Care and Treatment (AR-IMPACT) Telemedicine Clinic, a multidisciplinary and interprofessional team of specialists who provide evidence-based pain management for patients with chronic pain.

Methods: We conducted a single-arm pilot trial of the AR-IMPACT Telemedicine Clinic with rural, university-affiliated primary care clinics.

Federal and Statewide Coverage for Opioid-Sparing Chronic Pain Treatments.

Background: With increased hospitalizations and deaths related to opioid use disorder, there is an impetus for federal and private insurance companies to provide coverage for integrative treatments that address pain. The Centers for Disease Control and Prevention (CDC) and the current literature recommend that nonpharmacological and nonopioid treatments must be considered for chronic pain management. The continued examination of potential coverage and cost-effectiveness for opioid-sparing alternatives with proven efficacy is critical for physicians who treat chronic pain.

Consensus Guidelines on Interventional Therapies for Knee Pain (STEP Guidelines) from the American Society of Pain and Neuroscience.

Knee pain is second only to the back as the most commonly reported area of pain in the human body. With an overall prevalence of 46.2%, its impact on disability, lost productivity, and cost on healthcare cannot be overlooked.

Workforce solutions to address health disparities.

Purpose Of Review: This review focuses on physician workforce racial & ethnic diversity as a solution to improve perioperative and peripartum health equity.

Recent Findings: Black, Indigenous, and Hispanic physicians remain underrepresented in medicine (URiM) and anesthesiology, and efforts to expand this workforce have had limited impact. Psychological forces, including implicit bias, aversive racism, outgroup bias, racial attention bias, stereotype threat, and imposter syndrome all act to reinforce structural racism and decrease opportunity for advancement.

Do racial and ethnic disparities lead to the undertreatment of pain? Are there solutions?

Purpose Of Review: The current review aims to empower anesthesiologists, specifically pain medicine specialists, to become leaders in ensuring equitable care.

Recent Findings: Disparities in both acute and chronic pain medicine lead to increased morbidity for patients of color. Gaps in care include misdiagnosis or under diagnosis of chronic pain disease states, undertreatment of sickle cell disease and other conditions that are common in minorities, under prescription of opioids, and lack of access to novel opioid sparing treatments.

Lack of Neuromodulation Knowledge Among Rural Family Medicine Residents: A Call for Implementation Research.

Objective: Spinal cord stimulation is a proven, evidence-based therapy for persistent spinal pain syndrome. While some patients with this disease are managed by chronic pain physicians, many are managed in primary care offices. Despite mounting evidence, dissemination of this research outside of neuromodulation related fields and implementation of this treatment in common practice has not yet occurred.

Leveraging the Prescription Drug Monitoring Program to Curb Opioid Prescribing in Arkansas.

Effective means of accurately identifying problematic opioid prescribing are needed. Using an iterative approach with the Arkansas State Medical Board Pain Subcommittee, we modified existing opioid prescriber criteria to create seven metrics to be deployed in Arkansas. These included metrics of dose and days' supply, concomitant use of opioid and benzodiazepines, solid dosage units, and numbers of opioid patients and certain opioid prescriptions.

Treatment of nonsurgical refractory back pain with high-frequency spinal cord stimulation at 10 kHz: 12-month results of a pragmatic, multicenter, randomized controlled trial.

Objective: Spinal cord stimulation (SCS) at 10 kHz (10-kHz SCS) is a safe and effective therapy for treatment of chronic low-back pain. However, it is unclear from existing evidence whether these findings can be generalized to patients with chronic back pain that is refractory to conventional medical management (CMM) and who have no history of spine surgery and are not acceptable candidates for spine surgery. The authors have termed this condition "nonsurgical refractory back pain" (NSRBP) and conducted a multicenter, randomized controlled trial to compare CMM with and without 10-kHz SCS in this population.

Individual and Health Policy Factors Associated With Positive Heroin and Opioid Treatment Response: United States, 2018.

To identify client- and state-level factors associated with positive treatment response among heroin and opioid treatment episodes in the United States. We used national data from 46 states using the Treatment Episode Dataset‒Discharges (2018) to identify heroin and opioid treatment episodes (n = 162 846). We defined positive treatment response as a decrease in use between admission and discharge.

Video-Based, Patient-Focused Opioid Education in the Perioperative Period Increases Self-Perceived Opioid-Related Knowledge: A Pilot Study.

Objective: The aim of this study was to evaluate whether a video-based, patient-focused opioid education tool delivered in the perioperative period would decrease acute and chronic post-operative opioid prescription dispensations and increase self-rated knowledge about opioids.

Methods: We enrolled 110 patients with no reported opioid use in the previous 30 days, undergoing ambulatory surgery for breast, orthopedic, gynecologic, or other outpatient procedures for which opioids would be prescribed. Patients were randomized to receive either post-operative opioid education by the surgical team (control arm) or pre-operative education via a novel 5-minute video plus post-operative education by the surgical team (intervention arm).