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Mehul J Desai,1,2 Nasir Khatri,3,4 Jonathan M Hagedorn,5 Natalie Strand,6 Ryan S D’Souza,7 Vinicius Tieppo Francio,8 Alaa Abd-Elsayed,9 David W Lee,10 Erika Petersen,11 Johnathan H Goree,12 Jacqueline S Weisbein,13 Timothy R Deer14 1International Spine, Pain & Performance Center, Washington, DC, USA; 2George Washington University, School of Medicine & Health Sciences, Washington, DC, USA; 3University of Kansas, Department of Anesthesiology, Kansas City, KS, USA; 4Novant Spine Specialists, Division of Interventional Pain Medicine, Charlotte, NC, USA; 5iSpine Pain Physicians, Maple Grove, MN, USA; 6Mayo Clinic, Division of Pain Medicine, Phoenix, AZ, USA; 7Mayo Clinic, Department of Anesthesiology, Rochester, MN, USA; 8University of Kansas, Department of Rehabilitation Medicine, Kansas City, KS, USA; 9University of Wisconsin, Department of Anesthesiology, Madison, WI, USA; 10Fullerton Orthopedic Surgery Medical Group, Fullerton, CA, USA; 11University of Arkansas, Department of Neurosurgery, Little Rock, AR, USA; 12University of Arkansas, Department of Anesthesiology, Little Rock, AR, USA; 13Interventional Pain Management, Napa Valley Orthopaedic Medical Group, Napa, CA, USA; 14Spine & Nerve Centers of the Virginias, Charleston, WV, USACorrespondence: Mehul J Desai, International Spine, Pain & Performance Center, 2021 K St NW Suite 615, Washington, DC, 20006, USA, Email drdesai@isppcenter.comAbstract: Social media has revolutionized internet communication and become ubiquitous in modern life. Though it originated as a medium for friendship, social media has evolved into an ideal venue for professional networking, scientific exchange, and brand building. As such, it is a powerful tool with which interventional pain physicians should become familiar. However, given the permanence and visibility of online posts, it is prudent for interventional pain physicians to utilize social media in a manner that is consistent with the ethical and professionalism standards to which they are held by their patients, employers, peers, and state medical boards. While there are extensive publications of professional codes of conduct by medical societies, there is a paucity of literature regarding social media best practices guidelines. Further, to date there have been no social media best practices recommendations specific to interventional pain medicine physicians. While not exhaustive, the aim of this document is to provide recommendations to pain physicians on how to maintain an effective professional and ethical online presence. Specifically, we provide guidance on online persona and professional image, patient–physician interactions online, patient privacy, industry relations, patient education, and brand building.Keywords: professionalism, social media, ethics, best practices, LinkedIn, Instagram, Twitter, Facebook

Sayed D, Grider J, Strand N, et al. J Pain Res. 2022;15:3729-3832. The authors have advised that there is an error in Table 32 on page 3797. Row six Gilligan et al 2021, fourth column level of evidence, the text “I-C” should read “I-A”. The correct Table 32 is as follows. Table 32 Evidence Summary for Multifidus Activation via Medial Branch Nerve Stimulation The authors apologize for this error.

Spinal cord stimulation (SCS) is considered an effective interventional nonpharmacologic treatment option for several chronic pain conditions. Here we present the effects of the novel evoked compound action potential (ECAP) controlled closed-loop (ECAP-CL) SCS system on long-term sleep quality outcomes from the EVOKE study.The EVOKE study is a double-blind, randomized, controlled clinical trial conducted at 13 sites in the United States (N = 134 patients). The clinical trial utilized SCS to manage chronic pain and compared novel ECAP-CL technology to open-loop SCS. Additionally, sleep quality data was collected using the Pittsburgh Sleep Quality Index (PSQI) at baseline and all study visits.The mean PSQI global score for ECAP-CL patients at baseline was 14.0 (n = 62; ± 0.5, SD 3.8), indicating poor sleep quality. Clinically meaningful and statistically significant reductions (p 0.001) in the global PSQI scores were noted at 12 months (n = 55; 5.7 ± 0.6, SD 4.2). A total of 76.4% of ECAP-CL patients met or exceeded Minimal Clinically Important Difference from baseline in PSQI at 12 months. Additionally, 30.9% of ECAP-CL patients achieved "good sleep quality" scores (PSQI ≤ 5), and 29.1% achieved sleep quality remission. "Normative" sleep scores were observed in 29.6% of ECAP-CL patients at 12 months, and these scores were better than the US general population. Additionally, ECAP-CL patients achieved statistically significant changes from baseline (p 0.01) across all seven subcomponent scores of PSQI at 12 months.ECAP-CL SCS elicits consistent neural activation of the target leading to less variability in long-term therapy delivery. In the EVOKE study, this resulted in ECAP-CL patients demonstrating clinically superior and sustained pain relief. Results from this study provide new evidence of long-term improvement in sleep quality and quantity in patients with chronic pain resulting from the use of this novel ECAP-CL SCS technology.The Clinicaltrials.gov registration number for the study is NCT02924129.

Background and aims: PDN can lead to severe deterioration in quality of life. While published data demonstrate 10kHz SCS provides substantial refractory pain relief and neurologic improvement for PDN patients1, here we report durability of these outcomes. Methods: Prospective, multicenter, RCT to document the impact of 10kHz SCS on PDN. Participants had PDN symptoms ≥12 months (M) , refractory to medications, lower limb pain intensity ≥5cm (0-10cm visual analog scale [VAS]) , and hemoglobin A1c ≤10%. Patients (N=216) were allocated 1:1 to 10kHz SCS (Nevro Corp.) plus conventional medical management (CMM) or CMM alone with optional crossover at 6 M. Results: The 10kHz SCS patients maintained substantial pain relief from 3 M, averaging 81.9% (95%CI 77.3 - 86.5) decrease at 24 M. At 6 M follow up, 0% of 10kHz SCS participants but 93% of eligible CMM patients elected to crossover. After SCS, both groups reported similar significant improvements in pain, sleep disturbance, and in pain interference with mood and daily activities (see Figure 1) . There were no stimulation-related neurological deficits and 6 total explants (3.9%) , 5 due to procedure-related infections and 1 as a precaution for endocarditis. Conclusions: The largest RCT to date of SCS management of PDN demonstrates safety, durable pain relief and neurologic improvement over 24 months with 10 kHz SCS. Disclosure E. Petersen: Consultant; Abbott, Biotronik, Boston Scientific Corporation, Medtronic, Nalu, Neuros Medical, Nevro Corp., Presidio, Saluda Medical, Vertos Medical Inc., Research Support; Medtronic, Neuros Medical, Nevro Corp., ReNeuron, Saluda Medical, SPR, Stock/Shareholder; neuro42, SynerFuse. C. Yu: Consultant; Boston Scientific Corporation, Nevro Corp., Research Support; Nevro Corp. A. Nairizi: Consultant; Nevro Corp. D. G. Patterson: Advisory Panel; AIS, Consultant; Pajunk Medical, Other Relationship; Abbott, CornerLoc, Flowonix, Saluda Medical, Vertiflex, Vertos, Vivex Biologics, Research Support; Nevro Corp., Speaker’s Bureau; AbbVie Inc., Lundbeck. V. Galan: None. R. Bundschu: None. N. Mehta: Consultant; Nevro Corp. D. Sayed: Consultant; Nevro Corp. D. Dibenedetto: None. K. A. Sethi: None. P. W. Wu: None. T. G. Stauss: None. C. Argoff: Consultant; Nevro Corp. C. E. Nasr: Advisory Panel; Exelixis, Horizon Therapeutics plc, Neurogastrx, Nevro Corp., Research Support; Siemens. R. Taylor: Consultant; Nevro Corp. D. L. Caraway: Employee; Nevro Corp. J. A. Scowcroft: Research Support; Boston Scientific Corporation, Nevro Corp., Saluda Medical. E. Brooks: Employee; Nevro Corp., Presidio Medical, Stock/Shareholder; Nevro Corp., Presidio Medical. J. L. White: Advisory Panel; Nevro Corp. S. M. Sills: None. K. Amirdelfan: Consultant; Nevro Corp. M. Guirguis: Advisory Panel; Averitas Pharma, Inc., Boston Scientific Corporation, Pacira BioSciences, Inc., Consultant; Avanos Medical, Inc., Nevro Corp., OmniaMed, Saluda Medical. J. Xu: None. Funding Nevro Corp.

Well-designed instructional programs seamlessly promote human performance. Students are often unaware of countless iterations of formative evaluation completed to improve effectiveness, efficiency, motivation, and flow of that instructional design. This paper examines one research-based, comprehensive, systematic evaluation approach as applied by students through two case studies where they evaluated instructional design at a macro level of real-world training programs. The 10-Step Evaluation for Training and Performance Improvement (Chyung 2019) was piloted in a graduate-level instructional design and technology class. Lessons learned include evaluators recognizing the importance of honing in on the questions to ask to determine the dimensions to evaluate while remaining unbiased with their assumptions. For example, results from the first case initially focused on a summative evaluation that hypothesized that the program should be discontinued. Conversely, that case actually uncovered unanticipated findings that resulted in recommendations for the program to be revamped in an effort to continue improvement of human performance.

Johnathan H Goree,1 Corey Hayes,2 Erika Petersen,3 Geoffrey Curran4 1Department of Anesthesiology, University of Arkansas for Medical Sciences, Little Rock, AR, USA; 2Department of Biomedical Informatics, University of Arkansas for Medical Sciences, Little Rock, AR, USA; 3Department of Neurosurgery, University of Arkansas for Medical Sciences, Little Rock, AR, USA; 4Center for Implementation Research, University of Arkansas for Medical Sciences, Little Rock, AR, USACorrespondence: Johnathan H Goree, Department of Anesthesiology, University of Arkansas for Medical Sciences, 4301 W. Markham #515, Little Rock, AR, 72205, USA, Email jhgoree@uams.eduObjective: 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. We hypothesize that family medicine residents in rural training programs will have little knowledge of neuromodulation despite it being an evidence-based and common treatment of post-laminectomy syndrome.Materials and Methods: Online surveys were sent to family medicine residents in six rural family medicine training programs at the University of Arkansas for Medical Sciences Regional Programs to characterize knowledge of neuromodulation as a treatment for post-laminectomy syndrome.Results: Forty-one percent of responding rural, Arkansas family medicine residents reported treating post-laminectomy syndrome during their training, yet only 10% have referred a patient for neuromodulation consultation. Residents rated their knowledge of neuromodulation/spinal cord stimulation at 19 on a scale of 0 (no knowledge) to 100 (extensive knowledge).Conclusion: Despite proof that neuromodulation is an evidence-based treatment for post-laminectomy/failed back syndrome, rural family medicine residents have limited knowledge about the therapy and many do not consider a referral for neuromodulation. Further research to ascertain effective implementation strategies to increase the uptake of neuromodulation for patients with post-laminectomy syndrome is desperately needed.Keywords: spinal cord stimulation, neuromodulation, rural, implementation science, dissemination

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. METHODS Patients with NSRBP, as defined above and with a spine surgeon consultation required for confirmation, were randomized 1:1 to patients undergoing CMM with and without 10-kHz SCS. CMM included nonsurgical treatment for back pain, according to physicians’ best practices and clinical guidelines. Primary and secondary endpoints included the responder rate (≥ 50% pain relief), disability (Oswestry Disability Index [ODI]), global impression of change, quality of life (EQ-5D-5L), and change in daily opioid use and were analyzed 3 and 6 months after randomization. The protocol allowed for an optional crossover at 6 months for both arms, with observational follow-up over 12 months. RESULTS In total, 159 patients were randomized; 76 received CMM, and 69 (83.1%) of the 83 patients who were assigned to the 10-kHz SCS group received a permanent implant. At the 3-month follow-up, 80.9% of patients who received stimulation and 1.3% of those who received CMM were found to be study responders (primary outcome, ≥ 50% pain relief; p < 0.001). There was also a significant difference between the treatment groups in all secondary outcomes at 6 months (p < 0.001). In the 10-kHz SCS arm, outcomes were sustained, including a mean 10-cm visual analog scale score of 2.1 ± 2.3 and 2.1 ± 2.2 and mean ODI score of 24.1 ± 16.1 and 24.0 ± 17.0 at 6 and 12 months, respectively (p = 0.9). In the CMM arm, 74.7% (56/75) of patients met the criteria for crossover and received an implant. The crossover arm obtained a 78.2% responder rate 6 months postimplantation. Five serious adverse events occurred (procedure-related, of 125 total permanent implants), all of which resolved without sequelae. CONCLUSIONS The study results, which included follow-up over 12 months, provide important insights into the durability of 10-kHz SCS therapy with respect to chronic refractory back pain, physical function, quality of life, and opioid use, informing the current clinical practice for pain management in patients with NSRBP.

Background: Seven million US adults are living with painful diabetic neuropathy (PDN) with current treatments ineffective for many. Recent RCT results demonstrate high-frequency (10 kHz) spinal cord stimulation (SCS) relieves pain and may improve sensation in patients with refractory symptoms. Methods: Prospective, multicenter RCT assigned 216 patients 1:1 to 10 kHz SCS (Nevro Corp.) plus conventional medical management (CMM) or CMM alone (NCT03228420). Patients had PDN symptoms ≥12 months, lower limb pain ≥5 cm (10 cm visual analog scale), and hemoglobin A1c ≤10%. Outcomes included pain, neurological function, and quality of life over 12 months. Patients could opt to crossover to the alternative treatment at 6 months. Results: Baseline characteristics were similar between groups. At 6 months, 82% of the CMM group crossed over to SCS treatment and none in the 10 kHz SCS group crossed over to CMM. In total, 154 patients underwent SCS implant; 5 (3.2%) were explanted for infection. At 12-month follow-up, there were clear, sustained benefits of 10 kHz SCS in lower limb pain, pain interference with daily living, sleep quality, and activity (Figure). Most patients treated with 10 kHz SCS also showed improvements on neurological examination. Conclusion: The largest RCT to date of SCS management of PDN demonstrates durable pain relief and improved quality of life over 12 months with high-frequency (10 kHz) SCS. Disclosure E. Petersen: Consultant; Self; Abbott, Medtronic, Nevro Corp., Research Support; Self; Neuros Medical, Inc., Nevro Corp., ReNeuron Group plc, Saluda, Stock/Shareholder; Self; SynerFuse. N. Mehta: Research Support; Self; Nevro Corp. P. W. Wu: None. C. Argoff: Consultant; Self; Nevro Corp., Vertex Pharmaceuticals Incorporated, Other Relationship; Self; Amgen Inc., Eli Lilly and Company, Teva Pharmaceutical Industries Ltd., Speaker’s Bureau; Self; AbbVie Inc. C. E. Nasr: Advisory Panel; Self; Nevro Corp. R. Taylor: Consultant; Self; Nevro Corp. Senza-pdn study group: n/a. J. Scowcroft: Research Support; Self; Boston Scientific Corporation, Nevro Corp. E. S. Brooks: Employee; Self; Nevro Corp. J. L. White: Advisory Panel; Self; Eli Lilly and Company, Nevro Corp. K. Amirdelfan: Advisory Panel; Self; Biotronik, Nevro Corp., Consultant; Self; Boston Scientific Corporation. M. Guirguis: Consultant; Self; Avanos medical, Nevro Corp. J. Xu: None. D. G. Patterson: Advisory Panel; Self; Advanced Infusion Systems (AIS), Spark Biomedical, Consultant; Self; Vivex Biologics, Other Relationship; Self; Abbott Laboratories, CornerLoc, Saluda, Vertos Medical Inc., Speaker’s Bureau; Self; AbbVie Inc., Amgen Inc., Lundbeck. V. Galan: None. Funding Nevro Corp.

Background Despite improvements in fetal survival for pregnancies that are affected by twin-twin transfusion syndrome since the introduction of laser photocoagulation, prematurity remains a major source of neonatal morbidity and death. Objective To investigate the indications and factors that influence the timing of delivery after laser treatment, we collected delivery information regarding twin-twin transfusion syndrome cases in a large multicenter cohort. Study Design Eleven North American Fetal Therapy Network centers conducted a retrospective review of twin-twin transfusion syndrome patients who underwent laser photocoagulation. Clinical, demographic, and ultrasound variables that included twin-twin transfusion syndrome stage and gestational age at treatment and delivery were recorded. Primary and secondary maternal and fetal indications for delivery were identified. Univariate analysis was used to select candidate variables with significant correlation with latency and gestational age at delivery. Multivariable Cox regression with competing risk analysis was used to determine the independent associations. Results A total of 847 pregnancies were analyzed. After laser therapy, the average latency to delivery was 10.11±4.8 weeks, and the mean gestational age at delivery was 30.7±4.5 weeks. Primary maternal indications for delivery comprised 79% of cases. The leading indications included spontaneous labor (46.8%), premature rupture of membranes (17.1%), and placental abruption (8.4%). Primary fetal indications accounted for 21% of cases; the most frequent indications included donor nonreassuring status (20.5%), abnormal donor Doppler evaluations (15.1%), and donor growth restriction (14.5%). The most common secondary indications for delivery were premature rupture of membranes, spontaneous labor, and donor growth restriction. Multivariate modeling found gestational age at diagnosis, stage, history of previous amnioreduction, cerclage, intertwin membrane disruption, procedure complications, and chorioamniotic membrane separation to be predictors for both gestational age at delivery and latency. Conclusion Premature delivery after laser therapy for twin-twin transfusion syndrome is primarily the result of spontaneous labor, preterm premature rupture of membranes, and nonreassuring status of the donor fetus. Placental abruption was found to be a frequent complication that resulted in early delivery. Future research should be directed toward the goal of prolonging gestation after laser photocoagulation to further reduce morbidity and mortality rates that are associated with twin-twin transfusion syndrome.

Background: Six million adults in the U.S. are living with painful diabetic neuropathy (PDN) and current treatments are ineffective for many. Preliminary data suggest 10 kHz spinal cord stimulation (SCS) relieves pain and may improve sensation in refractory patients. Methods: Prospective, multicenter, randomized controlled trial (SENZA-PDN) with 216 subjects assigned 1:1 to 10 kHz SCS (Nevro Corp.) combined with conventional medical management (CMM) or CMM alone. Patients with PDN symptoms ≥12 months, lower limb pain intensity ≥5cm (0-10cm visual analog scale [VAS]), hemoglobin A1c ≤10%, and upper limb pain intensity Results: Randomization of 113 subjects to 10 kHz SCS+CMM and 103 to CMM resulted in groups well-matched at baseline. There were 2 procedure-related infections in the 10 kHz SCS+CMM group (1.8%). At 3-month follow-up, there were clear differences in lower limb pain scores (Fig 1A) and Diabetes Quality of Life (Fig 1B). Patients in the 10 kHz SCS+CMM group demonstrated improvements in sensation on physical examination (Fig 1C) and by patient report of numbness (Fig 1D). In addition, differences between treatment groups were observed in 6-minute walk test distance (Fig 1E) and sleep (Fig 1F). Conclusion: SENZA-PDN is the largest RCT to-date of SCS management of PDN and will inform the treatment continuum. Disclosure E. Petersen: Consultant; Self; Abbott, Medtronic, Neuros Medical, Nevro. Research Support; Self; Medtronic, Neuros Medical, Nevro, ReNeuron. T. Stauss: None. J.L. White: Research Support; Self; Allergan plc., Astellas Pharma Inc., Bayer Healthcare Pharmaceuticals Inc., Bristol-Myers Squibb, Eli Lilly and Company, Fitbit, Inc., Nevro, NovMetaPharma Co. Ltd., Theracos, Inc. S.M. Sills: None. K. Amirdelfan: Consultant; Self; Biotronik, Medtronic, Nevro Corporation, Saluda. M. Guirguis: Consultant; Self; Boston Scientific, nevro incop, spr. J. Xu: None. C. Yu: None. A. Nairizi: None. D.G. Patterson: Research Support; Self; Nevro Corporation. V. Galan: None. N. Mehta: Advisory Panel; Self; Nevro. Research Support; Self; Nevro. S.P. Lad: None. D. DiBenedetto: None. P.W. Wu: None. C.E. Nasr: Other Relationship; Self; Exilxis, Neurogastrx, Nevro Corp. R. Taylor: Consultant; Self; Nevro. E.S. Brooks: Employee; Self; Nevro. J. Subbaroyan: Employee; Self; Nevro Corp. B. Gliner: Employee; Self; Nevro Corp. D.L. Caraway: Employee; Self; Nevro. N. Mekhail: Consultant; Self; Boston Scientific, Nevro, Nuvectra, Relievant, Saluda, Sollis Therapeutics, Vertos Medical. Research Support; Self; Halyard, Mallinckrodt Pharmaceuticals, Mesoblast, Neuros Medical. Funding Nevro Corp.

This investigation aimed to survey undergraduate students on their social media preference, active participation, lurking behaviours, and motivational factors. This investigation focused on participation patterns and outcomes between the students' most used social media (MUSM) and least used social media (LUSM). A total of 769 participants consented to complete the electronic survey. The investigation results indicated that as undergraduate students change their class standings, so does their use of social media. Sophomores are more active in their MUSM compared to freshman undergraduate students. Sophomores were also more likely to lurk compared to junior and senior undergraduate students. The results also indicate that both commitment and individual motivational factors encourage undergraduate students to log in and use their LUSM. Lastly, results showed that undergraduate students use and participate in social media for traditional as well as a range of alternative activities. The main alternative activity performed by undergraduate students in their MUSM and LUSM was private and direct messaging to share content and chat with others.

Objectives Deep brain stimulation (DBS) of the subthalamic nucleus (STN) can be a highly effective treatment for Parkinson9s disease. However, therapeutic efficacy can be limited by inconsistent targeting of this nucleus. It was shown previously that an increase in local field potential (LFP) power over the beta frequency band may provide intraoperative confirmation of STN targeting. Whether the depth of this focal increase also helps predict the depth and voltage chosen for chronic stimulation is tested here. Methods LFPs were recorded from the contacts of 57 DBS electrodes as the latter were advanced in 2 mm steps from above to below the intended surgical target point in STN. Results A spectral peak in the bipolar LFP was recorded in the 11–35 Hz band at the lowest contact pair that underwent a steep but focal change during electrode descent in all but three sides. The depth of the initial intraoperative step increase in beta correlated with the depth of the contact independently chosen for chronic DBS (Spearman9s rho=0.35, p=0.01). In addition, the absolute difference between the depths of the initial increase in beta and the contact chosen for chronic DBS correlated with the voltage used for chronic stimulation (rho=0.322, p=0.017). Thus more voltage had to be employed if a depth was selected for chronic stimulation that differed from that of the beta generator. Conclusions Online spectral analysis of LFPs recorded from the DBS electrode may help identify the optimal therapeutic target in the STN region for DBS.

The International Neuromodulation Society (INS) has identified a need for evaluation and analysis of the practice of neurostimulation of the brain and extracranial nerves of the head to treat chronic pain.The INS board of directors chose an expert panel, the Neuromodulation Appropriateness Consensus Committee (NACC), to evaluate the peer-reviewed literature, current research, and clinical experience and to give guidance for the appropriate use of these methods. The literature searches involved key word searches in PubMed, EMBASE, and Google Scholar dated 1970-2013, which were graded and evaluated by the authors.The NACC found that evidence supports extracranial stimulation for facial pain, migraine, and scalp pain but is limited for intracranial neuromodulation. High cervical spinal cord stimulation is an evolving option for facial pain. Intracranial neurostimulation may be an excellent option to treat diseases of the nervous system, such as tremor and Parkinson's disease, and in the future, potentially Alzheimer's disease and traumatic brain injury, but current use of intracranial stimulation for pain should be seen as investigational.The NACC concludes that extracranial nerve stimulation should be considered in the algorithmic treatment of migraine and other disorders of the head. We should strive to perfect targets outside the cranium when treating pain, if at all possible.