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Hasoon J, Vu PD, Mousa B, Markaryan AR, Sarwary ZB, Pinkhasova D, Chen GH, Gul F, Robinson CL, Simopoulos TT, Gill J, Viswanath O. Device-Related Complications Associated with Cylindrical Lead Spinal Cord Stimulator Implants: A Comprehensive Review. Curr Pain Headache Rep 2024; 28:941-947. [PMID: 38850491 DOI: 10.1007/s11916-024-01280-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/30/2024] [Indexed: 06/10/2024]
Abstract
PURPOSE OF REVIEW Spinal cord stimulation (SCS) is an increasingly utilized therapy for the treatment of neuropathic pain conditions. Though minimally invasive and reversable, there are several important device-related complications that physicians should be aware of before offering this therapy to patients. The aim of this review is to synthesize recent studies in device-related SCS complications pertaining to cylindrical lead implantation and to discuss etiologies, symptoms and presentations, diagnostic evaluation, clinical implications, and treatment options. RECENT FINDINGS Device-related complications are more common than biologic complications. Device-related complications covered in this review include lead migration, lead fracture, lead disconnection, generator failure, loss of charge, generator flipping, hardware related pain, and paresthesia intolerance. The use of SCS continues to be an effective option for neuropathic pain conditions. Consideration of complications prior to moving forward with SCS trials and implantation is a vital part of patient management and device selection. Knowledge of these complications can provide physicians and other healthcare professionals the ability to maximize patient outcomes.
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Affiliation(s)
- Jamal Hasoon
- Department of Anesthesiology, Critical Care and Pain Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, TX, USA.
| | - Peter D Vu
- Department of Physical Medicine and Rehabilitation, McGovern Medical School, The University of Texas Health Science Center at Houston, TX, USA
| | - Bakir Mousa
- University of Arizona College of Medicine, Phoenix, AZ, USA
| | | | | | | | - Grant H Chen
- Department of Anesthesiology, Critical Care and Pain Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, TX, USA
| | - Farah Gul
- Department of Internal Medicine, Khyber Medical College, Peshawar, Pakistan
| | - Christopher L Robinson
- Department of Anesthesiology, Critical Care, and Pain Medicine, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Thomas T Simopoulos
- Department of Anesthesiology, Critical Care, and Pain Medicine, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Jatinder Gill
- Department of Anesthesiology, Critical Care, and Pain Medicine, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Omar Viswanath
- Department of Anesthesiology, Creighton University School of Medicine, Phoenix, AZ, USA
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Hagedorn JM, George TK, Aiyer R, Schmidt K, Halamka J, D’Souza RS. Artificial Intelligence and Pain Medicine: An Introduction. J Pain Res 2024; 17:509-518. [PMID: 38328019 PMCID: PMC10848920 DOI: 10.2147/jpr.s429594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 12/28/2023] [Indexed: 02/09/2024] Open
Abstract
Artificial intelligence was introduced 60 years ago and has evolved immensely since that time. While artificial intelligence is found in nearly all aspects of our life, the use of artificial intelligence in the healthcare industry has only recently become apparent and more widely discussed. It is expected that artificial intelligence will allow improved disease recognition, treatment optimization, cost and time savings, product development, decision making, and marketing. For pain medicine specifically, these same benefits will be translatable and we can expect better disease recognition and treatment selection. As adoption occurs with this impressive technology, it will be imperative for the pain medicine community to be informed on proper definitions and expected use cases for artificial intelligence. Our objective was to provide pain medicine physicians an overview of artificial intelligence, including important definitions to aid understanding, and to offer potential clinical applications pertinent to the specialty.
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Affiliation(s)
- Jonathan M Hagedorn
- Department of Anesthesiology and Perioperative Medicine, Division of Pain Medicine, Mayo Clinic, Rochester, MN, USA
| | - Tony K George
- Department of Physical Medicine and Rehabilitation, University Orthopedic Associates, Somerset, NJ, USA
| | - Rohit Aiyer
- Integrative Sports & Spine, Long Beach, CA, USA
| | - Keith Schmidt
- Comprehensive Pain Management Program, St. Alexius Medical Center, Hoffman Estates, IL, USA
| | - John Halamka
- Mayo Clinic Platform, Mayo Clinic, Rochester, MN, USA
| | - Ryan S D’Souza
- Department of Anesthesiology and Perioperative Medicine, Division of Pain Medicine, Mayo Clinic, Rochester, MN, USA
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Salmon J, Bates D, Du Toit N, Verrills P, Yu J, Taverner MG, Mohabbati V, Green M, Heit G, Levy R, Staats P, Kottalgi S, Makous J, Mitchell B. Treating Chronic, Intractable Pain with a Miniaturized Spinal Cord Stimulation System: 1-Year Outcomes from the AUS-nPower Study During the COVID-19 Pandemic. J Pain Res 2024; 17:293-304. [PMID: 38274409 PMCID: PMC10809818 DOI: 10.2147/jpr.s436889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 01/09/2024] [Indexed: 01/27/2024] Open
Abstract
Purpose Spinal cord stimulation (SCS) is a highly effective treatment for chronic neuropathic pain. Despite recent advances in technology, treatment gaps remain. A small SCS system with a miniaturized implantable pulse generator (micro-IPG; <1.5 cm3 in volume) and an externally worn power source may be preferred by patients who do not want a large, implanted battery. We report here the long-term outcomes from the first-in-human study evaluating the safety and performance of a new neurostimulation system. Patients and Methods This was a prospective, multi-center, open-label, single-arm study to evaluate this SCS system, in the treatment of chronic, intractable leg and low-back pain. Consented subjects who passed screening continued on to the long-term phase of the study. One-year, patient-reported outcomes (PRO's) such as pain (Numeric Rating Scale, NRS), functional disability, quality of life, and mood were captured. Results Twenty-six (26) evaluable subjects with permanent implants were included in this analysis. The average leg pain NRS score decreased from 6.8 ± 1.2 at baseline to 1.1 ± 1.2 at the end of the study (p < 0.001), while the average low-back pain NRS score decreased from 6.8 ± 1.2 to 1.5 ± 1.2 (p < 0.001). The responder rate (proportion with ≥50% pain relief) was 91% in the leg(s) and 82% in the low back. There were significant improvements in functional disability (Oswestry Disability Index) and in mood (Beck Depression Inventory), demonstrating a 46% and 62% improvement, respectively (p < 0.001). Eleven-point Likert scales demonstrated the wearable to be very comfortable and very easy to use. Conclusion There were considerable challenges conducting a clinical study during the COVID-19 pandemic, such as missed study programming visits. Nevertheless, subjects had significant PRO improvements through 1-year. The small size of the implanted device, along with a proprietary waveform, may allow for improved SCS outcomes and a drop in incidence of IPG-pocket pain.
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Affiliation(s)
- John Salmon
- Pain Management, Pain Care Perth, Perth Cottesloe, WA, Australia
| | - Daniel Bates
- Pain Management, Metro Pain Group, Melbourne, VIC, Australia
| | - Neels Du Toit
- Pain Management, Metro Pain Group, Melbourne, VIC, Australia
| | - Paul Verrills
- Pain Management, Metro Pain Group, Melbourne, VIC, Australia
| | - James Yu
- Pain Management, Sydney Spine and Pain, Sydney, NSW, Australia
| | - Murray G Taverner
- Pain Management, Frankston Pain Management, Frankston, VIC, Australia
| | - Vahid Mohabbati
- Pain Management, Sydney Pain Management Centre, Sydney, NSW, Australia
| | - Matthew Green
- Pain Management, Pain Medicine of South Australia, Adelaide, SA, Australia
| | - Gary Heit
- Department of Neurosurgery, Hue University of Medicine and Pharmacy, Hue, Vietnam
| | - Robert Levy
- Neurosurgery, Institute for Neuromodulation, Boca Raton, FL, USA
| | | | | | | | - Bruce Mitchell
- Pain Management, Metro Pain Group, Melbourne, VIC, Australia
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Koushik SS, Raghavan J, Saranathan S, Slinchenkova K, Viswanath O, Shaparin N. Complications of Spinal Cord Stimulators-A Comprehensive Review Article. Curr Pain Headache Rep 2024; 28:1-9. [PMID: 37855944 DOI: 10.1007/s11916-023-01178-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/03/2023] [Indexed: 10/20/2023]
Abstract
PURPOSE OF REVIEW Spinal cord stimulation has been increasing in influence as an option to regulate pain, especially in the chronic pain patient population. However, even with the numerous changes made to this technology since its inception, it is still prone to various complications such as hardware issues, neurological injury/epidural hematoma, infections, and other biological concerns. The purpose of this article is to thoroughly review and evaluate literature pertaining to the complications associated with percutaneous spinal cord stimulation. RECENT FINDINGS Lead migration is generally the most common complication of percutaneous spinal cord stimulation; however, recent utilization of various anchoring techniques has been discussed and experienced clinical success in decreasing the prevalence of lead migration and lead fractures. With newer high-frequency systems gaining traction to improve pain management and decrease complications as compared to traditional systems, rechargeable implantable pulse generators have been the preferred power source. However, recent findings may suggest that these rechargeable implantable pulse generators do not significantly increase battery life as much as was proposed. Intraoperative neuromonitoring has seen success in mitigating neurological injury postoperatively and may see more usage in the future through more testing. Though the occurrence of infection and biological complications, including dural puncture and skin erosion, has been less frequent over time, they should still be treated in accordance with established protocols. While many complications can arise following percutaneous spinal cord stimulator implantation, the procedure is less invasive than open implantation and has seen largely positive patient feedback. Hardware complications, the more common issues that can occur, rarely indicate a serious risk and can generally be remedied through reoperation. However, less common cases such as neurological injury, infections, and biological complications require prompt diagnosis to improve the condition of the patient and prevent significant damage.
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Affiliation(s)
- Sarang S Koushik
- Department of Anesthesiology, Valleywise Health Medical Center, Creighton University School of Medicine, Phoenix, AZ, USA.
| | - Jagun Raghavan
- Pre-Medical Student, Ohio State University, Columbus, OH, USA
| | | | - Kateryna Slinchenkova
- Department of Anesthesiology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Omar Viswanath
- Innovative Pain and Wellness, LSU Health Sciences Center School of Medicine, Creighton University School of Medicine, Phoenix, AZ, USA
| | - Naum Shaparin
- Department of Anesthesiology, Albert Einstein College of Medicine, Bronx, NY, USA
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